Java 文件傳輸助手的實現(xiàn)(單機版)
更新時間：2020年05月06日 14:53:52 作者：360°順滑
這篇文章主要介紹了Java 文件傳輸助手的實現(xiàn)(單機版)，文中通過示例代碼介紹的非常詳細，對大家的學習或者工作具有一定的參考學習價值，需要的朋友們下面隨著小編來一起學習學習吧
項目介紹
用 Java 實現(xiàn)單機版的文件傳輸助手項目。
涉及技術知識：
- Swing 組件
- I/O流
- 正則表達式
- Java 事務處理機制
基礎功能：
- 登錄、注冊
- 發(fā)送文字
- 發(fā)送圖片、文件
- 文字、圖片、文件的信息記錄
- 歷史記錄的保存、回顯及清空
- 信息發(fā)送的日期
- 退出
高級功能：
- 發(fā)送表情包
- 查看和查找歷史記錄
- 點擊歷史記錄的文件圖片能直接打開
- 拖拽輸入信息、圖片、文件
功能總覽：
功能實現(xiàn)
一、登錄
進入登錄界面
未輸入賬號，登錄彈出提示
輸入賬號，但未輸入密碼登錄時彈出提示
賬號或者密碼輸入錯誤登錄時彈出提示
登錄成功時進入主界面
登錄界面：
package frame;
import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import function.Login;
/**
* 文件傳輸助手登陸界面
*
* @author：360°順滑
*
* @date：2020/04/27
*
*/
public class LoginFrame {
public static JFrame loginJFrame;
public static JLabel userNameLabel;
public static JTextField userNameTextField;
public static JLabel passwordLabel;
public static JPasswordField passwordField;
public static JButton loginButton;
public static JButton registerButton;
public static void main(String[] args) {
// 創(chuàng)建窗體
loginJFrame = new JFrame("文件傳輸助手");
loginJFrame.setSize(500, 300);
loginJFrame.setLocationRelativeTo(null);
loginJFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
ImageIcon image = new ImageIcon("src/pictures/logo.png");
loginJFrame.setIconImage(image.getImage());
loginJFrame.setResizable(false);
// 創(chuàng)建內(nèi)容面板
Container container = loginJFrame.getContentPane();
container.setLayout(null);
// 創(chuàng)建“賬號”標簽
userNameLabel = new JLabel("賬號：");
userNameLabel.setFont(new Font("行楷", Font.BOLD, 25));
userNameLabel.setBounds(60, 25, 100, 100);
container.add(userNameLabel);
// 創(chuàng)建輸入賬號文本框
userNameTextField = new JTextField();
userNameTextField.setFont(new Font("黑體", Font.PLAIN, 23));
userNameTextField.setBounds(133, 61, 280, 33);
container.add(userNameTextField);
// 創(chuàng)建“密碼”標簽
passwordLabel = new JLabel("密碼：");
passwordLabel.setFont(new Font("行楷", Font.BOLD, 25));
passwordLabel.setBounds(60, 90, 100, 100);
container.add(passwordLabel);
// 創(chuàng)建輸入密碼文本框
passwordField = new JPasswordField();
passwordField.setBounds(133, 127, 280, 33);
passwordField.setFont(new Font("Arial", Font.BOLD, 23));
container.add(passwordField);
// 創(chuàng)建登錄按鈕
loginButton = new JButton("登錄");
loginButton.setBounds(170, 185, 70, 40);
loginButton.setFont(new Font("微軟雅黑", 1, 18));
loginButton.setBackground(Color.WHITE);
loginButton.setFocusPainted(false);
loginButton.setBorderPainted(false);
container.add(loginButton);
// 創(chuàng)建注冊按鈕
registerButton = new JButton("注冊");
registerButton.setBounds(282, 185, 70, 40);
registerButton.setFont(new Font("微軟雅黑", 1, 18));
registerButton.setBackground(Color.WHITE);
registerButton.setFocusPainted(false);
registerButton.setBorderPainted(false);
container.add(registerButton);
// 顯示窗體
loginJFrame.setVisible(true);
addListen();
}
// 為按鈕添加監(jiān)聽器
public static void addListen() {
// 為登錄按鈕添加監(jiān)聽事件
loginButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
// 創(chuàng)建Login對象并把LoginFrame的文本框內(nèi)容作為參數(shù)傳過去
Login login = new Login(userNameTextField, passwordField);
// 判斷是否符合登錄成功的條件
if (login.isEmptyUserName()) {
emptyUserName(loginJFrame);
} else {
if (login.isEmptyPassword()) {
emptyPasswordJDialog(loginJFrame);
} else {
if (login.queryInformation()) {
loginJFrame.dispose();
MainFrame mainFrame = new MainFrame(userNameTextField.getText());
mainFrame.init();
} else {
failedLoginJDialog(loginJFrame);
}
}
}
}
});
// 為注冊按鈕添加監(jiān)聽事件
registerButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
// 隱藏當前登錄窗口
loginJFrame.setVisible(false);
// 打開注冊窗口
new RegisterFrame().init();
}
});
}
/*
* 由于各個標簽長度不同，所以為了界面美觀，就寫了三個彈出對話框而不是一個！
*
*/
// 未輸入賬號時彈出提示對話框
public static void emptyUserName(JFrame jFrame) {
JDialog jDialog = new JDialog(jFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocationRelativeTo(null);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel("未輸入賬號！");
jLabel.setFont(new Font("行楷", 0, 21));
jLabel.setBounds(82, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
// 未輸入密碼時彈出提示對話框
public static void emptyPasswordJDialog(JFrame jFrame) {
JDialog jDialog = new JDialog(jFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocationRelativeTo(null);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel("未輸入密碼！");
jLabel.setFont(new Font("行楷", 0, 21));
jLabel.setBounds(82, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
// 賬號或密碼輸入錯誤！
public static void failedLoginJDialog(JFrame jFrame) {
JDialog jDialog = new JDialog(jFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocationRelativeTo(null);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel("賬號或密碼輸入錯誤！");
jLabel.setFont(new Font("行楷", 0, 20));
jLabel.setBounds(47, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
}
登錄判斷
package function;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
/**
* 文件傳輸助手登錄功能
*
* @author：360°順滑
*
* @date: 2020/04/29
*
*/
public class Login {
JTextField userNameTextField;
JPasswordField passwordField;
public Login(JTextField userNameTextField, JPasswordField passwordField) {
this.userNameTextField = userNameTextField;
this.passwordField = passwordField;
}
//判斷賬號是否為空方法
public boolean isEmptyUserName() {
if (userNameTextField.getText().equals(""))
return true;
else
return false;
}
//判斷密碼是否為空方法
public boolean isEmptyPassword() {
//操作密碼框文本要先將其轉換為字符串
if ("".equals(new String(passwordField.getPassword())))
return true;
else
return false;
}
// 查詢是否存在該賬號密碼
public boolean queryInformation() {
File file = new File("src/txt/userInformation.txt");
FileReader fileReader = null;
BufferedReader bufferedReader = null;
boolean vis = false;
try {
fileReader = new FileReader(file);
bufferedReader = new BufferedReader(fileReader);
Pattern userNamePattern = Pattern.compile("用戶名：.+");
Pattern passwordPattern = Pattern.compile("密碼：.+");
String str1 = null;
while ((str1 = bufferedReader.readLine()) != null) {
Matcher userNameMatcher = userNamePattern.matcher(str1);
if(userNameMatcher.find()) {
if (("用戶名：" + userNameTextField.getText()).equals(userNameMatcher.group())) {
String str2 = bufferedReader.readLine();
Matcher passwordMatcher = passwordPattern.matcher(str2);
if(passwordMatcher.find()) {
if (("密碼：" + new String(passwordField.getPassword())).equals(passwordMatcher.group())) {
vis = true;
break;
}
}
}
}
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
bufferedReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fileReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (vis)
return true;
else
return false;
}
}
主界面
package frame;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetListener;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.Box;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
import function.DropTargetFile;
import function.FileSend;
import function.RecordsEcho;
import function.TextSend;
/**
* 文件傳輸助手主界面
*
* @author 360°順滑
*
* @date:2020/04/29 ~ 2020/04/30
*
*/
public class MainFrame {
String userName;
public MainFrame() {
};
public MainFrame(String userName) {
this.userName = userName;
}
private JButton fileButton;
private JButton historicRecordsButton;
private JButton sendButton;
private JTextPane showPane;
private JTextPane inputPane;
private JButton expressionButton;
private JScrollPane scrollShowPane;
private Box buttonBox;
private Box inputBox;
private Box sendBox;
private Box totalBox;
private ImageIcon image;
static JFrame mainFrame;
public void init() {
// 顯示文本窗格
showPane = new JTextPane();
showPane.setSize(600, 400);
showPane.setBackground(Color.WHITE);
showPane.setEditable(false);
showPane.setBorder(null);
showPane.setFont(new Font("宋體", 0, 25));
// 顯示文本窗格添加滾動條
scrollShowPane = new JScrollPane(showPane);
// 表情包按鈕并添加圖標
Icon expressionIcon = new ImageIcon("src/pictures/expression.png");
expressionButton = new JButton(expressionIcon);
expressionButton.setBackground(Color.WHITE);
expressionButton.setFocusPainted(false);
expressionButton.setBorderPainted(false);
// 文件按鈕并添加圖標
Icon fileIcon = new ImageIcon("src/pictures/file.png");
fileButton = new JButton(fileIcon);
fileButton.setBackground(Color.WHITE);
fileButton.setFocusPainted(false);
fileButton.setBorderPainted(false);
// 歷史記錄按鈕并添加圖標
Icon historicRecordsIcon = new ImageIcon("src/pictures/historicRecords.png");
historicRecordsButton = new JButton(historicRecordsIcon);
historicRecordsButton.setBackground(Color.WHITE);
historicRecordsButton.setFocusPainted(false);
historicRecordsButton.setBorderPainted(false);
// 按鈕Box容器添加三個按鈕
buttonBox = Box.createHorizontalBox();
buttonBox.setPreferredSize(new Dimension(1000, 50));
buttonBox.add(Box.createHorizontalStrut(10));
buttonBox.add(expressionButton);
buttonBox.add(Box.createHorizontalStrut(10));
buttonBox.add(fileButton);
buttonBox.add(Box.createHorizontalStrut(10));
buttonBox.add(historicRecordsButton);
// 添加 “歷史記錄”按鈕到右邊框的距離 到buttonBox容器中
buttonBox.add(Box.createHorizontalGlue());
// 輸入文本窗格
inputPane = new JTextPane();
inputPane.setSize(600, 300);
inputPane.setFont(new Font("宋體", 0, 24));
inputPane.setBackground(Color.WHITE);
JScrollPane scrollInputPane = new JScrollPane(inputPane);
// 輸入?yún)^(qū)域的Box容器
inputBox = Box.createHorizontalBox();
inputBox.setPreferredSize(new Dimension(1000, 150));
inputBox.add(scrollInputPane);
// 發(fā)送按鈕
sendButton = new JButton("發(fā)送(S)");
sendButton.setFont(new Font("行楷", Font.PLAIN, 20));
sendButton.setBackground(Color.WHITE);
sendButton.setFocusPainted(false);
sendButton.setBorderPainted(false);
// 發(fā)送Box容器并添加發(fā)送按鈕
sendBox = Box.createHorizontalBox();
sendBox.setPreferredSize(new Dimension(1000, 50));
sendBox.setBackground(Color.white);
sendBox.add(Box.createHorizontalStrut(710));
sendBox.add(Box.createVerticalStrut(5));
sendBox.add(sendButton);
sendBox.add(Box.createVerticalStrut(5));
// 總的Box容器添加以上3個Box
totalBox = Box.createVerticalBox();
totalBox.setPreferredSize(new Dimension(1000, 250));
totalBox.setSize(1000, 400);
totalBox.add(buttonBox);
totalBox.add(inputBox);
totalBox.add(Box.createVerticalStrut(3));
totalBox.add(sendBox);
totalBox.add(Box.createVerticalStrut(3));
// 設置主窗體
mainFrame = new JFrame("文件傳輸助手");
mainFrame.setSize(950, 800);
mainFrame.setLocationRelativeTo(null);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// 改變窗體logo
image = new ImageIcon("src/pictures/logo.png");
mainFrame.setIconImage(image.getImage());
mainFrame.setLayout(new BorderLayout());
// 添加窗體以上兩個主要容器
mainFrame.add(scrollShowPane, BorderLayout.CENTER);
mainFrame.add(totalBox, BorderLayout.SOUTH);
mainFrame.setVisible(true);
// 添加監(jiān)聽器
addListen();
// 信息記錄回顯到展示面板
RecordsEcho echo = new RecordsEcho(userName, showPane);
echo.read();
}
// 提示對話框
public static void warnJDialog(String information) {
JDialog jDialog = new JDialog(mainFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocation(770, 400);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel(information);
jLabel.setFont(new Font("微軟雅黑", 0, 18));
jLabel.setBounds(65, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
// 為彈出對話框按鈕添加監(jiān)聽事件
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
// 添加監(jiān)聽事件
@SuppressWarnings("unused")
public void addListen() {
/*
* 為輸入文本添加目標監(jiān)聽器
*/
// 創(chuàng)建拖拽目標監(jiān)聽器
DropTargetListener listener = new DropTargetFile(inputPane);
// 在 inputPane上注冊拖拽目標監(jiān)聽器
DropTarget dropTarget = new DropTarget(inputPane, DnDConstants.ACTION_COPY_OR_MOVE, listener, true);
// 發(fā)送按鈕監(jiān)聽事件
sendButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
TextSend textSend = new TextSend(showPane, inputPane, userName);
textSend.sendText();
}
});
// 輸入框添加鍵盤事件
inputPane.addKeyListener(new KeyListener() {
// 發(fā)生擊鍵事件時被觸發(fā)
@Override
public void keyTyped(KeyEvent e) {
}
// 按鍵被釋放時被觸發(fā)
@Override
public void keyReleased(KeyEvent e) {
}
// 按鍵被按下時被觸發(fā)
@Override
public void keyPressed(KeyEvent e) {
// TODO Auto-generated method stub
// 如果按下的是 Ctrl + Enter 組合鍵 則換行
if ((e.getKeyCode() == KeyEvent.VK_ENTER) && e.isControlDown()) {
Document document = inputPane.getDocument();
try {
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// 否則發(fā)送
} else if (e.getKeyCode() == KeyEvent.VK_ENTER) {
TextSend textSend = new TextSend(showPane, inputPane, userName);
textSend.sendText();
}
}
});
// 表情包按鈕監(jiān)聽事件
expressionButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
new EmojiFrame(showPane, userName).init();
}
});
// 文件按鈕監(jiān)聽事件
fileButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
// TODO Auto-generated method stub
FileSend fileSend = new FileSend(userName, showPane, inputPane);
fileSend.send();
}
});
// 歷史記錄按鈕監(jiān)聽事件
historicRecordsButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
new HistoricRecordsFrame(userName, showPane).init();
}
});
}
}
登錄之前如果沒有賬號就得先注冊一個，那么進入注冊功能！
二、注冊
點擊登錄界面的注冊按鈕，進入注冊界面
未輸入賬號進行注冊時
輸入賬號但未輸入密碼或者確認密碼進行注冊時
密碼和確認密碼不一致時進行注冊
賬號已存在進行注冊時
注冊成功時
點擊確定按鈕或者關閉窗口后返回登錄界面
如果取消注冊，直接點擊返回按鈕就可以返回登錄界面了
注冊界面
package frame;
import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import function.Register;
/**
*
* 文件傳輸助手注冊界面
*
* @author 360°順滑
*
* @date: 2020/04/27 ~ 2020/04/28
*
*/
public class RegisterFrame {
public JFrame registerJFrame;
public JLabel userNameLabel;
public JTextField userNameTextField;
public JLabel passwordLabel;
public JPasswordField passwordField;
public JLabel passwordAgainLabel;
public JPasswordField passwordAgainField;
public JButton goBackButton;
public JButton registerButton;
public void init() {
// 創(chuàng)建窗體
registerJFrame = new JFrame("文件傳輸助手");
// registerJFrame.setTitle();
registerJFrame.setSize(540, 400);
registerJFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
ImageIcon image = new ImageIcon("src/pictures/logo.png");
registerJFrame.setIconImage(image.getImage());
registerJFrame.setLocationRelativeTo(null);
registerJFrame.setResizable(false);
// 創(chuàng)建內(nèi)容面板
Container container = registerJFrame.getContentPane();
container.setLayout(null);
// 創(chuàng)建“賬號”標簽
userNameLabel = new JLabel("賬號：");
userNameLabel.setFont(new Font("行楷", Font.BOLD, 25));
userNameLabel.setBounds(97, 25, 100, 100);
container.add(userNameLabel);
// 創(chuàng)建輸入賬號文本框
userNameTextField = new JTextField();
userNameTextField.setFont(new Font("黑體", Font.PLAIN, 23));
userNameTextField.setBounds(170, 61, 280, 33);
container.add(userNameTextField);
// 創(chuàng)建“密碼”標簽
passwordLabel = new JLabel("密碼：");
passwordLabel.setFont(new Font("行楷", Font.BOLD, 25));
passwordLabel.setBounds(97, 90, 100, 100);
container.add(passwordLabel);
// 創(chuàng)建輸入密碼文本框
passwordField = new JPasswordField();
passwordField.setBounds(170, 125, 280, 33);
passwordField.setFont(new Font("Arial", Font.BOLD, 23));
container.add(passwordField);
// 創(chuàng)建“確認密碼”標簽
passwordAgainLabel = new JLabel("確認密碼：");
passwordAgainLabel.setFont(new Font("行楷", Font.BOLD, 25));
passwordAgainLabel.setBounds(45, 150, 130, 100);
container.add(passwordAgainLabel);
// 創(chuàng)建確認密碼文本框
passwordAgainField = new JPasswordField();
passwordAgainField.setBounds(170, 185, 280, 33);
passwordAgainField.setFont(new Font("Arial", Font.BOLD, 23));
container.add(passwordAgainField);
// 創(chuàng)建返回按鈕
goBackButton = new JButton("返回");
goBackButton.setBounds(200, 260, 70, 40);
goBackButton.setFont(new Font("微軟雅黑", 1, 18));
goBackButton.setBackground(Color.WHITE);
goBackButton.setFocusPainted(false);
goBackButton.setBorderPainted(false);
container.add(goBackButton);
// 創(chuàng)建注冊按鈕
registerButton = new JButton("注冊");
registerButton.setBounds(330, 260, 70, 40);
registerButton.setFont(new Font("微軟雅黑", 1, 18));
registerButton.setBackground(Color.WHITE);
registerButton.setFocusPainted(false);
registerButton.setBorderPainted(false);
container.add(registerButton);
// 顯示窗體
registerJFrame.setVisible(true);
addListen();
}
// 為按鈕添加監(jiān)聽事件
public void addListen() {
// 為注冊按鈕添加監(jiān)聽事件
registerButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
// 創(chuàng)建register對象，同時將RegisterFrame的文本框內(nèi)容作為參數(shù)傳過去
Register register = new Register(userNameTextField, passwordField, passwordAgainField);
// 判斷輸入賬號是否為空
if (register.isEmptyUserName()) {
emptyUserName(registerJFrame);
} else {
// 判斷輸入密碼是否為空
if (register.isEmptyPassword()) {
emptyPasswordJDialog(registerJFrame);
}
else {
// 判斷密碼和確認密碼是否一致
if (register.isSamePassWord()) {
// 判斷賬號是否已存在
if (!register.isExistAccount()) {
// 注冊成功?。?！
register.saveInformation();
registerJFrame.dispose();
userNameTextField.setText("");
passwordField.setText("");
passwordAgainField.setText("");
new LoginFrame();
LoginFrame.loginJFrame.setVisible(true);
successRegisterJDialog(registerJFrame);
} else
existAccountJDialog(registerJFrame);
} else {
differentPasswordJDialog(registerJFrame);
passwordField.setText("");
passwordAgainField.setText("");
}
}
}
}
});
// 為返回按鈕添加監(jiān)聽事件
goBackButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// 銷毀注冊窗口
registerJFrame.dispose();
// 重新顯示登錄窗口
new LoginFrame();
LoginFrame.loginJFrame.setVisible(true);
}
});
}
/*
* 由于各個標簽長度不同，所以為了界面美觀，就寫了三個彈出對話框而不是一個！
*
*/
// 未輸入賬號時彈出提示對話框
public void emptyUserName(JFrame jFrame) {
JDialog jDialog = new JDialog(jFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocationRelativeTo(null);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel("未輸入用戶名！");
jLabel.setFont(new Font("行楷", 0, 21));
jLabel.setBounds(73, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
// 未輸入密碼時彈出提示對話框
public void emptyPasswordJDialog(JFrame jFrame) {
JDialog jDialog = new JDialog(jFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocationRelativeTo(null);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel("未輸入密碼！");
jLabel.setFont(new Font("行楷", 0, 21));
jLabel.setBounds(73, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
// 密碼和確認密碼不一致時彈出提示框
public void differentPasswordJDialog(JFrame jFrame) {
JDialog jDialog = new JDialog(jFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocationRelativeTo(null);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel("輸入密碼不一致！");
jLabel.setFont(new Font("行楷", 0, 21));
jLabel.setBounds(63, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
// 已存在賬號彈出提示對話框
public void existAccountJDialog(JFrame jFrame) {
JDialog jDialog = new JDialog(jFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocationRelativeTo(null);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel("該賬號已存在！");
jLabel.setFont(new Font("行楷", 0, 21));
jLabel.setBounds(73, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
// 成功注冊對話框
public void successRegisterJDialog(JFrame jFrame) {
JDialog jDialog = new JDialog(jFrame, "提示");
jDialog.setLayout(null);
jDialog.setSize(300, 200);
jDialog.setLocationRelativeTo(null);
ImageIcon image = new ImageIcon("src/pictures/warn.png");
jDialog.setIconImage(image.getImage());
JLabel jLabel = new JLabel("注冊成功！");
jLabel.setFont(new Font("行楷", 0, 21));
jLabel.setBounds(73, 0, 200, 100);
jDialog.add(jLabel);
JButton button = new JButton("確定");
button.setBounds(105, 80, 70, 40);
button.setFont(new Font("微軟雅黑", 1, 18));
button.setBackground(Color.WHITE);
button.setFocusPainted(false);
button.setBorderPainted(false);
jDialog.add(button);
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
// 銷毀提示對話框
jDialog.dispose();
}
});
jDialog.setVisible(true);
}
}
注冊判斷
package function;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
/**
* 文件傳輸助手注冊功能
*
* @author：360°順滑
*
* @date：2020/04/28 ~ 2020/04/29
*
*/
public class Register {
JTextField userNameTextField;
JPasswordField passwordField;
JPasswordField passwordAgainField;
//將RegisterFrame參數(shù)傳入進來
public Register(JTextField userNameTextField, JPasswordField passwordField, JPasswordField passwordAgainField) {
this.userNameTextField = userNameTextField;
this.passwordField = passwordField;
this.passwordAgainField = passwordAgainField;
}
//判斷賬號是否為空方法
public boolean isEmptyUserName() {
if (userNameTextField.getText().equals(""))
return true;
else
return false;
}
//判斷密碼是否為空方法
public boolean isEmptyPassword() {
//操作密碼框文本要先將其轉換為字符串
if ("".equals(new String(passwordField.getPassword())) || "".equals(new String(passwordAgainField.getPassword())))
return true;
else
return false;
}
//判斷密碼和輸入密碼是否一致方法
public boolean isSamePassWord() {
//操作密碼框文本要先將其轉換為字符串
if (new String(passwordField.getPassword()).equals(new String(passwordAgainField.getPassword())))
return true;
else
return false;
}
//判斷賬號是否已存在方法
public boolean isExistAccount() {
File file = new File("src/txt/userInformation.txt");
FileReader fileReader = null;
BufferedReader bufferedReader = null;
boolean vis = false;
try {
fileReader = new FileReader(file);
bufferedReader = new BufferedReader(fileReader);
//正則表達式
Pattern pattern = Pattern.compile("用戶名：.+");
String str = null;
while ((str = bufferedReader.readLine()) != null) {
Matcher matcher = pattern.matcher(str);
if (matcher.find()) {
if (("用戶名：" + userNameTextField.getText()).equals(matcher.group())) {
vis = true;
break;
}
}
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (bufferedReader != null) {
try {
bufferedReader.close();
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
if (fileReader != null) {
try {
fileReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
if (!vis) {
return false;
} else {
return true;
}
}
//保存信息到本地
public void saveInformation() {
File file = new File("src/txt/userInformation.txt");
FileWriter fileWriter = null;
BufferedWriter bufferedWriter = null;
try {
fileWriter = new FileWriter(file, true);
bufferedWriter = new BufferedWriter(fileWriter);
bufferedWriter.write("用戶名：" + userNameTextField.getText());
bufferedWriter.newLine();
bufferedWriter.write("密碼：" + new String(passwordField.getPassword()));
bufferedWriter.newLine();
bufferedWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (bufferedWriter != null) {
try {
bufferedWriter.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (fileWriter != null) {
try {
fileWriter.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
三、發(fā)送文字
輸入文字后可以點擊發(fā)送按鈕發(fā)送，也可以通過鍵盤Enter鍵發(fā)送
發(fā)送空白信息時彈出提示，提示框代碼在主界面類里
發(fā)送文本：
package function;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.JFrame;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
import frame.MainFrame;
/**
* 實現(xiàn)發(fā)送消息，并保存到信息記錄
*
* @author 360°順滑
*
* @date 2020/05/01
*
*/
public class TextSend {
JFrame mainFrame;
JTextPane textShowPane;
JTextPane textInputPane;
String userName;
public TextSend(JTextPane textShowPane, JTextPane textInputPane, String userName) {
this.textShowPane = textShowPane;
this.textInputPane = textInputPane;
this.userName = userName;
}
public void sendText() {
if (!("".equals(textInputPane.getText()))) {
// 獲取日期并設置日期格式
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
SimpleAttributeSet attributeSet = new SimpleAttributeSet();
// 輸入文本
String inputText = dateFormat.format(date) + "\n";
Pattern pattern = Pattern.compile(".+[\\.].+");
Matcher matcher = pattern.matcher(textInputPane.getText());
// 判斷是否為文件
boolean isFile = false;
// 判斷是否為第一個文件
boolean isFirst = true;
while (matcher.find()) {
isFile = true;
// 獲得文件名
int index = matcher.group().lastIndexOf("\\");
String fileName = matcher.group().substring(index + 1);
// 圖片的情況
if (matcher.group().endsWith(".png") || matcher.group().endsWith(".jpg")
|| matcher.group().endsWith(".jpeg") || matcher.group().endsWith("gif")) {
Document document = textShowPane.getDocument();
try {
if (isFirst) {
isFirst = false;
document.insertString(document.getLength(), inputText, new SimpleAttributeSet());
new RecordsEcho(userName, textShowPane).writeImage(matcher.group(), fileName);
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
}
else {
new RecordsEcho(userName, textShowPane).writeImage(matcher.group(), fileName);
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
}
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {// 文件的情況
Document document = textShowPane.getDocument();
try {
if (isFirst) {
isFirst = false;
document.insertString(document.getLength(), inputText, new SimpleAttributeSet());
new RecordsEcho(userName, textShowPane).writeFile(matcher.group(), fileName);
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
}
else {
new RecordsEcho(userName, textShowPane).writeFile(matcher.group(), fileName);
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
}
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
if (!isFile) {
// 實現(xiàn)發(fā)送文本太長自動換行
String str = "";
for (int i = 0; i < textInputPane.getText().length(); i++) {
if (i != 0 && i % 15 == 0)
str += "\n";
str += textInputPane.getText().charAt(i);
}
Document document = textShowPane.getDocument();
try {
document.insertString(document.getLength(), inputText + str + "\n\n", attributeSet);
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// 把信息保存到對應的用戶本地歷史記錄txt文件
SaveRecords records = new SaveRecords(userName, inputText + textInputPane.getText() + "\n\n");
records.saveRecords();
textInputPane.setText("");
} else {
new MainFrame();
MainFrame.warnJDialog("不能發(fā)送空白信息！");
}
}
}
其實這個類不單單只是發(fā)送文本這么簡單，因為后續(xù)實現(xiàn)了拖拽發(fā)送文件，拖拽后會在輸入框自動輸入文件路徑，實現(xiàn)的代碼有關聯(lián)，就寫在這里了。
四、發(fā)送圖片 、文件和表情包
圖片文件的發(fā)送主要是通過打開本地瀏覽發(fā)送的
發(fā)送文件、圖片、表情包：
package function;
import java.awt.Color;
import java.awt.Desktop;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
/**
* 實現(xiàn)打開文件按鈕發(fā)送圖片文件表情包
*
* @author 360°順滑
*
* @date 2020/05/01
*/
public class FileSend {
String userName;
String path;
String fileName;
JTextPane textShowPane;
JTextPane textInputPane;
public FileSend() {};
public FileSend(String userName, JTextPane textShowPane, JTextPane textInputPane) {
this.userName = userName;
this.textShowPane = textShowPane;
this.textInputPane = textInputPane;
}
// 彈出選擇框并判斷發(fā)送的是文件還是圖片
public void send() {
// 點擊文件按鈕可以打開文件選擇框
JFileChooser fileChooser = new JFileChooser();
int result = fileChooser.showOpenDialog(null);
if (result == JFileChooser.APPROVE_OPTION) {
// 被選擇文件路徑
path = fileChooser.getSelectedFile().getAbsolutePath();
// 被選擇文件名稱
fileName = fileChooser.getSelectedFile().getName();
// 選擇的是圖片
if (path.endsWith(".png") || path.endsWith(".jpg") || path.endsWith(".gif") || path.endsWith(".jpeg")) {
sendImage(path, fileName);
} else {
sendFile(path, fileName);
}
}
}
// 發(fā)送圖片
public void sendImage(String path, String fileName) {
// 獲取圖片
ImageIcon imageIcon = new ImageIcon(path);
// 如果圖片比整個界面大則調(diào)整大小
int width, height;
if (imageIcon.getIconWidth() > 950 || imageIcon.getIconHeight() > 400) {
width = 600;
height = 250;
} else {
width = imageIcon.getIconWidth();
height = imageIcon.getIconHeight();
}
// 設置圖片大小
imageIcon.setImage(imageIcon.getImage().getScaledInstance(width, height, 0));
// 獲取日期
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM--dd HH:mm:ss");
String input = dateFormat.format(date) + "\n";
// 為圖片名稱添加按鈕，用于打開圖片
JButton button = new JButton(fileName);
button.setFont(new Font("宋體", Font.PLAIN, 20));
button.setBackground(Color.WHITE);
button.setBorderPainted(false);
button.setFocusPainted(false);
// 獲取整個展示面板的內(nèi)容，方便圖片文件的插入
Document document = textShowPane.getDocument();
try {
// 插入日期
document.insertString(document.getLength(), input, new SimpleAttributeSet());
// 插入圖片
textShowPane.insertIcon(imageIcon);
// 換行
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
// 插入按鈕，也就是圖片名稱
textShowPane.insertComponent(button);
document.insertString(document.getLength(), "\n\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 為按鈕添加點擊事件
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
try {
// 實現(xiàn)打開文件功能
File file = new File(path);
Desktop.getDesktop().open(file);
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
}
});
// 輸入框重新清空
textInputPane.setText("");
// 保存路徑到對應的賬號信息里
String saveText = input + path + "\n\n";
SaveRecords records = new SaveRecords(userName, saveText);
records.saveRecords();
}
// 發(fā)送文件
public void sendFile(String path, String fileName) {
// 獲取固定文件圖標
Icon fileImage = new ImageIcon("src/pictures/document.png");
// 獲取日期
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String input = dateFormat.format(date) + "\n";
// 為名稱添加按鈕
JButton button = new JButton(fileName);
button.setFont(new Font("宋體", Font.PLAIN, 20));
button.setBackground(Color.WHITE);
button.setBorderPainted(false);
button.setFocusPainted(false);
// 獲取面板內(nèi)容
Document document = textShowPane.getDocument();
try {
document.insertString(document.getLength(), input, new SimpleAttributeSet());
textShowPane.insertIcon(fileImage);
textShowPane.insertComponent(button);
document.insertString(document.getLength(), "\n\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//為名稱按鈕添加監(jiān)聽事件，實現(xiàn)打開功能
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
try {
// 實現(xiàn)打開文件功能
File file = new File(path);
Desktop.getDesktop().open(file);
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
}
});
textInputPane.setText("");
// 保存路徑到對應的賬號信息里
String saveText = input + path + "\n\n";
SaveRecords records = new SaveRecords(userName, saveText);
records.saveRecords();
}
//發(fā)送表情包功能
public void sendEmoji(String path) {
// 獲取圖片
ImageIcon imageIcon = new ImageIcon(path);
// 獲取日期
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM--dd HH:mm:ss");
String input = dateFormat.format(date) + "\n";
// 獲取整個展示面板的內(nèi)容，方便圖片文件的插入
Document document = textShowPane.getDocument();
try {
// 插入日期
document.insertString(document.getLength(), input, new SimpleAttributeSet());
// 插入圖片
textShowPane.insertIcon(imageIcon);
document.insertString(document.getLength(), "\n\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 輸入框重新清空
textInputPane.setText("");
}
}
五、保存歷史記錄
發(fā)送文字、圖片、文件和表情包的信息（文字或路徑）都要保存到本地，以便歷史信息的回顯，查找歷史信息。
package function;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
/**
* 該類實現(xiàn)保存信息記錄
*
*
* @author 360°順滑
*
* @date 2020/05/01
*
*/
public class SaveRecords {
String userName;
String input;
public SaveRecords(String userName,String input) {
this.userName = userName;
this.input = input;
}
public void saveRecords() {
String path = "src/txt/" + userName + ".txt";
File file = new File(path);
// 文件不存在就創(chuàng)建一個
if (!file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
FileWriter fileWriter = null;
BufferedWriter bufferedWriter = null;
try {
fileWriter = new FileWriter(file,true);
bufferedWriter = new BufferedWriter(fileWriter);
bufferedWriter.write(input);
bufferedWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (bufferedWriter != null) {
try {
bufferedWriter.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (fileWriter != null) {
try {
fileWriter.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
六、歷史記錄回顯
登錄后進入主界面或者進入歷史記錄界面會看到該賬號以前發(fā)送過的信息記錄
歷史記錄回顯：
package function;
import java.awt.Color;
import java.awt.Desktop;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
/**
*
* 該類實現(xiàn)歷史記錄回顯
*
* @author 360°順滑
*
* @date 2020/05/02
*
*/
public class RecordsEcho {
private String userName;
private JTextPane showPane;
public RecordsEcho(String userName, JTextPane showPane) {
this.userName = userName;
this.showPane = showPane;
}
// 將用戶的信息記錄回顯到展示面板
public void read() {
// 對應賬號的信息記錄文本
File file = new File("src/txt/" + userName + ".txt");
// 文件不存在就創(chuàng)建一個
if (!file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
FileReader fileReader = null;
BufferedReader bufferedReader = null;
try {
fileReader = new FileReader(file);
bufferedReader = new BufferedReader(fileReader);
// 正則表達式
Pattern pattern = Pattern.compile(".+[\\.].+");
String str = null;
while ((str = bufferedReader.readLine()) != null) {
Matcher matcher = pattern.matcher(str);
// 如果是文件或圖片
if (matcher.find()) {
// 獲得文件名
int index = str.lastIndexOf("\\");
String fileName = str.substring(index + 1);
// 圖片的情況
if (str.endsWith(".png") || str.endsWith(".jpg") || str.endsWith(".jpeg") || str.endsWith("gif")) {
Pattern pattern1 = Pattern.compile("[emoji_].+[\\.].+");
Matcher matcher1 = pattern1.matcher(fileName);
// 如果是表情包
if (matcher1.find()) {
writeEmoji(str);
} else {
writeImage(str, fileName);
}
} else {
// 文件的情況
writeFile(str, fileName);
}
} else {
// 如果是文本則直接寫入
writeText(str);
}
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
bufferedReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fileReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
// 把文本顯示在展示面板
public void writeText(String str) {
String s = "";
for (int i = 0; i < str.length(); i++) {
if (i != 0 && i % 30 == 0)
s += "\n";
s += str.charAt(i);
}
Document document = showPane.getDocument();
try {
document.insertString(document.getLength(), s + "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void writeEmoji(String path) {
// 獲取圖片
ImageIcon imageIcon = new ImageIcon(path);
// 獲取整個展示面板的內(nèi)容，方便圖片文件的插入
Document document = showPane.getDocument();
try {
// 插入圖片
showPane.insertIcon(imageIcon);
// 換行
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// 把圖片顯示在展示面板
public void writeImage(String path, String fileName) {
// 獲取圖片
ImageIcon imageIcon = new ImageIcon(path);
// 如果圖片比整個界面大則調(diào)整大小
int width, height;
if (imageIcon.getIconWidth() > 950 || imageIcon.getIconHeight() > 400) {
width = 600;
height = 250;
} else {
width = imageIcon.getIconWidth();
height = imageIcon.getIconHeight();
}
// 設置圖片大小
imageIcon.setImage(imageIcon.getImage().getScaledInstance(width, height, 0));
// 為圖片名稱添加按鈕，用于打開圖片
JButton button = new JButton(fileName);
button.setFont(new Font("宋體", Font.PLAIN, 20));
button.setBackground(Color.WHITE);
button.setBorderPainted(false);
button.setFocusPainted(false);
// 獲取整個展示面板的內(nèi)容，方便圖片文件的插入
Document document = showPane.getDocument();
try {
// 插入圖片
showPane.insertIcon(imageIcon);
// 換行
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
// 插入按鈕，也就是圖片名稱
showPane.insertComponent(button);
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 為按鈕添加點擊事件
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
try {
// 實現(xiàn)打開文件功能
File file = new File(path);
Desktop.getDesktop().open(file);
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
}
});
}
// 把文件顯示在展示面板中
public void writeFile(String path, String fileName) {
// 獲取固定文件圖標
Icon fileImage = new ImageIcon("src/pictures/document.png");
// 為名稱添加按鈕
JButton button = new JButton(fileName);
button.setFont(new Font("宋體", Font.PLAIN, 20));
button.setBackground(Color.WHITE);
button.setBorderPainted(false);
button.setFocusPainted(false);
// 獲取面板內(nèi)容
Document document = showPane.getDocument();
try {
showPane.insertIcon(fileImage);
showPane.insertComponent(button);
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
try {
// 實現(xiàn)打開文件功能
File file = new File(path);
Desktop.getDesktop().open(file);
} catch (IOException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
}
});
}
}
七、發(fā)送表情包
通過主界面表情包按鈕可以打開表情包窗口
點擊表情包，可以發(fā)送表情包
表情包界面
package frame;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
import function.SaveRecords;
/**
* 該類實現(xiàn)表情包窗體
*
* @author 360°順滑
*
* @date 2020/05/03
*
*/
public class EmojiFrame {
//展示面板
private JTextPane showPane;
//表情包按鈕
private JButton[] buttons = new JButton[55];
//表情包圖片
private ImageIcon[] icons = new ImageIcon[55];
//表情包對話框
private JDialog emojiJDialog;
//賬號
private String userName;
public EmojiFrame(JTextPane showPane,String userName) {
this.showPane = showPane;
this.userName = userName;
}
//表情包窗體
public void init() {
//用對話框來裝表情包
emojiJDialog = new JDialog();
emojiJDialog.setTitle("表情包");
emojiJDialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
emojiJDialog.setLayout(new GridLayout(6, 9));
emojiJDialog.setBounds(490, 263, 500, 400);
emojiJDialog.setBackground(Color.WHITE);
ImageIcon image = new ImageIcon("src/pictures/emoji.png");
emojiJDialog.setIconImage(image.getImage());
//表情包用按鈕來實現(xiàn)，主要是可以添加監(jiān)聽事件，點擊后可以實現(xiàn)發(fā)送
for (int i = 1; i <= 54; i++) {
String path = "src/pictures/emoji_" + i + ".png";
icons[i] = new ImageIcon(path);
buttons[i] = new JButton(icons[i]);
buttons[i].setBackground(Color.WHITE);
buttons[i].setBorder(null);
buttons[i].setBorderPainted(false);
buttons[i].setSize(20, 20);
buttons[i].setFocusPainted(false);
emojiJDialog.add(buttons[i]);
}
emojiJDialog.setVisible(true);
//添加監(jiān)聽事件
addListen();
}
//監(jiān)聽事件
public void addListen() {
//為每一個按鈕添加監(jiān)聽事件
for(int i=1;i<=54;i++) {
String path = "src/pictures/emoji_" + i + ".png";
buttons[i].addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
//獲取圖片
ImageIcon imageIcon = new ImageIcon(path);
// 獲取日期
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String input = dateFormat.format(date) + "\n";
Document document = showPane.getDocument();
try {
//寫入日期
document.insertString(document.getLength(), input, new SimpleAttributeSet());
//插入圖片
showPane.insertIcon(imageIcon);
//換行
document.insertString(document.getLength(), "\n\n", new SimpleAttributeSet());
} catch (BadLocationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
// 保存路徑到對應的賬號信息里，因為用的是絕對路徑，所以要根據(jù)實際來修改
String saveText = input + "D:\\eclipse jee\\FileTransfer\\" + path + "\n\n";
SaveRecords records = new SaveRecords(userName, saveText);
records.saveRecords();
emojiJDialog.setVisible(false);
}
});
}
}
}
發(fā)送表情包
//該方法寫在FileSend類
//發(fā)送表情包功能
public void sendEmoji(String path) {
// 獲取圖片
ImageIcon imageIcon = new ImageIcon(path);
// 獲取日期
Date date = new Date();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM--dd HH:mm:ss");
String input = dateFormat.format(date) + "\n";
// 獲取整個展示面板的內(nèi)容，方便圖片文件的插入
Document document = textShowPane.getDocument();
try {
// 插入日期
document.insertString(document.getLength(), input, new SimpleAttributeSet());
// 插入圖片
textShowPane.insertIcon(imageIcon);
document.insertString(document.getLength(), "\n\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 輸入框重新清空
textInputPane.setText("");
}
八、查看歷史
記錄通過主界面的歷史記錄按鈕可以打開歷史記錄窗口
歷史記錄界面
package frame;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Box;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import function.ClearRecords;
import function.FindRecords;
import function.RecordsEcho;
/**
* 該類實現(xiàn)歷史記錄窗口
*
* @author 360°順滑
*
* @date 2020/05/02
*
*/
public class HistoricRecordsFrame {
private String userName;
private JTextPane textShowPane;
private JFrame historicRecordsFrame;
private JButton findRecordsButton;
private JButton clearRecordsButton;
private JTextField searchTextField;
private JTextPane recordsShowPane;
private Box clearBox;
public HistoricRecordsFrame(String userName,JTextPane textShowPane) {
this.userName = userName;
this.textShowPane = textShowPane;
}
public void init() {
// 搜索文本框
searchTextField = new JTextField();
searchTextField.setFont(new Font("宋體", 0, 25));
// 查找記錄按鈕
findRecordsButton = new JButton("查找記錄");
findRecordsButton.setFont(new Font("行楷", Font.PLAIN, 20));
findRecordsButton.setBackground(Color.WHITE);
findRecordsButton.setBorderPainted(false);
findRecordsButton.setFocusPainted(false);
// 將搜索文本框和搜索按鈕放入Box容器
Box searchBox = Box.createHorizontalBox();
searchBox.setPreferredSize(new Dimension(900, 47));
searchBox.setBackground(Color.white);
searchBox.add(Box.createHorizontalStrut(35));
searchBox.add(searchTextField);
searchBox.add(Box.createHorizontalStrut(20));
searchBox.add(findRecordsButton);
searchBox.add(Box.createHorizontalStrut(25));
// 顯示文本窗格
recordsShowPane = new JTextPane();
recordsShowPane.setSize(900, 600);
recordsShowPane.setBackground(Color.WHITE);
recordsShowPane.setEditable(false);
recordsShowPane.setBorder(null);
recordsShowPane.setFont(new Font("宋體", 0, 25));
// 顯示文本窗格添加滾動條
JScrollPane scrollShowPane = new JScrollPane(recordsShowPane);
// 清空記錄按鈕
clearRecordsButton = new JButton("清空記錄");
clearRecordsButton.setFont(new Font("行楷", Font.PLAIN, 20));
clearRecordsButton.setBackground(Color.WHITE);
clearRecordsButton.setBorderPainted(false);
clearRecordsButton.setFocusable(false);
// Box容器并添加清空記錄按鈕
clearBox = Box.createHorizontalBox();
clearBox.setPreferredSize(new Dimension(1000, 60));
clearBox.setBackground(Color.white);
clearBox.add(Box.createVerticalStrut(5));
clearBox.add(clearRecordsButton);
clearBox.add(Box.createVerticalStrut(5));
// 設置主窗體
historicRecordsFrame = new JFrame("歷史記錄");
historicRecordsFrame.setSize(900, 700);
historicRecordsFrame.setLocationRelativeTo(null);
historicRecordsFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
// 改變窗體logo
ImageIcon image = new ImageIcon("src/pictures/historicRecordsLogo.png");
historicRecordsFrame.setIconImage(image.getImage());
historicRecordsFrame.setLayout(new BorderLayout());
// 添加窗體以上兩個主要容器
historicRecordsFrame.add(searchBox, BorderLayout.NORTH);
historicRecordsFrame.add(scrollShowPane, BorderLayout.CENTER);
historicRecordsFrame.add(clearBox, BorderLayout.SOUTH);
historicRecordsFrame.setVisible(true);
addListen();
RecordsEcho recordsEcho = new RecordsEcho(userName, recordsShowPane);
recordsEcho.read();
}
//添加按鈕監(jiān)聽事件
public void addListen() {
//清空歷史記錄監(jiān)聽事件
clearRecordsButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
new ClearRecords(userName,textShowPane,recordsShowPane).clear();
}
});
//查找記錄監(jiān)聽事件
findRecordsButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
FindRecords findRecords = new FindRecords(recordsShowPane,userName,searchTextField.getText());
findRecords.find();
}
});
}
}
歷史記錄回顯的代碼上面已經(jīng)給了，這里就不貼了。
還有一點功能值得一提，就是點擊歷史記錄中的圖片文件可以直接打開！
九、查找歷史記錄
輸入關鍵字點擊查找記錄按鈕可以實現(xiàn)歷史記錄的查找，找不到則顯示“無相關記錄！”
查找歷史記錄
package function;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
/**
* 該類實現(xiàn)查找歷史記錄
*
* 這段代碼說實話，寫得有點糟，本來后期要優(yōu)化，但是有點難搞，就這樣吧，將就著看！
*
*
* @author 360°順滑
*
* @date 2020/05/02
*/
public class FindRecords {
private JTextPane recordsShowPane;
private String userName;
private String keywords;
public FindRecords(JTextPane recordsShowPane, String userName, String keywords) {
this.recordsShowPane = recordsShowPane;
this.userName = userName;
this.keywords = keywords;
}
// 該方法包括查找文本、圖片、文件，因為要交叉使用，所以寫在一起了
public void find() {
// 如果查找的不為空
if (!(keywords.equals(""))) {
// 查找相關賬號歷史記錄
File file = new File("src/txt/" + userName + ".txt");
FileReader fileReader = null;
BufferedReader bufferedReader = null;
try {
fileReader = new FileReader(file);
bufferedReader = new BufferedReader(fileReader);
String str = "";
String str1 = null;
// 先把所有文本找到
while ((str1 = bufferedReader.readLine()) != null) {
if (str1.equals(""))
str += "\n";
else
str = str + str1 + "\n";
}
// 正則表達式匹配要找的內(nèi)容
Pattern pattern = Pattern.compile(".+\n.*" + keywords + ".*\n\n");
Matcher matcher = pattern.matcher(str);
// 標記有沒有找到
boolean isExist = false;
// 標記是否第一次找到
boolean oneFind = false;
// 如果找到了
while (matcher.find()) {
isExist = true;
// 正則表達式匹配是否為文件圖片路徑
Pattern pattern1 = Pattern.compile(".+[\\.].+");
Matcher matcher1 = pattern1.matcher(matcher.group());
// 如果是文件或者圖片
if (matcher1.find()) {
// 截取日期
int index3 = matcher.group().indexOf("\n");
String date = matcher.group().substring(0, index3);
// 獲得文件名
int index1 = matcher.group().lastIndexOf("\\");
int index2 = matcher.group().lastIndexOf("\n\n");
String fileName = matcher.group().substring(index1 + 1, index2);
// 圖片的情況
if (fileName.endsWith(".png") || fileName.endsWith(".jpg") || fileName.endsWith(".jpeg")
|| fileName.endsWith("gif")) {
Pattern pattern2 = Pattern.compile("[emoji_].+[\\.].+");
Matcher matcher2 = pattern2.matcher(fileName);
// 如果是表情包則不需要添加名稱
if (matcher2.find()) {
if (!oneFind) {
// 寫入日期
recordsShowPane.setText(date + "\n");
// 插入表情包和名稱
RecordsEcho echo = new RecordsEcho(fileName, recordsShowPane);
echo.writeEmoji(matcher1.group());
Document document = recordsShowPane.getDocument();
try {
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
oneFind = true;
} else { // 不是第一次就直接寫入
Document document = recordsShowPane.getDocument();
try {
document.insertString(document.getLength(), date + "\n",
new SimpleAttributeSet());
RecordsEcho echo = new RecordsEcho(fileName, recordsShowPane);
echo.writeEmoji(matcher1.group());
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
// 不是表情包的圖片
else {
// 如果是第一次找到，要先清空再寫入
if (!oneFind) {
// 寫入日期
recordsShowPane.setText(date + "\n");
// 插入圖片和名稱
RecordsEcho echo = new RecordsEcho(fileName, recordsShowPane);
echo.writeImage(matcher1.group(), fileName);
// 換行
Document document = recordsShowPane.getDocument();
try {
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 標記不是第一次了
oneFind = true;
} else { // 不是第一次找到就直接寫入
Document document = recordsShowPane.getDocument();
try {
document.insertString(document.getLength(), date + "\n",
new SimpleAttributeSet());
RecordsEcho echo = new RecordsEcho(fileName, recordsShowPane);
echo.writeImage(matcher1.group(), fileName);
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
} else { // 文件的情況
// 第一次找到
if (!oneFind) {
// 清空并寫入日期
recordsShowPane.setText(date + "\n");
// 插入文件圖片以及名稱
RecordsEcho echo = new RecordsEcho(fileName, recordsShowPane);
echo.writeFile(matcher1.group(), fileName);
// 換行
Document document = recordsShowPane.getDocument();
try {
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
oneFind = true;
} else { // 不是第一次找到
Document document = recordsShowPane.getDocument();
try {
document.insertString(document.getLength(), date + "\n", new SimpleAttributeSet());
RecordsEcho echo = new RecordsEcho(fileName, recordsShowPane);
echo.writeFile(matcher1.group(), fileName);
document.insertString(document.getLength(), "\n", new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
} else { // 查找的是文本
String s = "";
for(int i = 0; i < matcher.group().length(); i++) {
//因為查找到的字符串包含日期，所以要從20開始
if(i>20 && (i-20) % 30 == 0)
s += "\n";
s += matcher.group().charAt(i);
}
if (!oneFind) {
recordsShowPane.setText(s);
oneFind = true;
} else {
Document document = recordsShowPane.getDocument();
try {
document.insertString(document.getLength(), s, new SimpleAttributeSet());
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
// 找不到的情況
if (!isExist)
recordsShowPane.setText("\n\n\n 無相關記錄！");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
bufferedReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
fileReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
else { // 查找為空的情況
recordsShowPane.setText("\n\n\n 無相關記錄！");
}
}
}
十、清空歷史記
錄點擊清空歷史記錄，所有信息都會被刪除，包括本地信息。
清空歷史信息
package function;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import javax.swing.JTextPane;
/**
* 該類實現(xiàn)清空歷史記錄的功能
*
* @author 360°順滑
*
* @date 2020/05/03
*
*/
public class ClearRecords {
private JTextPane textShowPane;
private JTextPane recordsShowPane;
private String userName;
public ClearRecords(String userName,JTextPane textShowPane,JTextPane recordsShowPane) {
this.userName = userName;
this.textShowPane = textShowPane;
this.recordsShowPane = recordsShowPane;
}
//把展示面板、輸入面板、本地信息全部清空
public void clear() {
textShowPane.setText("");
recordsShowPane.setText("");
String path = "src/txt/" + userName + ".txt";
File file = new File(path);
FileWriter fileWriter = null;
BufferedWriter bufferedWriter = null;
try {
fileWriter = new FileWriter(file);
bufferedWriter = new BufferedWriter(fileWriter);
bufferedWriter.write("");;
bufferedWriter.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (bufferedWriter != null) {
try {
bufferedWriter.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if (fileWriter != null) {
try {
fileWriter.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
}
十一、拖拽輸入文本、圖片和文件
通過拖拽將文本信息（復制粘貼）、圖片文件路徑輸入到輸入框中，發(fā)送后可以顯示圖片文件。同時，拖拽可以同時拖多個文件。
拖拽輸入文本文件
package function;
import java.awt.datatransfer.DataFlavor;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DropTargetDragEvent;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetEvent;
import java.awt.dnd.DropTargetListener;
import java.io.File;
import java.util.List;
import javax.swing.JTextPane;
import javax.swing.text.Document;
import javax.swing.text.SimpleAttributeSet;
/**
* 該類實現(xiàn)拖拽文件，復制粘貼功能
*
* 由于該功能第一次實現(xiàn)，所以部分代碼是搬磚過來的
*
* @author 360°順滑
*
* @date 2020/05/03
*/
public class DropTargetFile implements DropTargetListener {
/** 用于顯示拖拽數(shù)據(jù)的面板 */
private JTextPane inputPane;
public DropTargetFile(JTextPane inputPane) {
this.inputPane = inputPane;
}
public void dragEnter(DropTargetDragEvent dtde) {
}
public void dragOver(DropTargetDragEvent dtde) {
}
public void dragExit(DropTargetEvent dte) {
}
public void dropActionChanged(DropTargetDragEvent dtde) {
}
public void drop(DropTargetDropEvent dtde) {
boolean isAccept = false;
try {
/*
* 判斷拖拽目標是否支持文件列表數(shù)據(jù)（即拖拽的是否是文件或文件夾, 支持同時拖拽多個）
*/
if (dtde.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
// 接收拖拽目標數(shù)據(jù)
dtde.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
isAccept = true;
// 以文件集合的形式獲取數(shù)據(jù)
@SuppressWarnings("unchecked")
List<File> files = (List<File>) dtde.getTransferable().getTransferData(DataFlavor.javaFileListFlavor);
// 把文件路徑輸出到文本區(qū)域
if (files != null && files.size() > 0) {
StringBuilder filePaths = new StringBuilder();
for (File file : files) {
filePaths.append(file.getAbsolutePath() + "\n");
}
Document document = inputPane.getDocument();
document.insertString(document.getLength(), filePaths.toString(), new SimpleAttributeSet());
}
}
} catch (Exception e) {
e.printStackTrace();
}
// 如果此次拖拽的數(shù)據(jù)是被接受的, 則必須設置拖拽完成（否則可能會看到拖拽目標返回原位置, 造成視覺上以為是不支持拖拽的錯誤效果）
if (isAccept) {
dtde.dropComplete(true);
}
}
}
功能基本就是這樣了，還是有許多bug，但改不動了，后續(xù)有時間有機會再改進吧?。?！
到此這篇關于Java 文件傳輸助手的實現(xiàn)(單機版)的文章就介紹到這了,更多相關Java 文件傳輸助手內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關文章希望大家以后多多支持腳本之家！
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