淺談struts1 & jquery form 文件異步上傳

更新時間：2017年05月25日 08:30:36 投稿：jingxian

下面小編就為大家?guī)硪黄獪\談struts1 & jquery form 文件異步上傳。小編覺得挺不錯的，現(xiàn)在就分享給大家，也給大家做個參考。一起跟隨小編過來看看吧

1.概述

還在用struts1？是的，在地球的沒寫地方，落后的生產(chǎn)方式還在運轉(zhuǎn)(老項目).

從繼承org.apache.struts.action.Action，繼承org.apache.struts.action.ActionForm開始吧

2. 代碼

2.1 html頁面

<html>
<head>
<title>網(wǎng)頁上傳</title>
</head>
<body>
  <center>
    <h1>本地文件網(wǎng)頁上傳</h1>
    <hr>

  </center>

  <h1>文件信息列表</h1>
  <hr>
  <form id="myform" method="post" enctype="multipart/form-data">
    <table width="0" border="0" cellspacing="10" cellpadding="0">
    
      <tr>
        <td>選擇文件：</td>
        <td><input type="file" name="uploadFile" /></td>
      </tr>
      <tr>
        <td>標(biāo)題：</td>
        <td><input type="text" name="filetitle" /></td>
      </tr>

      <tr>
        <td colspan="2">
          <input type="button" id="mysubmit" value="確認(rèn)上傳"/>
        </td>
      </tr>

    </table>
  </form>
  <script src="script/jquery.js"></script>
  <script src="script/jquery.form.js"></script>
  <script src="script/_fileUpload.js"></script>
</body>
</html>

2.2 _fileUpload.js

/**
 *_fileUpload.js 
 *
 * 
 */
window.onload = function() {
  
  
  $("#mysubmit").bind("click", function(){
    $("#myform").ajaxSubmit({
      url: "myUpload.do",
      type: "post",
      success: function(data){
        console.log(11111111);
        console.log(data);
      },
      error: function(responseError){
        console.log(22222222222);
        console.log(responseError);
      }
      
    });
  });
}

2.3 MyUploadAction.java(繼承自Action)

package com.rocky.console.action;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;

import com.rocky.console.form.MyUploadForm;
import com.rocky.console.service.ResponseUtil;


public class MyUploadAction extends Action {

  
  public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request,
      HttpServletResponse response) throws Exception{
    
    MyUploadForm myUploadForm = (MyUploadForm) form;
    FormFile uploadFile = myUploadForm.getUploadFile();
    String filetitle = myUploadForm.getFiletitle();
    System.out.println("111111"+filetitle);
    
    int fileSize = uploadFile.getFileSize();
    InputStream inputStream = uploadFile.getInputStream();
    System.out.println("fileSize::::::::"+fileSize);
    String path = "x:";
    String filename = path + File.separator + uploadFile.getFileName();
    FileOutputStream fos = new FileOutputStream(filename);
    byte[] b = new byte[1024];
    int len = -1;
    while((len = inputStream.read(b))!=-1){
      fos.write(b, 0, len);
    }
    fos.close();
    String result = "success";
    ResponseUtil.write(response, result, null);
    return null;
    
  }
}

2.4 MyUploadForm.java( 繼承自ActionForm)

package com.rocky.console.form;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.upload.FormFile;

public class MyUploadForm extends ActionForm {

  /**
   * 
   */
  private static final long serialVersionUID = 6650496540449458586L;
  
  private FormFile uploadFile = null;
  
  private String filetitle;
  
  public String getFiletitle() {
    return filetitle;
  }

  public void setFiletitle(String filetitle) {
    this.filetitle = filetitle;
  }

  public ActionErrors validate(ActionMapping mapping,
      HttpServletRequest request) {
    return null;
  }
  
  public void reset(ActionMapping mapping, HttpServletRequest request) {
  }

  public FormFile getUploadFile() {
    return uploadFile;
  }

  public void setUploadFile(FormFile uploadFile) {
    this.uploadFile = uploadFile;
  }

}

2.5 struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "struts-config_1_2.dtd">

<struts-config>
  <data-sources />
  <form-beans>
    <form-bean name="myUploadForm" type="com.rocky.console.form.MyUploadForm" />
  </form-beans>
  <global-exceptions />
  <global-forwards />
  <action-mappings>
    <!-- rocky myupload -->
    <action path="/myUpload" attribute="myUploadForm" name="myUploadForm" type="com.rocky.console.action.MyUploadAction" />
  </action-mappings>
  <message-resources parameter="ApplicationResources" />
</struts-config>

2.6 說明

2.6.1 jquery.form.js 網(wǎng)上可以下載

使用var formData = new FormData(), 然后formData.append("myfile", document.getElementById("myfile").files[0]);form.append...

當(dāng)form表單field較多時寫很多 append很麻煩，顯然 ajaxSubmit方便很多

2.6.2 前端過來的數(shù)據(jù) 通過 ActionForm 直接封裝到其子類(MyActionForm)對象中 , 用FormFile接收file文件用String等接收其他類型數(shù)據(jù)

當(dāng)然都是根據(jù)HTML 標(biāo)簽的name屬性一一對應(yīng) 來注入的

2.6.3 ActionForm是怎么和自定義實現(xiàn)的bean(MyUploadForm) 對上的？

在struts-config.xml中form-bean設(shè)置自己的那個bean，通過<action path="/myUpload" attribute="myUploadForm" name="myUploadForm"

來完成這種映射

以上這篇淺談struts1 & jquery form 文件異步上傳就是小編分享給大家的全部內(nèi)容了，希望能給大家一個參考，也希望大家多多支持腳本之家。

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