package com.ibeifeng.test;
//創(chuàng)建新聞測試類
public class newTest {
private long id;
private String title;
private String content;
private String author;
 
public newTest() {
  super();
}
 
public newTest(long id, String title, String content, String author) {
  this.id = id;
  this.title = title;
  this.content = content;
  this.author = author;
}
 
public long getId() {
  return id;
}
 
public void setId(long id) {
  this.id = id;
}
 
public String getTitle() {
  return title;
}
 
public void setTitle(String title) {
  this.title = title;
}
 
public String getContent() {
  return content;
}
 
public void setContent(String content) {
  this.content = content;
}
 
public String getAuthor() {
  return author;
}
 
public void setAuthor(String author) {
  this.author = author;
}
 
@Override
public String toString() {
  return "newTest [id=" + id + ", title=" + title + ", content=" + content
      + ", author=" + author + "]";
}
 
 
}
2.開始查詢
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ page import="com.ibeifeng.test.newTest"%>
<%
  String path = request.getContextPath();
  String basePath = request.getScheme() + "://"
      + request.getServerName() + ":" + request.getServerPort()
      + path + "/";
%>
<%
  List<newTest> list = new ArrayList<newTest>(107);//設定新聞行數(shù)為107行
  for (int i = 1; i <= 107; i++) {//list中添加新聞
    newTest news = new newTest(0L + i, i + "里約奧運", "馬龍獲得金牌-世界乒壇第五位男子“大滿貫”得主", "福音");
 
    list.add(news);
  }//end of for...添加107條數(shù)據(jù)到集合中
    //int pageIndex=10;
  int iTitleIndex = list.size();//獲取集合下表標
  int iTitlePages = iTitleIndex / 10
      + (iTitleIndex % 10 == 0 ? 0 : 1);//獲取頁數(shù)的總數(shù)
  int ipage = 4;//開始的頁數(shù)
   
  String str = request.getParameter("page");
  if (str != null && !str.trim().equals("")) {
    int newPage = Integer.valueOf(str);
 
    if (newPage < 1) {
      ipage = 1;
    } else if (newPage > iTitlePages) {
      ipage = iTitlePages;
    } else {
      ipage = newPage;
    }
  }
  //創(chuàng)建一個新的集合（大小每個頁面顯示的新聞總數(shù)） 將107條數(shù)據(jù)分別存儲到其中 
  List<newTest> listPage = new ArrayList<newTest>(10);
  int ipa = 10;//獲取循環(huán)體的循環(huán)次數(shù)//最后一頁只有七條數(shù)據(jù)
  if (ipage == iTitlePages) { //當當前頁數(shù)為最后一頁時，剩余幾行則循環(huán)體之執(zhí)行剩余的行的數(shù)次，
    ipa = list.size() - (iTitlePages - 1) * 10;
  }
  for (int i = 0; i < ipa; i++) { //i=0;獲取前十個數(shù)據(jù) 第一次循環(huán)時ipage=4
    newTest arr = list.get(i + (ipage - 1) * 10);
    listPage.add(arr);
  }
%>
<html>
<body>
  <table>
    <tr>
      <th>標題</th>
      <td>作者</td>
      <td>摘要</td>
    </tr>
    <%
      for (int i = 0; i < listPage.size(); i++) { //java代碼需要用<% %》保護起來否則會被當做web語句執(zhí)行
        newTest temp = listPage.get(i);
    %>
    <tr>
      <td><%=temp.getTitle()%></td>
      <td><%=temp.getAuthor()%></td>
      <td><%=temp.getContent()%></td>
    </tr>
    <%
      }//end of for...
    %>
  </table>
 
  <%
    boolean bFirst = ipage == 1;
    boolean bLast = ipage == iTitlePages ;
  %>
 
  <%
    if (!bFirst) {
  %>
  <a href="test.jsp?page=<%=ipage - 1%>&totopage=11">上一頁</a>
  <%
    }
  %>
  &nbsp;&nbsp;&nbsp;
  <!-- 當跳轉到第一頁時不再顯示“上一頁”提交對話框，下同 -->
  <%
    if (!bLast) {
  %>
  <a href="test.jsp?page=<%=ipage + 1%>&totopage=11">下一頁</a>
  <%
    }
  %>第<%=ipage%>頁&nbsp;&nbsp;&nbsp;共<%=iTitlePages%>頁
</body>
</html>

以上就是本文的全部內(nèi)容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。

您可能感興趣的文章: