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本文實例為大家分享了新聞列表分頁查詢的java代碼，供大家參考，具體內容如下

package com.ibeifeng.test;

//創建新聞測試類

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條數據到集合中

    //int pageIndex=10;

  int iTitleIndex = list.size();//獲取集合下表標

  int iTitlePages = iTitleIndex / 10

      + (iTitleIndex % 10 == 0 ? 0 : 1);//獲取頁數的總數

  int ipage = 4;//開始的頁數



  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;

    }

  }

  //創建一個新的集合（大小每個頁面顯示的新聞總數）將107條數據分別存儲到其中

  List<newTest> listPage = new ArrayList<newTest>(10);

  int ipa = 10;//獲取循環體的循環次數//最后一頁只有七條數據

  if (ipage == iTitlePages) { //當當前頁數為最后一頁時，剩余幾行則循環體之執行剩余的行的數次，

    ipa = list.size() - (iTitlePages - 1) * 10;

  }

  for (int i = 0; i < ipa; i++) { //i=0;獲取前十個數據第一次循環時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>

  <%

    }

  %>

     

  

  <%

    if (!bLast) {

  %>

  <a href="test.jsp?page=<%=ipage + 1%>&totopage=11">下一頁</a>

  <%

    }

  %>第<%=ipage%>頁   共<%=iTitlePages%>頁

</body>

</html>