日期:2014-05-16 浏览次数:20488 次
前面的文章实现了分页显示,现在把分页显示的进行了整合,整合到了一个单独的页面中,加入了按关键字查询,具体实现如下:
用于实现分页和查询的页面文件:
split_page_plugin.jsp
<%@ page contentType="text/html" pageEncoding="GBK"%>
<%
int currentPage = 1 ; // 为当前所在的页,默认在第1页
int lineSize = 3 ; // 每次显示的记录数
long allRecorders = 0 ; // 表示全部的记录数
long pageSize = 1 ; // 表示全部的页数(尾页)
int lsData[] = {1,3,5,7,9,10,15,20,25,30,50,100} ;
String keyWord = request.getParameter("kw") ; // 接收查询关键字
String url = request.getParameter("url") ;
%>
<%
try{
currentPage = Integer.parseInt(request.getParameter("cp")) ;
} catch(Exception e) {}
try{
lineSize = Integer.parseInt(request.getParameter("ls")) ;
} catch(Exception e) {}
try{
allRecorders = Long.parseLong(request.getParameter("allRecorders")) ;
} catch(Exception e) {}
if(keyWord == null){
keyWord = "" ; // 如果模糊查询没有关键字,则表示查询全部
}
%>
<%
pageSize = (allRecorders + lineSize -1) / lineSize ;
if(pageSize == 0){
pageSize = 1 ;
}
%>
<script language="javascript">
function go(num){
document.getElementById("cp").value = num ;
document.spform.submit() ; // 表单提交
}
</script>
<form name="spform" action="<%=url%>" method="post">
输入查询关键字:<input type="text" name="kw" value="<%=keyWord%>">
<input type="submit" value="查询"><br>
<input type="button" value="首页" onclick="go(1)" <%=currentPage==1?"DISABLED":""%>>
<input type="button" value="上一页" onclick="go(<%=currentPage-1%>)" <%=currentPage==1?"DISABLED":""%>>
<input type="button" value="下一页" onclick="go(<%=currentPage+1%>)" <%=currentPage==pageSize?"DISABLED":""%>>
<input type="button" value="尾页" onclick="go(<%=pageSize%>)" <%=currentPage==pageSize?"DISABLED":""%>>
跳转到第<select name="selcp" onchange="go(this.value)">
<%
for(int x=1;x<=pageSize;x++){
%>
<option value="<%=x%>" <%=x==currentPage?"SELECTED":""%>><%=x%></option>
<%
}
%>
</select>页
每页显示
<select name="ls" onchange="go(1)">
<%
for(int x=0;x<lsData.length;x++){
%>
<option value="<%=lsData[x]%>" <%=lsData[x]==lineSize?"SELECTED":""%>><%=lsData[x]%></option>
<%
}
%>
</select>
条
<input type="hidden" name="cp" value="1">
</form>
emp_list_true.jsp进行数据库操作和显示的页面文件:
emp_list_true.jsp
<%@ page contentType="text/html" pageEncoding="GBK"%>
<%@ page import="java.sql.*" %>
<html>
<head><title>雇员列表显示</title>
<style type="text/css">
<!--
.STYLE6 {font-size: 12px}
.STYLE10 {font-size: 14px; font-weight: bold; }
-->
</style>
</head>
<script language="javascript">
function changeColor(obj,color){
obj.bgColor = color ;
}
</script>
<body>
<%!
public static final String URL = "emp_list_true.jsp" ;
%>
<%!
public static final String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;
public static final String DBURL = "jdbc:oracle:thin:@localhost:1521:ORACLE" ;
public static final String DBUSER = "scott" ;
public static final String DBPASSWORD = "tiger" ;