查询界面，通过姓名和车号进行查询，然后将查询结果提交给servlet：
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body background="images/bottom.png">
<br><br><br><br><br>
<form action="<%=request.getContextPath()%>/SessionServrlet" method="get">
<table boder="1" align="center">
<tr>
<td align="right"><span style="color:white">姓名：</span></td>
<td><input type="text" name="name" size="30" /></td>
</tr>
<tr>
<td align="right"><span style="color:white">车号：</span></td>
<td><input type="text" name="carNum" size="30" /></td>
</tr>
<tr>
<td><input type="hidden" name="URL" value="beginQueryDynamicMonitor.jsp"></td>
</tr>
<tr align="right">
<td colspan="2">
<input type="submit" name="submit" value="查询">
<input type="reset" name="reset" value="重置">
</td>
</tr>
</table>
</form>
</body>
</html>
在servlet将从页面获取到的姓名和车号存到session中（因为request有效期只是一次请求的全过程，翻页的时候就会失效，所以要将其存到session中）
package shouqisystem.user;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/**
* Servlet implementation class ServiceServlet
*/
public class ServiceServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public ServiceServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
String name=new String(request.getParameter("name").getBytes("iso-8859-1"),"utf-8");
String carNum=new String(request.getParameter("carNum").getBytes("iso-8859-1"),"utf-8");
String s1="beginQueryService.jsp";
HttpSession session = request.getSession();
session.setAttribute("name", name);
session.setAttribute("carNum", carNum);
response.setContentType("text/html;charset=UTF-8");
String s = response.encodeURL(s1);
RequestDispatcher disp=null;
disp=request.getRequestDispatcher(s);
disp.forward(request, response);
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}
}
Pages.java控制分页
package shouqisystem.user;
import java.sql.ResultSet;
import javax.servlet.http.HttpServletRequest;
public class Pages {
ResultSet CountTopicrs=null;//记录总数结果集
ResultSet Pagirs=null;//查询结果集
public int intCountTopic=0;//记录总数
public int intPageSize;//每页显示几条记录
public int intPageCount;//总页数
public int intPage=1;//当前页数
public String nowPage;
public String HttpFile;
UserInfo db;
public Pages(){
intPageSize=2;
db=new UserInfo();
}
public void querySql(ResultSet CountTopicrs,ResultSet Pagirs,HttpServletRequest request)throws Exception{
HttpFile=request.getRequestURI();
nowPage=request.getParameter("pages");
if(nowPage==null){
intPage=1;
}else{
intPage=Integer.parseInt(nowPage);
if(intPage<1)
intPage=1;
}
//CountTopicrs=db.queryICcardDataSum(name, carNum);
if(CountTopicrs.next()){
intCountTopic=CountTopicrs.getInt(1);
}
intPageCount=(intCountTopic+intPageSize-1)/intPageSize;
if(intPage>intPageCount){
intPage=intPageCount;
}
CountTopicrs.close();
//db.close_all();
//Pagirs=db.queryICcardData(name, carNum);
//return Pagirs;
}
public int getCountTopic(){
return intCountTopic;
}
public int getPageCount(){
return intPageCount;
}
public int getIntPage(){
return intPage;
}
public String PageFooter(){
String str="";
int next,prev;
prev=intPage-1;
next=intPage+1;
System.out.println();
str+="<font color=red>查询到"+getCountTopic()+"条记录</font>"+" <font color=red> 共"+getPageCount()+"页</font>";
str+="<font color=red>第"+getIntPage()+"页</font>";
if(intPage>1)
str+="<font color=red><a href=" + HttpFile + "?pages=1"+">首页</a></font>";
else
str+="<font color=red>首页";
if(intPage>1)
str +="<font color=red><a href=" + HttpFile + "?pages="+prev+">上一页</a></font>";
else
str +="<font color=red>上一页</font>";
if(intPage<intPageCount)
str +="<font color=red><a href=" + HttpFile + "?pages="+next+">下一页</a></font>";
else
str +="<font color=red>下一页</font>";
if(intPageCount>1&&intPage !=intPageCount)
str +="<font color=red><a href=" + HttpFile + "?pages="+intPageCount+">尾页</a></font>";
else
str +="<font color=red>尾页</font>";
return str;
}
public void close_all()throws Exception{
db.close_all();
}
}
查询结果页面：
<%@page import="java.sql.ResultSet"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@ page import="java.io.*,java.util.*,java.sql.*,shouqisystem.user.*" %>
<jsp:useBean id="userinfo" scope="request" class="shouqisystem.user.UserInfo"/>
<jsp:useBean id="pages" scope="page" class="shouqisystem.user.Pages"/>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body background="images/bottom.png">
<center>
<form action="" method="GET" name="form">
<table boder="2" cellpadding="5" cellspacing="5">
<tr>
<td><b><span style="color:white">选择</span></b></td>
<td><b><span style="color:white">姓名</span></b></td>
<td><b><span style="color:white">车牌号</span></b></td>
<td><b><span style="color:white">超速日期</span></b></td>
<td><b><span style="color:white">超速四级次数</span></b></td>
<td><b><span style="color:white">出外埠日期</span></b></td>
<td><b><span style="color:white">去向</span></b></td>
<td><b><span style="color:white">疲劳驾驶日期</span></b></td>
<td><b><span style="color:white">级别</span></b></td>
<td><b><span style="color:white">次数</span></b></td>
</tr>
<%
String name=(String)session.getAttribute("name");
String carNum=(String)session.getAttribute("carNum");
ResultSet CountTopicrs=userinfo.queryDynamicMonitorSum(name, carNum);
ResultSet rs=userinfo.queryDynamicMonitor(name, carNum);
pages.querySql(CountTopicrs,rs,request);
String footer=pages.PageFooter();
if(pages.intPageCount>0){
int i=0;
while(rs.next())
{
i++;
if(i>((pages.intPage-1)*pages.intPageSize)&&(i<=pages.intPage*pages.intPageSize))
{
%>
<tr>
<td><input type="checkbox" name="pkey" size="5" value="<%=String.valueOf(rs.getInt("ID")) %>"/></td>
<td><span style="color:white"><%=rs.getString("name") %></span></td>
<td><span style="color:white"><%=rs.getString("carNum") %></span></td>
<td><span style="color:white"><%=rs.getString("speedTime") %></span></td>
<td><span style="color:white"><%=rs.getString("speedFourLevelTimes") %></span></td>
<td><span style="color:white"><%=rs.getString("outGoingTime") %></span></td>
<td><span style="color:white"><%=rs.getString("destination") %></span></td>
<td><span style="color:white"><%=rs.getString("fatigueDrivingTime") %></span></td>
<td><span style="color:white"><%=rs.getString("degree") %></span></td>
<td><span style="color:white"><%=rs.getString("times") %></span></td>
</tr>
<%
}
}
}
out.println("<tr><td colspan=2>"+footer+"</td></tr>");
rs.close();
pages.close_all();
%>
<tr align="right">
<td colspan="2">
<input type="submit" name="revise" value="修改" onclick="form.action=‘reviseDynamicMonitor.jsp‘;form.submit();">
<input type="submit" name="delete" value="删除" onclick="form.action=‘deleteDynamicMonitor.jsp‘;form.submit();">
</td>
</tr>
</table><br><br>
</form>
</center>
</body>
</html>
时间： 2024-08-27 04:51:29