package com.neusoft.servlet;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.neusoft.bean.Message;
/**
* 列表页面初始化控制
* @author Administrator
*
*/
public class ListServlet extends HttpServlet{
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
this.doPost(req, resp);
}
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
try {
req.setCharacterEncoding("UTF-8");
String command=req.getParameter("command");
String description=req.getParameter("description");
System.out.println(command);
System.out.println(description);
req.setAttribute("command", command);
req.setAttribute("description", description);
Class.forName("com.mysql.jdbc.Driver");
Connection conn=DriverManager.getConnection("jdbc:mysql://127.0.0.1:3306/micro_message1","root","root");
StringBuilder sql=new StringBuilder("select ID,COMMAND,DESCRIPTION,CONTENT from message where 1=1 ");
List<String> paramList=new ArrayList<String>();
if(command !=null && !"".equals(command.trim()) ){
sql.append("and COMMAND=? ");
paramList.add(command);
}
if(description !=null && !"".equals(description.trim()) ){
sql.append("and DESCRIPTION like '%'?'%'");
paramList.add(description);
}
PreparedStatement statement=conn.prepareStatement(sql.toString());
for (int i = 0; i < paramList.size(); i++) {
statement.setString(i+1, paramList.get(i));
}
System.out.println(sql);
ResultSet rs=statement.executeQuery();
List<Message> messageList=new ArrayList<Message>();
while(rs.next()){
Message message=new Message();
messageList.add(message);
message.setId(rs.getString("ID"));
message.setCommand(rs.getString("COMMAND"));
message.setDescription(rs.getString("DESCRIPTION"));
message.setContent(rs.getString("CONTENT"));
}
req.setAttribute("messageList", messageList);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
req.getRequestDispatcher("/WEB-INF/jsp/back/list.jsp").forward(req, resp);
}
}
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible"content="IE=9; IE=8; IE=7; IE=EDGE" />
<title>内容列表页面</title>
<link href="<%=basePath %>resources/css/all.css" rel="stylesheet" type="text/css" />
</head>
<body style="background: #e1e9eb;">
<form action="<%=basePath %>List.action" id="mainForm" method="post">
<div class="right">
<div class="current">当前位置:<a href="javascript:void(0)" style="color:#6E6E6E;">内容管理</a> > 内容列表</div>
<div class="rightCont">
<p class="g_title fix">内容列表 <a class="btn03" href="#">新 增</a> <a class="btn03" href="#">删 除</a></p>
<table class="tab1">
<tbody>
<tr>
<td width="90" align="right">指令名称:</td>
<td>
<input name="command" type="text" class="allInput" value="${command }"/>
</td>
<td width="90" align="right">描述:</td>
<td>
<input name="description" type="text" class="allInput" value="${description }"/>
</td>
<td width="85" align="right"><input type="submit" class="tabSub" value="查 询" /></td>
</tr>
</tbody>
</table>
<div class="zixun fix">
<table class="tab2" width="100%">
<tbody>
<tr>
<th><input type="checkbox" id="all" onclick=""/></th>
<th>序号</th>
<th>指令名称</th>
<th>描述</th>
<th>操作</th>
</tr>
<c:forEach items="${messageList }" var="message" varStatus="status">
<tr <c:if test="${status.index%2 !=0 }">style="background-color:#ECF6EE;"</c:if>>
<td><input type="checkbox" /></td>
<td>${status.index+1 }</td>
<td>${message.command }</td>
<td>${message.description }</td>
<td>
<a href="#">修改</a>
<a href="#">删除</a>
</td>
</tr>
</c:forEach>
</tbody>
</table>
<div class='page fix'>
共 <b>4</b> 条
<a href='###' class='first'>首页</a>
<a href='###' class='pre'>上一页</a>
当前第<span>1/1</span>页
<a href='###' class='next'>下一页</a>
<a href='###' class='last'>末页</a>
跳至 <input type='text' value='1' class='allInput w28' /> 页
<a href='###' class='go'>GO</a>
</div>
</div>
</div>
</div>
</form>
</body>
</html>