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json Servlet JSP .net HTML

转：
http://www.blogjava.net/Reg/archive/2009/11/15/302383.html

DemoServlet

package com.common;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class DemoTest extends HttpServlet {

private IDemo demo=new Demo();

public void doGet(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {

doPost(request, response);
}

public void doPost(HttpServletRequest request, HttpServletResponse response)
   throws ServletException, IOException {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
int id=Integer.parseInt(request.getParameter("id"));
List list=demo.query(id);
String json="";
for (int i = 0; i < list.size(); i++) {
   json+=list.get(i)+",";
}
System.out.println(json);
out.write(json);
out.flush();
out.close();
}

}

Demo.jsp
<script type="text/javascript">
$(document).ready(function(){
var s1Obj = document.getElementById("s1");
var s2Obj = document.getElementById("s2");
var tempValue = s1Obj.value;

$.get('/Demo/DemoTest',{id:tempValue},function(x){
   var temp=x.split(',');
   for(var i=0;i<temp.length-1;i++){
    var tempOption = document.createElement("option");
    tempOption.value = temp[i];
    tempOption.innerHTML = temp[i];
    s2Obj.appendChild(tempOption);
   }
});
});

function leve(){
var s1Obj = document.getElementById("s1");
var s2Obj = document.getElementById("s2");
var tempValue = s1Obj.value;
s2Obj.innerHTML = '';
$.get('/Demo/DemoTest',{id:tempValue},function(x){
   var temp=x.split(',');
   for(var i=0;i<temp.length-1;i++){
    var tempOption = document.createElement("option");
    tempOption.value = temp[i];
    tempOption.innerHTML = temp[i];
    s2Obj.appendChild(tempOption);

   }
});

}

</script>
<body>
<select name="s1" id="s1" onchange="leve();">
   <option value='1'>
    市场部
   </option>
   <option value='2'>
    财务部
   </option>
   <option value='3'>
    劳务部
   </option>
</select>
<select name="s2" id="s2">
</select>
</body>

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jfinal整合shiro权限控制(从数据库读取配 ... | hibernate检索策略(连接查询)

2011-03-09 17:58
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