写在前面：
1、源代码来源于博客http://blog.sina.com.cn/u/2904067371 ，在此基础上对于前端代码稍作更改，把传过来的数据解析并传入表格
2、json解析，用eval()
3、写入表格 table.rows[i].cells[j].innerHTML
4、导入java中json应用的jar包(如果没有导入jar包或者包不全就不会有import net.sf.json.JSONArray;import net.sf.json.JSONObject;
JSONArray、JSONObject会报错。
)
5、测试字符串如下：{"person":[{"id":3,"name":"ss","pwd":"1234"},{"id":23,"name":"ws","pwd":"124"}]}
json jar包百度云：
http://pan.baidu.com/s/1i3GNJ9N
工程截图：
效果截图：
代码：
Person.java
package com.orilore.gb; public class Person { public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPwd() { return pwd; } public void setPwd(String pwd) { this.pwd = pwd; } private int id; private String name; private String pwd; }
servlet json.java
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/xml;character=utf-8"); response.setHeader("Cache-Control", "no-cache"); try{ Person p =new Person(); p.setName("ss"); p.setId(3); p.setPwd("1234"); Person p1 =new Person(); p1.setName("ws"); p1.setId(23); p1.setPwd("124"); List<Person> list =new ArrayList<Person>(); list.add(p); list.add(p1); try{ JSONArray json =JSONArray.fromObject(list); JSONObject jb =new JSONObject(); jb.put("person", json); response.getWriter().write(jb.toString()); }catch(IOException e){ e.printStackTrace(); } }catch(Exception e){ e.printStackTrace(); } }
前端页面代码
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title></title>
<link rel="stylesheet" href="">
</head>
<body>
<input type="button" onclick="validate()" value="dsfdsafa" >
<div id="div"></div>
<table border="1" style="300px;height:200px;" id="table">
<tr id="tr" border="1"><td>1</td>
<td>1</td>
<td>1</td></tr>
<tr border="1"><td>1</td>
<td>1</td>
<td>1</td></tr></table>
<script type="text/javascript">
function validate(){
var div=document.getElementById("div");
var xmlhttp;
var table=document.getElementById('table');
if(window.XMLHttpRequest){
xmlhttp=new XMLHttpRequest();
}else{
xmlhttp=new ActiveObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200){
var x=xmlhttp.responseText
div.innerHTML=x;
var sd=eval("(" + x + ")");
var arr=new Array();
var i=0;
for(var a in sd.person){//获取有几个person
var count=0;//计算person属性值的个数
i++;
for(var item in sd.person[a])
{ count++;
var p=sd.person[a][item];//得到属性值的内容
table.rows[i-1].cells[count-1].innerHTML=p;//把内容填向table表格
}
}
}
}
var url ="json";
xmlhttp.open("POST",url,true);
xmlhttp.send();
}
</script>
</body>
</html>