一：
二：实现
1.导入jar，创建hander方法
@ResponseBody
@RequestMapping("/testjson")
public Collection<Employee> testjson(){
return employeeDao.getAll();
}2.测试页面
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>Insert title here</title>
<script type="text/javascript" src="js/jquery-1.11.1.min.js"></script>
<script type="text/javascript">
$(function(){
$("#testjson").click(function(){
var url=this.href;
var args={};
$.post(url,args,function(data){
for(var i=0;i<data.length;i++){
var id=data[i].id;
var lastName=data[i].lastName;
alert(id+"="+lastName);
}
});
return false;
});
});
</script>
</head>
<body>
<a href="emp"> get All</a>
<br>
<a href="testjson" id="testjson"> testjson</a>
<form action="testConversionService" method="get">
<input type="text" name="employee">
<input type="submit" value="submit">
</form>
</body>
</html>