一、引言
本文使用springMVC和ajax做的一个小小的demo，实现将JSON对象返回到页面，没有什么技术含量，纯粹是因为最近项目中引入了springMVC框架。
二、入门例子
①. 建立工程,并导入相应spring jar包和解析json的包fastjson。
②. 在web.xml文件中配置Spring的核心类DispatcherServlet
③. 配置Spring的核心配置文件spring-servlet.xml
④. 编写实体类Person
public class Person {
private String name;
private Integer age;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String toString() {
return "[name: " + name + ", age: " + age + "]";
}
}
⑤. 编写控制器类PersonControll
@Controller
public class PersonControll {
@RequestMapping("toAjax.do")
public String toAjax() {
return "ajax";
}
@RequestMapping(value = "ajax.do", method = RequestMethod.GET)
public void ajax(@ModelAttribute Person person,PrintWriter printWriter) {
System.out.println(person);
String jsonString = JSON.toJSONString(person, SerializerFeature.PrettyFormat);
printWriter.write(jsonString);
printWriter.flush();
printWriter.close();
}
}
⑥. 编写访问页面ajax.jsp
<%@ 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>ajax for springMVC</title>
<script type="text/javascript" src="js/jquery-1.6.2.min.js"></script>
<script type="text/javascript">
$(function() {
$("#click").click(function() {
$.ajax( {
type : "GET",
url : "ajax.do",
data : "name=zhangsan&age=20",
dataType: "text",
success : function(msg) {
alert(msg);
}
});
});
});
</script>
</head>
<body>
<input id="click" type="button" value="click to show person" />
</body>
</html>
⑦. 访问url: http://localhost:8080/springMVC/toAjax.do
来自：http://blog.csdn.net/zdp072/article/details/18187033