在服务器端取得客户端传递过来的JSON字符串，转成JSON对象并取值
1. 配置web.xml 配置字符编码过滤器
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>springMVC</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>*.spring</url-pattern>
</servlet-mapping>
2. 新建sendAjax.jsp
<script src="jquery-1.8.3.js"></script>
<script type="text/javascript">
function userinfo(username,password){
this.username=username;
this.password=password;
}
function sendAjax(){
var userinfoRef=new userinfo("王淑雅","wsy");
var jsonStringRef=JSON.stringify(userinfoRef);
$.post("getJSONString.spring?t="+new Date().getTime(),{jsonString:jsonStringRef});
}
</script>
<title>sendAjax.jsp</title>
</head>
<body>
<input type="button" οnclick="sendAjax()" value="onclick">
</body>
3.创建控制层GetJSONString.java
@Controller
public class GetJSONString{
@RequestMapping(value="getJSONString")
public StringgetJSONString(@RequestParam("jsonString")StringjsonString){
JSONObject object =JSONObject.fromObject(jsonString);
System.out.println(object.get("username"));
System.out.println(object.get("password"));
return "test.jsp"; }
}
