Spring MVC second day "annotation implementation SPRINGMVC handler handling Ajax simple request configuration"

This is used in the foreground to initiate AJAX request handler, background forgery data response to the foreground,

Configure the handler information for the corresponding AJAX request as follows

1 @Controller2  public classMycontroller {3    //Processor Method4@RequestMapping (value= "/first.do", produces= "text/html;charset=utf-8")5      public voidDofirst (httpservletresponse Response)throwsioexception{6         //Forgery of data7         8map<string, userinfo> map=NewHashmap<string,userinfo>();9UserInfo u1=NewUserInfo ();TenU1.setage (12); oneU1.setname ("congratulations on employment"); a          -UserInfo u2=NewUserInfo (); -U2.setage (122); theU2.setname ("smooth employment"); -          -Map.put ("001", u1); -Map.put ("002", u2); +          -         //tool Map----json String Fastjson +String jsonstring =json.tojsonstring (map); aResponse.setcharacterencoding ("utf-8"); at         //Response Flow - response.getwriter (). Write (jsonstring); - response.getwriter (). Close (); -          -     } -        in      -}

The Fastjson tool is used here to convert the map object to a JSON string, with the response parameter passed to the Foreground.

The JSON is similar to: {"002": {"age": 122, "name": "smooth employment"}, This kind of information,

Use JS code to Parse:

1 $.ajax ({2Url: "first.do",3Success:function (data) {//data refers to what is printed from the server to the browser4                    //jsonstring Jsonobject5                    //{"001": {"age": 122, "name": "smooth employment"}}6var result= eval ("(" +data+ ")");7                   8                }9});

Here: Spring's Default JSON protocol parsing is done by Jackson.

Need to introduce three Jackson jar packs

Case Download: 05-mvc-annotation-handlerreturn-ajax

Http://pan.baidu.com/s/1cpCKTS

Spring MVC second day "annotation implementation SPRINGMVC handler handling Ajax simple request configuration"