Spring MVC and jquery Ajax

In Spring MVC3, it is convenient to respond and accept JSON.
Using the annotation @responsebody, you can convert the results (a map containing strings and JavaBean) to JSON.
Using @RequestBody annotations The foreground only needs to submit a conforming json,spring to the Controller that will automatically assemble it into a bean.

Spring this transformation is implemented by the Org.codehaus.jackson component, all of which require the introduction of JACKSON-CORE-ASL and Org.codehaus.jackson two jar packages

<title>spring Mvc</title><script type="Text/javascript"Src="Http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script><script type="Text/javascript"Src="Http://jquery-json.googlecode.com/files/jquery.json-2.2.min.js"></script><script type="Text/javascript"Src="<%=request.getcontextpath ()%>/scripts/user/index.js"></script>"Info"></div><form action="Add"Method="Post"Id="form">Number:<input type="text"Name="ID"/>Name:<input type="text"Name="username"/>Age:<input type="text"Name=" Age"/><input type="Button"Value="Submit"Id="Submit"/></form></body>
HTML file path: .../webapp/views/index.html
//returning data from a form to a JSON object$.fn.serializeobject =function () {varo = {}; varA = This. Serializearray (); $.each (A, function () {if(o[ This. Name]) {      if(!o[ This. Name].push) {o[ This. name] = [o[ This. Name]]; } o[ This. Name].push ( This. value | |"'); } Else{o[ This. Name] = This. value | |"';  }  }); returno;}; $ (document). Ready (function () {Jquery.ajax ({type:'GET', ContentType:'Application/json', URL:'user/list', DataType:'JSON', Success:function (data) {if(data && data.success = ="true") {            $('#info'). HTML ("Total"+ Data.total +"Bar data. <br/>"); $.each (Data.data, function (I, item) {$ ('#info'). Append ("Number:"+ Item.id +", Name:"+Item.username+", Age:"+item.age);          }); }}, Error:function () {alert ("Error")        }      }); $("#submit"). Click (function () {varJsonuserinfo = $.tojson ($ ('#form'). SerializeObject ());        alert (jsonuserinfo); Jquery.ajax ({type:'POST', ContentType:'Application/json', URL:'User/add', Data:jsonuserinfo, DataType:'JSON', Success:function (data) {alert ("New Success! "); }, Error:function (data) {alert ("Error")          }        });    }); });
@Controller @requestmapping ("/user") Public classDemocontroller {PrivateLogger Logger = Loggerfactory.getlogger (Democontroller.class); @RequestMapping (Value="/list", method =requestmethod.get) @ResponseBody PublicMap<string, object>getuserlist () {Logger.info ("List"); List<UserModel> list =NewArraylist<usermodel>(); Usermodel um=NewUsermodel (); Um.setid ("1"); Um.setusername ("SSS"); Um.setage (222);    List.add (UM); Map<string, object> modelmap =NewHashmap<string, Object> (3); Modelmap.put (" Total","1"); Modelmap.put ("Data", list); Modelmap.put ("Success","true"); returnModelmap; } @RequestMapping (Value="/add", method =requestmethod.post) @ResponseBody PublicMap<string, string>AddUser (@RequestBody Usermodel model) {Logger.info ("New"); Logger.info ("capture the model that was passed to the foreground, with the name:"+model.getusername ()); Map<string, string> map =NewHashmap<string, String> (1); Map.put ("Success","true"); returnmap; }}
Another way to transfer parameters
Front-End Code:
$.ajax ({type: "POST",
           " ASSIGN.V " ,            data: {               Userid:userid,               'add[]' : [1,2 ,3],               'del[]' : [4]           },           Success:function (data) {               searchwidget.searchuser (1);               }    });
Back-End Code:
@ResponseBody @RequestMapping (value="/assign", Method=requestmethod.post) PublicString Assign (@RequestParam (value="userId", required=true)intuserId, @RequestParam (value="add[]", required=false)int[] Add, @RequestParam (value="del[]", required=false)int[] del) {System. out. println ("userId:"+userId); System. out. println ("Add:"+add); System. out. println ("del:"+del); return ""; }
 Spring MVC and jquery ajax