Spring MVC Ajax Request

Add in Jar Package

Jackson-annotations-2.5.0.jar

Jackson-core-2.5.0.jar

Jackson-databind-2.5.0.jar

Springmvx.xml

<?XML version= "1.0" encoding= "UTF-8"?><Beansxmlns= "Http://www.springframework.org/schema/beans"Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xmlns:mvc= "Http://www.springframework.org/schema/mvc"Xmlns:context= "Http://www.springframework.org/schema/context"xsi:schemalocation= "Http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd HT        Tp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd Http://www.springframework.org/schema/context http://www.springframework.org/schema/context/ Spring-context-4.1.xsd ">    <!--Spring MVC Annotation Driver -    <Mvc:annotation-driven/>    <!--Scanning Device -    <Context:component-scanBase-package= "com" />    <!--Configuring the View resolver -    <Beanclass= "Org.springframework.web.servlet.view.InternalResourceViewResolver">        <!--Prefixes and suffixes -        < Propertyname= "prefix"value="/"></ Property>        < Propertyname= "suffix"value= ". jsp"></ Property>    </Bean>    <!--read/write string from request and response -    <BeanID= "Stringhttpmessage"class= "Org.springframework.http.converter.StringHttpMessageConverter">        < Propertyname= "Supportedmediatypes">            <List>                <value>Text/plain;charset=utf-8</value>            </List>        </ Property>    </Bean>    <!--used to convert an object to JSON -    <BeanID= "Jsonconverter"class= "Org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></Bean>    <Beanclass= "Org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">        < Propertyname= "Messageconverters">            <List>                <refBean= "Stringhttpmessage" />                <refBean= "Jsonconverter" />            </List>        </ Property>    </Bean></Beans>

Handler

 PackageCom.stone.controller;ImportJava.io.PrintWriter;ImportJavax.servlet.http.HttpServletResponse;ImportOrg.springframework.stereotype.Controller;Importorg.springframework.web.bind.annotation.RequestMapping;ImportOrg.springframework.web.bind.annotation.ResponseBody;ImportCom.stone.bean.UserInfo;/** */@Controller Public classUsercontroller {@RequestMapping ("/ajaxuser.do")     Public voidusernumber (String num, httpservletresponse response) {System.out.println (num); Try {            //ResponseResponse.setcontenttype ("text/html"); Response.setcharacterencoding ("Utf-8"); PrintWriter out=Response.getwriter (); if("Stone". Equals (num)) {Out.println ("Sorry, please re-enter the account!" "); } Else{out.println ("Congratulations, you can use the account!" ");            } out.flush ();        Out.close (); } Catch(Exception e) {e.printstacktrace (); }} @RequestMapping ("/ajaxuser2.do")     Public@ResponseBody UserInfo ajaxuser (Integer userId) {System.out.println ("-------Bianhao:" +userId); UserInfo User=NewUserInfo ();        User.setuserid (USERID); User.setusername ("Zhang San"); User.setusersex (Male); returnuser; }}

Js

functionBtn01click () {varnum = $ (' #userNumber '). Val (); if(num = = ") {alert (' Please enter your account! ‘); } Else{$.post (' Ajaxuser.do ', {num:num},function(data) {alert (data);    }); }}functionBtn02click () {varnum = $ (' #userId '). Val (); if(num = = ") {alert (' Please enter your account! ‘); } Else{$.post (' Ajaxuser2.do ', {userid:num},function(data) {alert (Data.userid+ '----' +data.username+ '----' +data.usersex); }, "JSON"); }}

Java Bean

 PackageCom.stone.bean;Importjava.util.Arrays;Importjava.util.Date;ImportOrg.springframework.format.annotation.DateTimeFormat; Public classUserInfo {PrivateInteger userId; PrivateString UserName; PrivateString Usersex; Privatestring[] USERXQ; @DateTimeFormat (Pattern= "Yyyy-mm-dd HH:mm:ss")    PrivateDate Usertime; @Override PublicString toString () {return"UserInfo [userid=" + UserId + ", username=" +UserName+ ", usersex=" + Usersex + ", userxq=" + arrays.tostring (USERXQ) + ", usertime=" + Usertime + "]"; }     PublicDate Getusertime () {returnUsertime; }     Public voidsetusertime (Date usertime) { This. Usertime =Usertime; }     Publicstring[] Getuserxq () {returnUSERXQ; }     Public voidsetuserxq (string[] userxq) { This. USERXQ =USERXQ; }     PublicInteger getUserId () {returnuserId; }     Public voidSetuserid (Integer userId) { This. UserId =userId; }     PublicString GetUserName () {returnUserName; }     Public voidsetusername (String userName) { This. UserName =UserName; }     PublicString Getusersex () {returnUsersex; }     Public voidsetusersex (String usersex) { This. Usersex =Usersex; }}

Spring MVC Ajax Request