Application of Jquery,ajax and JSON technology under SPRINGMVC

1. Build the spring MVC environment and import the packages required for SPRINGMVC development

2. Web. XML configuration
   

<?xml version= "1.0"  encoding= "UTF-8"? ><web-app xmlns:xsi= "http://www.w3.org/2001/ Xmlschema-instance "         xmlns=" http://java.sun.com/xml/ns/ Java ee " xmlns:web=" http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd "          xsi:schemalocation= "Http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee /web-app_2_5.xsd "         id=" webapp_id " version=" 2.5 ">   <welcome-file-list>    <welcome-file>/index.jsp</welcome-file >  </welcome-file-list>  <context-param>    < param-name>contextconfiglocation</param-name>    <param-value>classpath:/ applicationcontext.xml</param-value>  </context-param>  <!--  Configure Spring Boot listener ingress &NBSP;--&GT;&NBSP;&NBsp;<listener>    <listener-class> Org.springframework.web.context.contextloaderlistener</listener-class>  </listener>   <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>    <init-param>       <param-name>forceencoding</param-name>      <param-value >true</param-value>    </init-param>  </filter>   <!-- encoding filter for jsp page -->   <filter-mapping>    <filter-name>encodingfilter</filter-name >    <url-pattern>/*</url-pattern>  </filter-mapping>   <!--  Configuration springmvc start Dispatcherservlet portal  -->  <!--  Central Controller  -->   <servlet>    <servlet-name>springMVC</servlet-name>     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>     <init-param>      <param-name> contextconfiglocation</param-name>      <param-value>classpath:/ spring-mvc.xml</param-value>    </init-param>    < Load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>     <servlet-name>springmvc</servlet-name>    <!-- struts wont use/*, SPRINGMVC  -->     <url-pattern>/</url-pattern>  </servlet-mapping>  < servlet-mapping>  <!--here without *.js words, can not be src= "" Reference WebApp under the file, other similar-->    < Servlet-name>default</servlet-name>    <url-pattern>*.js</url-pattern >  </servlet-mapping>  <servlet-mapping>    < Servlet-name>default</servlet-name>    <url-pattern>*.css</url-pattern >  </servlet-mapping>  <servlet-mapping>    < Servlet-name>default</servlet-name>    <url-pattern>*.jpg</url-pattern >  </servlet-mapping>  <display-name>Archetype Created Web  application</display-name>&Lt;/web-app>3.===================spring-mvc.xml content (I put it in the resources directory) ===================================< ? xml version= "1.0"  encoding= "UTF-8"? ><beans xmlns= "http://www.springframework.org/schema/ Beans "       xmlns:xsi=" http://www.w3.org/2001/XMLSchema-instance "  xmlns:p= "http://www.springframework.org/schema/p"        xmlns:mvc= "http// Www.springframework.org/schema/mvc " xmlns:context=" Http://www.springframework.org/schema/context "        xmlns:util= "Http://www.springframework.org/schema/util"  xsi: Schemalocation= "http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/ spring-beans-4.2.xsd            http:// www.springframework.org/schema/context http://www.springframework.org/schema/context/ spring-context-4.2.xsd             http://www.springframework.org/schema/mvc http:// www.springframework.org/schema/mvc/spring-mvc-4.2.xsd             http://www.springframework.org/schema/util http://www.springframework.org/schema/util/ Spring-util-4.2.xsd ">    <!--  Activate annotation mode, such as @controller -->     <mvc:annotation-driven />    <!--  Scans the annotations of classes in the package, creating beans and automatic dependency injection   -->    <context:component-scan base-package= "Cn.ys.controller"  />    <bean class= " Org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter " />     <bean id= "Viewresolver"  class= " Org.springframework.web.servlet.view.InternalResourceViewResolver ">         <property name= "prefix" >            <value>/</value>         </property>        < Property name= "suffix" >            < value>.jsp</value>        </property>     </bean></beans>4.=============== write a controller in the output JSON format (Jkson and other jar packages) ======

package cn.ys.controller;import org.springframework.stereotype.controller;import  org.springframework.web.bind.annotation.requestmapping;import  org.springframework.web.bind.annotation.responsebody;import org.springframework.web.servlet.modelandview; import java.text.simpledateformat;import java.util.arraylist;import java.util.date;import  java.util.list;/***  @author   Dengcong   E-mail:[email protected]*  @version   creation Time: *   Class description      output a JSON array of length 10 */@Controllerpublic  class showcontroller {      @ResponseBody//Output JSON object annotations      @RequestMapping   (  "/ ShowTime " )     public list<string> showtime ()  {         SimpleDateFormat simpleDateFormat = new  SimpleDateFormat ("Yyyy-mm-dd hh:mm:ss");         strinG format = simpledateformat.format (New date ());         ArrayList<String> strings = new ArrayList<String> ();         for  (int i=0;i<10;i++) {             strings.add (format);        }         return strings;    }}5.================== index.jsp=============================

<%@ taglib prefix= "Form"  uri= "Http://www.springframework.org/tags/form"  %><%--   created by intellij idea.  user: administrator  date:  2017/10/6  Time: 19:48  To change this template use  File | settings | file templates.--%><%@ page contenttype= "text/html; Charset=utf-8 " language=" Java  %>

Application of Jquery,ajax and JSON technology under SPRINGMVC