[置顶]SpringMVC+Json构建基于Restful风格的应用
分类：
一、spring 版本：spring-framework-3.2.7.RELEASE
二、所需其它Jar包：
三、主要代码：
web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="" xmlns:xsi=""xsi:schemaLocation=" http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"version="2.5"><context-param><param-name>log4jConfigLocation</param-name><param-value>classpath:log4j.properties</param-value></context-param><context-param><param-name>log4jRefreshInterval</param-name><param-value>60000</param-value></context-param><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param><!– 编码过虑 –><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><filter-mapping><filter-name>encodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><!– Spring监听 –><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!– Spring MVC DispatcherServlet –><servlet><servlet-name>springMVC3</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:springMVC-servlet.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>springMVC3</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!– 解决HTTP PUT请求Spring无法获取请求参数的问题 –><filter><filter-name>HiddenHttpMethodFilter</filter-name><filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class></filter><filter-mapping><filter-name>HiddenHttpMethodFilter</filter-name><servlet-name>springMVC3</servlet-name></filter-mapping><display-name>UikitTest</display-name><welcome-file-list><welcome-file>/WEB-INF/jsp/index.jsp</welcome-file></welcome-file-list></web-app>springMVC-servlet.xml<?xml version="1.0" encoding="UTF-8"?><beans default-lazy-init="true"xmlns="" xmlns:p=""xmlns:tx="" xmlns:aop=""xmlns:xsi="" xmlns:context=""xmlns:mvc=""xsi:schemaLocation=""><!– 注解驱动 –><mvc:annotation-driven /><!– 扫描包 –><context:component-scan base-package="com.citic.test.action" /><!– 用于页面跳转,根据请求的不同跳转到不同页面，如请求index.do则跳转到/WEB-INF/jsp/index.jsp –><bean id="findJsp"class="org.springframework.web.servlet.mvc.UrlFilenameViewController" /><bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"><property name="mappings"><props><prop key="index.do">findJsp</prop><!– 表示index.do转向index.jsp页面 –><prop key="first.do">findJsp</prop><!– 表示first.do转向first.jsp页面 –></props></property></bean><!– 视图解析 –><bean class="org.springframework.web.servlet.view.UrlBasedViewResolver"><!– 返回的视图模型数据需要经过jstl来处理 –><property name="viewClass"value="org.springframework.web.servlet.view.JstlView" /><property name="prefix" value="/WEB-INF/jsp/" /><property name="suffix" value=".jsp" /></bean><!– 对静态资源文件的访问 不支持访问WEB-INF目录 –><mvc:default-servlet-handler /><!– 对静态资源文件的访问 支持访问WEB-INF目录 –><!– <mvc:resources location="/uikit-2.3.1/" mapping="/uikit-2.3.1/**" /> –><bean id="stringConverter" class="org.springframework.http.converter.StringHttpMessageConverter"><property name="supportedMediaTypes"><list><value>text/plain;charset=UTF-8</value></list></property></bean><!– 输出对象转JSON支持 –><bean id="jsonConverter"class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean><beanclass="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"><property name="messageConverters"><list><ref bean="stringConverter"/><ref bean="jsonConverter" /></list></property></bean></beans>Controller：package com.citic.test.action;import java.util.ArrayList;import java.util.List;import net.sf.json.JSONObject;import org.apache.log4j.Logger;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.ResponseBody;import com.citic.test.entity.Person;/** * 基于Restful风格架构测试 * * @author dekota * @since JDK1.5 * @version V1.0 * @history 2014-2-15 下午3:00:12 dekota 新建 */@Controllerpublic class DekotaAction {/** 日志实例 */private static final Logger logger = Logger.getLogger(DekotaAction.class);@RequestMapping(value = "/hello", produces = "text/plain;charset=UTF-8")public @ResponseBodyString hello() {return "你好！hello";}@RequestMapping(value = "/say/{msg}", produces = "application/json;charset=UTF-8")public @ResponseBodyString say(@PathVariable(value = "msg") String msg) {return "{\&;msg\&;:\&;you say:’" + msg + "’\&;}";}@RequestMapping(value = "/person/{id:\\d+}", method = RequestMethod.GET)public @ResponseBodyPerson getPerson(@PathVariable("id") int id) {logger.info("获取人员信息id=" + id);Person person = new Person();person.setName("张三");person.setSex("男");person.setAge(30);person.setId(id);return person;}@RequestMapping(value = "/person/{id:\\d+}", method = RequestMethod.DELETE)public @ResponseBodyObject deletePerson(@PathVariable("id") int id) {logger.info("删除人员信息id=" + id);JSONObject jsonObject = new JSONObject();jsonObject.put("msg", "删除人员信息成功");return jsonObject;}@RequestMapping(value = "/person", method = RequestMethod.POST)public @ResponseBodyObject addPerson(Person person) {logger.info("注册人员信息成功id=" + person.getId());JSONObject jsonObject = new JSONObject();jsonObject.put("msg", "注册人员信息成功");return jsonObject;}@RequestMapping(value = "/person", method = RequestMethod.PUT)public @ResponseBodyObject updatePerson(Person person) {logger.info("更新人员信息id=" + person.getId());JSONObject jsonObject = new JSONObject();jsonObject.put("msg", "更新人员信息成功");return jsonObject;}@RequestMapping(value = "/person", method = RequestMethod.PATCH)public @ResponseBodyList<Person> listPerson(@RequestParam(value = "name", required = false, defaultValue = "") String name) {logger.info("查询人员name like " + name);List<Person> lstPersons = new ArrayList<Person>();Person person = new Person();person.setName("张三");person.setSex("男");person.setAge(25);person.setId(101);lstPersons.add(person);Person person2 = new Person();person2.setName("李四");person2.setSex("女");person2.setAge(23);person2.setId(102);lstPersons.add(person2);Person person3 = new Person();person3.setName("王五");person3.setSex("男");person3.setAge(27);person3.setId(103);lstPersons.add(person3);return lstPersons;}}你会发现，曾经以为很难做到的事情，
