springmvc rest服务deom实例，springmvcdeom,服务实现功能如下: sp

springmvc rest服务deom实例，springmvcdeom,服务实现功能如下: sp

服务实现功能如下:

spring rest服务:1.GetClient和GetController,Spring mvc rest template的get方法使用demo.2.PostClient和PostController,Spring mvc rest template的post方法使用demo.3.FileUploadClient和FileUploadController,Spring mvc rest template向服务器上传文件demo.

闲话少说,这是一个web服务，所以先看web.xml,

    <?xml version="1.0" encoding="UTF-8"?>      <web-app version="2.5"           xmlns="http://java.sun.com/xml/ns/javaee"           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"           xsi:schemaLocation="http://java.sun.com/xml/ns/javaee           http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">        <display-name></display-name>           <!-- 配置spring mvc的主控servlet -->          <servlet>              <servlet-name>springmvc</servlet-name>              <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>          </servlet>          <!-- 配置spring mvc处理的url -->          <servlet-mapping>              <servlet-name>springmvc</servlet-name>              <url-pattern>*.mvc</url-pattern>          </servlet-mapping>      </web-app>  

然后看，springmvc对应的配置文件:```xml<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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<!-- spring mvc需要一个自己的配置文件,此配置文件的名字和web.xml文件中关于spring mvc相关的servlet的  servlet name有一个契约,必须采用<servlet-name>-servlet.xml -->  <!-- 扫描controller包, 将标注spring注解的类自动转化为bean, 同时完成bean的注入 -->  <context:component-scan base-package="com.ilucky.springmvc.rest.controller" /><!-- 配置springmvc视图解析器 -->  <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">      <property name="viewClass">          <value>org.springframework.web.servlet.view.JstlView</value>      </property>      <property name="prefix">          <value>/</value>      </property>      <property name="suffix">          <value>.jsp</value>      </property>  </bean><!-- 设置上传文件的最大尺寸为100MB -->  <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">      <property name="maxUploadSize">          <value>102400000</value>      </property>  </bean>

</beans>

马上看get实例：```java    package com.ilucky.springmvc.rest.controller;      import org.springframework.web.client.RestTemplate;      /**      * 测试Spring Rest的Get方法.      * @author IluckySi      * @since 20141107      */      public class GetClient {          public static void main (String[] args) {              String url = "http://localhost:8080/spring-rest/get.mvc?test=get";              RestTemplate rest = new RestTemplate();              Object result = rest.getForObject(url, String.class);              System.out.println("测试Spring Rest的Get方法: " + result);          }      }  

    package com.ilucky.springmvc.rest.controller;      import java.io.PrintWriter;      import javax.servlet.http.HttpServletRequest;      import javax.servlet.http.HttpServletResponse;      import org.springframework.context.annotation.Scope;      import org.springframework.stereotype.Controller;      import org.springframework.web.bind.annotation.RequestMapping;      import org.springframework.web.bind.annotation.RequestMethod;      import org.springframework.web.bind.annotation.RequestParam;      /**      * 测试Spring Rest的Get方法.      * @author IluckySi      * @since 20141107      */      @Controller("getController")      @Scope("prototype")      public class GetController {          @RequestMapping(value = "/get", method = RequestMethod.GET)            public void get(HttpServletRequest request, HttpServletResponse response,                  @RequestParam(value = "test", required = true) String test) {              System.out.println("测试Spring Rest的Get方法: test = " + test);              PrintWriter pw = null;              try {                  response.setContentType("application/xml;charset=utf-8");                  pw = response.getWriter();                  pw.write("<result>success</result>");              } catch (Exception e) {                  e.printStackTrace();              } finally {                  pw.close();              }          }      }  

post实例：```java package com.ilucky.springmvc.rest.controller;

import org.springframework.util.LinkedMultiValueMap;  import org.springframework.util.MultiValueMap;  import org.springframework.web.client.RestTemplate;/**  * 测试Spring Rest的Post方法.  * @author IluckySi  * @since 20141107  */  public class PostClient {    @SuppressWarnings({ "rawtypes", "unchecked" })      public static void main (String[] args) {          String url = "http://localhost:8080/spring-rest/post.mvc";          RestTemplate rest = new RestTemplate();          MultiValueMap<String, Object> param = new LinkedMultiValueMap();          param.add("test", "post");          Object result = rest.postForObject(url, param, String.class);          System.out.println("测试Spring Rest的Post方法: " + result);      }  }

```java    package com.ilucky.springmvc.rest.controller;      import java.io.PrintWriter;      import javax.servlet.http.HttpServletRequest;      import javax.servlet.http.HttpServletResponse;      import org.springframework.context.annotation.Scope;      import org.springframework.stereotype.Controller;      import org.springframework.web.bind.annotation.RequestMapping;      import org.springframework.web.bind.annotation.RequestMethod;      import org.springframework.web.bind.annotation.RequestParam;      /**      * 测试Spring Rest的Post方法.      * @author IluckySi      * @since 20141107      */      @Controller("postController")      @Scope("prototype")      public class PostController {          @RequestMapping(value = "/post", method = RequestMethod.POST)            public void post(HttpServletRequest request, HttpServletResponse response,                  @RequestParam(value = "test", required = true) String test) {              System.out.println("测试Spring Rest的Post方法: test = " + test);              PrintWriter pw = null;              try {                  response.setContentType("application/xml;charset=utf-8");                  pw = response.getWriter();                  pw.write("<result>success</result>");              } catch (Exception e) {                  e.printStackTrace();              } finally {                  pw.close();              }          }      }  

上传文件实例:```java package com.ilucky.springmvc.rest.controller;

import java.io.File;import org.springframework.core.io.FileSystemResource;  import org.springframework.util.LinkedMultiValueMap;  import org.springframework.util.MultiValueMap;  import org.springframework.web.client.RestTemplate;/**  * 测试Spring Rest的文件上传.  * @author IluckySi  * @since 20141107  * 注意:使用Spring Rest进行文件上传,  * 需要在spring mvc对应的配置文件中,做如下配置:  * <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">         <property name="maxUploadSize">             <value>102400000</value>         </property>     </bean>     否则会报如下异常:     resulted in 400 (Bad Request); invoking error handler  */  public class FileUploadClient {    @SuppressWarnings({ "rawtypes", "unchecked" })      public static void main(String[] args) {          String url = "http://localhost:8080/spring-rest/fileUpload.mvc";          String filePath = "E:\\fileUpload.zip";          RestTemplate rest = new RestTemplate();          FileSystemResource resource = new FileSystemResource(new File(filePath));          MultiValueMap<String, Object> param = new LinkedMultiValueMap();          param.add("fileName", "fileUpload.zip");           param.add("file", resource);            Object result = rest.postForObject(url, param, String.class);          System.out.println("测试Spring RestT的文件上传: " + result);      }  }

```java    package com.ilucky.springmvc.rest.controller;      import java.io.File;      import java.io.PrintWriter;      import javax.servlet.http.HttpServletRequest;      import javax.servlet.http.HttpServletResponse;      import org.springframework.context.annotation.Scope;      import org.springframework.stereotype.Controller;      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.multipart.MultipartFile;      /**      * 测试Spring Rest的文件上传.      * @author IluckySi      * @since 20141107      */      @Controller("fileUploadController")      @Scope("prototype")      public class FileUploadController {          @RequestMapping(value = "/fileUpload", method = RequestMethod.POST)          public void fileUpload(HttpServletRequest request, HttpServletResponse response,                  @RequestParam(value = "fileName", required = true) String fileName,                  @RequestParam(value = "file", required = true) MultipartFile file) {              System.out.println("文件名称是: " + fileName);              PrintWriter pw = null;              try {                  //将文件写入目标文件,如果有文件服务器,可以将其写到固定的文件服务器上,测试:写到本地文件.                  File server = new File("E://" + fileName);                  file.transferTo(server);                  response.setContentType("application/xml;charset=utf-8");                  pw = response.getWriter();                  pw.write("<result>success</result>");                  System.out.println("测试Spring Rest的文件上传");              } catch (Exception e) {                  e.printStackTrace();              } finally {                  pw.close();              }          }        }  

ok!完工！springmvc的rest你学会使用了吗！