Spring HTTP Service

简述：

基于Spring MVC, 使用Http Service Invoke远程调用方法

(参考： http://blog.csdn.net/hanqunfeng/article/details/4303127)

步骤：

1. 本地定义接口，并在配置文件中说明

PersonService.java

package com.anialy.httpservice.service;import com.anialy.httpservice.entity.Person;public interface PersonService {public Person getPersonByName(String name);}

PersonService.java

package com.anialy.httpservice.service.impl;import com.anialy.httpservice.entity.Person;import com.anialy.httpservice.service.PersonService;public class PersonServiceImpl implements PersonService{public Person getPersonByName(String name) {if("anialy".equals(name))return new Person("anialy", 100);return null;}}

applicationContext-server-http-service.xml

<?xml version="1.0" encoding="UTF-8"?><!-- 指定Spring配置文件的Schema信息 --><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd"><bean id="httpService"class="org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter"><property name="service"><ref bean="personService" /></property><property name="serviceInterface" value="com.anialy.httpservice.service.PersonService"></property></bean>        <bean id="personService" class="com.anialy.httpservice.service.impl.PersonServiceImpl"/>        </beans>

2. mvc配置服务uri与对应的service

applicationContext-mvc.xml

<?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:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd"><mvc:view-controller path="/" view-name="redirect:/home" /><mvc:view-controller path="/home" view-name="home" />    <!-- Spring Service Invoke --><bean        class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">         <property name="mappings">            <props>                  <prop key="/service/httpService">httpService</prop>            </props>        </property>    </bean>    <!-- Spring MVC --><beanclass="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"><property name="mappings"><value>/test=testController</value></property><property name="order" value="1" /></bean><bean id="testController" class="com.anialy.webproj.controller.TestController"><property name="methodNameResolver" ref="paramResolver" /></bean><!-- 定义JSP --><beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/WEB-INF/views/" /><property name="suffix" value=".jsp" /></bean><bean id="paramResolver"class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver"><property name="paramName" value="action" /><property name="defaultMethodName" value="test" /></bean></beans>

3.  客户端配置uri的invoke

applicationContext-client-http-service.xml

<?xml version="1.0" encoding="UTF-8"?><!-- 指定Spring配置文件的Schema信息 --><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd"><bean id="personService"class="org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean"depends-on="propertyConfigurer"><property name="serviceUrl" ><value>http://${host}:${port}/${contextPath}/service/httpService</value></property><property name="serviceInterface" value="com.anialy.httpservice.service.PersonService"></property></bean></beans>

设置属性文件

system.properties

serviceName=localhosthost=127.0.0.1port=8080contextPath=WebProj

加载配置文件的xml

applicationContext-constants.xml

<?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:tx="http://www.springframework.org/schema/tx"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"><bean id="propertyConfigurer"class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations"><list><value>classpath:jdbc.properties</value><value>classpath:system.properties</value></list></property></bean></beans>

4. 编写测试方法

TestHttpServiceInvoke.java

package httpservice;import java.io.IOException;import org.junit.Before;import org.junit.Test;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.anialy.httpservice.entity.Person;import com.anialy.httpservice.service.PersonService;public class TestHttpServiceInvoke {private static final Logger logger         = LoggerFactory.getLogger(TestHttpServiceInvoke.class);private ApplicationContext ctx;private PersonService personService;@Beforepublic void init() throws IOException{ctx = new ClassPathXmlApplicationContext(new String[]{"classpath*:/applicationContext-client-http-service.xml","classpath*:/applicationContext-constants.xml"});personService = (PersonService)  ctx.getBean("personService");System.out.println("");}@Testpublic void test() {Person person = personService.getPersonByName("anialy");logger.info("姓名：" + person.getName());logger.info("年龄：" + person.getAge());}}

输出：