Spring HTTP Service

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

1. package com.anialy.httpservice.service;
2. import com.anialy.httpservice.entity.Person;
3. public interface PersonService {
4. public Person getPersonByName(String name);
5. }

PersonService.java

1. package com.anialy.httpservice.service.impl;
2. import com.anialy.httpservice.entity.Person;
3. import com.anialy.httpservice.service.PersonService;
4. public class PersonServiceImpl implements PersonService{
5. public Person getPersonByName(String name) {
6. if("anialy".equals(name))
7. return new Person("anialy", 100);
8. return null;
9. }
10. }

applicationContext-server-http-service.xml

1. <?xml version="1.0" encoding="UTF-8"?>
2. <!-- 指定Spring配置文件的Schema信息 -->
3. <beans xmlns="http://www.springframework.org/schema/beans"
4. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
5. xmlns:tx="http://www.springframework.org/schema/tx"
6. xsi:schemaLocation="http://www.springframework.org/schema/beans
7. http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
8. http://www.springframework.org/schema/tx
9. http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
10. http://www.springframework.org/schema/aop
11. http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
12. <bean id="httpService"
13. class="org.springframework.remoting.httpinvoker.HttpInvokerServiceExporter">
14. <property name="service">
15. <ref bean="personService" />
16. </property>
17. <property name="serviceInterface" value="com.anialy.httpservice.service.PersonService">
18. </property>
19. </bean>
20. <bean id="personService" class="com.anialy.httpservice.service.impl.PersonServiceImpl"/>
21. </beans>

2. mvc配置服务uri与对应的service

applicationContext-mvc.xml

1. <?xml version="1.0" encoding="UTF-8"?>
2. <beans xmlns="http://www.springframework.org/schema/beans"
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
4. xmlns:mvc="http://www.springframework.org/schema/mvc"
5. xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
6. http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
7. http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
8. <mvc:view-controller path="/" view-name="redirect:/home" />
9. <mvc:view-controller path="/home" view-name="home" />
10. <!-- Spring Service Invoke -->
11. <bean
12. class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
13. <property name="mappings">
14. <props>
15. <prop key="/service/httpService">httpService</prop>
16. </props>
17. </property>
18. </bean>
19. <!-- Spring MVC -->
20. <bean
21. class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
22. <property name="mappings">
23. <value>
24. /test=testController
25. </value>
26. </property>
27. <property name="order" value="1" />
28. </bean>
29. <bean id="testController" class="com.anialy.webproj.controller.TestController">
30. <property name="methodNameResolver" ref="paramResolver" />
31. </bean>
32. <!-- 定义JSP -->
33. <bean
34. class="org.springframework.web.servlet.view.InternalResourceViewResolver">
35. <property name="prefix" value="/WEB-INF/views/" />
36. <property name="suffix" value=".jsp" />
37. </bean>
38. <bean id="paramResolver"
39. class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
40. <property name="paramName" value="action" />
41. <property name="defaultMethodName" value="test" />
42. </bean>
43. </beans>

3.  客户端配置uri的invoke

applicationContext-client-http-service.xml

1. <?xml version="1.0" encoding="UTF-8"?>
2. <!-- 指定Spring配置文件的Schema信息 -->
3. <beans xmlns="http://www.springframework.org/schema/beans"
4. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
5. xmlns:tx="http://www.springframework.org/schema/tx"
6. xsi:schemaLocation="http://www.springframework.org/schema/beans
7. http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
8. http://www.springframework.org/schema/tx
9. http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
10. http://www.springframework.org/schema/aop
11. http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
12. <bean id="personService"
13. class="org.springframework.remoting.httpinvoker.HttpInvokerProxyFactoryBean"
14. depends-on="propertyConfigurer">
15. <property name="serviceUrl" >
16. <value>
17. http://${host}:${port}/${contextPath}/service/httpService
18. </value>
19. </property>
20. <property name="serviceInterface" value="com.anialy.httpservice.service.PersonService">
21. </property>
22. </bean>
23. </beans>

设置属性文件

system.properties

1. serviceName=localhost
2. host=127.0.0.1
3. port=8080
4. contextPath=WebProj

加载配置文件的xml

applicationContext-constants.xml

1. <?xml version="1.0" encoding="UTF-8"?>
2. <beans xmlns="http://www.springframework.org/schema/beans"
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
4. xmlns:tx="http://www.springframework.org/schema/tx"
5. xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
6. http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
7. <bean id="propertyConfigurer"
8. class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
9. <property name="locations">
10. <list>
11. <value>classpath:jdbc.properties</value>
12. <value>classpath:system.properties</value>
13. </list>
14. </property>
15. </bean>
16. </beans>

4. 编写测试方法

TestHttpServiceInvoke.java

1. package httpservice;
2. import java.io.IOException;
3. import org.junit.Before;
4. import org.junit.Test;
5. import org.slf4j.Logger;
6. import org.slf4j.LoggerFactory;
7. import org.springframework.context.ApplicationContext;
8. import org.springframework.context.support.ClassPathXmlApplicationContext;
9. import com.anialy.httpservice.entity.Person;
10. import com.anialy.httpservice.service.PersonService;
11. public class TestHttpServiceInvoke {
12. private static final Logger logger
13. = LoggerFactory.getLogger(TestHttpServiceInvoke.class);
14. private ApplicationContext ctx;
15. private PersonService personService;
16. @Before
17. public void init() throws IOException{
18. ctx = new ClassPathXmlApplicationContext(new String[]{
19. "classpath*:/applicationContext-client-http-service.xml",
20. "classpath*:/applicationContext-constants.xml"
21. });
22. personService = (PersonService)  ctx.getBean("personService");
23. System.out.println("");
24. }
25. @Test
26. public void test() {
27. Person person = personService.getPersonByName("anialy");
28. logger.info("姓名：" + person.getName());
29. logger.info("年龄：" + person.getAge());
30. }
31. }

输出：