Hessian的入门

灰太狼 2022-07-26 04:18 137阅读 0赞

jar包hessian 4.0.38

一、基于servlet的配置

1、需要创建一个接口

package com.yaoxun.spring4.hessian;
    
    /**
     * 测试Hessian服务接口
     * @author Loren
     *
     */
    public interface HelloService {
    
    	/**
    	 * 说
    	 * @param name
    	 */
    	public void sayHello(String name);
    	
    }

2、编写实现类

package com.yaoxun.spring4.hessian.impl;
    
    
    import com.yaoxun.spring4.hessian.HelloService;
    
    /**
     * HelloSerivce实现类
     * @author Loren
     *
     */
    public class HelloServiceImpl implements HelloService {
    
    	
    	
    
    	@Override
    	public void sayHello(String name) {
    		System.out.println("Hello " + name + "!");
    	}
    
    }

3、配置web.xml文件

<servlet>
    		<servlet-name>hessian-service</servlet-name>
    		<servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
    		<init-param>
    			
    			<param-name>home-class</param-name>
    			<param-value>com.yaoxun.spring4.hessian.impl.HelloServiceImpl</param-value>
    		</init-param>
    		<init-param>
    			
    			<param-name>home-api</param-name>
    			<param-value>com.yaoxun.spring4.hessian.HelloService</param-value>
    		</init-param>
    	</servlet>
    	<servlet-mapping>
             <servlet-name>hessian-service</servlet-name>
             <url-pattern>/hessian</url-pattern>
        </servlet-mapping>

4、启动服务器访问

http://localhost:8080/spring4/hessian

出现

# Hessian Requires POST #

说明配置成功

5、客户端代码

package com.yaoxun.spring4.hessian.test;
    
    import java.net.MalformedURLException;
    
    import com.caucho.hessian.client.HessianProxyFactory;
    import com.yaoxun.spring4.hessian.HelloService;
    
    /**
     * Hessian测试
     * @author Loren
     *
     */
    public class HessianTest {
    
    	public static void main(String[] args) throws MalformedURLException {
    		String url = "http://localhost:8080/spring4/hessian";
    		HessianProxyFactory factory = new HessianProxyFactory();
    		HelloService helloService = (HelloService) factory.create(HelloService.class,url);
    		
    		helloService.sayHello("张三");
    		
    	}
    	
    }

二、与springMVC进行整合

1、编写接口和实现类，与servlet方式类似

2、配置web.xml文件

<servlet>
    		<servlet-name>springDispatcherServlet</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>classpath:spring/springmvc.xml</param-value>
    		</init-param>
    		<load-on-startup>1</load-on-startup>
    		<async-supported>true</async-supported>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>springDispatcherServlet</servlet-name>
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    
    
    	<servlet>
    		<servlet-name>hessian</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		<init-param>
    			<param-name>contextConfigLocation</param-name>
    			<param-value>classpath:hessian/spring-hessian.xml</param-value>
    		</init-param>
    		<load-on-startup>1</load-on-startup>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>hessian</servlet-name>
    		<url-pattern>*.h</url-pattern>
    	</servlet-mapping>

3、配置springmvc.xml用于springmvc的访问拦截

<?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:mvc="http://www.springframework.org/schema/mvc"
    	xmlns:context="http://www.springframework.org/schema/context"
    	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
    		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">
    	
    	<context:component-scan base-package="com.yaoxun.spring4.web.handler"></context:component-scan>
    	
    	<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
    	
    	
    	<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>
    	
    		
    	
    	
    	<bean
    		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<property name="prefix" value="/WEB-INF/jsp/" />
    		<property name="suffix" value=".jsp" />
    	</bean>
    	
    </beans>

4、配置spring-hessian.xml用于hessian提供服务

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
    	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd">
    	
    	
    	<bean id="helloService" class="com.yaoxun.spring4.hessian.impl.HelloServiceImpl"></bean>
    	
    	<bean name="/hello.h" class="org.springframework.remoting.caucho.HessianServiceExporter">
    		<property name="service" ref="helloService"></property>
    		<property name="serviceInterface" value="com.yaoxun.spring4.hessian.HelloService"></property>
    	</bean>
    	
    </beans>

启动服务器，请求

http://localhost:8080/spring4/hello.h

出现：

# HTTP Status 405 - HessianServiceExporter only supports POST requests #

表示配置成功

\-------------------------------------------------------------------------以下代码是他人编写的------------------------------------------------------------------------------------------------

6、客户端代码

hessian-client.xml

<?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     xsi:schemaLocation="http://www.springframework.org/schema/beans 
     5         http://www.springframework.org/schema/beans/spring-beans.xsd
     6         http://www.springframework.org/schema/context 
     7         http://www.springframework.org/schema/context/spring-context.xsd">
     8 
     9     <bean id="hessianClient"
    10         class="org.springframework.remoting.caucho.HessianProxyFactoryBean">
    11         <property name="serviceUrl">
    12             <value>http://localhost:8080/spring-mvc4-rest/hessian/service</value>
    13         </property>
    14         <property name="serviceInterface">
    15             <value>com.cnblogs.yjmyzz.service.hessian.HelloService</value>
    16         </property>
    17     </bean>
    18 
    19 </beans>

调用示例

package com.cnblogs.yjmyzz.test;
     2 import java.net.MalformedURLException;
     3 
     4 import org.junit.Test;
     5 import org.springframework.context.ApplicationContext;
     6 import org.springframework.context.support.ClassPathXmlApplicationContext;
     7 
     8 import com.cnblogs.yjmyzz.service.hessian.HelloService;
     9 
    10 public class HessianServiceTest {    
    11     @SuppressWarnings("resource")
    12     @Test
    13     public void testService() throws MalformedURLException {
    14         ApplicationContext context = new ClassPathXmlApplicationContext(
    15                 "hessian-client.xml");
    16         HelloService hello = (HelloService) context.getBean("hessianClient");
    17         System.out.println(hello.helloWorld("jimmy.yang"));
    18     }
    19 }