Hessian入门实例

最新推荐文章于 2019-09-17 03:12:59 发布

alvinIn

最新推荐文章于 2019-09-17 03:12:59 发布

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文章标签： hessian

本文链接：https://blog.youkuaiyun.com/qq_15914047/article/details/77869990

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本文介绍了如何从零开始创建一个Hessian服务。首先新建了一个Maven工程，接着引入了必要的Hessian jar包。配置完成后，启动服务并在浏览器中访问http://localhost:8080/hessian/hessian进行测试。

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1.新建maven工程

2.引入jar包

<dependency>
	<groupId>com.caucho</groupId>
	<artifactId>hessian</artifactId>
	<version>4.0.7</version>
</dependency>

3.编写服务端server

package com.nineclient.demo;

import com.nineclient.demo.model.Cat;

public interface BasicService {
	
	Cat sayCat();
	
	String getName();
	
	int getCount();

}

4.编写实现类

package com.nineclient.demo.impl;

import com.nineclient.demo.BasicService;
import com.nineclient.demo.model.Cat;

public class BasicServiceImpl implements BasicService{

	@Override
	public Cat sayCat() {
		return new Cat("Hello kity!");
	}

	@Override
	public String getName() {
		return "Hello beer!";
	}

	@Override
	public int getCount() {
		return 100;
	}

}

5.实现类里面补充一个model

package com.nineclient.demo.model;

import java.io.Serializable;

public class Cat implements Serializable{

	private static final long serialVersionUID = 6531696445894455539L;
	private String name;
	private int age;
	
	public Cat() {}
	public Cat(String name) {
		this.setName(name);
	}
	
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}

}

6.web.xml配置servlet

<servlet>  
	<!-- 配置 HessianServlet，Servlet的命名任意-->  
	<servlet-name>ServiceServlet</servlet-name>  
	<servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>  
	  
	<!-- 配置接口的具体实现类 ,param-name命名任意-->  
	<init-param>  
		<param-name>service-class</param-name>  
		<param-value>com.nineclient.demo.impl.BasicServiceImpl</param-value>  
	</init-param>  
</servlet>  
<!-- 映射 HessianServlet的访问URL地址-->  
<servlet-mapping>  
	<servlet-name>ServiceServlet</servlet-name>  
	<url-pattern>/hessian</url-pattern>  
</servlet-mapping>

7.启动服务后，在浏览器里面输入http://localhost:8080/hessian/hessian

8.测试代码

package com.nineclinet.demo.client;

import java.net.MalformedURLException;

import org.junit.Test;

import com.caucho.hessian.client.HessianProxyFactory;
import com.nineclient.demo.BasicService;
import com.nineclient.demo.model.Cat;

public class HessianHelper {
	
	
	@Test
	public void testBasicService() {
		String url = "http://localhost:8080/hessian/hessian";
		HessianProxyFactory factory = new HessianProxyFactory();
		BasicService service = null;
		try {
			service = (BasicService)factory.create(BasicService.class, url);
		} catch (MalformedURLException e) {
			e.printStackTrace();
		}
		
		String name = service.getName();
		int count = service.getCount();
		Cat cat =service.sayCat();
		System.out.println("name = " + name + "count = " + count + "cat name = " + cat.getName());
	}
	
	interface CatInf {
		Cat sayCat();
		
	}
	
	@Test
	public void testCatInf() {
		String url = "http://localhost:8080/hessian/hessian";
		HessianProxyFactory factory = new HessianProxyFactory();
		CatInf service = null;
		try {
			service = (CatInf)factory.create(CatInf.class, url);
		} catch (MalformedURLException e) {
			e.printStackTrace();
		}
		
		Cat cat =service.sayCat();
		System.out.println("cat name = " + cat.getName());
	}
	
	interface NameInf {
		String getName();
	}
	
	@Test
	public void testNameInf() {
		String url = "http://localhost:8080/hessian/hessian";
		HessianProxyFactory factory = new HessianProxyFactory();
		NameInf service = null;
		try {
			service = (NameInf)factory.create(NameInf.class, url);
		} catch (MalformedURLException e) {
			e.printStackTrace();
		}
		
		String name =service.getName();
		System.out.println("name = " + name);
	}
}

9.结果输出