Hessian

    公司不同pool之间提供service都是通过hessian来开放接口的，个人觉得hessian的使用非常简单。做个demo如下：

0.首先创建web工程，并加载hessian.jar。

1.创建service，即我们通过它来提供接口：

1 public interface BasicService {
2
3     public void setServiceName(String serverName);
4
5     public String getServiceName();
6
7     public User createUser();
8
9 }

 

2.创建service实现：

01 public class BasicServiceImpl implements BasicService {
02
03     private String serviceName;
04
05     @Override
06     public void setServiceName(String serverName) {
07         this.serviceName = serverName;
08     }
09
10     @Override
11     public String getServiceName() {
12         return this.serviceName;
13     }
14
15     @Override
16     public User createUser() {
17         return new User("zhangsan", "123456");
18     }
19 }

3.创建需要通过hessian传递的对象（必须序列化）：

01 public class User implements Serializable {
02
03     private static final long serialVersionUID = 5792818254468116836L;
04
05     private String username;
06
07     private String password;
08
09     public User(String username, String password) {
10         this.username = username;
11         this.password = password;
12     }
13
14     public String getUsername() {
15         return username;
16     }
17
18     public void setUsername(String username) {
19         this.username = username;
20     }
21
22     public String getPassword() {
23         return password;
24     }
25
26     public void setPassword(String password) {
27         this.password = password;
28     }
29 }

4.配置web.xml:

01 <?xml version="1.0" encoding="UTF-8"?>
02 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://java.sun.com/xml/ns/javaee"xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
03   <display-name>HessianServer</display-name>
04
05   <servlet>
06     <servlet-name>basic</servlet-name>
07     <servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
08     <init-param>
09         <param-name>service-class</param-name>
10         <param-value>com.loujinhe.service.impl.BasicServiceImpl</param-value>
11     </init-param>
12   </servlet>
13
14   <servlet-mapping>
15     <servlet-name>basic</servlet-name>
16     <url-pattern>/basic</url-pattern>
17   </servlet-mapping>
18
19 </web-app>

 

5.创建测试用例：

01 import java.net.MalformedURLException;
02
03 import org.junit.Before;
04 import org.junit.Test;
05
06 import com.caucho.hessian.client.HessianProxyFactory;
07 import com.loujinhe.service.BasicService;
08
09
10 public class BasicServiceTest {
11
12     private BasicService basicService;
13
14     @Before
15     public void init() throws MalformedURLException {
16         HessianProxyFactory factory = new HessianProxyFactory();
17         String url = "http://localhost:8080/HessianServer/basic";
18         basicService = (BasicService)factory.create(BasicService.class, url);
19     }
20
21     @Test
22     public void testBasic() {
23         basicService.setServiceName("BasicService");
24         System.out.println(basicService.getServiceName());
25
26         System.out.println(basicService.createUser().getUsername());
27         System.out.println(basicService.createUser().getPassword());
28     }
29 }

6.启动服务器，运行测试用例，会得到如下结果：

 

BasicService

zhangsan

123456

来自：http://blog.csdn.net/loujinhe/article/details/8479238