Hessian

• hessian使用C/S方式，基于HTTP协议传输，使用Hessian二进制序列化。
• server端：
• 1.添加hessian的maven依赖

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

• 2.创建接口UserServer

public interface UserService {
    public String sayHello(String name);
}

• 3.实现类

public class UserServiceImpl implements UserService {
    @Override
    public String sayHello(String name) {
        return name+"调用了hessian服务端的服务被成功调用了";
    }
}

• 4.web.xml中配置HessianServlet

<servlet>
    <servlet-name>HessianServlet</servlet-name>
    <servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
    <init-param>
        <param-name>service-class</param-name>
        <param-value>com.stan.service.impl.UserServiceImpl</param-value>
    </init-param>
</servlet>

<servlet-mapping>
    <servlet-name>HessianServlet</servlet-name>
    <url-pattern>/hessianServlet</url-pattern>
</servlet-mapping>

• 5.添加tomcat7插件启动服务

<build>
    <plugins>
        <!-- tomcat插件控制 -->
        <plugin>
            <groupId>org.apache.tomcat.maven</groupId>
            <artifactId>tomcat7-maven-plugin</artifactId>
            <version>2.2</version>
            <configuration>
                <!--端口控制-->
                <port>8080</port>
                <!--项目路径控制意味着http://localhost:8080/-->
                <path>/</path>
                <!--编码-->
                <uriEncoding>UTF-8</uriEncoding>
            </configuration>
        </plugin>
    </plugins>
</build>

• 客户端：
• 1.添加hessian的maven依赖

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

• 2.创建跟server端相同的接口UserService（同上）
• 3.创建测试类测试

public class ClientTest {
    public static void main(String[] args) throws MalformedURLException {
        String url="http://localhost:8080/hessianServlet";
        HessianProxyFactory hessianProxyFactory = new HessianProxyFactory();
        UserService userService = (UserService) hessianProxyFactory.create(UserService.class, url);
        String sayHello = userService.sayHello("hessian客户端");
        System.out.println(sayHello);
    }
}