Hessian 使用例子

一、协议包(数据对象需要实现序列化接口，可以用于服务端接口、客户端调用服务之用)

/**
 *
 */
package com.junge.demo.protocol.model;

import java.io.Serializable;

/**
 * @author Administrator
 *
 */
public class User implements Serializable {

    /**
     *
     */
    private static final long serialVersionUID = -8967262939434460765L;

    private Integer userid;
    private String username;

    public Integer getUserid() {
        return userid;
    }

    public void setUserid(Integer userid) {
        this.userid = userid;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    @Override
    public String toString() {
        return "User [userid=" + userid + ", username=" + username + "]";
    }
}

/**
 *
 */
package com.junge.demo.protocol.service;

import com.junge.demo.protocol.model.User;

/**
 * @author Administrator
 *
 */
public interface UserService {

    Integer addUser(User user);

    void delUser(Integer userid);

    void modifyUser(User user);

    User getUserByUserId(Integer userid);
}

二、服务端(需要建立web项目)

/**
 *
 */
package com.junge.spring.hessian.service.impl;

import com.junge.demo.protocol.model.User;
import com.junge.demo.protocol.service.UserService;

/**
 * @author Administrator
 *
 */
public class UserServiceImpl implements UserService {

    public Integer addUser(User user) {
        System.out.println("addUser:" + user);
        return user.getUserid();
    }

    public void delUser(Integer userid) {
        System.out.println("delUser,userid=" + userid);

    }

    public void modifyUser(User user) {
        System.out.println("modifyUser:" + user);

    }

    public User getUserByUserId(Integer userid) {
        System.out.println("getUserByUserId,userid={}" + userid);

        User user = new User();
        user.setUserid(userid);
        user.setUsername("张三");
        return user;
    }

}

web.xml配置

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
    <display-name>Archetype Created Web Application</display-name>
    <servlet>
        <servlet-name>CalServiceServlet</servlet-name>
        <servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
        <init-param>
            <param-name>home-class</param-name>
            <param-value>com.junge.spring.hessian.service.impl.CalServiceImpl</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>CalServiceServlet</servlet-name>
        <url-pattern>/calService</url-pattern>
    </servlet-mapping>

    <servlet>
        <servlet-name>UserServiceServlet</servlet-name>
        <servlet-class>com.caucho.hessian.server.HessianServlet</servlet-class>
        <init-param>
            <param-name>home-class</param-name>
            <param-value>com.junge.spring.hessian.service.impl.UserServiceImpl</param-value>
        </init-param>
    </servlet>
    <servlet-mapping>
        <servlet-name>UserServiceServlet</servlet-name>
        <url-pattern>/userService</url-pattern>
    </servlet-mapping>
</web-app>

三、客户端

/**
 *
 */
package com.junge.demo.hessian;

import com.caucho.hessian.client.HessianProxyFactory;
import com.junge.demo.protocol.model.User;
import com.junge.demo.protocol.service.UserService;

/**
 * @author Administrator
 *
 */
public class HessianClient {

    /**
     * @param args
     */
    public static void main(String[] args) {
        /*
         * try { String url = "http://localhost:8080/hessian/calService";
         * HessianProxyFactory factory = new HessianProxyFactory();
         * factory.setOverloadEnabled(true); CalService basic = (CalService)
         * factory.create(CalService.class, url); System.out.println(basic.add(3, 4));
         * System.out.println(basic.sub(3, 0)); } catch (Exception e) {
         * e.printStackTrace(); }
         */

        addUserBatch();
    }

    public static void addUserBatch() {

        Long btime = System.currentTimeMillis();

        String url = "http://localhost:8080/hessian/userService";
        HessianProxyFactory factory = new HessianProxyFactory();
        factory.setOverloadEnabled(true);

        try {
            UserService basic = (UserService) factory.create(UserService.class, url);
            for (int i = 0; i < 5000; i++) {

                new Thread(new OperUser(basic)).start();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        Long etime = System.currentTimeMillis();

        System.out.println(etime - btime);
    }

}

class OperUser implements Runnable {
    private UserService userService;

    public OperUser(UserService userService) {
        this.userService = userService;
    }

    @Override
    public void run() {
        // 增加、详情、修改、删除
        User user = new User();
        user.setUserid(1);
        user.setUsername("名字");
        userService.addUser(user);

        User user2 = userService.getUserByUserId(1);

        userService.modifyUser(user2);

        userService.delUser(user2.getUserid());

    }
}