分布式服务框架 dubbo/dubbox 入门示例

  1. 云栖社区>
  2. 博客>
  3. 正文

分布式服务框架 dubbo/dubbox 入门示例

杨俊明 2015-06-29 14:05:00 浏览862

dubbo是一个分布式的服务架构,可直接用于生产环境作为SOA服务框架。

官网首页:http://dubbo.io/ ,官方用户指南 http://dubbo.io/User+Guide-zh.htm上面的几张图画得不错,完全可以当做SOA架构的学习资料

淘宝将这个项目开源出来以后,得到了不少同行的支持,包括:

当当网的扩展版本dubboxhttps://github.com/dangdangdotcom/dubbox

京东的扩展版本jd-hydra: http://www.oschina.net/p/jd-hydra

不过,略有遗憾的是,据说在淘宝内部,dubbo由于跟淘宝另一个类似的框架HSF(非开源)有竞争关系,导致dubbo团队已经解散(参见http://www.oschina.net/news/55059/druid-1-0-9 中的评论),反到是当当网的扩展版本仍在持续发展,墙内开花墙外香。

不管如何,能在阿里、当当、京东这些大型网站正式使用的框架,总不至于差到哪里去。

本文下面的示例均基于当当的dubbox版本,由于dubbox并没向maven提交编译后的jar包,所以只能从github clone代码到本地编译得到jar包。

 

编译及测试步骤:(以下步骤全在windows环境中完成)

1. 本机先安装github on Windows的客户端,将在path路径中,把git.exe加进去

2. 命令行下 git clone https://github.com/dangdangdotcom/dubbox 把代码拉到本地

3. mvn install -Dmaven.test.skip=true 跳过测试编译

4. 在本机安装一个zookeeper,参考zoo.cfg如下:

tickTime=2000
initLimit=10
syncLimit=5
dataDir=D:/java/zookeeper-3.4.6/data
dataLogDir=D:/java/zookeeper-3.4.6/log
clientPort=2181
server.1=localhost:2287:3387

然后输入 bin/zkServer.cmd 启用zookeeper

5. intellij Idea中导入源码

6. 运行 \dubbox\dubbo-demo\dubbo-demo-provider\src\test\java\com\alibaba\dubbo\demo\provider\DemoProvider.java 

把服务提供方跑起来,成功后,可以在ZK里,用 ls / 看下,会发现zk里多出了一个dubbo的节点,所有服务全注册在这里了

7. 运行\dubbox\dubbo-demo\dubbo-demo-consumer\src\test\java\com\alibaba\dubbo\demo\consumer\DemoConsumer.java

服务消费方调用测试,可以看console里的输出

8. 运行\dubbox\dubbo-demo\dubbo-demo-consumer\src\test\java\com\alibaba\dubbo\demo\consumer\RestClient.java

跑一下rest调用

9. 浏览器访问 http://localhost:8888/services/users/100.xml 或 http://localhost:8888/services/users/100.json

 

dubbox官方的示例,虽然已经很简单了,但是对于初次接触的人来讲,仍然略显复杂,下面的代码在其基础上简化了一下:

一、先定义服务接口及传输对象DTO

项目结构如下

代码:

User.java

package yjmyzz.dubbo.demo.api;
import org.codehaus.jackson.annotate.JsonProperty;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import java.io.Serializable;

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class User implements Serializable {

    @NotNull
    @Min(1L)
    private Long id;

    @JsonProperty("username")
    @XmlElement(name = "username")
    @NotNull
    @Size(min = 6, max = 50)
    private String name;

    public User() {
    }

    public User(Long id, String name) {
        this.id = id;
        this.name = name;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "User (" +
                "id=" + id +
                ", name='" + name + '\'' +
                ')';
    }
}

UserService.java

package yjmyzz.dubbo.demo.api;

public interface UserService {
    User getUser(Long id);
}

UserRestService.java

package yjmyzz.dubbo.demo.api;

import javax.validation.constraints.Min;

public interface UserRestService {
    User getUser(@Min(value = 1L, message = "User ID must be greater than 1") Long id);
}

pom.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <project xmlns="http://maven.apache.org/POM/4.0.0"
 3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 5 
 6     <modelVersion>4.0.0</modelVersion>
 7 
 8     <groupId>com.cnblogs.yjmyzz</groupId>
 9     <artifactId>dubbo-hello-api</artifactId>
10     <version>0.1</version>
11 
12     <dependencies>
13 
14         <dependency>
15             <groupId>com.alibaba</groupId>
16             <artifactId>dubbo</artifactId>
17             <version>2.8.4</version>
18         </dependency>
19 
20         <dependency>
21             <groupId>javax.validation</groupId>
22             <artifactId>validation-api</artifactId>
23             <version>1.0.0.GA</version>
24         </dependency>
25 
26         <dependency>
27             <groupId>javax.annotation</groupId>
28             <artifactId>javax.annotation-api</artifactId>
29             <version>1.2</version>
30         </dependency>
31 
32         <dependency>
33             <groupId>org.codehaus.jackson</groupId>
34             <artifactId>jackson-mapper-asl</artifactId>
35             <version>1.9.12</version>
36         </dependency>
37 
38     </dependencies>
39 </project>
View Code

 

二、定义服务生产者(即:服务接口的实现方)

UserServiceImpl.java

package yjmyzz.dubbo.demo.provider;

import yjmyzz.dubbo.demo.api.User;
import yjmyzz.dubbo.demo.api.UserService;

public class UserServiceImpl implements UserService {

    public User getUser(Long id) {
        return new User(id, "username" + id);
    }
}

UserRestServiceImpl.java

package yjmyzz.dubbo.demo.provider;

import com.alibaba.dubbo.rpc.RpcContext;
import com.alibaba.dubbo.rpc.protocol.rest.support.ContentType;
import yjmyzz.dubbo.demo.api.User;
import yjmyzz.dubbo.demo.api.UserRestService;
import yjmyzz.dubbo.demo.api.UserService;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;

@Path("users")
@Consumes({MediaType.APPLICATION_JSON, MediaType.TEXT_XML})
@Produces({ContentType.APPLICATION_JSON_UTF_8, ContentType.TEXT_XML_UTF_8})
public class UserRestServiceImpl implements UserRestService {

    private UserService userService;

    public void setUserService(UserService userService) {
        this.userService = userService;
    }

    @GET
    @Path("{id : \\d+}")
    public User getUser(@PathParam("id") Long id) {
        if (RpcContext.getContext().getRequest(HttpServletRequest.class) != null) {
            System.out.println("Client IP address from RpcContext: " + RpcContext.getContext().getRequest(HttpServletRequest.class).getRemoteAddr());
        }
        if (RpcContext.getContext().getResponse(HttpServletResponse.class) != null) {
            System.out.println("Response object from RpcContext: " + RpcContext.getContext().getResponse(HttpServletResponse.class));
        }
        return userService.getUser(id);
    }
}

DemoProvider.java

package yjmyzz.dubbo.demo.provider;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import java.io.IOException;

public class DemoProvider {
    public static void main(String[] args) throws IOException {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("classpath*:META-INF/spring/*.xml");
        context.start();
        System.out.println("服务已经启动...");
        System.in.read();
    }
}

配置文件:resources\META-INF\spring\dubbo-demo-provider.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 
 3 <beans xmlns="http://www.springframework.org/schema/beans"
 4        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5        xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
 6        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
 7     http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 8 
 9     <dubbo:application name="demo-provider" owner="programmer" organization="dubbox"/>
10 
11     <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
12 
13     <dubbo:protocol name="dubbo" serialization="kryo" optimizer="yjmyzz.dubbo.demo.api.SerializationOptimizerImpl"/>
14 
15     <!-- use tomcat server -->
16     <dubbo:protocol name="rest" port="8888" threads="500" contextpath="services" server="tomcat" accepts="500"
17                     extension="com.alibaba.dubbo.rpc.protocol.rest.support.LoggingFilter"/>
18 
19 
20     <dubbo:service interface="yjmyzz.dubbo.demo.api.UserService" ref="userService" protocol="dubbo" />
21 
22     <dubbo:service interface="yjmyzz.dubbo.demo.api.UserRestService" ref="userRestService" protocol="rest"  validation="true"/>
23 
24     <bean id="userService" class="yjmyzz.dubbo.demo.provider.UserServiceImpl"/>
25 
26     <bean id="userRestService" class="yjmyzz.dubbo.demo.provider.UserRestServiceImpl">
27         <property name="userService" ref="userService"/>
28     </bean>
29 
30 
31 </beans>
View Code

pom.xml

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <project xmlns="http://maven.apache.org/POM/4.0.0"
  3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5 
  6     <modelVersion>4.0.0</modelVersion>
  7 
  8     <groupId>com.cnblogs.yjmyzz</groupId>
  9     <artifactId>dubbo-hello-provider</artifactId>
 10     <version>0.1</version>
 11 
 12     <dependencies>
 13 
 14         <!--公用的服务接口-->
 15         <dependency>
 16             <groupId>com.cnblogs.yjmyzz</groupId>
 17             <artifactId>dubbo-hello-api</artifactId>
 18             <version>0.1</version>
 19         </dependency>
 20 
 21         <dependency>
 22             <groupId>com.alibaba</groupId>
 23             <artifactId>dubbo</artifactId>
 24             <version>2.8.4</version>
 25         </dependency>
 26 
 27         <dependency>
 28             <groupId>org.javassist</groupId>
 29             <artifactId>javassist</artifactId>
 30             <version>3.15.0-GA</version>
 31         </dependency>
 32 
 33         <dependency>
 34             <groupId>org.apache.mina</groupId>
 35             <artifactId>mina-core</artifactId>
 36             <version>1.1.7</version>
 37         </dependency>
 38 
 39         <dependency>
 40             <groupId>org.glassfish.grizzly</groupId>
 41             <artifactId>grizzly-core</artifactId>
 42             <version>2.1.4</version>
 43         </dependency>
 44 
 45         <dependency>
 46             <groupId>org.apache.httpcomponents</groupId>
 47             <artifactId>httpclient</artifactId>
 48             <version>4.2.1</version>
 49         </dependency>
 50 
 51         <dependency>
 52             <groupId>com.alibaba</groupId>
 53             <artifactId>fastjson</artifactId>
 54             <version>1.1.39</version>
 55         </dependency>
 56 
 57         <dependency>
 58             <groupId>com.thoughtworks.xstream</groupId>
 59             <artifactId>xstream</artifactId>
 60             <version>1.4.1</version>
 61         </dependency>
 62 
 63         <dependency>
 64             <groupId>org.apache.bsf</groupId>
 65             <artifactId>bsf-api</artifactId>
 66             <version>3.1</version>
 67         </dependency>
 68 
 69         <dependency>
 70             <groupId>org.apache.zookeeper</groupId>
 71             <artifactId>zookeeper</artifactId>
 72             <version>3.4.6</version>
 73         </dependency>
 74 
 75         <dependency>
 76             <groupId>com.github.sgroschupf</groupId>
 77             <artifactId>zkclient</artifactId>
 78             <version>0.1</version>
 79         </dependency>
 80 
 81         <dependency>
 82             <groupId>org.apache.curator</groupId>
 83             <artifactId>curator-framework</artifactId>
 84             <version>2.5.0</version>
 85         </dependency>
 86 
 87         <dependency>
 88             <groupId>com.googlecode.xmemcached</groupId>
 89             <artifactId>xmemcached</artifactId>
 90             <version>1.3.6</version>
 91         </dependency>
 92 
 93         <dependency>
 94             <groupId>org.apache.cxf</groupId>
 95             <artifactId>cxf-rt-frontend-simple</artifactId>
 96             <version>2.6.1</version>
 97         </dependency>
 98 
 99         <dependency>
100             <groupId>org.apache.cxf</groupId>
101             <artifactId>cxf-rt-transports-http</artifactId>
102             <version>2.6.1</version>
103         </dependency>
104 
105         <dependency>
106             <groupId>org.apache.thrift</groupId>
107             <artifactId>libthrift</artifactId>
108             <version>0.8.0</version>
109         </dependency>
110 
111         <dependency>
112             <groupId>com.caucho</groupId>
113             <artifactId>hessian</artifactId>
114             <version>4.0.7</version>
115         </dependency>
116 
117         <dependency>
118             <groupId>javax.servlet</groupId>
119             <artifactId>javax.servlet-api</artifactId>
120             <version>3.1.0</version>
121         </dependency>
122 
123         <dependency>
124             <groupId>org.mortbay.jetty</groupId>
125             <artifactId>jetty</artifactId>
126             <version>6.1.26</version>
127             <exclusions>
128                 <exclusion>
129                     <groupId>org.mortbay.jetty</groupId>
130                     <artifactId>servlet-api</artifactId>
131                 </exclusion>
132             </exclusions>
133         </dependency>
134 
135         <dependency>
136             <groupId>log4j</groupId>
137             <artifactId>log4j</artifactId>
138             <version>1.2.16</version>
139         </dependency>
140 
141         <dependency>
142             <groupId>org.slf4j</groupId>
143             <artifactId>slf4j-api</artifactId>
144             <version>1.6.2</version>
145         </dependency>
146 
147         <dependency>
148             <groupId>redis.clients</groupId>
149             <artifactId>jedis</artifactId>
150             <version>2.1.0</version>
151         </dependency>
152 
153         <dependency>
154             <groupId>javax.validation</groupId>
155             <artifactId>validation-api</artifactId>
156             <version>1.0.0.GA</version>
157         </dependency>
158 
159         <dependency>
160             <groupId>org.hibernate</groupId>
161             <artifactId>hibernate-validator</artifactId>
162             <version>4.2.0.Final</version>
163         </dependency>
164 
165         <dependency>
166             <groupId>javax.cache</groupId>
167             <artifactId>cache-api</artifactId>
168             <version>0.4</version>
169         </dependency>
170 
171         <dependency>
172             <groupId>org.jboss.resteasy</groupId>
173             <artifactId>resteasy-jaxrs</artifactId>
174             <version>3.0.7.Final</version>
175         </dependency>
176 
177         <dependency>
178             <groupId>org.jboss.resteasy</groupId>
179             <artifactId>resteasy-client</artifactId>
180             <version>3.0.7.Final</version>
181         </dependency>
182 
183         <dependency>
184             <groupId>org.jboss.resteasy</groupId>
185             <artifactId>resteasy-netty</artifactId>
186             <version>3.0.7.Final</version>
187         </dependency>
188 
189         <dependency>
190             <groupId>org.jboss.resteasy</groupId>
191             <artifactId>resteasy-jdk-http</artifactId>
192             <version>3.0.7.Final</version>
193         </dependency>
194 
195         <dependency>
196             <groupId>org.jboss.resteasy</groupId>
197             <artifactId>resteasy-jackson-provider</artifactId>
198             <version>3.0.7.Final</version>
199         </dependency>
200 
201         <dependency>
202             <groupId>org.jboss.resteasy</groupId>
203             <artifactId>resteasy-jaxb-provider</artifactId>
204             <version>3.0.7.Final</version>
205         </dependency>
206 
207         <dependency>
208             <groupId>org.apache.tomcat.embed</groupId>
209             <artifactId>tomcat-embed-core</artifactId>
210             <version>8.0.11</version>
211         </dependency>
212 
213         <dependency>
214             <groupId>org.apache.tomcat.embed</groupId>
215             <artifactId>tomcat-embed-logging-juli</artifactId>
216             <version>8.0.11</version>
217         </dependency>
218 
219         <dependency>
220             <groupId>com.esotericsoftware.kryo</groupId>
221             <artifactId>kryo</artifactId>
222             <version>2.24.0</version>
223         </dependency>
224 
225         <dependency>
226             <groupId>de.javakaffee</groupId>
227             <artifactId>kryo-serializers</artifactId>
228             <version>0.26</version>
229         </dependency>
230 
231         <dependency>
232             <groupId>de.ruedigermoeller</groupId>
233             <artifactId>fst</artifactId>
234             <version>1.55</version>
235         </dependency>
236 
237     </dependencies>
238 
239 
240 </project>
View Code

测试时,运行DemoProvider中的main方法即可启动服务,所有服务注册在ZooKeeper,层次结构类似下面这样:

/dubbo
  /dubbo/yjmyzz.dubbo.demo.api.UserRestService
    /dubbo/yjmyzz.dubbo.demo.api.UserRestService/providers
    /dubbo/yjmyzz.dubbo.demo.api.UserRestService/configurators
  /dubbo/yjmyzz.dubbo.demo.api.UserService
    /dubbo/yjmyzz.dubbo.demo.api.UserService/providers
    /dubbo/yjmyzz.dubbo.demo.api.UserService/configurators

 

三、服务消费方

 

DemoConsumer.java

package yjmyzz.dubbo.demo.consumer;

import org.springframework.context.support.ClassPathXmlApplicationContext;
import yjmyzz.dubbo.demo.api.UserService;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Response;

public class DemoConsumer {

    public static void main(String[] args) {
        final String port = "8888";

        //测试Rest服务
        getUser("http://localhost:" + port + "/services/users/1.json");
        getUser("http://localhost:" + port + "/services/users/1.xml");

        //测试常规服务
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("classpath*:META-INF/spring/*.xml");
        context.start();
        UserService userService = context.getBean(UserService.class);
        System.out.println(userService.getUser(1L));
    }


    private static void getUser(String url) {
        System.out.println("Getting user via " + url);
        Client client = ClientBuilder.newClient();
        WebTarget target = client.target(url);
        Response response = target.request().get();
        try {
            if (response.getStatus() != 200) {
                throw new RuntimeException("Failed with HTTP error code : " + response.getStatus());
            }
            System.out.println("Successfully got result: " + response.readEntity(String.class));
        } finally {
            response.close();
            client.close();
        }
    }
}

配置文件:resources\META-INF\spring\dubbo-hello-consumer.xml

 1 <?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"
 4        xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
 5        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
 6     http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 7 
 8     <dubbo:application name="demo-consumer" owner="programmer" organization="dubbox"/>
 9 
10     <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
11 
12     <dubbo:reference id="userRestService" interface="yjmyzz.dubbo.demo.api.UserRestService"/>
13 
14     <dubbo:reference id="userService" interface="yjmyzz.dubbo.demo.api.UserService"/>
15 
16 </beans>
View Code

pom.xml

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <project xmlns="http://maven.apache.org/POM/4.0.0"
  3          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5 
  6     <modelVersion>4.0.0</modelVersion>
  7 
  8     <groupId>com.cnblogs.yjmyzz</groupId>
  9     <artifactId>dubbo-hello-consumer</artifactId>
 10     <version>0.1</version>
 11 
 12 
 13     <dependencies>
 14         <!--公用的服务接口-->
 15         <dependency>
 16             <groupId>com.cnblogs.yjmyzz</groupId>
 17             <artifactId>dubbo-hello-api</artifactId>
 18             <version>0.1</version>
 19         </dependency>
 20 
 21 
 22         <dependency>
 23             <groupId>com.alibaba</groupId>
 24             <artifactId>dubbo</artifactId>
 25             <version>2.8.4</version>
 26         </dependency>
 27 
 28         <dependency>
 29             <groupId>org.javassist</groupId>
 30             <artifactId>javassist</artifactId>
 31             <version>3.15.0-GA</version>
 32         </dependency>
 33 
 34         <dependency>
 35             <groupId>org.apache.mina</groupId>
 36             <artifactId>mina-core</artifactId>
 37             <version>1.1.7</version>
 38         </dependency>
 39 
 40         <dependency>
 41             <groupId>org.glassfish.grizzly</groupId>
 42             <artifactId>grizzly-core</artifactId>
 43             <version>2.1.4</version>
 44         </dependency>
 45 
 46         <dependency>
 47             <groupId>org.apache.httpcomponents</groupId>
 48             <artifactId>httpclient</artifactId>
 49             <version>4.2.1</version>
 50         </dependency>
 51 
 52         <dependency>
 53             <groupId>com.alibaba</groupId>
 54             <artifactId>fastjson</artifactId>
 55             <version>1.1.39</version>
 56         </dependency>
 57 
 58         <dependency>
 59             <groupId>com.thoughtworks.xstream</groupId>
 60             <artifactId>xstream</artifactId>
 61             <version>1.4.1</version>
 62         </dependency>
 63 
 64         <dependency>
 65             <groupId>org.apache.bsf</groupId>
 66             <artifactId>bsf-api</artifactId>
 67             <version>3.1</version>
 68         </dependency>
 69 
 70         <dependency>
 71             <groupId>org.apache.zookeeper</groupId>
 72             <artifactId>zookeeper</artifactId>
 73             <version>3.4.6</version>
 74         </dependency>
 75 
 76         <dependency>
 77             <groupId>com.github.sgroschupf</groupId>
 78             <artifactId>zkclient</artifactId>
 79             <version>0.1</version>
 80         </dependency>
 81 
 82         <dependency>
 83             <groupId>org.apache.curator</groupId>
 84             <artifactId>curator-framework</artifactId>
 85             <version>2.5.0</version>
 86         </dependency>
 87 
 88         <dependency>
 89             <groupId>com.googlecode.xmemcached</groupId>
 90             <artifactId>xmemcached</artifactId>
 91             <version>1.3.6</version>
 92         </dependency>
 93 
 94         <dependency>
 95             <groupId>org.apache.cxf</groupId>
 96             <artifactId>cxf-rt-frontend-simple</artifactId>
 97             <version>2.6.1</version>
 98         </dependency>
 99 
100         <dependency>
101             <groupId>org.apache.cxf</groupId>
102             <artifactId>cxf-rt-transports-http</artifactId>
103             <version>2.6.1</version>
104         </dependency>
105 
106         <dependency>
107             <groupId>org.apache.thrift</groupId>
108             <artifactId>libthrift</artifactId>
109             <version>0.8.0</version>
110         </dependency>
111 
112         <dependency>
113             <groupId>com.caucho</groupId>
114             <artifactId>hessian</artifactId>
115             <version>4.0.7</version>
116         </dependency>
117 
118         <dependency>
119             <groupId>javax.servlet</groupId>
120             <artifactId>javax.servlet-api</artifactId>
121             <version>3.1.0</version>
122         </dependency>
123 
124         <dependency>
125             <groupId>org.mortbay.jetty</groupId>
126             <artifactId>jetty</artifactId>
127             <version>6.1.26</version>
128             <exclusions>
129                 <exclusion>
130                     <groupId>org.mortbay.jetty</groupId>
131                     <artifactId>servlet-api</artifactId>
132                 </exclusion>
133             </exclusions>
134         </dependency>
135 
136         <dependency>
137             <groupId>log4j</groupId>
138             <artifactId>log4j</artifactId>
139             <version>1.2.16</version>
140         </dependency>
141 
142         <dependency>
143             <groupId>org.slf4j</groupId>
144             <artifactId>slf4j-api</artifactId>
145             <version>1.6.2</version>
146         </dependency>
147 
148         <dependency>
149             <groupId>redis.clients</groupId>
150             <artifactId>jedis</artifactId>
151             <version>2.1.0</version>
152         </dependency>
153 
154         <dependency>
155             <groupId>javax.validation</groupId>
156             <artifactId>validation-api</artifactId>
157             <version>1.0.0.GA</version>
158         </dependency>
159 
160         <dependency>
161             <groupId>org.hibernate</groupId>
162             <artifactId>hibernate-validator</artifactId>
163             <version>4.2.0.Final</version>
164         </dependency>
165 
166         <dependency>
167             <groupId>javax.cache</groupId>
168             <artifactId>cache-api</artifactId>
169             <version>0.4</version>
170         </dependency>
171 
172         <dependency>
173             <groupId>org.jboss.resteasy</groupId>
174             <artifactId>resteasy-jaxrs</artifactId>
175             <version>3.0.7.Final</version>
176         </dependency>
177 
178         <dependency>
179             <groupId>org.jboss.resteasy</groupId>
180             <artifactId>resteasy-client</artifactId>
181             <version>3.0.7.Final</version>
182         </dependency>
183 
184         <dependency>
185             <groupId>org.jboss.resteasy</groupId>
186             <artifactId>resteasy-netty</artifactId>
187             <version>3.0.7.Final</version>
188         </dependency>
189 
190         <dependency>
191             <groupId>org.jboss.resteasy</groupId>
192             <artifactId>resteasy-jdk-http</artifactId>
193             <version>3.0.7.Final</version>
194         </dependency>
195 
196         <dependency>
197             <groupId>org.jboss.resteasy</groupId>
198             <artifactId>resteasy-jackson-provider</artifactId>
199             <version>3.0.7.Final</version>
200         </dependency>
201 
202         <dependency>
203             <groupId>org.jboss.resteasy</groupId>
204             <artifactId>resteasy-jaxb-provider</artifactId>
205             <version>3.0.7.Final</version>
206         </dependency>
207 
208         <dependency>
209             <groupId>org.apache.tomcat.embed</groupId>
210             <artifactId>tomcat-embed-core</artifactId>
211             <version>8.0.11</version>
212         </dependency>
213 
214         <dependency>
215             <groupId>org.apache.tomcat.embed</groupId>
216             <artifactId>tomcat-embed-logging-juli</artifactId>
217             <version>8.0.11</version>
218         </dependency>
219 
220         <dependency>
221             <groupId>com.esotericsoftware.kryo</groupId>
222             <artifactId>kryo</artifactId>
223             <version>2.24.0</version>
224         </dependency>
225 
226         <dependency>
227             <groupId>de.javakaffee</groupId>
228             <artifactId>kryo-serializers</artifactId>
229             <version>0.26</version>
230         </dependency>
231 
232         <dependency>
233             <groupId>de.ruedigermoeller</groupId>
234             <artifactId>fst</artifactId>
235             <version>1.55</version>
236         </dependency>
237     </dependencies>
238 
239 
240 </project>
View Code

其它注意事项:

dubbo构架中,zk充着“服务注册中心”的角色,所以生产者与消费者的xml配置文件中,都要配置zk地址,如果zk采用集群部署时,配置写法参考下面这样:

<dubbo:registry address="zookeeper://172.28.*.102:2181?backup=172.28.*.102:2182,172.28.*.102:2183"/>

 

dubbo还有一个管理界面,用于服务治理,包括启用/禁用服务,设置服务的路由规则(即:A地址的Consumer直接调用B机器的Provider,而不是由负载均衡算法分配)等等。

使用方法:将dubbo-admin这个项目编译成war包后,部署到jetty或其它兼容web server即可(当然要修改\WEB-INF\dubbo.properties里zk的地址)

部署完成后,访问管理界面时,默认用户名,密码均是root。 

另外dubbo-monitor项目用于性能监控,结合监控产生的数据,再套上一些图表展示的框架,可以用图表方式直观展示各种指标。

注:官网给出的dubbo-admin采用的webx架构有点老,而且除了淘宝之外,几乎没人在用,dubbo-monitor-simple界面也比较古朴,所以社区也人对其做了扩展,详情参考另一篇博客dubbox 的各种管理和监管

2016-02-25:dubbox依赖的spring虽然升级成3.x了,但版本还是有点低,spring都已经4.x了,为了方便我fork了一份,升级成spring 4.x 同时增加了log4j2的日志组件支持,详情见:dubbox升级spring到4.x及添加log4j2支持

 

参考文章:

http://shiyanjun.cn/archives/341.html

http://blog.csdn.net/wilsonke/article/details/39896595

http://www.dataguru.cn/thread-464197-1-1.html

http://www.iteye.com/magazines/103

http://dangdangdotcom.github.io/dubbox/rest.html

http://dangdangdotcom.github.io/dubbox/demo.html

http://blog.csdn.net/hzzhoushaoyu/article/details/43273099