dubbo的原理和客户端

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 
  3 <project xmlns="http://maven.apache.org/POM/4.0.0" 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   <modelVersion>4.0.0</modelVersion>
  6 
  7   <groupId>com.itheima</groupId>
  8   <artifactId>provider</artifactId>
  9   <version>1.0-SNAPSHOT</version>
 10   <packaging>war</packaging>
 11 
 12   <name>provider Maven Webapp</name>
 13   <!-- FIXME change it to the project‘s website -->
 14   <url>http://www.example.com</url>
 15 
 16   <properties>
 17     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 18     <maven.compiler.source>1.7</maven.compiler.source>
 19     <maven.compiler.target>1.7</maven.compiler.target>
 20   </properties>
 21 
 22   <dependencies>
 23     <dependency>
 24       <groupId>junit</groupId>
 25       <artifactId>junit</artifactId>
 26       <version>4.12</version>
 27     </dependency>
 28     <dependency>
 29       <groupId>org.springframework</groupId>
 30       <artifactId>spring-context</artifactId>
 31       <version>5.0.2.RELEASE</version>
 32     </dependency>
 33     <dependency>
 34       <groupId>org.springframework</groupId>
 35       <artifactId>spring-beans</artifactId>
 36       <version>5.0.2.RELEASE</version>
 37     </dependency>
 38     <dependency>
 39       <groupId>org.springframework</groupId>
 40       <artifactId>spring-webmvc</artifactId>
 41       <version>5.0.2.RELEASE</version>
 42     </dependency>
 43     <dependency>
 44       <groupId>org.springframework</groupId>
 45       <artifactId>spring-jdbc</artifactId>
 46       <version>5.0.2.RELEASE</version>
 47     </dependency>
 48     <dependency>
 49       <groupId>org.springframework</groupId>
 50       <artifactId>spring-aspects</artifactId>
 51       <version>4.2.4.RELEASE</version>
 52     </dependency>
 53     <dependency>
 54       <groupId>org.springframework.repo.org.springframework</groupId>
 55       <artifactId>spring-jms</artifactId>
 56       <version>5.0.5.RELEASE</version>
 57     </dependency>
 58     <dependency>
 59       <groupId>org.springframework</groupId>
 60       <artifactId>spring-context-support</artifactId>
 61       <version>5.0.2.RELEASE</version>
 62     </dependency>
 63     <dependency>
 64       <groupId>com.alibaba</groupId>
 65       <artifactId>dubbo</artifactId>
 66       <version>2.6.0</version>
 67     </dependency>
 68     <dependency>
 69       <groupId>org.apache.zookeeper</groupId>
 70       <artifactId>zookeeper</artifactId>
 71       <version>3.4.7</version>
 72     </dependency>
 73     <dependency>
 74       <groupId>com.github.sgroschupf</groupId>
 75       <artifactId>zkclient</artifactId>
 76       <version>0.1</version>
 77     </dependency>
 78     <dependency>
 79       <groupId>javassist</groupId>
 80       <artifactId>javassist</artifactId>
 81       <version>3.12.1.GA</version>
 82     </dependency>
 83     <dependency>
 84       <groupId>com.alibaba</groupId>
 85       <artifactId>fastjson</artifactId>
 86       <version>1.2.47</version>
 87     </dependency>
 88  </dependencies>
 89   <build>
 90     <plugins>
 91       <plugin>
 92         <groupId>org.apache.maven.plugins</groupId>
 93         <artifactId>maven-compiler-plugin</artifactId>
 94         <version>2.3.2</version>
 95         <configuration>
 96           <source>1.8</source>
 97           <target>1.8</target>
 98         </configuration>
 99       </plugin>
100       <plugin>
101         <groupId>org.apache.tomcat.maven</groupId>
102         <artifactId>tomcat7-maven-plugin</artifactId>
103         <configuration>
104           <!-- 指定端口 -->
105           <port>89</port>
106           <!-- 请求路径 -->
107           <path>/</path>
108         </configuration>
109       </plugin>
110     </plugins>
111   </build>
112 
113 </project>

 1 <!DOCTYPE web-app PUBLIC
 2  "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 3  "http://java.sun.com/dtd/web-app_2_3.dtd" >
 4 
 5 <web-app>
 6   <display-name>Archetype Created Web Application</display-name>
 7   <context-param>
 8     <param-name>contextConfigLocation</param-name>
 9     <param-value>classpath:applicationContext-service.xml</param-value>
10   </context-param>
11 
12 
13   <listener>
14     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
15   </listener>
16 </web-app>

1 package com.itheima.service;
2 
3 public interface HelloService {
4     public String sayHello(String name);
5 }

 1 package com.itheima.service.impl;
 2 
 3 import com.alibaba.dubbo.config.annotation.Service;
 4 import com.itheima.service.HelloService;
 5 @Service//发布服务用dubbo的service
 6 public class HelloServiceImpl implements HelloService {
 7     @Override
 8     public String sayHello (String name) {
 9         System.out.println("服务的sayhello方法调用了");
10         return "hello"+name;
11     }
12 }

 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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
 5        xmlns:aop="http://www.springframework.org/schema/aop" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 7 
 8     <dubbo:application name="provider"/>
 9     <dubbo:registry address="zookeeper://192.168.139.129:2181"/>
10     <dubbo:protocol name="dubbo" port="20880"></dubbo:protocol>
11     <dubbo:annotation package="com.itheima.service.impl"/>
12 </beans>

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 
  3 <project xmlns="http://maven.apache.org/POM/4.0.0" 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   <modelVersion>4.0.0</modelVersion>
  6 
  7   <groupId>com.itheima</groupId>
  8   <artifactId>consummmeerr</artifactId>
  9   <version>1.0-SNAPSHOT</version>
 10   <packaging>war</packaging>
 11 
 12   <name>consummmeerr Maven Webapp</name>
 13   <!-- FIXME change it to the project‘s website -->
 14   <url>http://www.example.com</url>
 15 
 16   <properties>
 17     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 18     <maven.compiler.source>1.7</maven.compiler.source>
 19     <maven.compiler.target>1.7</maven.compiler.target>
 20   </properties>
 21 
 22   <dependencies>
 23     <dependency>
 24       <groupId>junit</groupId>
 25       <artifactId>junit</artifactId>
 26       <version>4.12</version>
 27     </dependency>
 28     <dependency>
 29       <groupId>org.springframework</groupId>
 30       <artifactId>spring-context</artifactId>
 31       <version>5.0.2.RELEASE</version>
 32     </dependency>
 33     <dependency>
 34       <groupId>org.springframework</groupId>
 35       <artifactId>spring-beans</artifactId>
 36       <version>5.0.2.RELEASE</version>
 37     </dependency>
 38     <dependency>
 39       <groupId>org.springframework</groupId>
 40       <artifactId>spring-webmvc</artifactId>
 41       <version>5.0.2.RELEASE</version>
 42     </dependency>
 43     <dependency>
 44       <groupId>org.springframework</groupId>
 45       <artifactId>spring-jdbc</artifactId>
 46       <version>5.0.2.RELEASE</version>
 47     </dependency>
 48     <dependency>
 49       <groupId>org.springframework</groupId>
 50       <artifactId>spring-aspects</artifactId>
 51       <version>4.2.4.RELEASE</version>
 52     </dependency>
 53     <dependency>
 54       <groupId>org.springframework.repo.org.springframework</groupId>
 55       <artifactId>spring-jms</artifactId>
 56       <version>5.0.5.RELEASE</version>
 57     </dependency>
 58     <dependency>
 59       <groupId>org.springframework</groupId>
 60       <artifactId>spring-context-support</artifactId>
 61       <version>5.0.2.RELEASE</version>
 62     </dependency>
 63     <dependency>
 64       <groupId>com.alibaba</groupId>
 65       <artifactId>dubbo</artifactId>
 66       <version>2.6.0</version>
 67     </dependency>
 68     <dependency>
 69       <groupId>org.apache.zookeeper</groupId>
 70       <artifactId>zookeeper</artifactId>
 71       <version>3.4.7</version>
 72     </dependency>
 73     <dependency>
 74       <groupId>com.github.sgroschupf</groupId>
 75       <artifactId>zkclient</artifactId>
 76       <version>0.1</version>
 77     </dependency>
 78     <dependency>
 79       <groupId>javassist</groupId>
 80       <artifactId>javassist</artifactId>
 81       <version>3.12.1.GA</version>
 82     </dependency>
 83     <dependency>
 84       <groupId>com.alibaba</groupId>
 85       <artifactId>fastjson</artifactId>
 86       <version>1.2.47</version>
 87     </dependency>
 88   </dependencies>
 89   <build>
 90     <plugins>
 91       <plugin>
 92         <groupId>org.apache.maven.plugins</groupId>
 93         <artifactId>maven-compiler-plugin</artifactId>
 94         <version>2.3.2</version>
 95         <configuration>
 96           <source>1.8</source>
 97           <target>1.8</target>
 98         </configuration>
 99       </plugin>
100       <plugin>
101         <groupId>org.apache.tomcat.maven</groupId>
102         <artifactId>tomcat7-maven-plugin</artifactId>
103         <configuration>
104           <!-- 指定端口 -->
105           <port>82</port>
106           <!-- 请求路径 -->
107           <path>/</path>
108         </configuration>
109       </plugin>
110     </plugins>
111   </build>
112 </project>

 1 <!DOCTYPE web-app PUBLIC
 2         "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 3         "http://java.sun.com/dtd/web-app_2_3.dtd" >
 4 <web-app>
 5   <display-name>Archetype Created Web Application</display-name>
 6   <servlet>
 7     <servlet-name>springmvc</servlet-name>
 8     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 9     <!-- 指定加载的配置文件 ，通过参数contextConfigLocation加载 -->
10     <init-param>
11       <param-name>contextConfigLocation</param-name>
12       <param-value>classpath:applicationContext-web.xml</param-value>
13     </init-param>
14     <load-on-startup>1</load-on-startup>
15   </servlet>
16   <servlet-mapping>
17     <servlet-name>springmvc</servlet-name>
18     <url-pattern>*.do</url-pattern>
19   </servlet-mapping>
20 </web-app>

1 package com.itheima.service;
2 
3 public interface HelloService {
4     public String sayHello (String name);
5 }

 1 package com.itheima.controller;
 2 
 3 import com.alibaba.dubbo.config.annotation.Reference;
 4 import com.itheima.service.HelloService;
 5 import org.springframework.stereotype.Controller;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.ResponseBody;
 8 
 9 
10 @Controller
11 @RequestMapping("/hello")
12 
13 public class DubboController {
14    @Reference
15     private HelloService helloService;
16     @RequestMapping("/sayHello")
17     @ResponseBody
18 public String sayHello(){
19         String s = helloService.sayHello("tom");
20         System.out.println("我是controller的方法获得结果"+s);
21         return "hello"+s;
22     }
23 }

 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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
 5        xmlns:aop="http://www.springframework.org/schema/aop" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 7 
 8     <!-- 当前应用名称，用于注册中心计算应用间依赖关系，注意：消费者和提供者应用名不要一样 -->
 9     <dubbo:application name="dubbodemo-consumer" />
10     <!-- 连接服务注册中心zookeeper ip为zookeeper所在服务器的ip地址-->
11     <dubbo:registry address="zookeeper://192.168.139.129:2181"/>
12     <!-- 扫描的方式暴露接口  -->
13     <dubbo:annotation package="com.itheima.controller" />
14 </beans>

 1 package com.itheima.controller;
 2 
 3 import com.alibaba.dubbo.config.annotation.Reference;
 4 import com.itheima.service.HelloService;
 5 import org.springframework.stereotype.Controller;
 6 import org.springframework.web.bind.annotation.RequestMapping;
 7 import org.springframework.web.bind.annotation.ResponseBody;
 8 
 9 
10 @Controller
11 @RequestMapping("/hello")
12 
13 public class DubboController {
14    @Reference
15     private HelloService helloService;
16     @RequestMapping("/sayHello")
17     @ResponseBody
18 public String sayHello(){
19         String s = helloService.sayHello("tom");
20         System.out.println("我是controller的方法获得结果"+s);
21         return "hello"+s;
22     }
23 }

 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:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
 5        xmlns:aop="http://www.springframework.org/schema/aop" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
 7 
 8     <!-- 当前应用名称，用于注册中心计算应用间依赖关系，注意：消费者和提供者应用名不要一样 -->
 9     <dubbo:application name="dubbodemo-consumer" />
10     <!-- 连接服务注册中心zookeeper ip为zookeeper所在服务器的ip地址-->
11     <dubbo:registry address="zookeeper://192.168.139.129:2181"/>
12     <!-- 扫描的方式暴露接口  -->
13     <dubbo:annotation package="com.itheima.controller" />
14 </beans>