【初级教程】—Dubbo的配置及启动

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Tomcat+Dubbo安装

1.将tomcat的webapps目录下的所有文件清空，讲Dubbo管理控制台的程序dubbo-admin-2.5.3.war放

到webapps中，并且解压命名为ROOT。

2.配置dubbo.properties

将以下地址改为你Zookeeper注册的地址。前提：已经安装过Zookeeper。

dubbo.registry.address=zookeeper://192.168.137.2:2181

3.启动tomcat

浏览：192.168.137.2:8080出现以下界面

相应的配置已经配置好了，接下来开始写代码，看一下dubbo是怎么样在Zookeeper上注册服务的，在此举一个provider的例子：

建立一个maven项目，名称：Interfaces

建立一个类：

<span style="color:#666666;"> package com.demo.rpc;  public interface SpeakInterface {        String speak(People people); }</span>

再建一个maven项目，名称：provider

pom文件：

注意：这里在pom文件中引用interface

<project xmlns="http://maven.apache.org/POM/4.0.0"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">    <modelVersion>4.0.0</modelVersion>     <groupId>com.demo.dubbo</groupId>    <artifactId>dubbo-provider</artifactId>    <version>1.0-SNAPSHOT</version>     <dependencies>        <dependency>            <groupId>com.alibaba</groupId>            <artifactId>dubbo</artifactId>            <version>2.4.10</version>            <exclusions>                <exclusion>                    <groupId>org.springframework</groupId>                    <artifactId>spring</artifactId>                </exclusion>            </exclusions>        </dependency>        <dependency>            <groupId>com.101tec</groupId>            <artifactId>zkclient</artifactId>            <version>0.4</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context</artifactId>            <version>3.2.8.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-core</artifactId>            <version>3.2.8.RELEASE</version>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-beans</artifactId>            <version>3.2.8.RELEASE</version>        </dependency>        <dependency>            <groupId>com.jikexueyuan.rpc</groupId>            <artifactId>http-interfaces</artifactId>            <version>1.0.0-SNAPSHOT</version>        </dependency>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>4.12</version>            <scope>test</scope>        </dependency>        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-test</artifactId>            <version>3.2.8.RELEASE</version>            <scope>test</scope>        </dependency>             <dependency>    <groupId>org.apache.zookeeper</groupId>    <artifactId>zookeeper</artifactId>    <version>3.3.2</version>    </dependency>               </dependencies>     <build>        <plugins>                     <!-- 打包jar文件时，配置manifest文件，加入lib包的jar依赖 -->        <plugin>            <groupId>org.apache.maven.plugins</groupId>            <artifactId>maven-jar-plugin</artifactId>            <configuration>                <classesDirectory>target/classes/</classesDirectory><archive>        <manifest>                                   <mainClass>com.alibaba.dubbo.container.Main</mainClass>    <!-- 打包时 MANIFEST.MF文件不记录的时间戳版本 -->                        <useUniqueVersions>false</useUniqueVersions>        <addClasspath>true</addClasspath>                        <classpathPrefix>lib/</classpathPrefix>    </manifest>        <manifestEntries>            <Class-Path>.</Class-Path>        </manifestEntries>                </archive>            </configuration>        </plugin>        <plugin>    <groupId>org.apache.maven.plugins</groupId>        <artifactId>maven-dependency-plugin</artifactId>            <executions>                <execution>                    <id>copy-dependencies</id>                    <phase>package</phase>                    <goals>                        <goal>copy-dependencies</goal>                    </goals>                    <configuration>                        <type>jar</type>                        <includeTypes>jar</includeTypes>                        <outputDirectory>                            ${project.build.directory}/lib                        </outputDirectory>                    </configuration>                </execution>            </executions>        </plugin>    </plugins>   </build></project>

在src/main/resources路径下建立META-INF/spring文件夹，建立以下文件

Spring-context.xml文件

<beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:context="http://www.springframework.org/schema/context"       xsi:schemaLocation="          http://www.springframework.org/schema/beans          http://www.springframework.org/schema/beans/spring-beans-3.0.xsd       http://www.springframework.org/schema/context       http://www.springframework.org/schema/context/spring-context-3.0.xsd">      <context:component-scan base-package="com.demo.rpc.dubbo.impl" />      <context:annotation-config /> </beans>

Spring-dubbo-provider.xml文件

<beans xmlns="http://www.springframework.org/schema/beans"       xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xsi:schemaLocation="http://www.springframework.org/schema/beans          http://www.springframework.org/schema/beans/spring-beans-3.0.xsd       http://code.alibabatech.com/schema/dubbo       http://code.alibabatech.com/schema/dubbo/dubbo.xsd">     <dubbo:application name="demo-dubbo-provider"/>     <dubbo:registry id="zk1" address="192.168.137.2:2181" protocol="zookeeper"/>     <dubbo:protocol id="mydubbo" name="dubbo" port="20886"/>     <dubbo:provider registry="zk1" protocol="mydubbo"/><!--    <bean id="speakInterface" class="com.demo.rpc.dubbo.impl.SpeakInterfaceImpl" ></bean> -->    <dubbo:service interface="com.demo.rpc.SpeakInterface" ref="speakInterface"/>     <dubbo:monitor protocol="registry" /> </beans

SpeakInterfaceImpl类

import com.demo.rpc.GrowUpInterface;import com.demo.rpc.People;import com.demo.rpc.SpeakInterface;import org.springframework.stereotype.Component; import javax.annotation.Resource; /** * 2015/11/8 */@Component("speakInterface")public class SpeakInterfaceImpl implements SpeakInterface {  /*  @Resource    private GrowUpInterface growUpInterface;*/     public String speak(People people) {        return "dubbo return ";    }}

启动，出现如下界面，说明服务已经注册上

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