dubbo框架搭建

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一. 在Linux上安装Zookeeper与dubbo-admin管理页
http://doc.okbase.net/congcong68/archive/112508.html
dubbo官网 http://dubbo.io/

二.在工程中使用dubbo
我使用的是当当网的dubbox, https://github.com/dangdangdotcom/dubbox, 下载源码后安装在maven本地仓库。同时dubbo-admin的工程也要安装dubbox的，不然项目中会不断报错。
1. maven中引用dubbo相关的jar

<zkclient_version>0.1</zkclient_version> <zookeeper_version>3.4.6</zookeeper_version>  <dubbo_version>3.0.1</dubbo_version>    <dependency>                <groupId>com.github.sgroschupf</groupId>                <artifactId>zkclient</artifactId>                <version>${zkclient_version}</version>            </dependency>            <dependency>                <groupId>org.apache.zookeeper</groupId>                <artifactId>zookeeper</artifactId>                <version>${zookeeper_version}</version>            </dependency>            <dependency>                <groupId>com.alibaba</groupId>                <artifactId>dubbo</artifactId>                <version>${dubbo_version}</version>            </dependency>

2. 提供者中与spring集成      提供者中使用dubbo-container提供微服务，通过maven打包，把项目打成 tar包的形势进行linux下的部署         1. 只需要把spring的配置文件放在src\main\resources\spring 路径下，系统可以自动加载所有的spring配置文件         2.  \src\main\assembly\conf\dubbo.propertie 路径下进行相关dubbo属性的配置， 下面是dubbo.properties文件

dubbo.container=log4j,springdubbo.application.name=out-collection-servicedubbo.application.owner=#dubbo.registry.address=multicast://224.5.6.7:1234#注册中心地址dubbo.registry.address=zookeeper://10.0.4.81:2181#dubbo.registry.address=redis://127.0.0.1:6379#dubbo.registry.address=dubbo://127.0.0.1:9090#注册中心缓存文件，缓存提供者的路径dubbo.registry.file=/home/dubbo/registry/out-collection-service.properties#通过注册中心发现监控中心服务dubbo.monitor.protocol=registry#协议名dubbo.protocol.name=dubbo#服务的端口dubbo.protocol.port=20850#负载均衡的策略dubbo.service.loadbalance=roundrobin

      3. spring目录下的dubbo提供者配置 dubbo-provider.xml， 这里面的配置的优先级要高于dubbo.properties文件

<beans xmlns="http://www.springframework.org/schema/beans"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:mvc="http://www.springframework.org/schema/mvc"     xmlns:context="http://www.springframework.org/schema/context"    xmlns:aop="http://www.springframework.org/schema/aop"     xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:task="http://www.springframework.org/schema/task"     xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"    xsi:schemaLocation="http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans-4.2.xsd         http://www.springframework.org/schema/mvc         http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd         http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context-4.2.xsd         http://www.springframework.org/schema/aop         http://www.springframework.org/schema/aop/spring-aop-4.2.xsd         http://www.springframework.org/schema/tx         http://www.springframework.org/schema/tx/spring-tx-4.2.xsd        http://www.springframework.org/schema/task           http://www.springframework.org/schema/task/spring-task-4.2.xsd        http://code.alibabatech.com/schema/dubbo                http://code.alibabatech.com/schema/dubbo/dubbo.xsd">    <!-- 提供方应用名称信息，这个相当于起一个名字，我们dubbo管理页面比较清晰是哪个应用暴露出来的 -->    <dubbo:application name="out-collection-service" />    <!-- 使用zookeeper注册中心暴露服务地址 -->    <dubbo:registry address="zookeeper://10.0.4.81:2181" protocol="zookeeper" />    <!-- 用dubbo协议在20880端口暴露服务 -->    <dubbo:protocol name="dubbo" serialization="kryo" port="20880" />    <!-- 声明需要暴露的服务接口 registry="N/A" -->    <dubbo:service interface="com.xx.XXService" ref="XXService"  /></beans>

启动dubbo服务， eclipse下只需要在main方法下调用如下代码即可

public class TestContainer {    public static void main(String[] args) {        com.alibaba.dubbo.container.Main.main(args);    }}

打包dubbo服务，使用mavn-assembly-plugin插件进行打包
在src/main/assembly路径下加入assembly.xml文件如下

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"          xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2          http://maven.apache.org/xsd/assembly-1.1.2.xsd">    <id>assembly</id>    <formats>        <format>tar.gz</format>    </formats>    <includeBaseDirectory>true</includeBaseDirectory>    <fileSets>        <fileSet>            <directory>${project.build.directory}/dubbo/META-INF/assembly/bin</directory>            <outputDirectory>bin</outputDirectory>            <fileMode>0755</fileMode>        </fileSet>        <fileSet>            <directory>src/main/assembly/conf</directory>            <outputDirectory>conf</outputDirectory>            <fileMode>0644</fileMode>        </fileSet>        <fileSet>            <directory>src/main/resources</directory>            <outputDirectory>conf</outputDirectory>            <fileMode>0644</fileMode>        </fileSet>    </fileSets>    <dependencySets>        <dependencySet>            <outputDirectory>lib</outputDirectory>        </dependencySet>    </dependencySets></assembly>

pom.xml文件加入如下配置

<plugins>            <plugin>                <artifactId>maven-dependency-plugin</artifactId>                <executions>                    <execution>                        <id>unpack</id>                        <phase>package</phase>                        <goals>                            <goal>unpack</goal>                        </goals>                        <configuration>                            <artifactItems>                                <artifactItem>                                    <groupId>com.alibaba</groupId>                                    <artifactId>dubbo</artifactId>                                    <outputDirectory>${project.build.directory}/dubbo</outputDirectory>                                    <includes>META-INF/assembly/**</includes>                                </artifactItem>                            </artifactItems>                        </configuration>                    </execution>                </executions>            </plugin>            <plugin>                <artifactId>maven-assembly-plugin</artifactId>                <version>2.6</version>                <configuration>                    <descriptor>src/main/assembly/assembly.xml</descriptor>                </configuration>                <executions>                    <execution>                        <id>make-assembly</id>                        <phase>package</phase>                        <goals>                            <goal>single</goal>                        </goals>                    </execution>                </executions>            </plugin>            <!-- 打包排除配置文件 -->            <plugin>                <groupId>org.apache.maven.plugins</groupId>                <artifactId>maven-jar-plugin</artifactId>                <configuration>                    <excludes>                        <include>**/*.properties</include>                        <include>**/*.xml</include>                    </excludes>                </configuration>            </plugin>        </plugins>

使用mvn package命令就可以把工程打成tar包，解压后文件结构如下图

配置文件都会被打到conf下，服务的所有代码都会以jar包放在lib下，运行bin下边的starh.bat即可直接启动服务。

消费者中与spring集成
在消费者中，还是使用传统web项目的形式。要使用提供者的服务只需要两步。
1.把提供者对应的jar包引入到工程中，当然同时也要引入dubbo对应的jar
2. 加入spring配置 consumer.xml，在applicationContext.xml引入consumer.xml.

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"    xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task"    xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"    xsi:schemaLocation="http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans-4.2.xsd         http://www.springframework.org/schema/mvc         http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd         http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context-4.2.xsd         http://www.springframework.org/schema/aop         http://www.springframework.org/schema/aop/spring-aop-4.2.xsd         http://www.springframework.org/schema/tx         http://www.springframework.org/schema/tx/spring-tx-4.2.xsd        http://www.springframework.org/schema/task           http://www.springframework.org/schema/task/spring-task-4.2.xsd        http://code.alibabatech.com/schema/dubbo                http://code.alibabatech.com/schema/dubbo/dubbo.xsd">    <!-- 提供方应用名称信息，这个相当于起一个名字，我们dubbo管理页面比较清晰是哪个应用暴露出来的 -->    <dubbo:application name="XXX" />    <!-- 使用zookeeper注册中心暴露服务地址 -->    <dubbo:registry address="zookeeper://10.0.4.81:2181" file="/home/deploy/appservers/registry/xx.properties"/>     <dubbo:protocol name="dubbo" serialization="kryo" optimizer="com.touna.collection.SerializationOptimizerImpl" />    <!-- 声明需要暴露的服务接口 registry="N/A" -->    <dubbo:reference interface="com.xx.XXService" id=""/>    <!-- 全局设置 -->    <dubbo:consumer timeout="600000" check="false" /></beans>

    3, 在本地，与调本地服务一样注入service.

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