dubbo服务运行，也就是让生产服务的进程一直启动。如果生产者进程挂掉，也就不存在生产者，消费者不能进行消费。
Dubbo服务运行的三种方式如下:
1、使用Servlet容器运行（Tomcat、Jetty等） -不可用
缺点：增加复杂性（端口、管理）
浪费资源（内存）
需要占用多个端口和内存，这种方式是不可取的
2、自己建立Main方法类运行（Srping容器）
缺点：Dobbo本省提供的高级特性没用上，自己的启动类可能有缺陷
3、使用Dubbo框架提供的Main方法类来运行（Spring 容器） 建议使用
优点：框架本身提供（com.alibaba.dubbo.container.Main），可是现优雅关机（ShutdownHook）。
这个不存在缓存，生产者开启或者关闭之后dubbo-admin可以马上感知到。
下面测试方法2和方法3。
1.自建类发布服务:(简单-重要)
pom.xml如下:
<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>cn.qlq</groupId>
<artifactId>zookeper</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.8</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.12.0</version>
</dependency> <dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.6.6</version>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.20.0-GA</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.34.Final</version>
</dependency> <dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.2</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
</dependencies>
<build>
<!-- 配置了很多插件 -->
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
1.1 xml配置格式的发布
provider.xml
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dubbo="http://dubbo.apache.org/schema/dubbo" xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://dubbo.apache.org/schema/dubbo http://dubbo.apache.org/schema/dubbo/dubbo.xsd"> <!-- 提供方应用信息，用于计算依赖关系 -->
<dubbo:application name="hello-world-app">
<!-- 关闭QOS：Quality of Service -->
<dubbo:parameter key="qos.enable" value="false" />
<dubbo:parameter key="qos.accept.foreign.ip" value="true" />
<dubbo:parameter key="qos.port" value="2222" />
</dubbo:application> <!-- 使用multicast广播注册中心暴露服务地址,IP设置: 224.0.0.0 - 239.255.255.255 -->
<dubbo:registry address="zookeeper://127.0.0.1:2181" /> <!-- 用dubbo协议在20880端口暴露服务 -->
<dubbo:protocol name="dubbo" port="20880" /> <!-- 声明需要暴露的服务接口 -->
<dubbo:service interface="dubbo.DubboService" ref="demoService" />
<!-- 和本地bean一样实现服务 -->
<bean id="demoService" class="dubbo.DubboServiceImpl" />
</beans>
provider.java发布服务:
package dubbo; import java.io.IOException;
import java.util.concurrent.CountDownLatch; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Provider {
public static void main(String[] args) throws IOException, InterruptedException {
ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "provider.xml" });
context.start(); CountDownLatch countDownLatch = new CountDownLatch(1);
countDownLatch.await();
}
}
启动之后查看dubbo-admin管理界面:
2.API格式的发布
package dubbo.api; import java.util.concurrent.CountDownLatch; import com.alibaba.dubbo.config.ApplicationConfig;
import com.alibaba.dubbo.config.ProtocolConfig;
import com.alibaba.dubbo.config.RegistryConfig;
import com.alibaba.dubbo.config.ServiceConfig; import dubbo.DubboService;
import dubbo.DubboServiceImpl; public class Provider {
public static void main(String[] args) throws InterruptedException {
CountDownLatch countDownLatch = new CountDownLatch(1); // 服务实现
DubboService dubboService = new DubboServiceImpl(); // 当前应用配置
ApplicationConfig application = new ApplicationConfig();
application.setName("provider"); // 连接注册中心配置
RegistryConfig registry = new RegistryConfig();
registry.setAddress("zookeeper://127.0.0.1:2181");
registry.setUsername("aaa");
registry.setPassword("bbb"); // 服务提供者协议配置
ProtocolConfig protocol = new ProtocolConfig();
protocol.setName("dubbo");
protocol.setPort(12345);
protocol.setThreads(200); // 注意：ServiceConfig为重对象，内部封装了与注册中心的连接，以及开启服务端口
// 服务提供者暴露服务配置
ServiceConfig<DubboService> service = new ServiceConfig<DubboService>(); // 此实例很重，封装了与注册中心的连接，请自行缓存，否则可能造成内存和连接泄漏
service.setApplication(application);
service.setRegistry(registry); // 多个注册中心可以用setRegistries()
service.setProtocol(protocol); // 多个协议可以用setProtocols()
service.setInterface(DubboService.class);
service.setRef(dubboService);
service.setVersion("1.0.0"); // 暴露及注册服务
service.export(); countDownLatch.await();
}
}
3.注解方式的发布
参考:https://www.cnblogs.com/qlqwjy/p/10539824.html
补充:自建类打成jar包的方式运行:
修改pom.xml
<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>cn.qlq</groupId>
<artifactId>zookeper</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.8</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.12.0</version>
</dependency> <dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.6.6</version>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.20.0-GA</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.34.Final</version>
</dependency> <dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.2</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
</dependency>
</dependencies>
<build>
<!-- 配置了很多插件 -->
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- 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>dubbo.Provider</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>
<useUniqueVersions>false</useUniqueVersions>
<outputDirectory>
${project.build.directory}/lib
</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
maven-jar-plugin 可以设置打包的一些信息。设置jar包运行的主类是dubbo.Provider
maven-dependency-plugin是打包项目所依赖的jar包，上面配置是生成依赖的jar包到target的lib目录下。
运行maven install命令生成jar包和对应的lib目录:
cmd运行下面命令即可:
E:\xiangmu\zookeper\target>set classpath=%classpath%;./lib; E:\xiangmu\zookeper\target>java -jar zookeper-0.0.-SNAPSHOT.jar
dubbo-admin查看项目:
2. 使用dubbo提供的类来发布
使用com.alibaba.dubbo.container.Main类来发布
修改pom.xml即可:
<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>cn.qlq</groupId>
<artifactId>zookeper</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
<dependency>
<groupId>org.apache.zookeeper</groupId>
<artifactId>zookeeper</artifactId>
<version>3.4.8</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-recipes</artifactId>
<version>2.12.0</version>
</dependency> <dependency>
<groupId>com.alibaba</groupId>
<artifactId>dubbo</artifactId>
<version>2.6.6</version>
</dependency>
<dependency>
<groupId>org.javassist</groupId>
<artifactId>javassist</artifactId>
<version>3.20.0-GA</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.34.Final</version>
</dependency> <dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.2</version>
</dependency>
<dependency>
<groupId>org.apache.curator</groupId>
<artifactId>curator-framework</artifactId>
<version>2.12.0</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.25</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-core</artifactId>
<version>1.1.11</version>
</dependency>
</dependencies>
<build>
<!--jar包名称 -->
<finalName>dubboService</finalName>
<resources>
<!--recources文件夹下的所有文件都打进jar包 -->
<resource>
<targetPath>${project.build.directory}/classes</targetPath>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/*.xml</include>
<include>**/*.properties</include>
</includes>
</resource> <!-- 上文有说过，由于我的provider.xml文件不是在META-INF下，这一段代码的作用就是将 provider.xml文件拷贝到META-INF目录下 -->
<resource>
<targetPath>${project.build.directory}/classes/META-INF/spring</targetPath>
<directory>src/main/resources/</directory>
<filtering>true</filtering>
<includes>
<include>provider.xml</include>
</includes>
</resource>
</resources> <pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- 解决Maven插件在Eclipse内执行了一系列的生命周期引起冲突 -->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<versionRange>[2.0,)</versionRange>
<goals>
<goal>copy-dependencies</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
<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>
<useUniqueVersions>false</useUniqueVersions>
<outputDirectory>
${project.build.directory}/lib
</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
${project.build.directory} 构建目录，缺省为target。
运行maven install 或者package打包即可，然后到target目录下运行该jar包:
PS E:\xiangmu\zookeper\target> java -jar .\dubboService.jar
[-- ::] Dubbo service server started!
dubbo-admin查看项目:
简单的方式还是自己编写类发布服务。