Dubbo出现的目的是为了应对如今高并发,高数据量请求的问题。目前的垂直应用架构已经没法知足如今大数据的冲击,SOA就应运而生,而Dubbo在国内使用的仍是比较多,稳定性也比较不错。java
Provider: 暴露服务的服务提供方。
Consumer: 调用远程服务的服务消费方。
Registry: 服务注册与发现的注册中心。
Monitor: 统计服务的调用次调和调用时间的监控中心。
Container: 服务运行容器。git
服务容器负责启动,加载,运行服务提供者。github
服务提供者在启动时,向注册中心注册本身提供的服务。web
服务消费者在启动时,向注册中心订阅本身所需的服务。算法
注册中心返回服务提供者地址列表给消费者,若是有变动,注册中心将基于长链接推送变动数据给消费者。spring
服务消费者,从提供者地址列表中,基于软负载均衡算法,选一台提供者进行调用,若是调用失败,再选另外一台调用。数据库
服务消费者和提供者,在内存中累计调用次数和调用时间,定时每分钟发送一次统计数据到监控中心。apache
(1) 连通性:api
注册中心负责服务地址的注册与查找,至关于目录服务,服务提供者和消费者只在启动时与注册中心交互,注册中心不转发请求,压力较小缓存
监控中心负责统计各服务调用次数,调用时间等,统计先在内存汇总后每分钟一次发送到监控中心服务器,并以报表展现
服务提供者向注册中心注册其提供的服务,并汇报调用时间到监控中心,此时间不包含网络开销
服务消费者向注册中心获取服务提供者地址列表,并根据负载算法直接调用提供者,同时汇报调用时间到监控中心,此时间包含网络开销
注册中心,服务提供者,服务消费者三者之间均为长链接,监控中心除外
注册中心经过长链接感知服务提供者的存在,服务提供者宕机,注册中心将当即推送事件通知消费者
注册中心和监控中心所有宕机,不影响已运行的提供者和消费者,消费者在本地缓存了提供者列表
注册中心和监控中心都是可选的,服务消费者能够直连服务提供者
(2) 健状性:
监控中心宕掉不影响使用,只是丢失部分采样数据
数据库宕掉后,注册中心仍能经过缓存提供服务列表查询,但不能注册新服务
注册中心对等集群,任意一台宕掉后,将自动切换到另外一台
注册中心所有宕掉后,服务提供者和服务消费者仍能经过本地缓存通信
服务提供者无状态,任意一台宕掉后,不影响使用
服务提供者所有宕掉后,服务消费者应用将没法使用,并没有限次重连等待服务提供者恢复
(3) 伸缩性:
注册中心为对等集群,可动态增长机器部署实例,全部客户端将自动发现新的注册中心
服务提供者无状态,可动态增长机器部署实例,注册中心将推送新的服务提供者信息给消费者
(4) 升级性:
当服务集群规模进一步扩大,带动IT治理结构进一步升级,须要实现动态部署,进行流动计算,现有分布式服务架构不会带来阻力:
能够得出,注册中心若宕机,只要没有注册新的服务,服务提供者和消费者仍是能够根据本地缓存进行沟通。
而且注册中心不是请求转发中心,因此压力是比较小的。
一、ZooKeeper的配置安装
http://blog.csdn.net/u013142781/article/details/50395650
二、Dubbo-admin配置安装
http://blog.csdn.net/u013142781/article/details/50396621
三、工程API工程建立
工程使用Maven+SpringMVC的方式构建
ITestService.java
package com.gege.service; public interface ITestService { public String getName(); }
DubboInit.java
package com.gege.tool; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import org.apache.commons.lang.exception.ExceptionUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class DubboInit extends HttpServlet { /** * */ private static final long serialVersionUID = 8279515033200832L; private Logger logger = (Logger) LoggerFactory.getLogger(DubboInit.class); /** * 启动dubbo容器 */ public void init() throws ServletException { try { startApplicationContext(); } catch (Exception e) { e.printStackTrace(); logger.error(ExceptionUtils.getFullStackTrace(e)); } } public static ApplicationContext applicationContext = null; /** * 启动spring容器 * @return */ public static ApplicationContext startApplicationContext() { if (applicationContext == null) { applicationContext = new ClassPathXmlApplicationContext("classpath*:applicationContext.xml"); } return applicationContext; }; }
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>com.gege</groupId> <artifactId>api</artifactId> <version>0.0.1-SNAPSHOT</version> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>3.2.8.RELEASE</spring.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <!-- spring相关 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.2</version> </dependency> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.5</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.7</source> <target>1.7</target> <encoding>utf8</encoding> <fileNameMapping>no-version</fileNameMapping> </configuration> </plugin> </plugins> </build> </project>
四、Dubbo服务提供者工程建立与配置
工程使用Maven+SpringMVC的方式构建
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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.gege</groupId> <artifactId>provider</artifactId> <packaging>jar</packaging> <version>0.0.1-SNAPSHOT</version> <properties> <spring.version>3.2.8.RELEASE</spring.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <!-- 添加dubbo依赖 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.3</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> </exclusion> </exclusions> </dependency> <!-- 添加zk客户端依赖 --> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency> <!-- spring相关 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>com.gege</groupId> <artifactId>api</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.14</version> </dependency> <dependency> <groupId>cglib</groupId> <artifactId>cglib</artifactId> <version>2.2</version> </dependency> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.2</version> </dependency> </dependencies> <build> <resources> <resource> //静态资源文件扫描地址 <directory>${project.basedir}/src/main/resources</directory> <includes> <include>*.*</include> </includes> <filtering>true</filtering> </resource> </resources> </build> <profiles> <profile> <id>local</id> <properties> //这是zookeeper的地址,要根据实际状况进行配置,默认zookeeper://127.0.0.1:2181 <dubbo.gege.address>zookeeper://127.0.0.1:2181</dubbo.gege.address> //dubbo暴露的端口配置 <dubbo.gege.port>29014</dubbo.gege.port> //工程的服务集合,${user.name}表示当前PC的UserName <dubbo.gege.group>${user.name}</dubbo.gege.group> //dubbo服务版本号 <dubbo.gege.version>1.0.0</dubbo.gege.version> </properties> <activation> <activeByDefault>true</activeByDefault> </activation> </profile> <profile> <id>dev</id> <properties> <dubbo.gege.address>zookeeper://127.0.0.1:2181</dubbo.gege.address> <dubbo.gege.port>29014</dubbo.gege.port> <dubbo.gege.group>${user.name}</dubbo.gege.group> <dubbo.gege.version>1.0.0</dubbo.gege.version> </properties> </profile> <profile> <id>test</id> <properties> <dubbo.gege.address>zookeeper://127.0.0.1:2181</dubbo.gege.address> <dubbo.gege.port>29014</dubbo.gege.port> <dubbo.gege.group>${user.name}</dubbo.gege.group> <dubbo.gege.version>1.0.0</dubbo.gege.version> </properties> </profile> <profile> <id>product</id> <properties> <dubbo.gege.address>zookeeper://127.0.0.1:2181</dubbo.gege.address> <dubbo.gege.port>29014</dubbo.gege.port> <dubbo.gege.group>${user.name}</dubbo.gege.group> <dubbo.gege.version>1.0.0</dubbo.gege.version> </properties> </profile> </profiles> </project>
TestServiceImpl.java
package com.gege.service.impl; import org.springframework.stereotype.Service; import com.gege.service.ITestService; @Service public class TestServiceImpl implements ITestService { public String getName() { return "gege"; } }
applicationContext.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: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" 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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd"> <task:annotation-driven /> //注解扫描 <context:component-scan base-package="com.gege"/> <context:annotation-config /> <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" /> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath*:statics.properties</value> </list> </property> </bean> <import resource="dubbo-provider.xml"/> </beans>
dubbo-provider.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:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <dubbo:application name="provider" /> <dubbo:registry protocol="dubbo" address="${dubbo.gege.address}" port="${dubbo.gege.port}" /> <dubbo:protocol name="dubbo" port="${dubbo.gege.port}" /> <dubbo:monitor protocol="registry" /> <dubbo:service ref="testServiceImpl" interface="com.gege.service.ITestService" group="${dubbo.gege.group}" version="${dubbo.gege.version}"/> </beans>
log4j.properties
log4j.rootLogger=debug, stdout, R log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout #Pattern to output the caller's file name and line number. log4j.appender.stdout.layout.ConversionPattern=[%d] %t (%F:%L) %-5p - %m%n log4j.appender.R.Encoding=UTF-8 log4j.appender.R=org.apache.log4j.DailyRollingFileAppender log4j.appender.R.DatePattern='_'yyyy-MM-dd_HH'.log' log4j.appender.R.File=${catalina.home}/logs/1.0_order_provider log4j.appender.R.ImmediateFlush=true log4j.appender.R.MaxFileSize=10000KB # Keep one backup file log4j.appender.R.MaxBackupIndex=20 log4j.appender.R.layout=org.apache.log4j.PatternLayout log4j.appender.R.layout.ConversionPattern=[%d] %t %c (%F:%L) %-5p - %m%n log4j.category.com.cheguo=info log4j.category.org.springframework=info log4j.category.freemarker=info
statics.properties
dubbo.gege.address=${dubbo.gege.address} dubbo.gege.port=${dubbo.gege.port} dubbo.gege.version=${dubbo.gege.version} dubbo.gege.group=${dubbo.gege.group} dubbo.gege.check=false dubbo.gege.retries=0 dubbo.gege.timeout=10000
web.xml
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>provider</display-name> <servlet> <servlet-name>dubboService</servlet-name> <servlet-class>com.gege.tool.DubboInit</servlet-class> <load-on-startup>1</load-on-startup> </servlet> </web-app>
五、Dubbo服务消费者工程建立与配置
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/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.gege</groupId> <artifactId>consumer</artifactId> <packaging>jar</packaging> <version>0.0.1-SNAPSHOT</version> <properties> <spring.version>3.2.8.RELEASE</spring.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>com.alibaba</groupId> <artifactId>dubbo</artifactId> <version>2.5.3</version> <exclusions> <exclusion> <groupId>org.springframework</groupId> <artifactId>spring</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency> <!-- spring相关 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jms</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>com.gege</groupId> <artifactId>provider</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.gege</groupId> <artifactId>api</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.14</version> </dependency> <dependency> <groupId>cglib</groupId> <artifactId>cglib</artifactId> <version>2.2</version> </dependency> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.5</version> </dependency> <dependency> <groupId>taglibs</groupId> <artifactId>standard</artifactId> <version>1.1.2</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.2</version> </dependency> </dependencies> <build> <resources> <resource> <directory>${project.basedir}/src/main/resources</directory> <includes> <include>*.*</include> </includes> <filtering>true</filtering> </resource> </resources> </build> <profiles> <profile> <id>local</id> <properties> <dubbo.gege.address>zookeeper://127.0.0.1:2181</dubbo.gege.address> <dubbo.gege.group>${user.name}</dubbo.gege.group> <dubbo.gege.version>1.0.0</dubbo.gege.version> </properties> <activation> <activeByDefault>true</activeByDefault> </activation> </profile> <profile> <id>dev</id> <properties> <dubbo.gege.address>zookeeper://127.0.0.1:2181</dubbo.gege.address> <dubbo.gege.group>${user.name}</dubbo.gege.group> <dubbo.gege.version>1.0.0</dubbo.gege.version> </properties> </profile> <profile> <id>test</id> <properties> <dubbo.gege.address>zookeeper://127.0.0.1:2181</dubbo.gege.address> <dubbo.gege.group>${user.name}</dubbo.gege.group> <dubbo.gege.version>1.0.0</dubbo.gege.version> </properties> </profile> <profile> <id>product</id> <properties> <dubbo.gege.address>zookeeper://127.0.0.1:2181</dubbo.gege.address> <dubbo.gege.group>${user.name}</dubbo.gege.group> <dubbo.gege.version>1.0.0</dubbo.gege.version> </properties> </profile> </profiles> </project>
applicationContext.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: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" 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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd"> <task:annotation-driven /> <context:component-scan base-package="com.gege"/> <context:annotation-config /> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath*:statics.properties</value> </list> </property> </bean> <import resource="dubbo-customer.xml"/> </beans>
dubbo-customer.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:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <dubbo:application name="consumer"></dubbo:application> <!-- 使用zookeeper注册中心暴露服务地址 --> <dubbo:registry id="gege_center" protocol="dubbo" address="${dubbo.gege.address}" /> <dubbo:provider group="${dubbo.gege.group}" version="${dubbo.gege.version}" registry="gege_center"/> <dubbo:consumer group="${dubbo.gege.group}" version="${dubbo.gege.version}" registry="gege_center" check="false" /> <!-- 声明须要引用的服务接口 --> <dubbo:reference id="testService" interface="com.gege.service.ITestService" retries="${dubbo.gege.retries}" timeout="${dubbo.gege.timeout}"/> </beans>
log4j.properties
同上
statics.properties
dubbo.gege.address=${dubbo.gege.address} dubbo.gege.group=${dubbo.gege.group} dubbo.gege.version=${dubbo.gege.version} dubbo.gege.retries=0 dubbo.gege.timeout=10000
ConsumerServiceTest.java
package com.gege.service; import java.io.IOException; import org.apache.log4j.Logger; import org.springframework.context.support.ClassPathXmlApplicationContext; public class ConsumerServiceTest { Logger logger=Logger.getLogger(ConsumerServiceTest.class); public static void main(String[] args) { ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext( new String[] { "applicationContext.xml" }); context.start(); ITestService testService = (ITestService) context.getBean("testService"); System.out.println(testService.getName()); try { System.in.read(); } catch (IOException e) { e.printStackTrace(); } } }
六、运行测试
运行zookeeper,双击zkServer.cmd
运行dubbo-admin,双击Tomcat7w.exe,点击start
在eclipse中用tomcat运行服务提供者,可能存在超时,配置tomcat的timeout配置就能够了
在eclipse中用tomcat运行服务消费者
消费者工程的ConsumerServiceTest下,右键
就能够查看是否成功
正常结果:
gege
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