SpringBoot与Dubbo整合下篇
(1)pom.xml引入相关依赖jar包,如下:
<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>org.apache.zookeeper</groupId> <artifactId>zookeeper</artifactId> <version>3.4.5</version> <exclusions> <exclusion> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </exclusion> <exclusion> <groupId>log4j</groupId> <artifactId>log4j</artifactId> </exclusion> </exclusions> </dependency> <dependency> <groupId>com.github.sgroschupf</groupId> <artifactId>zkclient</artifactId> <version>0.1</version> </dependency>
(2)编写服务的接口以及实现类,如下:
package springboot.dao; public interface DubboService { public String sayHello(); }
接口实现类:
package springboot.dao.imp; import org.springframework.stereotype.Service; import springboot.dao.DubboService; @Service("DubboService") public class DubboServiceImp implements DubboService{ @Override public String sayHello() { return "Hello Dubbo"; } }
(3)在resources文件下建立服务方provider.xml配置文件,内容如下:
<?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" 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"> <!-- 服务应用名称 --> <dubbo:application name="provider"/> <!-- 使用zookeeper做为注册中心 --> <dubbo:registry protocol="zookeeper" address="zookeeper://172.31.19.224:2181"/> <!-- ref中的值要跟服务实现类中的@Server的值一致 --> <dubbo:service interface="springboot.dao.DubboService" ref="DubboService"></dubbo:service> </beans>
(4)修改springboot启动类,启动时引入provider.xml文件,使用@ImportResource("classpath:provider.xml"),如下:
package springboot; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.boot.web.support.SpringBootServletInitializer; import org.springframework.cache.annotation.EnableCaching; import org.springframework.context.annotation.ImportResource; import org.springframework.scheduling.annotation.EnableScheduling; @SpringBootApplication @EnableScheduling @EnableCaching @ImportResource("classpath:consumer.xml") public class SpringbootApplication extends SpringBootServletInitializer{ public static void main(String[] args) { SpringApplication.run(SpringbootApplication.class, args); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(SpringbootApplication.class); } }
至此,服务方已经配置完毕了,我这里将代码发布到tomcat上。如果想在本地测试话,需要更改一下启动端口,因为后面消费方也需要启动。
(5)接下来我们将服务接口.class文件(即上述的DubboService.class接口)打成jar包,(服务消费方在项目中需要导入该jar包才能调用服务),进入到DubboService.class目录下,启动控制台,输入:
至此,dubbo服务方提供已经开发完毕!
(6)接下来开发服务消费方,将上述jar包导入到项目中。如果是maven项目,还需要将jar继续打包,将上述jar包修改成DubboService-1.0.jar,输入如下命令:
mvn install:install-file -Dfile=DubboService-1.0.jar -DgroupId=dubboService -DartifactId=dubboService -Dversion=1.0 -Dpackaging=jar
结束后,会在本地仓库生成如下文件夹:
(7)在resources文件下新建consumer.xml配置文件,如下:
<?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" 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"> <!-- 应用名称 --> <dubbo:application name="consumer" /> <!-- zookeeper作为注册中心 --> <dubbo:registry protocol="zookeeper" address="zookeeper://172.31.19.224:2181" /> <!-- 生成远程服务代理 --> <dubbo:reference interface="springboot.dao.DubboService" id="dubboService"></dubbo:reference> </beans>
(8)在pom.xml中引入刚刚打包生成的jar包,如下:
<dependency> <groupId>dubboService</groupId> <artifactId>dubboService</artifactId> <version>1.0</version> </dependency>
(9)新建Controller,如下:
package springboot.web; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; import springboot.dao.DubboService; @RestController public class HelloController { @Autowired private DubboService dubboService; @RequestMapping("/hello") public String hello(){ return dubboService.sayHello(); } }
(10)修改启动类,如下:
package springboot; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.boot.web.support.SpringBootServletInitializer; import org.springframework.cache.annotation.EnableCaching; import org.springframework.context.annotation.ImportResource; import org.springframework.scheduling.annotation.EnableScheduling; @SpringBootApplication @EnableScheduling @EnableCaching @ImportResource("classpath:consumer.xml") public class SpringbootApplication extends SpringBootServletInitializer{ public static void main(String[] args) { SpringApplication.run(SpringbootApplication.class, args); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(SpringbootApplication.class); } }
(11)测试验证,浏览器输入:http://localhost:8080/hello,显示如下:
至此,springBoot与Dubbo整合完毕!过程中也遇到一些小问题,记录一下吧。
(1)过程provider.xml,consumer.xml文件会报错,但是不影响项目运行,如下:Description Resource Path Location Type cvc-complex-type.2.4.c: The matching..........
解决方法如下:http://blog.csdn.net/u010457406/article/details/50696390
(2)项目没有报错,但是项目名出现了个红叉,百度搜了好多都不对,只有这个有效,地址如下:
解决方法如下:http://blog.csdn.net/hongchangfirst/article/details/7663287
继续努力!