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Spring Boot 集成Dubbo框架实例

2024-07-13 10:07:41
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使用Spring Boot 与Dubbo集成,这里我之前尝试了使用注解的方式,简单的使用注解注册服务其实是没有问题的,但是当你涉及到使用注解的时候在服务里面引用事务,注入其他对象的时候,会有一些问题。于是我就果断放弃了注解了,使用的是XML,这里可能介绍的是Dubbo,但是如果使用Dubbox的话,基本上是兼容的。接下来,将说说使用XML的方式与Spring Boot在一起开发。

1.创建工程在pom.xml中加入依赖

创建工程名为:

(1)springboot-dubbo-provide

(2)springboot-dubbo-api

(3)springboot-dubbo-consume

springboot-dubbo-api工程主要是放一些service接口,用于提供给消费者使用 。springboot-dubbo-provide工程用于提供服务。  springboot-dubbo-consume工程为消费者。在springboot-dubbo-provide工程中打开pom.xml加入以下依赖,完整代码如下:

<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>com.chengli</groupId>   <artifactId>springboot-dubbo-provide</artifactId>   <version>0.0.1-SNAPSHOT</version>   <packaging>jar</packaging>   <name>springboot-dubbo-provide</name>   <url>http://maven.apache.org</url>   <parent>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-parent</artifactId>     <version>1.4.3.RELEASE</version>   </parent>   <properties>     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>     <java.version>1.8</java.version>     <com.alibaba.dubbo.version>2.5.3</com.alibaba.dubbo.version>     <org.apache.zookeeper.version>3.4.6</org.apache.zookeeper.version>     <com.github.sgroschupf.zkclient.version>0.1</com.github.sgroschupf.zkclient.version>   </properties>   <dependencies>     <dependency>       <groupId>com.chengli</groupId>       <artifactId>springboot-dubbo-api</artifactId>       <version>0.0.1-SNAPSHOT</version>     </dependency>     <dependency>       <groupId>org.springframework.boot</groupId>       <artifactId>spring-boot-starter</artifactId>     </dependency>     <!-- dubbo -->     <dependency>       <groupId>com.alibaba</groupId>       <artifactId>dubbo</artifactId>       <exclusions>         <exclusion>           <groupId>org.springframework</groupId>           <artifactId>spring</artifactId>         </exclusion>       </exclusions>       <version>${com.alibaba.dubbo.version}</version>     </dependency>     <dependency>       <groupId>org.apache.zookeeper</groupId>       <artifactId>zookeeper</artifactId>       <version>${org.apache.zookeeper.version}</version>     </dependency>     <dependency>       <groupId>com.github.sgroschupf</groupId>       <artifactId>zkclient</artifactId>       <version>${com.github.sgroschupf.zkclient.version}</version>     </dependency>   </dependencies>   <build>     <plugins>       <plugin>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-maven-plugin</artifactId>       </plugin>     </plugins>   </build> </project> 

打开springboot-dubbo-consume工程,在pom.xml中加入以下依赖,完整代码如下:

<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>com.chengli</groupId>   <artifactId>springboot-dubbo-consume</artifactId>   <version>0.0.1-SNAPSHOT</version>   <packaging>jar</packaging>   <name>springboot-dubbo-consume</name>   <url>http://maven.apache.org</url>   <parent>     <groupId>org.springframework.boot</groupId>     <artifactId>spring-boot-starter-parent</artifactId>     <version>1.4.3.RELEASE</version>   </parent>   <properties>     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>     <java.version>1.8</java.version>     <com.alibaba.dubbo.version>2.5.3</com.alibaba.dubbo.version>     <org.apache.zookeeper.version>3.4.6</org.apache.zookeeper.version>     <com.github.sgroschupf.zkclient.version>0.1</com.github.sgroschupf.zkclient.version>   </properties>   <dependencies>     <dependency>       <groupId>com.chengli</groupId>       <artifactId>springboot-dubbo-api</artifactId>       <version>0.0.1-SNAPSHOT</version>     </dependency>     <dependency>       <groupId>org.springframework.boot</groupId>       <artifactId>spring-boot-starter-web</artifactId>     </dependency>     <!-- dubbo -->     <dependency>       <groupId>com.alibaba</groupId>       <artifactId>dubbo</artifactId>       <exclusions>         <exclusion>           <groupId>org.springframework</groupId>           <artifactId>spring</artifactId>         </exclusion>       </exclusions>       <version>${com.alibaba.dubbo.version}</version>     </dependency>     <dependency>       <groupId>org.apache.zookeeper</groupId>       <artifactId>zookeeper</artifactId>       <version>${org.apache.zookeeper.version}</version>     </dependency>     <dependency>       <groupId>com.github.sgroschupf</groupId>       <artifactId>zkclient</artifactId>       <version>${com.github.sgroschupf.zkclient.version}</version>     </dependency>     <dependency>       <groupId>org.springframework.boot</groupId>       <artifactId>spring-boot-configuration-processor</artifactId>       <optional>true</optional>     </dependency>   </dependencies>   <build>     <plugins>       <plugin>         <groupId>org.springframework.boot</groupId>         <artifactId>spring-boot-maven-plugin</artifactId>       </plugin>     </plugins>   </build> </project> 

2.Dubbo配置

2.1springboot-dubbo-provide服务提供者

(1)在springboot-dubbo-provide项目中创建入口启动类MainConfig,完整代码如下:

package com.chengli.springboot;  import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;  @SpringBootApplication public class MainConfig {   public static void main(String[] args) {     SpringApplication.run(MainConfig.class, args);     try {       System.in.read();     } catch (Exception e) {       e.printStackTrace();     }   } } 

(2)创建Dubbo配置类

package com.chengli.springboot.dubbo;  import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.ImportResource; import org.springframework.context.annotation.PropertySource;  @Configuration @PropertySource("classpath:dubbo/dubbo.properties") @ImportResource({ "classpath:dubbo/*.xml" }) public class DubboConfig {  } 

(3)创建Dubbo配置文件

在src/main/resources下新建文件夹dubbo,并加入以下配置:

dubbo-provider.xml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">    <!-- 提供方应用信息,用于计算依赖关系 -->   <dubbo:application name="${dubbo.application.name}" />    <!-- 注册中心暴露服务地址 -->   <!-- <dubbo:registry address="multicast://224.5.6.7:1234" /> -->      <!-- <dubbo:registry protocol="zookeeper" address="10.170.219.98:2181,10.173.55.173:2181" /> -->   <dubbo:registry protocol="${dubbo.registry.protocol}" address="${dubbo.registry.address}" />    <!-- 暴露服务 -->   <dubbo:protocol name="${dubbo.protocol.name}" port="${dubbo.protocol.port}" />      <dubbo:service interface="com.chengli.springboot.example.service.ExampleService"     ref="exampleServiceImpl" retries="0" timeout="6000" /> </beans> 

注意:这里我发布的example服务是示例,具体的根据实际修改

(4)创建dubbo.properties

#应用名称 dubbo.application.name=example-provider #注册中心类型 dubbo.registry.protocol=zookeeper #注册中心地址 dubbo.registry.address=127.0.0.1:2181 #暴露服务方式 dubbo.protocol.name=dubbo #暴露服务端口 dubbo.protocol.port=20880 

2.2springboot-dubbo-consume服务消费者

(1)创建入口启动类MainConfig

package com.chengli.springboot;  import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;  @SpringBootApplication public class MainConfig {   public static void main(String[] args) {     SpringApplication.run(MainConfig.class, args);   } } 

(2)创建Dubbo配置类

package com.chengli.springboot.dubbo;  import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.ImportResource; import org.springframework.context.annotation.PropertySource;  @Configuration @PropertySource("classpath:dubbo/dubbo.properties") @ImportResource({ "classpath:dubbo/*.xml" }) public class DubboConfig {  } 

(3)创建Dubbo配置文件

在src/main/resources下新建文件夹dubbo,并加入以下配置:

dubbo-consume.xml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">    <!-- 提供方应用信息,用于计算依赖关系 -->   <dubbo:application name="${dubbo.application.name}" />    <!-- 注册中心暴露服务地址 -->   <dubbo:registry protocol="${dubbo.registry.protocol}" address="${dubbo.registry.address}" />      <dubbo:reference id="axempleService" interface="com.chengli.springboot.example.service.ExampleService" /> </beans> 

(4)创建dubbo.properties

#应用名称 dubbo.application.name=example-consume #注册中心类型 dubbo.registry.protocol=zookeeper #注册中心地址 dubbo.registry.address=127.0.0.1:2181 

到这里基本上就已经可以了,不过测试类的代码我就不贴上来了。只要在API中定义接口实现即可。使用Spring Boot 与Dubbo集成的时候,需要注意的是,不要使用Spring Boot提供的devtools热启动,因为devtools提供了两个ClassLoader,加载策略问题导致出现错误,无法启动。如果开发中需要热加载,那么使用Spring 提供的springloaded。

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持VeVb武林网。

 

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