dubbo项目的搭建（三）接口抽取及依赖版本统一_dubbo中的api层能写依赖吗-优快云博客

本文链接：https://blog.youkuaiyun.com/jamesge2010/article/details/105925958

本文详细介绍了使用Dubbo实现微服务的步骤，包括接口抽象、依赖管理、版本统一及依赖配置简化等关键环节。

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1.创建dubbo-demo-api用作接口抽取

2.创建统一接口DemoProviderService.java

package com.java1234.service;

public interface DemoProviderService {

	public String sayHello(String name);
}

3.添加dubbo-demo-provider、dubbo-demo-consumer的dubbo-demo-api依赖

<dependency>
    <groupId>com.java1234</groupId>
    <artifactId>dubbo-demo-api</artifactId>
    <version>0.0.1-SNAPSHOT</version>
</dependency>

4.删除dubbo-demo-provider、dubbo-demo-consumer的DemoProviderService.java

5.创建dubbo-demo-parent作依赖版本统一

<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.java1234</groupId>
  <artifactId>dubbo-demo-parent</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>pom</packaging>
 
  <!-- 依赖版本管理  -->
  <properties>
  	<dubbo-demo-api.version>0.0.1-SNAPSHOT</dubbo-demo-api.version>
  	<dubbo.version>2.6.0</dubbo.version>
    <zkclient.version>0.10</zkclient.version>
    <curator-framework.version>4.0.1</curator-framework.version>
    <fastjson.version>1.2.46</fastjson.version>
    <log4j.version>1.2.17</log4j.version>
    <slf4j-api.version>1.7.25</slf4j-api.version>
    <commons-lang3.version>3.4</commons-lang3.version>
    <netty-all.version>4.0.35.Final</netty-all.version>
  </properties>
 
  <!-- 依赖管理 仅仅定义 -->
  <dependencyManagement>
  	<dependencies>
	     <dependency>
              <groupId>com.java1234</groupId>
              <artifactId>dubbo-demo-api</artifactId>
              <version>${dubbo-demo-api.version}</version>
           </dependency>
          <dependency>
              <groupId>com.alibaba</groupId>
              <artifactId>dubbo</artifactId>
              <version>${dubbo.version}</version>
          </dependency>
          <dependency>
              <groupId>com.101tec</groupId>
              <artifactId>zkclient</artifactId>
              <version>${zkclient.version}</version>
          </dependency>
          <dependency>
              <groupId>org.apache.curator</groupId>
              <artifactId>curator-framework</artifactId>
              <version>${curator-framework.version}</version>
          </dependency>
          <dependency>
              <groupId>com.alibaba</groupId>
              <artifactId>fastjson</artifactId>
              <version>${fastjson.version}</version>
          </dependency>
          <dependency>
              <groupId>log4j</groupId>
              <artifactId>log4j</artifactId>
              <version>${log4j.version}</version>
          </dependency>
          <dependency>
              <groupId>org.slf4j</groupId>
              <artifactId>slf4j-api</artifactId>
              <version>${slf4j-api.version}</version>
          </dependency>
          <dependency>
              <groupId>org.apache.commons</groupId>
              <artifactId>commons-lang3</artifactId>
              <version>${commons-lang3.version}</version>
          </dependency>
          <dependency>
              <groupId>io.netty</groupId>
              <artifactId>netty-all</artifactId>
              <version>${netty-all.version}</version>
          </dependency>
	</dependencies>
  </dependencyManagement>
</project>

6.去除dubbo-demo-provider、dubbo-demo-consumer中的version

<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>
<parent>
    <groupId>com.java1234</groupId>
    <artifactId>dubbo-demo-parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>dubbo-demo-provider</artifactId>
  
<dependencies>
    <dependency>
        <groupId>com.java1234</groupId>
        <artifactId>dubbo-demo-api</artifactId>
    </dependency>
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo</artifactId>
    </dependency>
    <dependency>
        <groupId>com.101tec</groupId>
        <artifactId>zkclient</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-framework</artifactId>
    </dependency>
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-lang3</artifactId>
    </dependency>
    <dependency>
        <groupId>io.netty</groupId>
        <artifactId>netty-all</artifactId>
    </dependency>
</dependencies>
</project>