Cannot resolve org.springframework.cloud:spring-cloud-starter-netflix-eureka-server:unknown

前言：启动eureka项目，发现右侧maven中的项目dependencies报红，reimport也没用启动类也是报错，一、本地 maven 配置<localRepository>D:\maven\repository</localRepository><mirror><id>aliyun</id&g

lanren312

6287人浏览 · 2022-05-13 21:15:00

lanren312 · 2022-05-13 21:15:00 发布

前言：启动eureka项目，发现右侧maven中的项目dependencies报红，reimport也没用，经排查springcloud和springboot版本号没问题。Spring Cloud

启动类也是报错，@EnableEurakaServer注入失败

一、本地 maven 配置、仓库下载

<?xml version="1.0" encoding="UTF-8"?>

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">

	<!--配置本地仓储路径-->
	<localRepository>D:\maven\repository</localRepository>
	
	<pluginGroups>
	</pluginGroups>

	<proxies>
	</proxies>

	<servers>
	</servers>

	<mirrors>

		<mirror>
			<id>aliyun</id>
			<name>aliyun Maven</name>
			<mirrorOf>central</mirrorOf>
			<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
		</mirror>

	</mirrors>

	<profiles>
		<profile>
		 <id>jdk-1.8</id>
		 <activation>
			<activeByDefault>true</activeByDefault>
			<jdk>1.8</jdk>
		 </activation>
		 <properties>
			<maven.compiler.source>1.8</maven.compiler.source>
			<maven.compiler.target>1.8</maven.compiler.target>
			<maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
		 </properties>
		</profile>
	</profiles>
	<activeProfiles>
	</activeProfiles>



</settings>

ps:将仓库已有的删除，重新reimport，还是有问题。

二、解决办法

1、在pom中指定版本号，版本号要和springboot版本号一致。

<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.1.1.RELEASE</version>
	<relativePath/> <!-- lookup parent from repository -->
</parent>

<properties>
     <java.version>1.8</java.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <spring-cloud.version>Greenwich.RC1</spring-cloud.version>
</properties>

<dependencies>
	<dependency>
		<groupId>org.springframework.cloud</groupId>
		<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
		<version>2.1.1.RELEASE</version>
	</dependency>
</dependencies>

最后，重新reimport，右侧 maven 中的项目dependencies报红没了，版本号是刚写的 2.1.1.RELEASE

启动类上的 @EnableEurakaServer 也注入成功，登陆 Euraka 启动成功。

2、idea配置自带的Maven

看了之前同事帮忙的截图，pom中是没有指定版本号的，但右侧的maven的版本号 2.1.0.RC2

同事提了一下这个，里面是https

<repositories>
	<repository>
		<id>spring-milestones</id>
		<name>Spring Milestones</name>
		<url>https://repo.spring.io/milestone</url>
	</repository>
</repositories>

同事还帮忙指出了两个解决办法，一是将jdk版本提高到1.8.0.33以上，第二个使用默认的maven

找到idea的安装路径 D:\Program Files\JetBrains\IntelliJ IDEA 2020.1\plugins\maven\lib\maven3\conf

配置maven本地仓库，注意看标签位置

  <!-- localRepository
   | The path to the local repository maven will use to store artifacts.
   |
   | Default: ${user.home}/.m2/repository
  <localRepository>/path/to/local/repo</localRepository>
  -->
<!--配置本地仓储路径-->
	<localRepository>D:\maven\repository</localRepository>

配置阿里云加快下载速度，注意看标签位置

<mirrors>
    <!-- mirror
     | Specifies a repository mirror site to use instead of a given repository. The repository that
     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
     |
    <mirror>
      <id>mirrorId</id>
      <mirrorOf>repositoryId</mirrorOf>
      <name>Human Readable Name for this Mirror.</name>
      <url>http://my.repository.com/repo/path</url>
    </mirror>
     -->

		<mirror>
			<id>aliyun</id>
			<name>aliyun Maven</name>
			<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
			<mirrorOf>central</mirrorOf>
		</mirror>
		
  </mirrors>

再将maven仓库已有的删除，重新reimport，会发现Maven仓库多了一个包 2.1.0.RC2

三、多模块打包出现的问题

maven配置参考博客： https://www.cnblogs.com/alexgl2008/p/13949291.html

每个单独的模块pom.xm中都有配置

<repositories>
	<repository>
		<id>spring-milestones</id>
		<name>Spring Milestones</name>
		<url>https://repo.spring.io/milestone</url>
	</repository>
</repositories>

1、报错一

Failure to find com.lanren312.projects:xxxxxxxxx:jar:1.0.0 in https://repo.spring.io/milestone was cached in the local repository, resolution will not be reattempted until the update interval of spring-milestones has elapsed or updates are forced -> [Hel

对A模块打包报错：
之前的打包步骤 mvn clean, complie, package

原因：多模块化工程，A模块依赖B模块，B模块没有install
解决办法：在B模块进行 mvn clean, install，再去A模块mvn clean, complie, package就好了

2、报错二

Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test (default-test) on project gx-game-provider: There are test failures.