nexus 配置文件到本地maven本地仓库 失败

Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.7:deploy (default-deploy) on project maven_day02_dao: Failed to deploy artifacts: Could not transfer artifact com.itheima:maven_day02_dao:jar:1.0-20200420.150331-1 from/to Snapshots (http://localhost:8081/nexus/content/repositories/snapshots/): Failed to transfer file: http://localhost:8081/nexus/content/repositories/snapshots/com/itheima/maven_day02_dao/1.0-SNAPSHOT/maven_day02_dao-1.0-20200420.150331-1.jar. Return code is: 401, ReasonPhrase: Unauthorized.

原因：我本地maven配置的id或账号或密码  验证 不通过。 最后看了下，原来是maven Id里面的配置的 和项目里面配置的snapshotRepository的id 不一样（maven里面的原来已经存在），然后只是在项目的pom中新增而已，结果是因为“区分大小写”。

 nexus 配置文件到本地maven本地仓库步骤

1、在maven的Settings.Xml 文件中的 <servers> 节点下新增

  <server>
         <id>releases</id>
         <username>admin</username>
         <password>admin123</password>
     </server>
    <server>
         <id>Snapshots</id>
         <username>admin</username>
         <password>admin123</password>
     </server>

在项目中的pom.xml文件project 节点下（一般放在最后面，可以具体细化到每个模块）

<distributionManagement>
    <repository>
        <id>releases</id>
        <url>http://localhost:8081/nexus/content/repositories/releases/</url>
    </repository>
    <snapshotRepository>
        <id>snapshots</id>
        <url>http://localhost:8081/nexus/content/repositories/snapshots/</url>
    </snapshotRepository>
</distributionManagement>

id=snapshots 对应的Pom.xml中version中的编译类型，如<version>1.0-SNAPSHOT</version>

3、编译到nexus，