解决：Connect to xx.xx.xxx.xx :8081 [/xx.xx.xx.xx] failed: Connection refu sed: connect -＞ [H

Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy 
(default-deploy) on project gentle: 
Failed to retrieve remote metadata com:gentle:1.0-SNAPSHOT/maven-metadata.xml:
 Could not transfer metadata com:gentle:1.0-SNAPSHOT/maven-metadata.xml
 from/to user-snapshots (http://xx.xx.xx.xx:8081/nexus/content/repositories/snapshots/):
 Connect to xx.xx.xx.xx:8081 [/xx.xx.xx.xx] failed: Connection refused: connect -> [H

1.这是在pom.xml 中：

  <distributionManagement>
        <!--JY - 私服-->
        <repository>
            <id>releases</id>
            <name>Nexus Release Repository</name>
            <url>http://此处是服务器IP:8081/repository/maven-releases/</url>
        </repository>
        <snapshotRepository>
            <id>snapshots</id>
            <name>Nexus Snapshot Repository</name>
            <url>http://此处是服务器IP:8081/repository/maven-snapshots/</url>
        </snapshotRepository>
    </distributionManagement>



2.这是在 setting.xml 中：

	<servers>			
		<!-- JY 私服配置 -->
		 <server>
		  <id>releases</id>
		  <username>admin</username>
		  <password>admin123</password>
		</server>
		<server>
		  <id>snapshots</id>
		  <username>admin</username>
		  <password>admin123</password>
		</server>
	</servers>