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1.倉庫型別
	proxy:代理倉庫，用於代理遠端倉庫
	group:倉庫組，通常包含了多個代理倉庫和宿主倉庫，在專案中只要引入倉庫組就可以下載到代理倉庫和宿主倉庫中的包
	hosted:宿主倉庫，內部專案、付費jar
	releases 釋出內部release版本的倉庫
	snapshots 釋出內部snapshots版本的倉庫
	third 自建第三方jar
2.配置代理
	選擇阿里雲http://maven.aliyun.com/nexus/content/groups/public/
3.本地maven配置
	修改maven目錄下的conf/setting.xml

<?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">
  <pluginGroups/>
  <proxies/>
  <servers>
    <server>
      <id>xdclass-releases</id>
      <username>admin</username>   //設定nexus 使用者
      <password>admin123</password>
    </server>
    <server>
      <id>xdclass-snapshots</id>  //設定nexus登陸戶和密碼
      <username>admin</username>
      <password>admin123</password>
    </server>
  </servers>
  <mirrors/>
  <profiles>
    <profile>
      <id>xdclass</id>
      <activation>
        <activeByDefault>false</activeByDefault>
      </activation>
      <!-- 私有庫地址-->
      <repositories>
        <repository>
          <id>xdclass</id>
          <url>http://192.168.56.101:8081/repository/maven-public/</url>
          <releases>
            <enabled>true</enabled>
          </releases>
          <snapshots>
            <enabled>true</enabled>
          </snapshots>
        </repository>
      </repositories>
      <!--外掛庫地址-->
      <pluginRepositories>
        <pluginRepository>
          <id>xdclass</id>
          <url>http://192.168.56.101:8081/repository/maven-public/</url>
          <releases>
            <enabled>true</enabled>
          </releases>
          <snapshots>
            <enabled>true</enabled>
          </snapshots>
        </pluginRepository>
      </pluginRepositories>
    </profile>
  </profiles>
  <activeProfiles>
    <activeProfile>xdclass</activeProfile>
  </activeProfiles>
</settings>


10.修改編輯器中maven的配置，將配置指向setting.xml
11.修改pom
<!--pom.xml 遠端倉庫的配置 id要跟本地maven的setting.xml相同 -->
<distributionManagement>
    <repository>
        <id>xdclass-releases</id>
        <name>Ruizhi Release Repository</name>
        <url>http://192.168.56.101:8081/repository/maven-releases/</url>
    </repository>
 
    <snapshotRepository>
        <id>xdclass-snapshots</id>
        <name>Ruizhi Snapshot Repository</name>
        <url>http://192.168.56.101:8081/repository/maven-snapshots/</url>
    </snapshotRepository>
</distributionManagement>
 
12.測試是否nexus搭建成功
    pom新增本地沒有的依賴，看nexus會不會代理
    mvn deploy 看是否成功推送至nexus