2023-03-12  阅读(351)
原文作者:w3cschool 原文地址:https://www.w3cschool.cn/intellij_idea_tutorial/intellij_idea_tutorial-clvf3h50.html
  • Maven 中有一个概念叫做:profile,它的诞生主要是为了解决不同环境所需的不同变量、配置等问题。
  • 有了 profile,可以根据激活的条件,启动不同条件下的配置信息。
  • profile是可以有多个的,也可以同时激活多个 profile,方便自由组合。
  • profile 一般可以在三个地方:settings.xmlpom.xmlprofiles.xml(这个不常用)
  • settings.xml 上,一般大家用来做仓库的选择,比如以下settings.xml代码:
    
      
        
         
       <?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">
      
        
      
        
      
        
         
           <localRepository>D:\maven\my_local_repository</localRepository>
      
        
      
        
      
        
         
           <pluginGroups>
      
        
      
        
         
           </pluginGroups>
      
        
      
        
      
        
         
           <proxies>
      
        
      
        
         
           </proxies>
      
        
      
        
      
        
         
           <profiles>
      
        
      
        
         
               <profile>
      
        
      
        
         
                   <id>nexus</id>
      
        
      
        
         
                   <repositories>
      
        
      
        
         
                       <repository>
      
        
      
        
         
                           <id>nexus</id>
      
        
      
        
         
                           <url>http://192.168.1.73:8081/repository/maven-public/</url>
      
        
      
        
         
                           <releases>
      
        
      
        
         
                               <enabled>true</enabled>
      
        
      
        
         
                           </releases>
      
        
      
        
         
                           <snapshots>
      
        
      
        
         
                               <enabled>true</enabled>
      
        
      
        
         
                           </snapshots>
      
        
      
        
         
                       </repository>
      
        
      
        
         
                   </repositories>
      
        
      
        
         
                   <pluginRepositories>
      
        
      
        
         
                       <pluginRepository>
      
        
      
        
         
                           <id>nexus</id>
      
        
      
        
         
                           <url>http://192.168.1.73:8081/repository/maven-public/</url>
      
        
      
        
         
                           <releases>
      
        
      
        
         
                               <enabled>true</enabled>
      
        
      
        
         
                           </releases>
      
        
      
        
         
                           <snapshots>
      
        
      
        
         
                               <enabled>true</enabled>
      
        
      
        
         
                           </snapshots>
      
        
      
        
         
                       </pluginRepository>
      
        
      
        
         
                   </pluginRepositories>
      
        
      
        
         
               </profile>
      
        
      
        
         
               <profile>
      
        
      
        
         
                   <id>aliyun</id>
      
        
      
        
         
                   <repositories>
      
        
      
        
         
                       <repository>
      
        
      
        
         
                           <id>aliyun</id>
      
        
      
        
         
                           <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
      
        
      
        
         
                           <releases>
      
        
      
        
         
                               <enabled>true</enabled>
      
        
      
        
         
                           </releases>
      
        
      
        
         
                           <snapshots>
      
        
      
        
         
                               <enabled>true</enabled>
      
        
      
        
         
                           </snapshots>
      
        
      
        
         
                       </repository>
      
        
      
        
         
                   </repositories>
      
        
      
        
         
                   <pluginRepositories>
      
        
      
        
         
                       <pluginRepository>
      
        
      
        
         
                           <id>aliyun</id>
      
        
      
        
         
                           <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
      
        
      
        
         
                           <releases>
      
        
      
        
         
                               <enabled>true</enabled>
      
        
      
        
         
                           </releases>
      
        
      
        
         
                           <snapshots>
      
        
      
        
         
                               <enabled>true</enabled>
      
        
      
        
         
                           </snapshots>
      
        
      
        
         
                       </pluginRepository>
      
        
      
        
         
                   </pluginRepositories>
      
        
      
        
         
               </profile>
      
        
      
        
         
           </profiles>
      
        
      
        
      
        
         
           <activeProfiles>
      
        
      
        
         
               <activeProfile>nexus</activeProfile>
      
        
      
        
         
           </activeProfiles>
      
        
      
        
      
        
         
       </settings>
  • 以上代码中 profile 就做一件事:设置全局的 profile,一个是 nexus仓库,一个是 aliyun仓库,默认激活的是 nexus 仓库。(activeProfiles
  • pom.xml中,一般用来激活环境配置,比如以下代码:
    
      
        
         
       <profiles>
      
        
      
        
         
           <profile>
      
        
      
        
         
               <id>dev</id>
      
        
      
        
         
               <properties>
      
        
      
        
         
                   <package.environment>dev</package.environment>
      
        
      
        
         
               </properties>
      
        
      
        
         
               <activation>
      
        
      
        
         
                   <activeByDefault>true</activeByDefault>
      
        
      
        
         
               </activation>
      
        
      
        
         
               <build>
      
        
      
        
         
                   <resources>
      
        
      
        
         
                       <resource>
      
        
      
        
         
                           <directory>src/main/resources</directory>
      
        
      
        
         
                           <includes>
      
        
      
        
         
                               <include>**/*</include>
      
        
      
        
         
                           </includes>
      
        
      
        
         
                           <filtering>true</filtering>
      
        
      
        
         
                       </resource>
      
        
      
        
         
                       <resource>
      
        
      
        
         
                           <directory>src/main/env/${package.environment}</directory>
      
        
      
        
         
                           <includes>
      
        
      
        
         
                               <include>**/*</include>
      
        
      
        
         
                           </includes>
      
        
      
        
         
                           <filtering>true</filtering>
      
        
      
        
         
                       </resource>
      
        
      
        
         
                   </resources>
      
        
      
        
         
                   <finalName>${project.artifactId}</finalName>
      
        
      
        
         
               </build>
      
        
      
        
         
           </profile>
      
        
      
        
         
           <profile>
      
        
      
        
         
               <id>product</id>
      
        
      
        
         
               <properties>
      
        
      
        
         
                   <package.environment>product</package.environment>
      
        
      
        
         
               </properties>
      
        
      
        
         
               <activation>
      
        
      
        
         
                   <activeByDefault>false</activeByDefault>
      
        
      
        
         
               </activation>
      
        
      
        
         
               <build>
      
        
      
        
         
                   <resources>
      
        
      
        
         
                       <resource>
      
        
      
        
         
                           <directory>src/main/resources</directory>
      
        
      
        
         
                           <includes>
      
        
      
        
         
                               <include>**/*</include>
      
        
      
        
         
                           </includes>
      
        
      
        
         
                           <filtering>true</filtering>
      
        
      
        
         
                       </resource>
      
        
      
        
         
                       <resource>
      
        
      
        
         
                           <directory>src/main/env/${package.environment}</directory>
      
        
      
        
         
                           <includes>
      
        
      
        
         
                               <include>**/*</include>
      
        
      
        
         
                           </includes>
      
        
      
        
         
                           <filtering>true</filtering>
      
        
      
        
         
                       </resource>
      
        
      
        
         
                   </resources>
      
        
      
        
         
                   <finalName>${project.artifactId}</finalName>
      
        
      
        
         
               </build>
      
        
      
        
         
           </profile>
      
        
      
        
         
       </profiles>
  • 以上代码中 profile就做一件事:打包的时候,默认是 dev模式,打包 src/main/env/dev 下的配置文件,如果选择 product 则打包 src/main/env/product 下的配置文件。
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