maven的settings.xml配置详解

太过爱你忘了你带给我的痛 2022-05-10 13:10 1134阅读 0赞

> **简介**  
>         用maven管理项目时，会通过pom引入需要的jar包，此时开发工具（编译工具）会去加载maven的配置文件settings.xml,而该配置文件可以放在多个地方，我们该如何取舍和配置自己的自定义配置？

**配置文件加载顺序**  
         pom.xml  > /home\_dir/.m2/settings.xml > /maven\_dir/conf/settings.xml   
        理解：编译工具会先读取pom.xml中的配置信息，比如maven远程仓库，如果发现pom中有需要的配置，则使用当前配置，没有配置则去用户目录下的.m2文件夹下去找settings.xml文件，以此类推，如果.m2下还是没有，则去maven的conf下去找settings.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">
        
    
        
        <localRepository>${user.home}/workspace/env/maven/repository</localRepository>
    
        
        <interactiveMode>true</interactiveMode>
    
        
        <offline>false</offline>
    
        
        <pluginGroups>
    
            
            
    
        </pluginGroups>
    
        
        <servers>
            <server>
                
                <id>server_id</id>
    
                
                <username>auth_username</username>
    
                
                <password>auth_pwd</password>
    
                
                <privateKey>path/to/private_key</privateKey>
    
                
                <passphrase>some_passphrase</passphrase>
    
                
                <filePermissions>664</filePermissions>
    
                
                <directoryPermissions>775</directoryPermissions>
    
                
                <configuration></configuration>
    
            </server>
        </servers>
    
        
        <mirrors>
    
            
    
             
            <mirror>
    
                
                <id>sjtugmaven</id>
    
                
                <name>sjtug maven proxy</name>
    
                
                <url>https://mirrors.sjtug.sjtu.edu.cn/maven-central/</url>
                
                <mirrorOf>central</mirrorOf>
            </mirror>
    
        </mirrors>
    
        
        <proxies>
    
            
            <proxy>
    
                
                <id>example_proxy</id>
    
                
                <active>false</active>
    
                
                <protocol>https</protocol>
    
                
                <host>proxy.molo.com</host>
    
                
                <port>443</port>
    
                
                <username>proxy_user</username>
    
                
                <password>proxy_pwd</password>
    
                
                <nonProxyHosts>*.google.com|ibiblio.org</nonProxyHosts>
    
            </proxy>
    
        </proxies>
    
        
        <profiles>
    
            <profile>
    
                
                <id>profile_id</id>
    
                
                <activation>
    
                    
                    <activeByDefault>false</activeByDefault>
    
                    
                    <jdk>9.9</jdk>
    
                    
                    <os>
    
                        
                        <name>Windows XP</name>
    
                        
                        <family>Windows</family>
    
                        
                        <arch>x86</arch>
    
                        
                        <version>5.1.2600</version>
    
                    </os>
    
                    
                    <property>
    
                        
                        <name>mavenVersion</name>
    
                        
                        <value>2.0.3</value>
    
                    </property>
                    
                    
                    <file>
    
                        
                        <exists>/path/to/active_on_exists</exists>
    
                        
                        <missing>/path/to/active_on_missing</missing>
    
                    </file>
    
                </activation>
                
                <properties>
    
                    
                    <profile.property>this.property.is.accessible.when.current.profile.actived</profile.property>
    
                </properties>
    
                
                <repositories>
                    
    
                    
                    <repository>
    
                        
                        <id>maven_repository_id</id>
    
                        
                        <name>maven_repository_name</name>
    
                        
                        <url>http://host/maven</url>
    
                        
                        <layout>default</layout>
    
                        
                        <releases>
    
                            
                            <enabled>false</enabled>
    
                            
                            <updatePolicy>always</updatePolicy>
    
                            
                            <checksumPolicy>warn</checksumPolicy>
    
                        </releases>
    
                        
                        <snapshots>
                            <enabled />
                            <updatePolicy />
                            <checksumPolicy />
                        </snapshots>
    
                    </repository>
    
                    
    
                </repositories>
    
                
                
    
            </profile>
    
        </profiles>
    
        
        
    
    </settings>