<h3 id="4750t">什么是maven</h3><p>Maven是一個(gè)構(gòu)建工具此衅，可以自動(dòng)化構(gòu)建，抽象了構(gòu)建過(guò)程责鳍，提供了構(gòu)建任務(wù)的實(shí)現(xiàn)，還是一個(gè)依賴管理工具和項(xiàng)目管理工具振坚，同時(shí)Maven搭建了中央倉(cāng)庫(kù)薇搁，方便構(gòu)建的下載，還可以搭建私服渡八，提升下載效率啃洋。
</p><p>安裝maven（Windows）</p><p>確認(rèn)系統(tǒng)安裝好jdk，并配置環(huán)境變量</p><div class="image-package"><img src="https://upload-images.jianshu.io/upload_images/8965049-bcd6bb0f359c4f9a.jpg" contenteditable="false" img-data="{"format":"jpeg","size":33094,"height":519,"width":993}" class="uploaded-img" style="min-height:200px;min-width:200px;" width="auto" height="auto"/>
</div><p>將下載好的maven包解壓到目錄下屎鳍。maven官網(wǎng)<a target="_blank" style="background-color: rgb(255, 255, 255); font-size: 14px;">https://maven.apache.org/download.cgi</a></p><div class="image-package"><img src="https://upload-images.jianshu.io/upload_images/8965049-b36e5253ef287b36.jpg" contenteditable="false" img-data="{"format":"jpeg","size":20937,"height":285,"width":645}" class="uploaded-img" style="min-height:200px;min-width:200px;" width="auto" height="auto"/>
</div><h3 id="pcyop">配置maven環(huán)境變量 在電腦右鍵屬性-高級(jí)-環(huán)境變量</h3><p>1宏娄、增加MAVEN_HOME 指定剛解壓的目錄</p><p>2、編輯系統(tǒng)變量中的Path 增變量值 %MAVEN_HOME%\bin</p><div class="image-package"><img src="https://upload-images.jianshu.io/upload_images/8965049-4763094dc255c1ba.jpg" contenteditable="false" img-data="{"format":"jpeg","size":56236,"height":666,"width":632}" class="uploaded-img" style="min-height:200px;min-width:200px;" width="auto" height="auto"/>
</div><p>打開cmd 查看環(huán)境變量設(shè)置是否成功</p><div class="image-package"><img src="https://upload-images.jianshu.io/upload_images/8965049-cfa080b2ba2b08c7.jpg" contenteditable="false" img-data="{"format":"jpeg","size":45094,"height":519,"width":993}" class="uploaded-img" style="min-height:200px;min-width:200px;" width="auto" height="auto"/>
</div><h3 id="jmqwq">Maven常用命令說(shuō)明（這些命令可以組合使用）</h3><p>
mvn clean 表示運(yùn)行清理操作（會(huì)默認(rèn)把target文件夾中的數(shù)據(jù)清理）逮壁。

mvn install 安裝孵坚，會(huì)將打好的包安裝到本地倉(cāng)庫(kù)中，以便其他的項(xiàng)目可以調(diào)用窥淆。

mvn compile 編譯卖宠，會(huì)將代碼編譯到target文件夾中。

mvn package 打包忧饭，會(huì)將代碼編譯到target文件夾中扛伍，并打好jar包。

mvn deploy 發(fā)布（發(fā)布到私服上面）词裤。

mvn test 執(zhí)行項(xiàng)目單元測(cè)試刺洒，會(huì)把項(xiàng)目中test目錄下的所有單測(cè)執(zhí)行一次</p><h3 id="akhku">idea指定maven插件</h3><p>在settings中搜素maven 然后配置 maven相關(guān)</p><div class="image-package"><img src="https://upload-images.jianshu.io/upload_images/8965049-85f4907f7f462bdf.jpg" contenteditable="false" img-data="{"format":"jpeg","size":58798,"height":720,"width":938}" class="uploaded-img" style="min-height:200px;min-width:200px;" width="auto" height="auto"/>
</div><h3 id="2zzxt">創(chuàng)建自己的Maven BOM來(lái)管理版本依賴</h3><p>在項(xiàng)目的初期，我們先引入spring-cloud-alibaba吼砂，spring-boot逆航，spring-cloud；
</p><p>在這里查看三個(gè)版本對(duì)應(yīng)關(guān)系（<a target="_blank" style="background-color: rgb(255, 255, 255); font-size: 14px;">https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E</a>）</p><p>這里我們選擇最新的</p><p><?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<groupId>org.onedayday</groupId>
<artifactId>thatmall-dependencies</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>pom</packaging>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<spring-cloud-alibaba.version>2.2.7.RELEASE</spring-cloud-alibaba.version>
<spring-boot.version>2.3.12.RELEASE</spring-boot.version>
<spring-cloud.version>Hoxton.SR12</spring-cloud.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-alibaba-dependencies</artifactId>
<version>{spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
</p><h3>項(xiàng)目主pom.xml文件中節(jié)點(diǎn)下首位處加入如下：</h3><p><dependencyManagement>
<dependencies>
<dependency>
<groupId>org.onedayday</groupId>
<version>1.0-SNAPSHOT</version>
<artifactId>thatmall-dependencies</artifactId>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</p><h3>在需要使用相關(guān)JAR包的pom.xml文件中節(jié)點(diǎn)下引入如下：(lombok源自springboot)</h3><p><dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</dependency>
</dependencies>
</p><p>如需升級(jí)版本 直接維護(hù)BOM里邊的版本就好
</p>