添加<packaging>war</packaging>后出现如下报错

慕先生3168773 2020-02-18

源自：项目：商品信息管理 2-2 项目搭建

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4回答

好帮手慕小班 2020-02-20 16:01:44

同学你好，查看同学新贴出的报错，报错信息已经发生了改变是：Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.5 from，没有找到maven-clean-plugin:pom:2.5，同学可以尝试在pom文件中添加如下内容：

<dependency>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-clean-plugin</artifactId>
    <version>2.5</version>
</dependency>

如上修改后，再来查看，能否正常下载jar了。

如果我的回答解决了你的疑惑，请采纳。祝：学习愉快~

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提问者慕先生3168773 2020-02-20 13:57:25

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好帮手慕小班 2020-02-20 10:52:00

同学你好，同学可以尝试在maven的配置文件setting.xml文件中，添加镜像源 :

<mirror>
    <!-- 阿里镜像 -->
            <id>alimaven</id>
            <mirrorOf>central</mirrorOf>
            <name>aliyun maven</name>
            <url>http://maven.aliyun.com/nexus/content/repositories/central/</url>
        </mirror>
        <mirror>
            <id>alimaven</id>
            <name>aliyun maven</name>
            <url>http://maven.aliyun.com/nexus/content/groups/public/</url>
            <mirrorOf>central</mirrorOf>
        </mirror>
        <mirror>
            <id>central</id>
            <name>Maven Repository Switchboard</name>
            <url>http://repo1.maven.org/maven2/</url>
            <mirrorOf>central</mirrorOf>
        </mirror>
        <mirror>
            <id>repo2</id>
            <mirrorOf>central</mirrorOf>
            <name>Human Readable Name for this Mirror.</name>
            <url>http://repo2.maven.org/maven2/</url>
        </mirror>
        <mirror>
            <id>ibiblio</id>
            <mirrorOf>central</mirrorOf>
            <name>Human Readable Name for this Mirror.</name>
            <url>http://mirrors.ibiblio.org/pub/mirrors/maven2/</url>
        </mirror>
        <mirror>
            <id>jboss-public-repository-group</id>
            <mirrorOf>central</mirrorOf>
            <name>JBoss Public Repository Group</name>
            <url>http://repository.jboss.org/nexus/content/groups/public</url>
        </mirror>
        <mirror>
            <id>google-maven-central</id>
            <name>Google Maven Central</name>
            <url>https://maven-central.storage.googleapis.com
            </url>
            <mirrorOf>central</mirrorOf>
        </mirror>
        <!-- 中央仓库在中国的镜像 -->
        <mirror>
            <id>maven.net.cn</id>
            <name>oneof the central mirrors in china</name>
            <url>http://maven.net.cn/content/groups/public/</url>
            <mirrorOf>central</mirrorOf>
        </mirror>

添加后，再来尝试一下是否还有这个错误。

如果我的回答解决了你的疑惑，请采纳。祝：学习愉快~

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提问者慕先生3168773 #1

依旧没解决...

2020-02-20 13:17:19
提问者慕先生3168773 #2

Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.5 from/to alimaven (https://maven.aliyun.com/repository/central): Transfer failed for https://maven.aliyun.com/repository/central/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.pom

2020-02-20 13:49:00