Question

我正面临通过maven安装下载依赖项jar的问题。

从eclipse控制台，我可以说maven正试图从旧的中央存储库url下载jar：＆＃34; https://repo.maven.apache.org/maven2＆＃34;而不是＆＃34; http://repo1.maven.org/maven2/＆＃34;

我的pom.xml

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.xxxx</groupId>
  <artifactId>TestServices</artifactId>
  <version>7.0.3.6</version>
  <dependencies>
    <dependency>
        <groupId>javax.activation</groupId>
        <artifactId>activation</artifactId>
        <version>1.0.2</version>
        <scope>compile</scope>
    </dependency>
  </dependencies>

我的构建失败，出现以下错误消息：

[ERROR] Failed to execute goal on project 'xxxyyy': Could not resolve dependencies for project xxxyyy:jar:4.0.3.6: The following artifacts could not be resolved: org.codehaus:xstream:jar:1.3.1, gxs:ai:jar:0.5, javax.activation:activation:jar:1.0.2, com.oracle.jdbc:classes12:jar:9.2.0.5, org.eclipse.core:resources:jar:3.1.0, org.eclipse.core:runtime:jar:3.2.0.v20060603, org.eclipse.emf:common:jar:2.2.1.v200609210005, org.eclipse.emf:ecore:jar:2.2.1.v200609210005, org.eclipse.emf:ecore.xmi:jar:2.2.1.v200609210005, org.eclipse.equinox:common:jar:3.2.0.v20060603, org.eclipse:osgi:jar:3.2.1.R32x_v20060919, org.eclipse.wst.xml:core:jar:1.1.1.v200609210600, org.eclipse:xsd:jar:2.2.1.v200609210005, javax.mail:mail:jar:1.3.2, org.apache:log4j:jar:1.2.8: Failure to find org.codehaus:xstream:jar:1.3.1 in ${localRepo} was cached in the local repository, resolution will not be reattempted until the update interval of 'abcd' has elapsed or updates are forced -> [Help 1]

Answer 1

尝试添加此

 <repositories>
    <repository>
        <id>central</id>
        <url>http://repo1.maven.org/maven2/</url>
      </repository>
  </repositories>

并查看Maven Repositories

的此文档

并遵循文档：

存储库

存储库是Maven最强大的功能之一社区。默认的中央Maven存储库依然存在 https://repo.maven.apache.org/maven2/。工件的另一个来源还没有在iBiblio中是Codehaus快照回购。

Maven存储库默认Doc

Answer 2

更改存储库地址后：

 <repositories>
<repository>
    <id>central</id>
    <url>http://repo1.maven.org/maven2/</url>
  </repository>

您必须手动清理存储库中的每个以前缓存的数据，或者通过使用-U选项package -U

运行maven阶段（例如包）

-U表示强制更新所有依赖项。

为什么我的maven指向旧的中央存储库URL？

2 个答案: