在 Eclipse 中创建 Maven 项目时出现认证路径错误

Question

我正在尝试在 Eclipse Oxygen 中创建一个 Maven 项目，但出现错误。 这些是我所做的步骤：

1. 选择文件 -> 新建 -> Maven 项目。
2. 在弹出窗口中，选中“创建简单项目（跳过原型选择）”，然后选中“使用默认工作区位置”（将位置字段留空）。
3. 点击下一步。
4. “组 ID”输入“com.xyz”，“工件 ID”输入“测试”，“版本”输入“0.0.1-SNAPSHOT”，“包装”输入“jar”。
5. 将其余字段留空，单击完成。

项目创建时出错。 在工作区日志中，我可以看到以下内容：

    Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6

当我打开新创建的 pom.xml 时，可以看到一个错误：

Multiple annotations found at this line:
- CoreException: Could not calculate build plan: Plugin org.apache.maven.plugins:maven-compiler-plugin:3.1 or one of its dependencies could not be 
 resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-compiler-plugin:jar:3.1: ArtifactResolutionException: Failure to transfer 
 org.apache.maven.plugins:maven-compiler-plugin:pom:3.1 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be 
 reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-
 compiler-plugin:pom:3.1 from/to central (https://repo.maven.apache.org/maven2): sun.security.validator.ValidatorException: PKIX path building failed: 
 sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
- Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile (execution: default-
 testCompile, phase: test-compile)
- Failure to transfer org.apache.maven.plugins:maven-resources-plugin:pom:2.6 from https://repo.maven.apache.org/maven2 was cached in the local 
 repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact 
 org.apache.maven.plugins:maven-resources-plugin:pom:2.6 from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org
- Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (execution: default-compile, 
 phase: compile)

下面是我之前放在 settings.xml 中的内容，其中包含我在防火墙后面的代理设置。

    <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
                              https://maven.apache.org/xsd/settings-1.0.0.xsd">
    <localRepository/>
    <interactiveMode/>
    <usePluginRegistry/>
    <offline/>
    <pluginGroups/>
    <servers/>
    <mirrors/>
    <proxies>
            <proxy>
                    <id>example-proxy</id>
                    <active>true</active>
                    <protocol>http</protocol>
                    <host>xx.xx.xx.xx</host>
                    <port>80</port>
                    <username>xxxxxxxx</username>
                    <password>xxxxxxxx</password>
                    <nonProxyHosts>localhost|127.0.0.1</nonProxyHosts>
            </proxy>
    </proxies>
    <profiles/>
    <activeProfiles/>
</settings>

似乎我的主要问题与认证路径有关，如我从上述错误中提取的以下行所示。

sun.security.validator.ValidatorException: PKIX path building failed: 
 sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

那么我该如何解决这个认证路径错误呢？

Answer 1

在代理后面使用Maven和SSL的问题

这是看起来与您的问题类似的线程，您试图在该线程中尝试连接到https远程存储库-“ https://repo.maven.apache.org/maven2/ ”。 cacerts文件中通常不包含支持HTTPS连接的证书。

Answer 2

将 SSL 证书添加到您的 JDK，然后将其添加到 eclipse.ini

-Djavax.net.ssl.trustStore=C:\\Program Files\\Java\\jdk1.8.0_311\\jre\\lib\\security\\cacerts