JavaFX Maven 插件：在当前项目和插件组中找不到前缀“jfx”的插件

Question

我正在尝试在 Eclipse Maven 项目中为我的 JavaFX 应用程序创建一个可执行 jar。

我正在关注这个话题： JavaFx Application with Maven in Eclipse

还有这个教程： https://www.youtube.com/watch?v=wbjW8rYlook

我在尝试运行目标时遇到
No plugin found for prefix 'jfx' in the current project and in the plugin groups
错误：jfx:jar

完全构建错误：

[INFO] Scanning for projects...
[INFO] Downloading: https://repo.maven.apache.org/maven2/com/zenjava/javafx-maven-plugin/8.1.2/javafx-maven-plugin-8.1.2.pom
[WARNING] Failed to retrieve plugin descriptor for com.zenjava:javafx-maven-plugin:8.1.2: Plugin com.zenjava:javafx-maven-plugin:8.1.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for com.zenjava:javafx-maven-plugin:jar:8.1.2
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-release-plugin/2.3.2/maven-release-plugin-2.3.2.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-release-plugin:2.3.2: Plugin org.apache.maven.plugins:maven-release-plugin:2.3.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-release-plugin:jar:2.3.2
[INFO] Downloading: https://repo.maven.apache.org/maven2/com/zenjava/maven-metadata.xml
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-metadata.xml
[INFO] Downloading: https://repo.maven.apache.org/maven2/org/codehaus/mojo/maven-metadata.xml
[WARNING] Could not transfer metadata com.zenjava/maven-metadata.xml 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
[WARNING] Could not transfer metadata org.apache.maven.plugins/maven-metadata.xml 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
[WARNING] Could not transfer metadata org.codehaus.mojo/maven-metadata.xml 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
[WARNING] Failure to transfer com.zenjava/maven-metadata.xml 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 metadata com.zenjava/maven-metadata.xml 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
[WARNING] Failure to transfer org.apache.maven.plugins/maven-metadata.xml 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 metadata org.apache.maven.plugins/maven-metadata.xml 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
[WARNING] Failure to transfer org.codehaus.mojo/maven-metadata.xml 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 metadata org.codehaus.mojo/maven-metadata.xml 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
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.831 s
[INFO] Finished at: 2017-01-18T15:36:52+08:00
[INFO] Final Memory: 9M/22M
[INFO] ------------------------------------------------------------------------
[ERROR] No plugin found for prefix 'jfx' in the current project and in the plugin groups [com.zenjava, org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (C:\Users\alexismatunog\Documents\My Docs\03_OE\Java\workspace\Maven\m2\repository), central (https://repo.maven.apache.org/maven2)] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/NoPluginFoundForPrefixException

我已经尝试了以下方法来解决这个问题：
1.输入mvn clean install（构建成功）
2. 在settings.xml中添加<pluginGroup>com.zenjava</pluginGroup>

另外，我已经在 pom.xml 中添加了 <plugin> 节点

    <plugin>
        <groupId>com.zenjava</groupId>
        <artifactId>javafx-maven-plugin</artifactId>
        <version>8.1.2</version>
        <configuration>
            <mainClass>com.sample.MainApp</mainClass>
        </configuration>
    </plugin>

我该如何解决这个问题？

================================================ ============
更新 1：
按照 Jaydeep 的回答后，我在尝试打开 cacerts 文件后收到密码提示，无法继续进行。

================================================ ============
更新 2：
cacerts 的默认密码是“changeit”。 导入根证书后构建成功。 此外，我已按照 FibreFoX 的建议使用 jfx 插件版本 8.7.0 更新了我的 pom 文件。

Answer 1

您需要将您的网络 ssl 证书安装到您的 jre cacerts。

第 1 步：获取证书。

1. 使用 chrome 浏览器打开https://repo.maven.apache.org URL。
2. 点击查看证书
3. 选择链上最顶部的证书并拖放到桌面。

第 2 步：将证书安装到 cacerts

1. 打开命令提示符或终端并输入命令

mvn -版本

1. 获取 jre 的路径，在输入上述命令后会显示给您。
2. 下载this工具。
3. 在该工具中选择打开选项并导航到您在第 2 点抓取的路径。现在您位于 jre 文件夹中。打开 lib 文件夹。打开安全文件夹。(YOURMAVENJDKPATH/jre/lib/security/cacerts)
4. 选择位于该安全文件夹中的 cacerts 文件。现在您可以看到该工具中的所有证书。 工具会要求输入密码输入“changeit”（不带双引号字符串changeit是密码）
5. 找到导入证书图标并点击。
6. 选择您在步骤 1 中下载的证书。
7. 保存更改并关闭工具。

现在你的问题已经解决了。