使用Maven生成Eclipselink 2.5元模型
使用Maven生成Eclipselink 2.5元模型
提问于 2013-06-30 06:00:36
我想知道如何使用Maven和Eclipselink 2.5生成静态元模型。在运行Eclipselink2.4时，通过将以下代码行添加到pom.xml中，它工作得很好。
// Generate meta model for eclipselink 2.4 (does not work for 2.5)
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>1.3.1</version>
<executions>
<execution>
<id>process</id>
<goals>
<goal>process</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<compilerArguments>-Aeclipselink.persistencexml=src/main/resources/META-INF/persistence.xml</compilerArguments>
<processors>
<processor>org.eclipse.persistence.internal.jpa.modelgen.CanonicalModelProcessor</processor>
</processors>
<outputDirectory>${project.build.directory}/generated-sources/meta-model</outputDirectory>
</configuration>
</execution>
</executions>
</plugin>但从2.4开始似乎有一些变化，因为我得到了以下错误：
[INFO] javac option: -proc:only
[INFO] javac option: -Aeclipselink.persistencexml=src/main/resources/META-INF/persistence.xml
[INFO] javac option: -processor
[INFO] javac option: org.eclipse.persistence.internal.jpa.modelgen.CanonicalModelProcessor
[INFO] javac option: -s
[INFO] javac option: /home/asdf/target/generated-sources/meta-model
[INFO] diagnostic error: Annotation processor 'org.eclipse.persistence.internal.jpa.modelgen.CanonicalModelProcessor' not found
[INFO] diagnostic warning: Annotation processing without compilation requested but no processors were found.
[ERROR] execute error
java.lang.Exception: error during compilation
at org.bsc.maven.plugin.processor.AbstractAnnotationProcessorMojo.executeWithExceptionsHandled(AbstractAnnotationProcessorMojo.java:183)
at org.bsc.maven.plugin.processor.AbstractAnnotationProcessorMojo.execute(AbstractAnnotationProcessorMojo.java:96)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)你们能在外面帮我吗？
B.R
回答 4
Stack Overflow用户
发布于 2014-04-08 14:36:54
为了使配置更简单，我建议您测试：https://github.com/ethlo/eclipselink-maven-plugin。您甚至不需要保留更新的persistence.xml文件。
<plugin>
<groupId>com.ethlo.persistence.tools</groupId>
<artifactId>eclipselink-maven-plugin</artifactId>
<version>[version]</version>
<executions>
<execution>
<id>weave</id>
<phase>process-classes</phase>
<goals>
<goal>weave</goal>
</goals>
</execution>
<execution>
<id>modelgen</id>
<phase>generate-sources</phase>
<goals>
<goal>modelgen</goal>
</goals>
</execution>
</executions>
</plugin>注意:我是这个插件的作者。
Stack Overflow用户
发布于 2013-08-21 19:10:40
您可能会收到以下错误：
java.lang.RuntimeException: java.lang.SecurityException: class "org.eclipse.persistence.internal.jpa.modelgen.CanonicalModelProperties"'s signer information does not match signer information of other classes in the same package
由于未解决的错误快照，目前必须将版本设置为2.5.0- compilation is broken, modelgen jar is signed in maven repository。
Stack Overflow用户
发布于 2017-08-30 16:08:44
2017年更新：
这个问题的主要答案现在已经过时了。您现在需要执行以下步骤才能使其正常工作。
1)导入所需的依赖：
<!-- https://mvnrepository.com/artifact/org.eclipse.persistence/org.eclipse.persistence.jpa.modelgen.processor -->
<dependency>
<groupId>org.eclipse.persistence</groupId>
<artifactId>org.eclipse.persistence.jpa.modelgen.processor</artifactId>
<version>2.5.2</version>
<scope>compile</scope>
</dependency>2)指定persistence.xml位置(这是EL错误的变通方法。请注意，您的路径可能与本例中指定的路径不同)：
<build>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<executions>
<execution>
<id>default-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
[...]
</executions>
<configuration>
<source>1.7</source>
<target>1.7</target>
<compilerArgs>
<arg>-Aeclipselink.persistencexml=src/main/resources/META-INF/persistence.xml</arg>
</compilerArgs>
</configuration>
</plugins>
[...]
</pluginManagement>
[...]
</build>3)最后参考以下项目，以便使用Maven的新生命周期映射触发执行：Usage of maven Build Helper Maven Plugin
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/17385092
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