Java 为什么 Maven 生成的源没有被编译？
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Why are Maven generated-sources not getting compiled?
提问by acsadam0404
I have a plugin which generates sources under the target/generated-sources/wrappersdirectory. It's wired into the generate-sources phase like this:
我有一个插件可以在target/generated-sources/wrappers目录下生成源代码。它像这样连接到 generate-sources 阶段：
<plugin>
<groupId>mygroupid</groupId>
<artifactId>myartifactid</artifactId>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>xml2java</goal>
</goals>
</execution>
</executions>
</plugin>
The problem is, when I use mvn deploythe .classfiles won't be placed in the jar. I see all the .javafiles there, but no .class.
问题是，当我使用mvn deploy这些.class文件时，不会将其放入 jar 中。我看到.java那里的所有文件，但没有.class.
I read all the issues around this problem, but couldn't figure out how to solve the problem. I'm using Maven 3.0.x.
我阅读了有关此问题的所有问题，但无法弄清楚如何解决该问题。我正在使用 Maven 3.0.x。
采纳答案by acsadam0404
The build-helper plugin indeed solved the problem. Thanks @Joe for the comment.
build-helper 插件确实解决了这个问题。感谢@Joe 的评论。
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>${project.build.directory}/generated-sources/wrappers</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
回答by Markus Per?bner
If you have written the plugin by yourself you can programatically add the path with the generated sources to the maven source paths.
如果您自己编写了插件，则可以以编程方式将带有生成源的路径添加到 maven 源路径中。
@Mojo(name = "generate")
public class MyCodegenMojo extends AbstractMojo {
@Parameter(defaultValue = "${project}")
private MavenProject project;
@Override
public void execute() throws MojoExecutionException, MojoFailureException{
// your generator code
project.addCompileSourceRoot("path/to/your/generated/sources");
}
}
For example the raml-jaxrs-codegen plugin uses this technique. See RamlJaxrsCodegenMojo.javafor more details.
例如 raml-jaxrs-codegen 插件就使用了这种技术。有关更多详细信息，请参阅RamlJaxrsCodegenMojo.java。
