Question

我使用带有Gradle的JHipster生成应用程序作为构建工具。

当我创建实体时，我添加了过滤支持，它生成了JPA静态元模型。但是IntelliJ并没有认识到元模型。

我已在IntelliJ上启用了注释处理器设置，但它似乎无法正常工作。

我需要更改哪些设置才能让IntelliJ识别JPA静态元模型？

Answer 1

不允许发表评论，但我想补充一下Thorben Janssen的答案。除了插件配置，我还必须将其添加到项目的依赖项中：

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-jpamodelgen</artifactId>
            <version>5.4.21.Final</version>
        </dependency>

这是在目标/生成源/注释路径中生成源的原因。

所以pom最终像这样：

    <dependencies>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-jpamodelgen</artifactId>
            <version>5.4.21.Final</version>
        </dependency>
        ...
    </dependencies>

    ...

    <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <version>3.2.0</version>
                <executions>
                    <execution>
                        <id>add-source</id>
                        <goals>
                            <goal>add-source</goal>
                        </goals>
                        <phase>generate-sources</phase>
                        <configuration>
                            <sources>
                                <source>target/generated-sources/annotations</source>
                            </sources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
        ...
    </build>

Answer 2

By default, the metamodel classes get generated into the /target/generated-sources/annotations folder. It seems like that folder isn't registered as a source folder.

You can either change that manually in your IDE or if you're using a Maven build, you can do that automatically by adding the following plugin to your build configuration:

<project>
    ...

    <build>
        <plugins>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <version>3.0.0</version>
                <executions>
                    <execution>
                        <id>add-source</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>add-source</goal>
                        </goals>
                        <configuration>
                            <sources>
                                <source>target/generated-sources/annotations</source>
                            </sources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    ...
</project>

I explained that in more details in one of my Hibernate Tips.

Answer 3

Intellij的构建识别此文件中列出的所有处理器：

META-INF /服务/ javax.annotation.processing.Processor

使用Eclipse Link的情况，请在文件中包含以下行：

org.eclipse.persistence.internal.jpa.modelgen.CanonicalModelProcessor

Case Hibernate：

org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor

确保您拥有所有依赖关系：我将使用maven进行描述，例如：

objects

OR

<dependency>
    <groupId>org.eclipse.persistence</groupId>
    <artifactId>org.eclipse.persistence.jpa.modelgen.processor</artifactId>
        <version>2.7.0</version>
        <scope>provided</scope>
</dependency>

Answer 4

要让IntelliJ IDEA识别生成的类，我必须在build.gradle上添加这一行

sourceSets {
    main.java.srcDirs += 'build/generated/source/apt/main'
}

<强>更新

更好的解决方案是修改IntelliJ插件

idea {
    module {
        sourceDirs += file("build/generated/source/apt/main")
        generatedSourceDirs += file("build/generated/source/apt/main")
    }
}

IntelliJ无法识别JPA Static Metamodel

4 个答案: