Question

我试图在一个新的 Spring 工程中使用 QueryDsl 。我新到 QuryDsl, 并且非常新到 maven 和 Spring, 所以我可能错过了相当基本的东西, 但我无法获得 QueryDsl / Maven-apt-plugin 来生成我的 Q 类。 Querydsl 引用听起来很简单; 我认为我做了它所说的:

我配置了 pom. xml :

<plugin>
  <groupId>com.mysema.maven</groupId>
  <artifactId>maven-apt-plugin</artifactId>
  <version>1.0.3</version>
  <executions>
    <execution>
      <goals>
        <goal>process</goal>
      </goals>
      <configuration>
        <outputDirectory>target/generated-sources/java</outputDirectory>
        <processor>com.mysema.query.apt.jpa.JPAAnnotationProcessor</processor>
      </configuration>
    </execution>
  </executions>
</plugin>

并且:

<repository>
  <id>QUERYDSL</id>
  <url>http://source.mysema.com/maven2/releases</url>
  <layout>default</layout>
</repository>

并且:

    <dependency>
        <groupId>com.mysema.querydsl</groupId>
        <artifactId>querydsl-apt</artifactId>
        <version>2.5.0</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>com.mysema.querydsl</groupId>
        <artifactId>querydsl-jpa</artifactId>
        <version>2.5.0</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.6.1</version>
    </dependency>

我有两个@Enity在这个项目中。

mvn清洁装置不会导致目标/源/java/

我错过了什么?

我尝试了 mvn appt: process, 结果:

[ERROR] Failed to execute goal com.mysema.maven:maven-apt-plugin:1.0.3:process (default-cli) on project logging-implementation: Either processor or processors need to be given -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.mysema.maven:maven-apt-plugin:1.0.3:process (default-cli) on project logging-implementation: Either processor or processors need to be given
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)

有什么建议吗?

谢谢!

Answer 1

OK, I got it. I don t understand it (I m a Maven noob), but here s what worked: In the parent pom.xml, I have

<build>
  <pluginManagement>
    <plugins> 
      the maven-apt-plugin definition shown above 
    </plugin>
  <pluginManagement>
</build>

在项目S POM中,我有:

<build>
    <plugins> 
      the **exact same** maven-apt-plugin definition shown above 
    </plugin>
</build>

没有 & lt; plutin management> 级别 Betweeen; building> 和 < plutins>, 按照< a href=" http:// mojo.codehaus. org/apt-maven-plugin/plugin- info. html" rel= “ nofollow” > http://mojo.codehaus.org/apt-maven-plutin/plugin-info. html 的指示

Answer 2

您正在直接调用目标, 但配置是具体执行的。所以要么通过标准 Maven 生命周期使用 apapplit, 要么使配置常规化。

友情链接