Spring Data JPA-规格和Querydsl

问题描述

我正在尝试将QueryDSL与Spring Data集成到我现有的项目中，我尝试了不同的示例，现在我决定坚持使用此高级Spring数据JPA-规范和Querydsl .

I'm trying to integrate QueryDSL to my existing project with Spring Data, I've tried different samples and now I've decided to stick to this one Advanced Spring Data JPA - Specifications and Querydsl.

问题:当我作为Maven生成源运行项目时，出现此错误

Problem: when I run the project as Maven generate-sources I get this error

error: Annotation processor 'com.mysema.query.apt.jpa.JPAAnnotationProcessor' not found

我正在将该插件添加到我的pom.xml中，如博客文章所示:

I'm adding this plugin to my pom.xml as the blog post indicates:

<plugin>
  <groupId>com.mysema.maven</groupId>
  <artifactId>maven-apt-plugin</artifactId>
  <version>1.0</version>
  <executions>
    <execution>
      <phase>generate-sources</phase>
      <goals>
        <goal>process</goal>
      </goals>
      <configuration>
        <outputDirectory>target/generated-sources</outputDirectory>
        <processor>com.mysema.query.apt.jpa.JPAAnnotationProcessor</processor>
      </configuration>
    </execution>
  </executions>
</plugin>

和依赖项:

<dependency>
     <groupId>com.mysema.querydsl</groupId>
     <artifactId>querydsl-sql</artifactId>
     <version>3.6.9</version>
</dependency>

任何人都可以向我指出正确的方向，以解决该问题或如何将QueryDSL正确集成到我的项目中?预先感谢！

Can anyone point me in the right direction on how to solve this or how to properly integrate QueryDSL to my project ? Thanks in advance!

推荐答案

我可以使用 com.querydsl .apt.jpa.JPAAnnotationProcessor代替 com .mysema.query .apt.jpa.JPAAnnotationProcessor并通过如下更改依赖项:

The way I could make this work was using the com.querydsl.apt.jpa.JPAAnnotationProcessor instead of the com.mysema.query.apt.jpa.JPAAnnotationProcessor and by changing the dependencies as follow:

<dependency>
  <groupId>com.querydsl</groupId>
  <artifactId>querydsl-apt</artifactId>
  <version>4.0.6</version>
</dependency>
<dependency>
  <groupId>com.querydsl</groupId>
  <artifactId>querydsl-jpa</artifactId>
  <version>4.0.6</version>
</dependency>

插件最终如下:

<plugin>
  <groupId>com.mysema.maven</groupId>
  <artifactId>apt-maven-plugin</artifactId>
  <version>1.1.3</version>
  <executions>
    <execution>
      <phase>generate-sources</phase>
      <goals>
        <goal>process</goal>
      </goals>
      <configuration>
        <outputDirectory>${project.build.directory}/generated-sources</outputDirectory>
         <processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
      </configuration>
    </execution>
  </executions>
</plugin>

我还在命令行中的项目根目录 mvn eclipse:eclipse 中执行了该操作，以更新Eclipse以包含生成的源代码.

I also executed in the command line at the projects root mvn eclipse:eclipse to update Eclipse to include the generated sources.

更新:

将插件maven-apt-plugin替换为apt-maven-plugin，并将版本更改为1.1.3

Replaced the plugin maven-apt-plugin for apt-maven-plugin and changed version to 1.1.3

这篇关于Spring Data JPA-规格和Querydsl的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！