Eclipse中无法通过Ctrl+Click下载CrudRepository源码——源码未找到

I’ve run into similar frustrating issues before with Eclipse not pulling in source jars automatically, even when STS works flawlessly. Let’s walk through targeted fixes that usually resolve this:

• Verify Eclipse’s core source download settings
  Head to Window > Preferences > Maven > Download Sources and ensure the "Download Artifact Sources" checkbox is ticked. Also, check Window > Preferences > Java > Editor > Hyperlinking to confirm "Open Declaration" is enabled—this is what powers the Ctrl+Click navigation to declarations.

• Force a full Maven dependency refresh
  Right-click your project → Maven > Update Project. Check the box for "Force Update of Snapshots/Releases" and hit OK. This tells Eclipse to ignore cached dependencies and re-fetch everything, including source jars, from scratch.

• Manually attach the source if automatic download fails
  If the above doesn’t work, locate the spring-data-jpa jar under your project’s Maven Dependencies folder. Right-click it → Properties > Java Source Attachment. You can either point it to a manually downloaded source jar or let Eclipse search for it via the "Workspace..." option.

• Clean and rebuild your project
  Corrupted build artifacts often mess with source linking. Go to Project > Clean..., select your project, and click OK. Then run mvn clean install via the Maven build menu to rebuild everything fresh.

• Check for workspace metadata corruption
  Sometimes Eclipse’s workspace metadata gets wonky. If all else fails, back up your workspace, delete the .metadata folder, restart Eclipse, and re-import your project. This is a last-resort fix but often clears persistent issues.

Also, double-check your pom.xml has the correct Spring Data JPA dependency (it should inherit from the Spring Boot parent if you’re using that, but confirmation never hurts):

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-jpa</artifactId>
</dependency>

内容的提问来源于stack exchange，提问作者ASharma7