Replace Jfinal framework with SpringBoot framework

[sweep-ai[bot]]

PR Feedback (click)

• [ ] 👍 Sweep Did Well
• [ ] 👎 Sweep Needs Improvement

  Description

  This PR replaces the Jfinal framework with the SpringBoot framework in the jfinal-cms-shop repository. The Jfinal specific code has been refactored to use SpringBoot equivalents while maintaining the same code logic. The JPA framework has been implemented for database operations.

Summary of Changes

• Modified AttachmentService.java to replace Jfinal specific imports and methods with SpringBoot equivalents and implemented JPA framework.
• Modified ContentService.java to replace Jfinal specific imports and methods with SpringBoot equivalents and implemented JPA framework.
• Modified FieldService.java to replace Jfinal specific imports and methods with SpringBoot equivalents and implemented JPA framework.
• Modified LanmuService.java to replace Jfinal specific imports and methods with SpringBoot equivalents and implemented JPA framework.
• Modified ProductService.java to replace Jfinal specific imports and methods with SpringBoot equivalents and implemented JPA framework.
• Modified UserService.java to replace Jfinal specific imports and methods with SpringBoot equivalents and implemented JPA framework.

Please review the changes and merge this PR once approved.

Fixes #12.

---

🎉 Latest improvements to Sweep:

• Sweep can now passively improve your repository! Check out Rules to learn more.

---

💡 To get Sweep to edit this pull request, you can:

• Comment below, and Sweep can edit the entire PR
• Comment on a file, Sweep will only modify the commented file
• Edit the original issue to get Sweep to recreate the PR from scratch

[sweep-ai[bot]]

Rollback Files For Sweep

• [ ] Rollback changes to jfinal-cms/cms-service/src/main/java/com/gz/common/AttachmentService.java
• [ ] Rollback changes to jfinal-cms/cms-service/src/main/java/com/gz/common/AttachmentService.java
• [ ] Rollback changes to jfinal-cms/cms-service/src/main/java/com/gz/common/AttachmentService.java
• [ ] Rollback changes to jfinal-cms/cms-service/src/main/java/com/gz/common/AttachmentService.java

[sweep-ai[bot]]

Apply Sweep Rules to your PR?

• [ ] Apply: Leftover TODOs in the code should be handled.
• [ ] Apply: All new business logic should have corresponding unit tests in the tests/ directory.
• [ ] Apply: Any clearly inefficient or repeated code should be optimized or refactored.