SpringBoot case - department management - delete

After reading the interface document, you can know that the operation of deleting department information according to id, where id is a path parameter,

For the reception of path parameters, refer to the previous article Request Response - Reception of Path Parameters_Entropy 240 Blog-CSDN Blog

That is, use the annotation @PathVariable

Use the request annotation as @DeleteMapping

Functional interface development

Control layer (Controllre class)

The specific key codes are as follows:

    /**
     * 根据id部门id删除部门信息
     *
     * @param id
     * @return
     */
    @DeleteMapping("/depts/{id}")// id为一个路径参数
    public Result deleteByID(@PathVariable Integer id) {
        log.info("根据id删除部门信息：{}", id);
        deptService.deleteByID(id);
        return Result.success();
    }

Business layer (Service class)

The specific key codes are as follows:

business interface

    /**
     * 根据id删除部门信息
     * @param id
     */
    void deleteByID(Integer id);

Realize the business interface

    @Override
    public void deleteByID(Integer id) {
        deptMapper.deleteByID(id);
    }

Persistence layer (Mapper class)

The specific key codes are as follows:

    /**
     * 根据id删除部门信息
     * @param id
     */
    @Delete("delete from dept where id =#{id}")
    void deleteByID(Integer id);

interface test

Still use postman for interface testing. After starting the SpringBoot project, send a delete request in postman .

Delete the department information with id=1, id is the path parameter

The specific operation results are as follows

perfect run successfully

Front-end and back-end joint debugging

Still after running the provided nginx file, visit

http://localhost:90/http://localhost:90/

The results of the visit are as follows:

Among them, I clicked the delete button and successfully deleted a department.