新增和修改讲师接口开发

一、自动填充封装

1、在service-base模块中添加

创建包handler，创建自动填充类 MyMetaObjectHandler

@Component
public class MyMetaObjectHandler implements MetaObjectHandler {
    @Override
    public void insertFill(MetaObject metaObject) {
        this.setFieldValByName("gmtCreate", new Date(), metaObject);
        this.setFieldValByName("gmtModified", new Date(), metaObject);
    }
 
    @Override
    public void updateFill(MetaObject metaObject) {
        this.setFieldValByName("gmtModified", new Date(), metaObject);
 
    }
}

2、在实体类添加自动填充注解

二、controller方法定义

1、新增

@ApiOperation(value = "新增讲师")
@PostMapping
public R save(
  @ApiParam(name = "teacher", value = "讲师对象", required = true)
  @RequestBody Teacher teacher){
 
  teacherService.save(teacher);
  return R.ok();
}

2、根据id查询

@ApiOperation(value = "根据ID查询讲师")
@GetMapping("{id}")
public R getById(
   @ApiParam(name = "id", value = "讲师ID", required = true)
   @PathVariable String id){
 
   Teacher teacher = teacherService.getById(id);
   return R.ok().data("item", teacher);
}

3、根据id修改

@ApiOperation(value = "根据ID修改讲师")
@PutMapping("{id}")
public R updateById(
    @ApiParam(name = "id", value = "讲师ID", required = true)
    @PathVariable String id,
 
    @ApiParam(name = "teacher", value = "讲师对象", required = true)
    @RequestBody Teacher teacher){
 
    teacher.setId(id);
    teacherService.updateById(teacher);
    return R.ok();
}