11.新增和修改讲师接口开发

目录

一、自动填充封装

二、controller方法定义

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) {
        //fieldName为实体类中的属性名称
        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

    @ApiModelProperty(value = "创建时间")
    @TableField(fill = FieldFill.INSERT)
    private Date gmtCreate;

    @ApiModelProperty(value = "更新时间")
    @TableField(fill = FieldFill.INSERT_UPDATE)
    private Date gmtModified;

二、controller方法定义

1、新增

    //添加讲师接口的方法
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean save = teacherService.save(eduTeacher);
        if(save) {
            return R.ok();
        } else {
            return R.error();
        }
    }

2、根据讲师id进行查询

    //根据讲师id进行查询
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id) {
        EduTeacher eduTeacher = teacherService.getById(id);
        return R.ok().data("teacher",eduTeacher);
    }

3、讲师修改功能

    //讲师修改功能
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean flag = teacherService.updateById(eduTeacher);
        if(flag) {
            return R.ok();
        } else {
            return R.error();
        }
    }