JSR303数据校验

public interface AddGroup {
}

public interface UpdateGroup {
}

@Data
@TableName("pms_brand")
public class BrandEntity implements Serializable {
	private static final long serialVersionUID = 1L;

	/**
	 * 品牌id
	 */
	@NotNull(message = "修改必须指定品牌id",groups = UpdateGroup.class)
    @Null(message = "新增不能指定id",groups = AddGroup.class)
	@TableId
	private Long brandId;
	/**
	 * 品牌名
	 */
	@NotBlank(message = "品牌名必须提交",groups = {AddGroup.class,UpdateGroup.class})
	private String name;
	/**
	 * 品牌logo地址
	 */
	@NotEmpty(groups = AddGroup.class)
	@URL(message = "logo必须是一个url地址",groups = {AddGroup.class,UpdateGroup.class})
	private String logo;
	/**
	 * 介绍
	 */
	private String descript;
	/**
	 * 显示状态[0-不显示；1-显示]
	 */
	@ListValue(vals = {0,1},groups = {UpdateStatusGroup.class})
	@NotNull
	private Integer showStatus;
	/**
	 * 检索首字母
	 */
    @NotEmpty(groups = AddGroup.class)
    @Pattern(regexp = "^[a-zA-Z]$",message = "检索首字母必须是首字母",groups = {AddGroup.class,UpdateGroup.class})
	private String firstLetter;
	/**
	 * 排序
	 */
    @NotEmpty(groups = AddGroup.class)
	@Min(value = 0,message = "排序必须大于等于0",groups = {AddGroup.class,UpdateGroup.class})
	private Integer sort;

}

    /**
     * 保存
     */
    @RequestMapping("/save")
    public R save(@Validated({  AddGroup.class })@RequestBody BrandEntity brand, BindingResult result){
 
        if(result.hasErrors()){
            //1.获取校验错误的结果
            Map<String, String> map = new HashMap<>();
            result.getFieldErrors().forEach((item)->{
           //FieldError获取到错误的提示
           String message = item.getDefaultMessage();
            //获取错误的属性的名字
           String field = item.getField();
           map.put(field,message);
           System.out.println("******");
       });
            return R.error(400,"提交的数据不合法").put("data",map);
        }
            brandService.save(brand);
            return R.ok();
 
 
    }

    /**
     * 修改
     */
    @RequestMapping("/update")
    public R update(@Validated(UpdateGroup.class)@RequestBody BrandEntity brand){
		brandService.updateById(brand);

        return R.ok();
    }