spring-mvc-boot-6 comes Verification

Data validation he parameter controls the use of the common mechanism -WebDataBinder

WebDataBinder mechanism [authentication parameters acquisition parameters --- --- --- Conversion Parameters Controller

springMVC support for JSR-303 annotations verification, support for custom validation.

[1] is introduced using jar: validation-api-1.0.0.GA.jar: JDK interface; hibernate-validator-4.2.0.Final.jar achieve the above interface;
2. [Handling] @NotNull ( message = "id can not be blank") @Min (value = 1, message = " minimum to 1")
add annotations @Valid + parameters to be verified on the results obtained [3] the method and @Valid --- objects need to pass BindingResult

 public Object getCardInfoDetailtemp(@Valid CardInfoDTO info,BindingResult bindingResult)    
  {
        OutputObjectCSF obj = new OutputObjectCSF();
          if (bindingResult.hasErrors()) {
            obj.setRtnCode(ReturnInfoEnums.PROCESS_PARAMETER_ERROR.getCode());
            obj.setRtnMsg(bindingResult.getAllErrors().get(0).getDefaultMessage());
            return obj;
        }
        return obj;
    }

Example 4

POJO

//数据验证测试
@Data
@Component
public class User {

    @NotNull(message = "id不能为空")
    private Long id;

    //@Future(message = "时间只能是未来")
    @Past(message = "时间只能是过去")
    @DateTimeFormat(pattern = "yyyy-MM-dd") //格式转换
    private Date date;

    @DecimalMax(value = "100000.00",message = "不能超过100000") //最大值
    @DecimalMin(value = "0.1",message = "不能小于0.1")  //最小值
    private Double money;

    //@Range(min = 1,max = 100)  //1-100之间的范围内
    @Max(100) //最大值
    @Min(1)  //最小值
    private Integer age;

    //message: 格式不正确时返回信息
    @Email(message = "邮箱格式错误")
    private String email;

    @Size(min = 5,max = 50) //字符串长度范围
    private String size;

}

data verification


    /**
     * 数据验证
     *  @Valid: 表示需要开启验证这个实体
     * @param user
     * @param errors 错误信息,由springMVC验证之后自动填充
     * @return
     */
    @GetMapping("/vaild")
    public Map<String,Object> vaildUser(@Valid @RequestBody User user, Errors errors){
        Map<String,Object> result=new HashMap<>();
        //获取验证结果
        errors.getAllErrors().stream().forEach(x->{
            String key=null;
            if(x instanceof FieldError){ //字段错误
                FieldError fe= (FieldError) x;
                key=fe.getField();
            }else{  //非字段错误
                key=x.getObjectName();
                String defaultMessage = x.getDefaultMessage();
            }
            result.put(key,x.getDefaultMessage());
        });
        return result;
    }

spring-mvc-boot-6 comes Verification

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