一尘不染

@Valid注释在Spring Boot中不起作用

spring-boot

这是方案,带有注释的控制器@RestController和需要验证PUT@RequestBody参数的方法。我@Valid在参数上使用了注释@NotNull@Min在bean字段上使用了注释,但是它们不起作用。

代码在这里:

豆:

public class PurchaseWrapper {
  @DecimalMin(value = "0.00",message = "discount must be positive")
  @NotNull
  private BigDecimal discount;
  @NotNull
  private Long merchandiseId;
  @NotNull
  private Long addressId;
  @Min(1)
  @NotNull
  private Integer count;
}

控制器

@RestController
@RequestMapping("merchandises")
public class MerchandiseController {

@RequestMapping(value = "purchase",method = RequestMethod.PUT)
public ResponseEntity<RestEntity> purchase(@Valid @Validated @RequestBody PurchaseWrapper purchaseWrapper,
                                           @RequestParam String token){
    return new ResponseEntity<>(merchandiseService.purchase(purchaseWrapper,token),HttpStatus.OK);
}

@Autowired
PurchaseWrapperValidator purchaseWrapperValidator;

@InitBinder(value = "purchaseWrapper")
protected void initBinder(WebDataBinder binder) {
    binder.setValidator(purchaseWrapperValidator);
}
}

pom文件:

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    <dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
    </dependency>

我不知道这是怎么回事…而且我猜这是我在同一个参数上使用@Valid@Validated注释都存在的问题。但是,即使我省略了@Validated注释,@Valid它仍然无法正常工作…

有任何想法吗?


阅读 4246

收藏
2020-05-30

共1个答案

一尘不染

我想通了…这是因为PurchaseWrapperValidator实现的功能org.springframework.validation.Validator会覆盖默认javax.validation.*注释。

2020-05-30