java @Valid 注释在 spring boot 中不起作用
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@Valid annotation is not working in spring boot
提问by Ryan Zhu
Here is the scenario, a controller annotated with @RestControllerand a PUTmethod whose @RequestBodyargument needs to be validated. I use @Validannotation on the argument and @NotNull,@Minannotations on bean fields, but they are not working.
这是一个场景，一个用注释的控制器@RestController和一个需要验证参数的PUT方法@RequestBody。我@Valid在参数和 上使用注释@NotNull，@Min对 bean 字段使用注释，但它们不起作用。
Code is here:
代码在这里：
the Bean:
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;
}
the Controller
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);
}
}
The pom file:
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>
I have no idea what's wrong here... And I guess it's the problem that I use @Validand @Validatedannotations both on the same argument. But even though I omit the @Validatedannotation, the @Validis still not working...
我不知道这里出了什么问题......我想这是我在同一个论点上使用@Valid和@Validated注释的问题。但即使我省略了@Validated注释，@Valid仍然无法正常工作......
Any ideas?
有任何想法吗？
回答by Ryan Zhu
I figured it out... it's because the PurchaseWrapperValidatorwhich implements org.springframework.validation.Validatoroverrides the default javax.validation.*annotations.
我想通了......这是因为PurchaseWrapperValidator它实现了org.springframework.validation.Validator覆盖默认javax.validation.*注释。
