[英]DTO validation in Spring Boot not working
我有一個帶有 POST 方法的 controller:
@RestController
@RequestMapping(value = "/creditDetails", produces = MediaType.APPLICATION_JSON_VALUE)
@RequiredArgsConstructor
@Validated
public class CreditDetailsController {
@ResponseStatus(HttpStatus.CREATED)
@PostMapping(consumes = MediaType.APPLICATION_JSON_VALUE)
public CreditDetailsResponse createCreditDetails(@RequestBody @Valid CreditDetailsRequestWithoutId request) {
return CreditDetailsResponse.convertToResponse(creditDetailsService.createCreditDetails(request));
}
}
和 DTO:
@Data
@JsonIgnoreProperties(ignoreUnknown = true)
public class CreditDetailsRequestWithoutId {
@DecimalMax("10_000_000")
private BigDecimal creditLimit;
@DecimalMin("0")
@DecimalMax("20")
private BigDecimal creditPercent;
private UUID bankId;
}
當我以 111% 的比例傳遞 CreditDetailsWithoutId 實例時,我沒有收到任何錯誤。 為什么我的驗證不起作用? 如果重要我用
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
<version>2.6.3</version>
</dependency>
嘗試將十進制值傳遞給@DecimalMin、@DecimalMax,:
@DecimalMax:字段或屬性的值必須是小於或等於value元素中數字的十進制值。 參考
@DecimalMin("0.0")
@DecimalMax("20.0")
private BigDecimal creditPercent;
稍后編輯:刪除@Data 並添加基本的 getter 和 setter 解決了我這邊的問題,希望它能起作用。
// @Data
@JsonIgnoreProperties(ignoreUnknown = true)
public class CreditDetailsRequestWithoutId {
@DecimalMax("1E+7")
private BigDecimal creditLimit;
@DecimalMin("0.0")
@DecimalMax("20.0")
private BigDecimal creditPercent;
public BigDecimal getCreditPercent(){
return creditPercent;
}
public void setCreditPercent(BigDecimal creditPercent){
this.creditPercent = creditPercent;
}
public BigDecimal getCreditLimit(){
return creditLimit;
}
public void setCreditLimit(BigDecimal creditLimit){
this.creditLimit = creditLimit;
}
}
您必須在您的 controller class 中添加 EexceptionHandler:
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
@ResponseStatus(HttpStatus.BAD_REQUEST)
@ExceptionHandler(MethodArgumentNotValidException.class)
public Map<String, String> handleValidationExceptions(MethodArgumentNotValidException ex) {
Map<String, String> errors = new HashMap<>();
ex.getBindingResult().getAllErrors().forEach((error) -> {
String fieldName = ((FieldError) error).getField();
String errorMessage = error.getDefaultMessage();
errors.put(fieldName, errorMessage);
});
return errors;
}
我剛剛撥打maven clean install
並開始驗證
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