Spring 带有 bean 验证的 JPA 存储库：错误响应不佳

Question

我正在使用这样的模型对象：

@Entity
public class Address {

    @Id
    @GeneratedValue
    private long id;

    @NotNull
    @Size(min = 1, max = 20)
    private String location;

    @OneToOne(mappedBy = "address")
    private Person person;
}

有存储库

@RepositoryRestResource(collectionResourceRel = "address", path = "address")
public interface AddressRepository extends PagingAndSortingRepository<Address, Long> {

}

当我尝试 post 破坏 bean 约束的对象时，我得到一个糟糕的错误响应：

{"timestamp":"2018-10-05T14:48:23.667+0000","status":500,"error":"Internal Server Error","message":"Could not commit JPA transaction; nested exception is javax.persistence.RollbackException: Error while committing the transaction","path":"/address"}

如何在不自己实现每个 rest 控制器的情况下获得有用的错误消息？

Answer 1

定义控制器建议以全局处理异常，return您的自定义消息作为字符串或ErrorResponse对象（您可以在其中定义自己的属性）。

@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(RollbackException.class)
    @ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
    @ResponseBody
    public String handleRollbackException(RollbackException ex) {

        String errorMessage = "Your custom message";
        return errorMessage ;
    }

}

Spring 带有 bean 验证的 JPA 存储库：错误响应不佳

Spring JPA-Repository with bean validation: Poor error response

java

spring

spring-data

spring-data-jpa

spring-rest