Java Hibernate验证返回无效字段

Question

我在我的项目中使用Java Hibernate的Validation注释。我想验证我收到的数据并返回一组无效字段。这可能吗？

让我们说我有一个名为Car的

public class Car {

    @NotNull
    private String manufacturer;

    @NotNull
    @Size(min = 2, max = 14)
    @CheckCase(CaseMode.UPPER)
    private String licensePlate;

    @Min(2)
    private int seatCount;

    public Car ( String manufacturer, String licencePlate, int seatCount ) {
        this.manufacturer = manufacturer;
        this.licensePlate = licencePlate;
        this.seatCount = seatCount;
    }

    //getters and setters ...
}

让我们说我创造了一辆新车：

Car c = new Car("AUDI", NULL, 1);

这不应该是可能的，因为应该填写车牌并且座位数应该大于或等于2.所以我想返回两个元素的数组，说车牌和座位数无效（如果可能的话，附上额外的消息）。

Answer 1

如ElmerCat所述，您的构造函数应定义为：

public Car (
  @NotNull String manufacturer,
  @NotNull @Size(min = 2, max = 14) @CheckCase(CaseMode.UPPER) String licensePlate,
  @Min(2) int seatCount) {
    this.manufacturer = manufacturer;
    this.licensePlate = licensePlate;
    this.seatCount = seatCount;
}