Spring Bean Validation – JSR-303 Annotations（Spring Bean验证-JSR-303注释）

import lombok.Data;
import lombok.NoArgsConstructor;
import javax.validation.Valid;
import javax.validation.constraints.*;
import java.util.Date;
import java.util.List;


/**
* @ClassName Order
* @PackageName com.jsaisino.cma.bean
* @Description TODO
* @Author SealZhang
* @Date 2019-06-04 13:53
* @Version 1.0
*/

@Data
@NoArgsConstructor
public class Order {

    // 必须不为 null, 大小是 10
    @NotNull(message = "orderId必须不为null")
    @Size(min = 10, max = 10)
    private String orderId;


    // 必须是一个电子信箱地址
    @Email(message = "email必须是一个电子信箱地址")
    private String email;

    // 必须不为空
    @NotEmpty(message = "address必须不为空")
    private String address;


    @NotNull(message = "adultTaxType不能为空")
    @Min(value = 0, message = "adultTaxType 的最小值为0")
    @Max(value = 1, message = "adultTaxType 的最大值为1")
    private Integer adultTaxType;


    @NotNull(message = "reason信息不可以为空")
    @Pattern(regexp = "[1-7]{1}", message = "reason的类型值为1-7中的一个类型")
    private String reason;//订单取消原因


    @Valid   // 嵌套验证
    private List<Order>  order;
}

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import java.util.Set;

/**
 * @ClassName ValidateUtils
 * @PackageName com.jsaisino.cma.bean
 * @Description TODO
 * @Author SealZhang
 * @Date 2019-06-04 14:19
 * @Version 1.0
 */
public class ValidateUtils {
    /*
     * JSR303验证工具，校验参数
     */
    public static void validateParams(Object object) {
        Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
        Set<ConstraintViolation<Object>> violations = validator.validate(object);
        for(ConstraintViolation<Object> violation: violations) {
            System.out.println(violation.getPropertyPath()+"  --> 错误描述："+ violation.getMessage());
        }
    }
}

import java.util.ArrayList;
import java.util.List;

/**
 * @ClassName ValidateTest
 * @PackageName com.jsaisino.cma.bean
 * @Description TODO
 * @Author SealZhang
 * @Date 2019-06-04 14:29
 * @Version 1.0
 */
public class ValidateTest {

    public static void main(String[] args) {
        Order order = new Order();
        order.setOrderId("11");
        order.setEmail("createfly");
        order.setAddress("美国休斯敦");
        order.setAdultTaxType(4);

        Order order1 = new Order();
        order1.setOrderId("4");
        order1.setEmail("SealZhang");
        order1.setAddress("阿波罗11号登月");
        order1.setAdultTaxType(4);

        List<Order> list = new ArrayList<Order>();
        list.add(order1);
        order.setOrder(list);

        ValidateUtils.validateParams(order);
    }
}