类属性校验

spring 中校验参数的快捷方式

public class ValidatorUtils {
    private static Validator validator;

    static {
        validator = Validation.buildDefaultValidatorFactory().getValidator();
    }

    public static void validateEntity(Object object, Class<?>... groups)
            throws CustomeException {
        Set<ConstraintViolation<Object>> constraintViolations = validator.validate(object, groups);
        if (!constraintViolations.isEmpty()) {
            StringBuilder msg = new StringBuilder();
            for(ConstraintViolation<Object> constraint:  constraintViolations){
                msg.append(constraint.getMessage()).append(",");
            }
            throw new CustomeException(msg.toString());
        }
    }
}
//在系统entity 类的属性上标识   hibernate validator 注解标识 即可
//例如
@Data
@TableName("sys_user")
public class SysUserEntity implements Serializable {
    private static final long serialVersionUID = 1L;
    /**
     * 用户ID
     */
    @TableId
    private Long userId;

    /**
     * 用户名
     */
    @NotBlank(message="用户名不能为空", groups = {AddGroup.class, UpdateGroup.class})
    private String username;

    /**
     * 密码
     */
    @NotBlank(message="密码不能为空", groups = AddGroup.class)
    private String password;

    /**
     * 盐
     */
    private String salt;

    /**
     * 邮箱
     */
    @NotBlank(message="邮箱不能为空", groups = {AddGroup.class, UpdateGroup.class})
    @Email(message="邮箱格式不正确", groups = {AddGroup.class, UpdateGroup.class})
    private String email;

    /**
     * 手机号
     */
    private String mobile;

    /**
     * 状态  0：禁用   1：正常
     */
    private Integer status;

    /**
     * 角色ID列表
     */
    @TableField(exist=false)
    private List<Long> roleIdList;

    /**
     * 创建者ID
     */
    private Long createUserId;

    /**
     * 创建时间
     */
    private Date createTime;

} 

1.其中在controller 中校验user validateEntity方法传入user对象 即可进行校验
2.groups 在属性注解中可以添加分组 调用validateEntity传入分组可以指定规则进行校验