springboot validator 常用校验注解

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.experimental.Accessors;
import org.hibernate.validator.constraints.Length;
import org.hibernate.validator.constraints.Range;

import javax.validation.constraints.*;
import java.util.Date;
import java.util.List;

@Data
@NoArgsConstructor
@AllArgsConstructor
//setter 返回 {@code this} 而不是 {@code void}。
@Accessors(chain = true)
public class TestDto {

    
    @NotNull(message = "id不能为空")
    private String id;

    @NotBlank(message = "姓名不能为空")
    @Length(min = 1,max = 4, message = "用户名不能超过4个字符")
    @Pattern(regexp = "^[\u4E00-\u9FA5A-Za-z0-9\*]*$", message = "用户昵称限制：最多4个字符，包含文字、字母和数字")
    private String name;


    
    @NotBlank(message = "手机号不能为空")
    @Pattern(regexp = "^[1][3,4,5,6,7,8,9][0-9]{9}$", message = "手机号格式有误")
    private String mobile;

    
    @NotBlank(message = "联系邮箱不能为空")
    @Email(message = "邮箱格式不对")
    private String email;

    
    @Future(message = "时间必须是将来时间")
    private Date createTime;

    // 销售日期（格式：yyyy-MM-dd）
    @Length(max = 20, message = "autoBoughtTime不超过{max}个字符")
    @Pattern(regexp = "^\d{4}-\d{2}-\d{2}$", message = "autoBoughtTime格式必须为yyyy-MM-dd")
    private String autoBoughtTime;

    @Range(min = 60,max = 80,message = "年龄必须要60到80之间,60=<年龄=<80")
    private int age;

    @Pattern(regexp = "^(\d{18,18}|\d{15,15}|(\d{17,17}[x|X]))$", message = "身份证格式错误")
    private String idCard;

    
    @NotNull(message = "list不能为空")
    @Size(min = 1, message = "list大小不可为0")
    private List list;

}

hibernate-validator和validation-api

    org.hibernate.validator
    hibernate-validator
    6.0.14.Final
    compile



    javax.validation
    validation-api
    2.0.1.Final
    compile

如果已经有了spring-boot-starter-web，就不用再单独引入了

构建校验器，对参数做检验

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


public class ValidatorUtils {

    private ValidatorUtils() { }

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

    
    public static void validateEntity(Object object, Class... groups) throws RRException {
        Set> constraintViolations = validator.validate(object, groups);

        if (!constraintViolations.isEmpty()) {
            Iterator> iterator = constraintViolations.iterator();
            StringBuilder msg = new StringBuilder();
            while (iterator.hasNext()) {
                ConstraintViolation