java后端做正则验证

前言

在项目中,前端要对特殊字段做正则验证,后端也要对特殊的字段做正则验证和非空判断,在做正则的时候遇到了很多坑,今天就和大家分享。主要有以下几种方式：

环境

springboot1.5.x
jpa
java8

1.结合注解来正则来校验

正则表达式

package com.test.util;

/**
 * 描述：正则表达式格式
 */
public class RegexpProperties {
   
    public static final String MOBILE_PATTERN = "^$|0?(13|14|15|18|17)[0-9]{9}$";//手机号
    public static final String EMAIL_PATTERN = "^$|(\\w)+(\\.\\w+)*@(\\w)+((\\.\\w+)+)$";//邮箱
    public static final String FAX_PATTERN = "^$|(\\d{3,4}-)?\\d{7,8}$";//传值
    public static final String CREDIT_CODE_PATTERN = "^$|[a-zA-Z0-9]{18}$";//社会信用代码
}

实体类

package com.test.entity;

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonInclude;
import lombok.Getter;
import lombok.Setter;
import org.hibernate.annotations.DynamicInsert;
import org.hibernate.annotations.DynamicUpdate;
import org.hibernate.validator.constraints.Length;
import org.hibernate.validator.constraints.NotBlank;
import org.springframework.data.annotation.CreatedDate;
import org.springframework.data.annotation.LastModifiedBy;
import org.springframework.data.annotation.LastModifiedDate;
import org.springframework.data.jpa.domain.support.AuditingEntityListener;

import javax.persistence.*;
import javax.validation.constraints.Max;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Pattern;
import java.math.BigDecimal;
import java.sql.Timestamp;
import java.util.Date;

@Table(name = "company")
@Entity
@Getter
@Setter
@DynamicInsert//新增时空字段不去插入values
@DynamicUpdate//只跟新变化的字段,结合merge方法使用
@JsonInclude(JsonInclude.Include.NON_NULL)
@EntityListeners({
   AuditingEntityListener.class})
@JsonIgnoreProperties({
   "createDate", "modifyDate"})
public class Company implements BaseEntity{
   
    //BaseEntity 是实现序列化的,这个类我就不放进来了

    @Id
    @GeneratedValue
    private Integer id;
    @NotBlank(message = "企业名称不能为空")
    private String name;
    @NotBlank(message = "社会信用代码不能为空")
    @Pattern(regexp = RegexpProperties.CREDIT_CODE_PATTERN, message = "社会信用代码格式有误")
    private String creditCode;
    private String contactName;
    @Pattern(regexp = RegexpProperties.MOBILE_PATTERN, message = "电话格式有误")
    private String contactPhone;
    @Length(min = 0, max = 50, message = "企业法人长度不得超过50个字符")
    private String corporation;
    @Pattern(regexp = RegexpProperties.EMAIL_PATTERN, message = "邮箱格式有误")
    private String email;
    @Pattern(regexp = RegexpProperties.FAX_PATTERN, message = "传真格式有误")
    private String fax;
    private String address;
    @Min(value = 0, message = "占地面积不能小于0")
    private Double floorArea;
    private Integer attentionLevel;
    private Integer industryId;
    private String industryName;
    private Timestamp establishedDate;
    @Min(value = 0, message =