常用的正则表达式汇总

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整数

public static final String intege = "^-?[1-9]\\\\d*$/";          //整数
  
  /**  正例 */
  System.out.println(Pattern.matches(intege,"123")); // true
  System.out.println(Pattern.matches(intege,"-123")); // true
  
  /**   反例 */
  System.out.println(Pattern.matches(intege,"abc")); // false
  System.out.println(Pattern.matches(intege,"0")); // false

正整数

public static final String intege1 = "^[1-9]\\\\d*$/";          //正整数
  
  // 正例 
  System.out.println(Pattern.matches(intege1,"123")); // true
  
  //  反例 
  System.out.println(Pattern.matches(intege1,"-123")); // false
  System.out.println(Pattern.matches(intege1,"0")); // false

负整数

public static final String intege2 = "^-[1-9]\\\\d*$/";          //负整数

  
  // 正例 
  System.out.println(Pattern.matches(intege2,"-123")); // true
  
  // 反例 
  System.out.println(Pattern.matches(intege2,"123")); // false
  System.out.println(Pattern.matches(intege2,"0")); // false

数字

public static final String num = "^([+-]?)\\\\d*\\\\.?\\\\d+$/";      //数字
  
  // 正例 
  System.out.println(Pattern.matches(num,"123")); // true
  System.out.println(Pattern.matches("0")); // true
  
  // 反例 
  System.out.println(Pattern.matches(num,"a123")); // false

正数（正整数 + 0）

public static final String num1 = "^[1-9]\\\\d*|0$/";          //正数（正整数 + 0）
  
  // 正例 
  System.out.println(Pattern.matches(num1,"123")); // true
  System.out.println(Pattern.matches(num1,"0")); // true
  
  // 反例 
  System.out.println(Pattern.matches(num1,"-123")); // false

负数（负整数 + 0）

  public static final String num2 = "^-[1-9]\\\\d*|0$/";          //负数（负整数 + 0）
  
  // 正例 
  System.out.println(Pattern.matches(num2,"-123")); // true
  System.out.println(Pattern.matches(num2,"0")); // true
  
  // 反例 
  System.out.println(Pattern.matches(num2,"123")); // false

浮点数

public static final String decmal = "^([+-]?)\\\\d*\\\\.\\\\d+$/";      //浮点数
  
  // 正例 
  System.out.println(Pattern.matches(decmal,"-0.1")); // true
  System.out.println(Pattern.matches(decmal,"0.1")); // true
  
  // 反例 
  System.out.println(Pattern.matches(decmal,"a.b")); // false

正浮点数

public static final String decmal1 = "^[1-9]\\\\d*.\\\\d*|0.\\\\d*[1-9]\\\\d*$"; //正浮点数
  
  // 正例 
  System.out.println(Pattern.matches(decmal1,"0.1")); // true
  
  // 反例 
  System.out.println(Pattern.matches(decmal1,"-0.1")); // false

负浮点数

public static final String decmal2 = "^-([1-9]\\\\d*.\\\\d*|0.\\\\d*[1-9]\\\\d*)$"; //负浮点数
  
  // 正例 
  System.out.println(Pattern.matches(decmal2,"-0.1")); // true
  
  // 反例 
  System.out.println(Pattern.matches(decmal2,"0.1")); // false

浮点数

public static final String decmal3 = "^-?([1-9]\\\\d*.\\\\d*|0.\\\\d*[1-9]\\\\d*|0?.0+|0)$";//浮点数
  
  // 正例 
  System.out.println(Pattern.matches(decmal3,"-0.1")); // true
  System.out.println(Pattern.matches(decmal3,"0.1")); // true
  
  // 反例 
  System.out.println(Pattern.matches(decmal3,"a.b")); // false

非负浮点数（正浮点数 + 0）

public static final String decmal4 = "^[1-9]\\\\d*.\\\\d*|0.\\\\d*[1-9]\\\\d*|0?.0+|0$";  //非负浮点数（正浮点数 + 0）
  
  // 正例 
  System.out.println(Pattern.matches(decmal4,"0.1")); // true
  
  // 反例 
  System.out.println(Pattern.matches(decmal4,"-0.1")); // false

非正浮点数（负浮点数 + 0）

 public static final String decmal5 = "^(-([1-9]\\\\d*.\\\\d*|0.\\\\d*[1-9]\\\\d*))|0?.0+|0$"; //非正浮点数（负浮点数 + 0）
  
  // 正例 
  System.out.println(Pattern.matches(decmal5,"-0.1")); // true
  
  // 反例 
  System.out.println(Pattern.matches(decmal5,"0.1")); // false

邮箱地址

public static final String email = "^\\\\w+((-\\\\w+)|(\\\\.\\\\w+))*\\\\@[A-Za-z0-9]+((\\\\.|-)[A-Za-z0-9]+)*\\\\.[A-Za-z0-9]+$"; //邮件
  
  // 正例 
  System.out.println(Pattern.matches(email,"tom@gupaoedu.com")); // true
  
  // 反例 
  System.out.println(Pattern.matches(email,"tom.gupaoedu.com")); // false

颜色值匹配

public static final String color = "^[a-fA-F0-9]{6}$";        //颜色
  
  // 正例 
  System.out.println(Pattern.matches(color,"ffffff")); // true
  System.out.println(Pattern.matches(color,"FFFFFF")); // true
  
  // 反例 
  System.out.println(Pattern.matches(color,"#FFFFFF")); // false
  System.out.println(Pattern.matches(color,"white")); // false

url匹配

public static final String url = "^http[s]?:\\\\/\\\\/([\\\\w-]+\\\\.)+[\\\\w-]+([\\\\w-.\\\\/?%&=]*)?$";  //url
  
  // 正例 
  System.out.println(Pattern.matches(url,"http://www.xxx.com")); // true
  System.out.println(Pattern.matches(url,"https://www.xxx.com")); // true
  System.out.println(Pattern.matches(url,"www.xxx.com")); // true
  
  // 反例 
  System.out.println(Pattern.matches(url,"abcd")); // false

纯仅中文字符

public static final String chinese = "^[\\\\u4E00-\\\\u9FA5\\\\uF900-\\\\uFA2D]+$";          //仅中文
  
  // 正例 
  System.out.println(Pattern.matches(chinese,"汤姆弹架构")); // true
  
  // 反例 
  System.out.println(Pattern.matches(chinese,"Tom弹架构")); // false

仅ACSII字符

public static final String ascii = "^[\\\\x00-\\\\xFF]+$";        //仅ACSII字符
  
  // 正例 
  System.out.println(Pattern.matches(ascii,"abc123")); // true
  
  // 反例 
  System.out.println(Pattern.matches(ascii,"にそ①②③")); // false

邮政编码

public static final String zipcode = "^\\\\d{6}$";            //邮编
  
  // 正例 
  System.out.println(Pattern.matches(zipcode,"100000")); // true
  
  // 反例 
  System.out.println(Pattern.matches(zipcode,"1000000")); // false

国内手机号码

public static final String mobile = "^(13|15|16|17|18)[0-9]{9}$";        //手机
  
  // 正例 
  System.out.println(Pattern.matches(zipcode,"13800138000")); // true
  
  // 反例 
  System.out.println(Pattern.matches(zipcode,"19900010002")); // false

IP V4 地址

public static final String ip4 = "^(25[0-5]|2[0-4]\\\\d|[0-1]\\\\d{2}|[1-9]?\\\\d)\\\\.(25[0-5]|2[0-4]\\\\d|[0-1]\\\\d{2}|[1-9]?\\\\d)\\\\.(25[0-5]|2[0-4]\\\\d|[0-1]\\\\d{2}|[1-9]?\\\\d)\\\\.(25[0-5]|2[0-4]\\\\d|[0-1]\\\\d{2}|[1-9]?\\\\d)$";  //ip地址
  
  // 正例 
  System.out.println(Pattern.matches(zipcode,"127.0.0.1")); // true
  
  // 反例 
  System.out.println(Pattern.matches(zipcode,"aa.bb.cc.dd")); // false

非空字符

public static final String notempty = "^\\\\S+$";            //非空
  
  // 正例 
  System.out.println(Pattern.matches(notempty,"  abc ")); // true
  
  // 反例 
  System.out.println(Pattern.matches(notempty,"")); // false

图片后缀

public static final String picture = "(.*)\\\\.(jpg|bmp|gif|ico|pcx|jpeg|tif|png|raw|tga|JPG|BMP|GIF|ICO|PCX|JPEG|TIF|PNG|RAW|TGA)$";  //图片
  
  // 正例 
  System.out.println(Pattern.matches(picture,"tom.jpg")); // true
  
  // 反例 
  System.out.println(Pattern.matches(picture,"tom.txt"")); // false

音频后缀

public static final String audio = "(.*)\\\\.(mp3|wma|mid|midi|wav|vqf|MP3|WMA|MID|MIDI|WAV|VQF)$";  //音频
  
    // 正例 
  System.out.println(Pattern.matches(audio,"tom.mp3")); // true
  
  // 反例 
  System.out.println(Pattern.matches(audio,"tom.txt"")); // false

视频后缀

public static final String video = "(.*)\\\\.(rm|3gp|mp4|rmvb|avi|wmv|flv|vob|exe|mkv|swf|RM|3GP|MP4|RMVB|AVI|WMV|FLV|VOB|EXE|MKV|SWF)$"; // 视频格式
  
  // 正例 
  System.out.println(Pattern.matches(video,"tom.mp4")); // true
  
  // 反例 
  System.out.println(Pattern.matches(video,"tom.txt"")); // false

压缩文件后缀

public static final String rar = "(.*)\\\\.(rar|zip|7zip|tgz|RAR|ZIP|7ZIP|TGZ)$";  //压缩文件
  
  // 正例 
  System.out.println(Pattern.matches(rar,"tom.zip")); // true
  
  // 反例 
  System.out.println(Pattern.matches(rar,"tom.txt"")); // false

日期格式

  public static final String date = "^\\\\d{4}(\\\\-|\\\\/|\\\\.)\\\\d{1,2}\\\\1\\\\d{1,2}$";  //日期
  
  // 正例 
  System.out.println(Pattern.matches(date,"2024-10-24")); // true
  System.out.println(Pattern.matches(date,"2024/10/24")); // true
  
  // 反例 
  System.out.println(Pattern.matches(date,"2024年10月24日"")); // false

日期和时间格式

public static final String datetime = "^\\\\d{4}(\\\\-|\\\\/|\\\\.)\\\\d{1,2}\\\\1\\\\d{1,2}(\\\\s\\\\d{2}:)?(\\\\d{2}:)?(\\\\d{2})?$";  //日期和时间
  
  // 正例 
  System.out.println(Pattern.matches(datetime,"2024-10-24 23:59:59")); // true
  System.out.println(Pattern.matches(datetime,"2024/10/24 23:59:59")); // true
  
  // 反例 
  System.out.println(Pattern.matches(datetime,"2024年10月24日 23时59分59秒"")); // false

QQ号码


  public static final String qq = "^[1-9]*[1-9][0-9]*$";    //QQ号码
  
  // 正例 
  System.out.println(Pattern.matches(qq,"123456")); // true
  
  // 反例 
  System.out.println(Pattern.matches(qq,"1234567890")); // false

电话号码的函数(包括验证国内区号,国际区号,分机号)

public static final String tel = "^(([0\\\\+]\\\\d{2,3}-)?(0\\\\d{2,3})-)?(\\\\d{7,8})(-(\\\\d{3,}))?$";  //电话号码的函数(包括验证国内区号,国际区号,分机号)
  
  // 正例 
  System.out.println(Pattern.matches(tel,"010-1234567")); // true
  System.out.println(Pattern.matches(tel,"0100-12345678")); // true
  
  // 反例 
  System.out.println(Pattern.matches(tel,"13800138000")); // false

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