經常使用正則驗證工具類

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private static final String mobile = "^(13|15|18|17|16)[0-9]{9}$";

private static final String codeAndMobile = "^\\+[0-9]{2}\\-(13|15|18|17|16)[0-9]{9}$";

/**整數*/
private static final String intege="^-?[1-9]\\d*$";	
/** 正整數*/
private static final String intege1="^[1-9]\\d*$";					
/** 負整數*/
private static final String intege2="^-[1-9]\\d*$";					
/** 數字*/
private static final String num="^([+-]?)\\d*\\.?\\d+$";			
/** 正數（正整數 + 0）*/
private static final String num1="^[1-9]\\d*|0$";					
/** 負數（負整數 + 0）*/
private static final String num2="^-[1-9]\\d*|0$";					
/** 浮點數*/
private static final String decmal="^([+-]?)\\d*\\.\\d+$";			
/** 正浮點數*/
private static final String decmal1="^[1-9]\\d*.\\d*|0.\\d*[1-9]\\d*$";	
/** 負浮點數*/
private static final String decmal2="^-([1-9]\\d*.\\d*|0.\\d*[1-9]\\d*)$";
/** 浮點數*/
private static final String decmal3="^-?([1-9]\\d*.\\d*|0.\\d*[1-9]\\d*|0?.0+|0)$"; 
/** 非負浮點數（正浮點數 + 0）*/
private static final String decmal4="^[1-9]\\d*.\\d*|0.\\d*[1-9]\\d*|0?.0+|0$"; 
/**非正浮點數（負浮點數 + 0） */
private static final String decmal5="^(-([1-9]\\d*.\\d*|0.\\d*[1-9]\\d*))|0?.0+|0$";
/** 郵件*/
private static final String email="^\\w+((-\\w+)|(\\.\\w+))*\\@[A-Za-z0-9]+((\\.|-)[A-Za-z0-9]+)*\\.[A-Za-z0-9]+$"; 
/** 顏色*/
private static final String color="^[a-fA-F0-9]{6}$";				
/** url*/
private static final String url="^http[s]?=\\/\\/([\\w-]+\\.)+[\\w-]+([\\w-./?%&=]*)?$";	
/** 僅中文*/
private static final String chinese="^[\\u4E00-\\u9FA5\\uF900-\\uFA2D]+$";					
/** 僅ACSII字符*/
private static final String ascii="^[\\x00-\\xFF]+$";				
/**郵編 */
private static final String zipcode="^\\d{6}$";						
/** ip地址*/
private 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)$";	
/** 非空*/
private static final String notempty="^\\S+$";						
/**圖片 */
private static final String picture="(.*)\\.(jpg|bmp|gif|ico|pcx|jpeg|tif|png|raw|tga)$";	
/** 壓縮文件*/
private static final String rar="(.*)\\.(rar|zip|7zip|tgz)$";								
/** 日期*/
private static final String date="^\\d{4}(\\-|\\/|\\.)\\d{1,2}\\1\\d{1,2}$";					
/** QQ號碼*/
private static final String qq="^[1-9]*[1-9][0-9]*$";				
/** 電話號碼的函數(包括驗證國內區號;國際區號;分機號)*/
private static final String tel="^(([0\\+]\\d{2,3}-)?(0\\d{2,3})-)?(\\d{7,8})(-(\\d{1,}))?$";	
/** 用來用戶註冊。匹配由數字、26個英文字母或者下劃線組成的字符串*/
private static final String username="^\\w+$";						
/** 字母*/
private static final String letter="^[A-Za-z]+$";					
private static final String letterAndSpace="^[A-Za-z ]+$";					
/** 大寫字母*/
private static final String letter_u="^[A-Z]+$";					
/** 小寫字母*/
private static final String letter_l="^[a-z]+$";					
/** 身份證*/
private static final String idcard="^[1-9]([0-9]{14}|[0-9]{17})$";	
/**判斷字符串是否爲浮點數*/
private static final String isFloat="^[-]?\\d+(\\.\\d+)?$";
/**判斷字符串是否爲正浮點數*/
private static final String isUFloat="^\\d+(\\.\\d+)?$";
/**判斷是不是整數*/
private static final String isInteger="^[-]?\\d+$";
/**判斷是不是正整數*/
private static final String isUInteger="^\\d+$";
/**判斷車輛Vin碼*/
private static final String isCarVin="^[1234567890WERTYUPASDFGHJKLZXCVBNM]{13}[0-9]{4}$";
/** 手機號 */
public static boolean isMobile(String input){
	return matches(mobile, input);
}
public static boolean isCodeAndMobile(String input){
	return matches(codeAndMobile, input);
}
/** 整數 */
public static boolean isIntege(String input){
	return matches(intege, input);
}
/** 正整數 */
public static boolean isintege1(String input){
	return matches(intege1, input);
}
/** 負整數*/
public static boolean isIntege2(String input){
	return matches(intege2, input);
}
/** 數字 */
public static boolean isNum(String input){
	return matches(num, input);
}
/** 正數（正整數 + 0） */
public static boolean isNum1(String input){
	return matches(num1, input);
}
/** 負數（負整數 + 0）*/
public static boolean isNum2(String input){
	return matches(num2, input);
}
/** 浮點數*/
public static boolean isDecmal(String input){
	return matches(decmal, input);
}
/** 正浮點數*/
public static boolean isDecmal1(String input){
	return matches(decmal1, input);
}
/** 負浮點數*/
public static boolean isDecmal2(String input){
	return matches(decmal2, input);
}
/**浮點數 */
public static boolean isDecmal3(String input){
	return matches(decmal3, input);
}
/** 非負浮點數（正浮點數 + 0）*/
public static boolean isDecmal4(String input){
	return matches(decmal4, input);
}
/** 非正浮點數（負浮點數 + 0）*/
public static boolean isDecmal5(String input){
	return matches(decmal5, input);
}
/** 郵件*/
public static boolean isEmail(String input){
	return matches(email, input);
}
/** 顏色*/
public static boolean isColor(String input){
	return matches(color, input);
}
/** url*/
public static boolean isUrl(String input){
	return matches(url, input);
}
/** 中文*/
public static boolean isChinese(String input){
	return matches(chinese, input);
}
/** ascii碼*/
public static boolean isAscii(String input){
	return matches(ascii, input);
}
/** 郵編*/
public static boolean isZipcode(String input){
	return matches(zipcode, input);
}
/** IP地址*/
public static boolean isIP4(String input){
	return matches(ip4, input);
}
/** 非空*/
public static boolean isNotEmpty(String input){
	return matches(notempty, input);
}
/** 圖片*/
public static boolean isPicture(String input){
	return matches(picture, input);
}
/** 壓縮文件*/
public static boolean isRar(String input){
	return matches(rar, input);
}
/** 日期*/
public static boolean isDate(String input){
	return matches(date, input);
}
/** qq*/
public static boolean isQQ(String input){
	return matches(qq, input);
}
/** 電話號碼的函數(包括驗證國內區號;國際區號;分機號)*/
public static boolean isTel(String input){
	return matches(tel, input);
}
/** 用來用戶註冊。匹配由數字、26個英文字母或者下劃線組成的字符串*/
public static boolean isUserName(String input){
	return matches(username, input);
}
/**字母*/
public static boolean isLetter(String input){
	return matches(letter, input);
}
public static boolean isLetterAndSpace(String input){
	return matches(letterAndSpace, input);
}
/** 小寫字母*/
public static boolean isLowLetter(String input){
	return matches(letter_l, input);
}
/** 大寫字母*/
public static boolean isUpperLetter(String input){
	return matches(letter_u, input);
}
/** 身份證*/
public static boolean isIDCard(String input){
	return matches(idcard, input);
}
public static boolean isFloat(String input){
	return matches(isFloat, input);
}
public static boolean isUFloat(String input){
	return matches(isUFloat, input);
}
public static boolean isInteger(String input){
	return matches(isInteger, input);
}
public static boolean isUInteger(String input){
	return matches(isUInteger, input);
}

public static boolean isCarVin(String carVin){
	return matches(isCarVin, carVin);
}

public static boolean matches(String regex,String input){
	if(StringUtils.isBlank(input)) return false;
	if(input.matches(regex))return true;
	return false;
}
public static void main(String[] args) {
	/*System.out.println(isInteger("1"));
	System.out.println(isInteger("0"));
	System.out.println(isInteger("-1"));
	System.out.println(isInteger("1.0"));
	System.out.println("--------------------");
	System.out.println(isUInteger("-1"));
	System.out.println(isUInteger("0"));
	System.out.println(isUInteger("10"));
	System.out.println(isUInteger("1.3"));*/
	System.out.println(isLetterAndSpace("tai  wan"));
	
}

`