Topic: Java Regular Expression for Filtering Special Characters

Topic: Java Regular Expression for Filtering Special Characters

 

// filter special characters
	public   static   String StringFilter(String   str)   throws   PatternSyntaxException   {   
                // only letters and numbers are allowed		
                // String   regEx  =  "[^a-zA-Z0-9]";                   
                   // clear all special characters
		  String regEx="[`~!@#$%^&*()+=|{}':;',\\[\\].<>/?~！@#￥%……&*（）——+|{}【】‘；：”“’。，、？]";
		  Pattern   p   =   Pattern.compile(regEx);   
		  Matches m = p.matches (str);   
		  return   m.replaceAll("").trim();   
		  }   
	@Test	    
	public    void   testStringFilter()   throws   PatternSyntaxException   {   
		  String str = "*adCVs*34_a _09_b5*[/435^*&chengchi()^$$&*).{}+.|.)%%*(*.China}34{45[]12.fd' *&999The following are Chinese characters ￥...{}[].,;'"'"?";   
		  System.out.println(str);   
		  System.out.println(StringFilter(str));   
		  }