Java Full-width character turn half-width character

The 1.java code sometimes encounters security problems with code injection, and in order to prevent this, a filtering function is added. The main is to filter the full-width characters, the URL can not recognize the full-width characters converted to half-width characters

1  Public classTest {2      Public Static voidMain (string[] args) {3String t= "Ffac ※00☆№CCC";4 System.out.println (t);5 System.out.println (Tosemiangle (t));6     }7     8     /**9 * Full-width space is 12288, half-width space isTen * Other character half-width (33-126) and full-width (65281-65374) correspondence is: The difference between the 65248 One      *  A * Convert full-width characters in a string to half-width -      * @paramsrc Any string containing full-width to convert -      * @returnstring after conversion the      */ -      Public Staticstring Tosemiangle (string src) { -         Char[] C =Src.tochararray (); -          for(intindex = 0; Index < c.length; index++) { +             if(C[index] = = 12288) {//Full-width spaces -C[index] = (Char) 32; +}Else if(C[index] > 65280 && c[index] < 65375) {//other full-width characters AC[index] = (Char) (C[index]-65248); at             } -         } -         returnstring.valueof (c); -     } -}

Output Result:

FFAC ※00☆№CCC
FFAC ※00☆№CCC

Java Full-width character turn half-width character