全角转半角

public static String formatString(String input) { char[] c = input.toCharArray(); for (int i = 0; i < c.length; i++) { if (c[i] == 12288) { c[i] = (char) 32; continue; } if (c[i] > 65280 && c[i] < 65375) c[i] = (char) (c[i] - 65248); } String newStr = new String(c);return newStr; }