java string 判斷中文漢字及中文字元__系統營運

java string 判斷中文漢字及中文字元:

 

package com.boco.synchrodata.util;

public final class StringUtil {

 /**
  * 根據Unicode編碼判斷中文漢字和符號
  * @param c
  * @return
  */
 private static boolean isChinese(char c) {
  Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
  if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
    || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
    || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
    || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B
    || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
    || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS
    || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION) {

   return true;
  }
  return false;

 }

 /**
  * 完整的判斷中文漢字和符號
  * @param strName
  * @return
  */
    public static boolean isChinese(String strName) {
        char[] ch = strName.toCharArray();
        for (int i = 0; i < ch.length; i++) {
            char c = ch[i];
            if (isChinese(c)) {
                return true;
            }
        }
        return false;

    }

    /**
     * 判斷包含中文數目
     * @param str
     * @return
     */
    public static long lenWithChinese(String str) {
     //去掉中文符號(jdk1.5)
     final String _str = str.replaceAll("[\\pP‘’“”]", "");
     
     long count = 0;
     char[] ch = _str.toCharArray();
        for (int i = 0; i < ch.length; i++) {
            char c = ch[i];
            if (isChinese(c)) {
             count++;
            }
        }
        return count;
    }

 /**
  * @param args
  */
 public static void main(String[] args) {

 }

}