Java 计算含有汉字字符串长度

package com.youku.paycenter.admin.subGate.service.impl;

import java.io.UnsupportedEncodingException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class TestString
{

public static final String CHINESE_REG_EXP = "[u4e00-u9fa5]";

public static void main(String[] args) throws UnsupportedEncodingException
{
    String s = "故人西辞黄鹤楼，烟花三月下扬州；孤帆远影碧空尽，唯见长江天际流。故人西辞黄鹤楼，烟花三月下扬州；孤帆远影碧空尽，唯见长江天际流。故人西辞黄鹤楼，烟花三月下扬州；孤帆远影碧空尽，唯见长江天际流。故人西辞黄鹤楼，烟花三月下扬州；孤帆远影碧空尽，唯见长江天际流。故人西辞黄鹤楼，烟花三月下扬州；孤帆远影碧空尽，唯见长江天际流。故人西辞黄鹤楼，烟花三月下扬州；孤帆远影碧空尽，唯见长江天际流。故人西辞黄鹤楼，abc";

    if(isChineseChar(s))
    {
        char[] c_array = s.toCharArray();

        String c_string = null;

        byte[] c_byte_array;

        int chineseCount = 0;

        int normalCount = 0;

        for (char c : c_array)
        {
            c_string = Character.toString(c);

            c_byte_array = c_string.getBytes("UTF-8");

            if(c_byte_array.length>1)
            {
                chineseCount++;
            }
            else
            {
                normalCount++;
            }
        }

        System.out.println(chineseCount+normalCount);
    }
}

public static boolean isChineseChar(String str)
{

    if (str == null) return false;

    boolean temp = false;
    Pattern p = Pattern.compile(CHINESE_REG_EXP);
    Matcher m = p.matcher(str);
    if (m.find())
    {
        temp = true;
    }
    return temp;
}

}