隨機生成指定字數的簡體漢字

[Java]代碼    

import java.io.UnsupportedEncodingException;
import java.util.Random;

/**
 *
 * @ClassName: ChineseUtil
 * @Description: 隨機生成漢字
 * @author 王君義
 * @date 2015-5-8 下午9:22:06
 *
 */
public class ChineseUtil {
    /**
     * @Title: getChinese
     * @Description:隨機生成指定字數的簡體漢字
     * @param len
     * @return String    
     *
     */
    public static String generateChinese(int len) {
        String ret = "";
        for (int i = 0; i < len; i++) {
            String str = null;
            int hightPos, lowPos; // 定義高低位
            Random random = new Random();
            hightPos = (176 + Math.abs(random.nextInt(39))); //獲取高位值
            lowPos = (161 + Math.abs(random.nextInt(93))); //獲取低位值
            byte[] b = new byte[2];
            b[0] = (new Integer(hightPos).byteValue());
            b[1] = (new Integer(lowPos).byteValue());
            try {
                str = new String(b, "GBk"); //轉成中文
            } catch (UnsupportedEncodingException ex) {
                ex.printStackTrace();
            }
            ret += str;
        }
        return ret;
    }

}