private static String getRandomChinese(){		Random random = new Random();		int code1,code2,code3,code4;//分别代表四个位码		String checkCode = "";		String[] rBase = {"0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"};		code1 = random.nextInt(3) +11;		String str_r1 = rBase[code1];//获得第一个位码		if(code1 == 13) {		code2 = random.nextInt(7);		}		else {		code2 = random.nextInt(16);		}		String str_r2 = rBase[code2];//第二个位码		code3 = random.nextInt(6) + 10;		String str_r3 = rBase[code3];//第三个位码		if(code3 == 10) {		code4 = random.nextInt(15) + 1;		}		else if(code3 ==15) {		code4 = random.nextInt(15);		}		else {		code4 = random.nextInt(16);		}		String str_r4 = rBase[code4];//第四个位码		byte[] bytes = new byte[2];		String str_r12 = str_r1 + str_r2;		int tempLow = Integer.parseInt(str_r12, 16);		bytes[0] = (byte) tempLow;//低位字节		String str_r34 = str_r3 + str_r4;		int tempHigh = Integer.parseInt(str_r34, 16);		bytes[1] = (byte) tempHigh;//高位字节		checkCode = new String(bytes);//生成汉字		return checkCode;		}