代码只是随机生成指定字数的中文字，如果用于姓名无法满足第一个字为合理的姓氏

代码如下：

import java.util.Random;

public class Random_str {

public static String RandomJianHan(int len) {

String ret = "";

for (int i = 0; i < len; i++) {

String str = null;

int hightPos, lowPos; // 定义高低位

Random random = new Random();

hightPos = (176 + Math.abs(random.nextInt(39))); // 获取高位值

lowPos = (161 + Math.abs(random.nextInt(93))); // 获取低位值

byte[] b = new byte[2];

b[0] = (new Integer(hightPos).byteValue());

b[1] = (new Integer(lowPos).byteValue());

try {

str = new String(b, "GBk"); // 转成中文

} catch (UnsupportedEncodingException ex) {

ex.printStackTrace();

}

ret += str;

}

return ret;

}

}

Random_str ran = new Random_str();

String content1 =  ran.RandomJianHan(3); //此处生成的是长度为3的字符串

vars.put("xmsf_newname",content1);