package com;
import java.util.*;
public class Ran {
public static void main(String[] args) {
// TODO Auto-generated method stub
Random r=new Random(new Date().getTime()+100);
System.out.println(r.nextInt(10000));
System.out.println("生成的汉字为:"+getChinese());
}
public static String getChinese(){
Random random=new Random();
String ctmp="";
String[] rBase={"0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"};
//生成第一位区码
int r1=random.nextInt(3)+11;
String str_r1=rBase[r1];
//生成第二位区码
int r2;
if(r1==13){
r2=random.nextInt(7);
}else{
r2=random.nextInt(16);
}
String str_r2=rBase[r2];
//第三位的位码
int r3=random.nextInt(6)+10;
String str_r3=rBase[r3];
//第四位的位码
int r4;
if(r3==10){
r4=random.nextInt(15)+1;
}else if(r3==15){
r4=random.nextInt(15);
}else{
r4=random.nextInt(16);
}
String str_r4=rBase[r4];
byte[] bytes=new byte[2]; //定义二维数组,用以保存汉字
String str_r12=str_r1+str_r2;
int tempLow=Integer.parseInt(str_r12,16);
bytes[0]=(byte)tempLow;
String str_r34=str_r3+str_r4;
int tempHigh=Integer.parseInt(str_r34,16);
bytes[1]=(byte)tempHigh;
ctmp=new String(bytes);
return ctmp;
}
}
随机生成的汉字可以用来作为验证码,记录在这里,方便以后要用 。