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利用代码动态生成MyEclipse5.5注册码

2016-02-27 14:35 591 查看
首先将如下代码复制到MyEclipse中执行,然后控制台会出现:

please input register name:

接着就是输出注册码名字,例如admin,

下面就会生成注册码为:nLR8ZC-855575-6457715356623657。

控制台:

please input register name:

admin

Serial:nLR8ZC-855575-6457715356623657

 

代码:

 

import java.io.*;

public class ssda {

 private static final String LL = "Decompiling this copyrighted software is a violation of both your license agreement and the Digital Millenium Copyright Act of 1998 (http://www.loc.gov/copyright/legislation/dmca.pdf).
Under section 1204 of the DMCA, penalties range up to a $500,000 fine or up to five years imprisonment for a first offense. Think about it; pay for a license, avoid prosecution, and feel better about yourself.";

 //定义一个String字符串

 public String getSerial(String userId, String licenseNum)

 { 

  java.util.Calendar cal = java.util.Calendar.getInstance();  

  cal.add(1, 3);    

  cal.add(6, -1);

  java.text.NumberFormat nf = new java.text.DecimalFormat("000");   

  licenseNum = nf.format(Integer.valueOf(licenseNum));  

  String verTime = new StringBuilder("-").append(new java.text.  

  SimpleDateFormat("yyMMdd").format(cal.getTime())).append("0").toString();   

  String type = "YE3MP-";

  String need = new StringBuilder(userId.substring(0, 1)).append(type).append("300").append(licenseNum).append(verTime).toString();

  String dx = new StringBuilder(need).append(LL).append(userId).toString();

  int suf = this.decode(dx);

  String code = new StringBuilder(need).append(String.valueOf(suf)).toString();

  return this.change(code);

  }

 private int decode(String s) {

  int i;

  char[] ac;

  int j;

  int k;

  i = 0;

  ac = s.toCharArray();

  j = 0;

  k = ac.length;

  while (j < k) {

   i = (31 * i) + ac[j];

   j++;

   }

  return Math.abs(i);

  }

 private String change(String s) {

  byte[] abyte0;

  char[] ac;

  int i;

  int k; 

  int j;

  abyte0 = s.getBytes();

  ac = new char[s.length()];

  i = 0;

  k = abyte0.length;

  while (i < k) {

   j = abyte0[i];

   if ((j >= 48) && (j <= 57)) {

    j = (((j - 48) + 5) % 10) + 48;

    }

   else if ((j >= 65) && (j <= 90)) {

    j = (((j - 65) + 13) % 26) + 65;

    }

   else if ((j >= 97) && (j <= 122)) {

    j = (((j - 97) + 13) % 26) + 97;

    }

   ac[i] = (char) j;

   i++;

   }

  return String.valueOf(ac);

  }

 public ssda() {

  super();

  }  

 public static void main(String[] args) {

  try {

   System.out.println("please input register name:");

   BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

   String userId = null;

   userId = reader.readLine();

   ssda myeclipsegen = new ssda();

   String res = myeclipsegen.getSerial(userId, "20");

   System.out.println("Serial:" + res); //输出序列号信息

   reader.readLine();

   } catch (IOException ex) {

   }

 }

}
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