Myeclipse破解的其中之一方法

1.在Myeclipse中建一个普通的Java项目，建个类，类名为MyEclipseGen(随便取)

2.粘贴以下代码：

 1 import java.io.*;
 2 
 3 public class MyEclipseGen {
 4     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.";
 5 
 6     public String getSerial(String userId, String licenseNum) {
 7         java.util.Calendar cal = java.util.Calendar.getInstance();
 8         cal.add(1, 3);
 9         cal.add(6, -1);
10         java.text.NumberFormat nf = new java.text.DecimalFormat("000");
11         licenseNum = nf.format(Integer.valueOf(licenseNum));
12         String verTime = new StringBuilder("-").append(
13                 new java.text.SimpleDateFormat("yyMMdd").format(cal.getTime()))
14                 .append("0").toString();
15         String type = "YE3MP-";
16         String need = new StringBuilder(userId.substring(0, 1)).append(type)
17                 .append("300").append(licenseNum).append(verTime).toString();
18         String dx = new StringBuilder(need).append(LL).append(userId)
19                 .toString();
20         int suf = this.decode(dx);
21         String code = new StringBuilder(need).append(String.valueOf(suf))
22                 .toString();
23         return this.change(code);
24     }
25 
26     private int decode(String s) {
27         int i;
28         char[] ac;
29         int j;
30         int k;
31         i = 0;
32         ac = s.toCharArray();
33         j = 0;
34         k = ac.length;
35         while (j < k) {
36             i = (31 * i) + ac[j];
37             j++;
38         }
39         return Math.abs(i);
40     }
41 
42     private String change(String s) {
43         byte[] abyte0;
44         char[] ac;
45         int i;
46         int k;
47         int j;
48         abyte0 = s.getBytes();
49         ac = new char[s.length()];
50         i = 0;
51         k = abyte0.length;
52         while (i < k) {
53             j = abyte0[i];
54             if ((j >= 48) && (j <= 57)) {
55                 j = (((j - 48) + 5) % 10) + 48;
56             } else if ((j >= 65) && (j <= 90)) {
57                 j = (((j - 65) + 13) % 26) + 65;
58             } else if ((j >= 97) && (j <= 122)) {
59                 j = (((j - 97) + 13) % 26) + 97;
60             }
61             ac[i] = (char) j;
62             i++;
63         }
64         return String.valueOf(ac);
65     }
66 
67     public MyEclipseGen() {
68         super();
69     }
70 
71     public static void main(String[] args) {
72         try {
73             System.out.println("please input register name:");
74             BufferedReader reader = new BufferedReader(new InputStreamReader(
75                     System.in));
76             String userId = null;
77             userId = reader.readLine();
78             MyEclipseGen myeclipsegen = new MyEclipseGen();
79             String res = myeclipsegen.getSerial(userId, "20");
80             System.out.println("Serial:" + res);
81             reader.readLine();
82         } catch (IOException ex) {
83         }
84     }
85 }

3.运行代码，随便输入注册名（字母）回车自动生成序列号

4.在Myeclipse工具中打开：Myeclipse-->Subscription Information