MyEclipse_6.5.1GA_E3.3.2_Installer_註冊算法 – JAVA編程語言程序開發技術文章

[java]
package com.jadyer.util; 
 
import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.text.DecimalFormat; 
import java.text.NumberFormat; 
import java.text.SimpleDateFormat; 
import java.util.Calendar; 
 
/**
 * MyEclipse_6.5.1GA_E3.3.2_Installer_註冊算法
 * @create Oct 23, 2012 9:48:29 AM
 * @author 玄玉<https://blog.csdn/net/jadyer>
 */ 
public class MyEclipseGen { 
    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 (https://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."; 
     
    public String getSerial(String userId, String licenseNum) { 
        Calendar cal = Calendar.getInstance(); 
        cal.add(1, 3); 
        cal.add(6, -1); 
        NumberFormat nf = new DecimalFormat("000"); 
        licenseNum = nf.format(Integer.valueOf(licenseNum)); 
        String verTime = new StringBuilder("-").append(new 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 MyEclipseGen() { 
        super(); 
    } 
 
    public static void main(String[] args) throws IOException { 
        System.out.println("Please Input Register Name:"); 
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
        String serialNo = new MyEclipseGen().getSerial(br.readLine(), "1"); 
        br.close(); 
        System.out.println("Your SerialNo Is:[" + serialNo + "]"); 
    } 

發佈留言

發佈留言必須填寫的電子郵件地址不會公開。