MyEclipse 六.x ,7.x 注册码生成代码

MyEclipse 6.x ,7.x 注册码生成代码

import java.util.Scanner;

public class MyEclipseKeyGen {
	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 im*ment for a first offense. Think about it; pay for a license, avoid prosecution, and feel better about yourself.";

	public MyEclipseKeyGen() {
	}

	public String getSerial(String subscriber, String licenseNum) {
		java.util.Calendar cal = java.util.Calendar.getInstance();// 获得当前日期
		cal.add(1, 3);// +3年
		cal.add(6, -1);// 当前日-1
		java.text.NumberFormat nf = new java.text.DecimalFormat("000");
		licenseNum = nf.format(Integer.valueOf(licenseNum));// licenseNum格式化成三位数字
		String verTime = new StringBuilder("-").append(
				new java.text.SimpleDateFormat("yyMMdd").format(cal.getTime()))
				.append("0").toString();// 日期
		String type = "YE3MP-";
		String need = new StringBuilder(subscriber.substring(0, 1))
				.append(type).append("300").append(licenseNum).append(verTime)
				.toString();// 初步注册信息
		String dx = new StringBuilder(need).append(LL).append(subscriber)
				.toString();
		int suf = this.decode(dx);// 编码初步注册信息
		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();// 把s转化为单个字符数组
		j = 0;
		k = ac.length;
		while (j < k) {
			i = (31 * i) + ac[j];// 加密算法，不理解为什么这样子？有可能就是这样子定义的
			j++;
		}
		return Math.abs(i);// 取绝对值
	}

	private String change(String s) {
		byte[] abyte0;
		char[] ac = null;
		int i;
		int k;
		int j;
		abyte0 = s.getBytes();
		ac = new char[abyte0.length];
		i = 0;
		k = abyte0.length;
		while (i < k) {
			j = abyte0[i];
			if ((j >= 48) && (j <= 57))// 0-9,实现01234和56789相应的相互对调，也即0与5对调，1与6对调
			{
				j = (((j - 48) + 5) % 10) + 48;
			} else if ((j >= 65) && (j <= 90))// A-Z
			{
				j = (((j - 65) + 13) % 26) + 65;
			} else if ((j >= 97) && (j <= 122))// a-z
			{
				j = (((j - 97) + 13) % 26) + 97;
			}
			ac[i] = (char) j;
			i++;
		}
		return String.valueOf(ac);
	}

	public static void main(String[] args) {
		// 输入中文会出现一些中文乱码问题
		// 输入中文，一个是由于工程设置的字符集有可能会出现乱码，第二个是后面的getBytes对不同的字符会出现不同的处理形式而导致的中文乱码

		System.out.print("请输入注册的用户名(不支持中文):");
		Scanner scanner = new Scanner(System.in);// 输入流
		String subscriber = scanner.nextLine();// 读下一行字符串
		MyEclipseKeyGen myeclipseKeyGen = new MyEclipseKeyGen();// 实例化
		String subscription_Code = myeclipseKeyGen.getSerial(subscriber, "1");// 后面的参数是一个数字类型的字符串,数字范围为0-999
		System.out.println("\n" + "MyEclipse注册码生成的结果如下" + "\n");
		System.out.println("Subscriber:" + subscriber);
		System.out.println("Subscription Code:" + subscription_Code);

	}
}

2 楼 zhq426 2011-07-05