运行MyEclipse，弹出“Subscription Key Information”框。
2
点击“Enter Subscription”,进入“Update Subscription”
3
输入Subscriber 和Subscription Code:
MaYong
ZLR8ZO-655444-54678656985359684
输入后页面没有报错，但是“Finish”也不能操作，说明注册码不正确。
4
整理别人提供的MyEclipseKey生成器，代码如下(代码格式有点混乱，可直接拷贝)：
import java.text.DecimalFormat;import java.text.NumberFormat;import java.text.SimpleDateFormat;import java.util.Calendar;
public class MyEclipseKeyGen { public static final void main(String[] args){ String subscriber = "tianshansangong"; //subscriber String licenseNum = "500"; //Number of Licenses String version = "100"; //版本号 String subscriptionCode = getSubscriptionCode(subscriber, version , licenseNum ,true); System.out.println(subscriptionCode); //gLR8ZO-655055-62677056522757051 } public static String getSubscriptionCode(String subscriber, String version, String licenseNum, boolean selected) { Calendar cal = Calendar.getInstance(); cal.add(1, 3); //年份加三年 cal.add(6, -1); //日期减一 //当前日期20141226，到期日期则为20171225 NumberFormat nf = new DecimalFormat("000"); licenseNum = nf.format(Integer.valueOf(licenseNum)); String verTime = selected ? (new StringBuffer("-")).append( (new SimpleDateFormat("yyMMdd")).format(cal.getTime())).append( "0").toString() : "-0812310"; String type = "YE3MB-"; String need = (new StringBuffer(String.valueOf(subscriber.substring(0, 1)))) .append(type).append(version).append(licenseNum) .append(verTime).toString(); String dx = (new StringBuffer(String.valueOf(need))) .append( "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.") .append(subscriber).toString(); int suf = decode(dx); String code = (new StringBuffer(String.valueOf(need))).append( String.valueOf(suf)).toString(); return change(code); } private static int decode(String s) { int i = 0; char ac[] = s.toCharArray(); int j = 0; for (int k = ac.length; j < k; j++) i = 31 * i + ac[j]; return Math.abs(i); } private static String change(String s) { byte abyte0[] = s.getBytes(); char ac[] = new char[s.length()]; int i = 0; for (int k = abyte0.length; i < k; i++) { int 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; } return String.valueOf(ac); }}
5
生成了
Subscriber：tianshansangong
Subscription Code：gLR8ZO-655055-62677056522757051
可直接拷贝这个使用
6
填入上面的窗口即可。
或者点击“window”->"Preferences"->MyEclipse Blue Edition->"Subscription"输入即可。
