一、myeclipse每次啓動都提示註冊的解決方案
myeclipse註冊之後它會在當前用戶文檔下生成一個文件:.myeclipse.properties 在這裏面有註冊信息,假如這個文件不存在了或者這個文件中的信息不對 那麼就會提示註冊。我在使用時發現myeclipse使用過期後再次輸入註冊碼時並不會自動更新.myeclipse.properties文件的註冊信息,當myeclipse啓動讀取.myeclipse.properties文件中的註冊信息時發現已經過期所以會再次提示輸入註冊碼,可手動更新此文件的註冊信息防止每次啓動myeclipse時提示輸入註冊碼。該文件一般是生成在“我的文檔”的文件夾裏面。
打開該文件可以看到類似代碼:
#MyEclipse global properties
#Sat Oct 09 17:01:47 CST 2010
LICENSE_KEY=yLR8ZC-855575-60567456710161105
LICENSEE=lhx
其中LICENSE_KEY爲註冊碼,LICENSEE爲名稱,只要手動修改這兩個地方就可以了。
二、使用myeclipse自動生成註冊碼:
1、建立java Project,任意取個名字就行。2、建立一個名字爲MyEclipseGen的類文件,內容將在後面附上。3、運行該代碼,在控制檯中會出現:please input register name:4、隨便在控制檯打上一個名字,然後“enter”回車,控制檯會出現一列序列號,就是我們要的myeclipse註冊碼。
附源碼:
import java.io.*;
/**
* myeclipse 生成註冊碼
* @author lhx
*
*/
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 (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.";
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 MyEclipseGen() {
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();
MyEclipseGen myeclipsegen = new MyEclipseGen();
String res = myeclipsegen.getSerial(userId, "20");
System.out.println("Serial:" + res);
reader.readLine();
} catch (IOException ex) {
}
}
}