C++博客-mysileng-随笔分类-Myeclipse

MyEclipseGen

鑫龙 — Sat, 28 Jul 2012 04:28:00 GMT

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

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, "5");

System.out.println("Serial:" + res);

reader.readLine();

} catch (IOException ex) {

}

鑫龙 2012-07-28 12:28 发表评论

Cannot find the declaration of element 'beans'异常的解决办法

鑫龙 — Mon, 16 Jul 2012 11:21:00 GMT

在网上搜了一下，发现有很多人提供了解决的办法，但我一一试过，最终都不行。
解决方案列表如下：
1、[分享]Spring启动异常: cvc-elt.1: Cannot find the declaration of element 'beans'
2、spring从sun jdk到IBMjdk

这两篇文章中都提供了各自的解决方法，但为何在我的应用中就是不行了？
其实不是不行，而是需要根据Spring的版本不同，进行不同的处理，刚好我用的是Spring2.5，所以解决起来需要另一种方法，即配置文件XML的头部的声明应该为：

xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns:aop="http://www.springframework.org/schema/aop"
         xmlns:tx="http://www.springframework.org/schema/tx"
         xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">

这段声明，是来自Spring2.5包中自带的Sample目录中的一些例子的代码中，当我把我的XML的头部改成这样以后，果然可以顺利启动。

鑫龙 2012-07-16 19:21 发表评论

Eclipse 报 “Exception in thread "main" java.lang.OutOfMemoryError: Java heap space ”错误

鑫龙 — Thu, 15 Sep 2011 01:21:00 GMT

若Eclipse 报 “Exception in thread "main" java.lang.OutOfMemoryError: Java heap space ”错误，我们可以通过一下方法进行处理：首先，打开Eclipse软件，选择菜单栏run,在二级菜单中选择 Debug Configurations，然后：在弹出的窗口中选择（x）=arguments选项卡，VM arguments中输入所需要的内存最大占用量，比如输入-Xmx800m即可。

鑫龙 2011-09-15 09:21 发表评论