C# 從基本開始

Ver 2010

Blogger 設定

【置頂文】
進入 設計 → 版面配置 → 新增小工具 → 選擇「文字」即可。

【標題加上外部連結】
進入 設計 → 設定 → 其他 → 啟用標題連結與附件連結，選擇「是」即可。

java.lang.NoSuchMethodError

錯誤訊息： 嚴重的: Servlet.service() for servlet jsp threw exception java.lang.NoSuchMethodError: org.apache.tools.zip.ZipEntry: method ()V not found 原因： 因為不同版本的jar檔，同時存在於系統中。

畫面隱藏按鈕

<script type="text/javascript">form1.按鈕名稱.style.display='none';</script>

POI Exception

錯誤訊息：
java.lang.IllegalArgumentException: Invalid column index (256).  Allowable column range for BIFF8 is (0..255) or ('A'..'IV')

event.keyCode 鍵值大全

系統資源不足，無法完成要求的服務。

java switch-case

錯誤：case expressions must be constant expressions
原因：因為case必須是常數，不能是變數

【IE】Debug ASP，顯示詳細的錯誤訊息

EmEditor Configurations 組態、設定

【IE】嵌入Google Map，卻出現憑證有錯誤的內容

Subclipse 無法update to HEAD

無法登入MS SQL

需要啟動3個服務 (cmd下執行)
服務顯示名稱：SQL Server
sc start MSSQL$SQLSERVER2008

服務顯示名稱：SQL Server Analysis Services (SQLSERVER2008)(SQLSERVER2008)
sc start MSOLAP$SQLSERVER2008

服務顯示名稱：SQL Full-text Filter Daemon Launcher (SQLSERVER2008)
sc start MSSQLFDLauncher$SQLSERVER2008

依IP address來呈現畫面

String subAddr = request.getLocalAddr().substring(request.getLocalAddr().lastIndexOf(".")+1);
String siteNum = "";
if("98".equals(subAddr)) {
siteNum = "(1)";
} else if("99".equals(subAddr)) {
siteNum = "(2)";
}
System.out.println(" >>"+request.getLocalName());
System.out.println("::"+request.getServerName());

itext & jxl實現PDF、CSV、Excel格式的文件下載

參考來源

好文給個讚

J2SE 參考文章

Java 各版本的差異

First (JDK 1.0) edition

    Objects. Inheritance. Interfaces. Graphics. AWT. Applets. Data Structures. Streams. Multithreading. Network programming.

Second (JDK 1.02) edition

    Additional topics: Object streams. JDBC. RMI. Native methods.

Third (JDK 1.1) Edition

    Split into a two volume set. Additional topics in volume 1: Inner classes. Events. Printing. JAR files. In volume 2: Security. Signed applets. Advanced AWT. JavaBeans.

Fourth (Java SE 1.2) Edition

    Moved streams to volume 1. Additional topics in volume 1: Swing. Java Plug-In. All examples have been rewritten to use Swing. Additional topics in volume 2: 2D Graphics. Advanced Swing components. Container classes.

Fifth (Java SE 1.3/1.4) Edition

    Rewrite of first six chapters. Proxies. Additional debugging tips. Moved some Swing components from volume 2. Code with line numbers. Figures more UML compliant. More Unix/Linux coverage. Removed corejava package.

Sixth (Java SE 1.4) Edition

    Added coverage of 1.4 features: Logging, regular expressions, NIO file channels, preferences API, Java Web Start,  formatted text fields,  new focus architecture, more events (mouse wheel etc.), new frame functionality, spinners, spring layouts, assertions. Numerous bug fixes and updates throughout all chapters.

Seventh (Java SE 5.0) Edition

    Added coverage of 5.0 features: Generic classes, autoboxing, varargs, enumerated types, annotations, java.util.concurrent. Numerous bug fixes and updates throughout all chapters.

8th (Java SE 6) Edition

    Coverage of Java SE 6 features. Collections and multithreading moved to volume 1. New material on Swing and AWT enhancements, compiler and scripting APIs. Numerous bug fixes and updates throughout all chapters.

參考來源1
參考來源2

產生Javadoc出現錯誤 unmappable character for encoding MS950

VM option：-encoding utf-8 -charset utf-8
在VM option填入後Finish，即可解決。

清除按鈕功能

不需要被清除的field
clearDefault="初始值" 或 <script type="text/javascript">form1.fieldName.clearDefault="初始值";</script>
清除按鈕 onclick="clearValue();"

function clearValue(){
 for(var i=0; i<document.forms[0].elements.length; i++){
  obj = document.forms[0].elements[i];
  if("field_Q" == obj.className){
   if( undefined == obj.clearDefault ){
    if("text" == obj.type) {
     obj.value = "";
    } else if("checkbox" == obj.type) {
     obj.checked = false;
    } else if("radio" == obj.type) {
     obj.checked = false;
    } else if("select" == obj.type) {
     obj.selectedIndex = 0;
    }
   } else {
    if("text" == obj.type) {
      obj.value = obj.clearDefault;
    } else if("checkbox" == obj.type) {
     if(obj.value == obj.clearDefault) obj.checked = true;
    } else if("radio" == obj.type) {
     if(obj.value == obj.clearDefault) obj.checked = true;
    } else if("select" == obj.type) {
     obj.options.value = obj.clearDefault;
    }
   }
  }
 }
}

不需要下面list，不需要執行queryAll()

將整個queryone()的JSP展開。
<div id="formContainer"> 改成 <div id="formContainerAll">

【IE8】開啟新索引標籤，無法顯示已關閉的索引標籤、使用 InPrivate 瀏覽、使用 [加速器]等選項，會出現錯誤

IE8 開啟新索引標籤，找不到元素tabswelcome.htm的解決方法：
開始 → 執行 → 打入regedit，然後確定 → 找到
HKEY_CLASSES_ROOT\TypeLib\{EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}\1.1\0\win32

如果右邊預設值顯示 C:\WINDOWS\system32\shdocvw.dll
將它修改為 C:\WINDOWS\system32\ieframe.dll

參考來源

Win 2K、XP 錯誤編號詳解

參考資料：Windows 2000/Xp 錯誤編號詳解、Windows Support Center

Windows 2000/Xp 錯誤編號詳解（收集整理）

【MEMO】Learn Android Remark