如何實現雙擊執行.class文件.(内空）

Execute a class from Windows Explorer
This HowTo will you show how to start a class (with a main() method) without opening a DOS Shell or using a JAR file directly from Windows Explorer.
Type the following VBScript using a text editor and save it as WRunJava.vbs. You need to save the script in the SendTo subdirectory located in the Windows directory (eg. on a Win98 system, it's C:\Windows\SendTo). Then in Window Explorer, locate a class file that can be executed (with a main() method). Right click on it, select the Send To menu and you should see an entry called WRunJava.vbs. Simply select it and the class should launched via javaw.exe . ' [WRunJava.vbs] start a java class without a consoleDim WSHShell, FSO, javaclass, javacompletepath, cmdlineSet WSHShell = WScript.CreateObject("WScript.Shell")
Set FSO = WScript.CreateObject("Scripting.FileSystemObject")If WScript.Arguments.Count = 0 Then
   WScript.Echo  "no argument on the command line."
Else
   javaclass = WScript.Arguments(0)
   If Not fso.GetExtensionName(javaclass) = "class" Then
      WScript.Echo "Not a java class! (" & javaclass & ")"
   Else
      javacompletepath = fso.GetAbsolutePathName(javaclass)
      javapath = fso.GetParentFolderName(javacompletepath)
      javaclass = fso.GetBaseName(javaclass)
      cmdline = "javaw.exe -cp " & javapath & " " & javaclass
      WSHShell.Run cmdline, 1, false
   End if
End IfSet WSHShell = Nothing
Set FSO = Nothing
WScript.Quit(0) You can have a second script to lauch a java class with a console (useful to see debugging traces). Called it CRunJava.vbs . Then you will have two choices from the SendTo menu. ' [CRunJava.vbs] start a java class with a consoleDim WSHShell, FSO, javaclass, javacompletepath, cmdlineSet WSHShell = WScript.CreateObject("WScript.Shell")
Set FSO = WScript.CreateObject("Scripting.FileSystemObject")If WScript.Arguments.Count = 0 Then
   WScript.Echo  "no argument on the command line."
Else
   javaclass = WScript.Arguments(0)
   If Not fso.GetExtensionName(javaclass) = "class" Then
      WScript.Echo "Not a java class! (" & javaclass & ")"
   Else
      javacompletepath = fso.GetAbsolutePathName(javaclass)
      javapath = fso.GetParentFolderName(javacompletepath)
      javaclass = fso.GetBaseName(javaclass)
      cmdline = "java.exe -cp " & javapath & " " & javaclass
      WSHShell.Run cmdline, 1, false
   End if
End IfSet WSHShell = Nothing
Set FSO = Nothing

最后一行陋了
WScript.Quit(0)

Thanks,但我要的是雙擊.
因該可以實現的。

楼上的说得对，把你的.class文件打包成.jar就可以了，如果你的程序不复杂，在jbuild5里面按提示搞很简单的。

我是想實現雙擊如同在DOS中執行：java xxx一樣的功能。　

如果你得程序是没有界面的，那我还没用过，建议你写个.bat应该可以解决。
如果是有界面的，用楼上的方法打个包，完全可以实现你说的要求，但如果你想用双击代替java ***命令，sorry，除了写批处理（.bat），没有方法。

http://www.csdn.net/expert/topic/389/389867.shtm
自己看看

@echo off
rem ---------------------------------------------------------------------------
rem 安装须知：预先安装了jdk，并设置了环境变量%java_home%、%path%、%classpath%
rem 笃行天下制作 http://hi.baidu.com/duxing 2010年5月18日8:42:24
rem 如果您更新了本文件，能分享给我吗？[email protected]
rem ---------------------------------------------------------------------------echo 运行前请确定您安装了jdk，并设置了环境变量%%java_home%%、%%path%%、%%classpath%%
echo.
if not "%java_home%" == "" goto build_runClass
echo 没有设置环境变量%java_home%,请设置后再安装!
echo.
goto over:build_runClass
echo 正在创建runClass.bat到%java_home% ...
echo.
echo @ECHO OFF >"%java_home%\runClass.bat"
echo rem 将.class文件拖放到本批处理上就可以自动执行java命令，前提是你预先安装了jdk，并设置了环境变量%%java_home%% >>"%java_home%\runClass.bat"
echo rem 感谢“秋ㄖ/ty枫.叶”对我的指导，本程序99%是他的功劳：http://wenwen.soso.com/z/q193976651.htm >>"%java_home%\runClass.bat"
echo rem 笃行天下整理 http://hi.baidu.com/duxing 2010年5月18日8:42:29 >>"%java_home%\runClass.bat"
echo rem 如果您更新了本文件，能分享给我吗？[email protected] >>"%java_home%\runClass.bat"
echo.>>"%java_home%\runClass.bat"
echo set thefile=%%1 >>"%java_home%\runClass.bat"
echo.>>"%java_home%\runClass.bat"
echo for %%%%i in (%%thefile%%) do ( >>"%java_home%\runClass.bat"
echo.>>"%java_home%\runClass.bat"
echo cd /d "%%%%~dpi" >>"%java_home%\runClass.bat"
echo.>>"%java_home%\runClass.bat"
echo java "%%%%~ni" >>"%java_home%\runClass.bat"
echo.>>"%java_home%\runClass.bat"
echo ) >>"%java_home%\runClass.bat"
echo.>>"%java_home%\runClass.bat"
echo pause >>"%java_home%\runClass.bat"
echo 创建runClass.bat到%java_home%完毕!
echo.:associate
echo.正在关联class文件打开方式到runClass.bat ...reg add HKEY_CLASSES_ROOT\classfile\DefaultIcon /f /ve /t REG_EXPAND_SZ /d "%java_home%\bin\java.exe,0"
reg add HKEY_CLASSES_ROOT\classfile\shell\run\command /f /ve /t REG_EXPAND_SZ /d "\"%java_home%\runClass.bat\" \"%%1\""
echo.
echo.关联class文件完毕!
echo.
goto end:end
echo.安装完毕!
echo.:over
pause
转自：http://hi.baidu.com/duxing/blog/item/8fac42162eb48e4620a4e99e.html

调试易

如何實現雙擊執行.class文件.(内空）

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