可以设置环境变量并立即生效, 与Windows批处理不同的是此脚本设置的环境变量可保证重启后一样有用.
保存以下内容为 设置环境变量.vbs , 修改要设置的环境变量名即路径即可开始运行设置.
Set pSysEnv = CreateObject("WScript.Shell").Environment("System")
'Check whether a character string matches a regular expression
' ^\w+[@]\w+[.]\w+$ E-MailAddress
' ^[0-9-]+$ Numeral
Function IsMatch(Str, Patrn)
Set r = new RegExp
r.Pattern = Patrn
IsMatch = r.test(Str)
End Function
Sub SetEnv(pPath, pValue)
Dim ExistValueOfPath
IF pValue <> "" Then
ExistValueOfPath = pSysEnv(pPath)
IF Right(pValue, 1) = "\" Then pValue = Left(pValue, Len(pValue)-1)
If IsMatch(ExistValueOfPath, "\*?" & Replace(pValue, "\", "\\") & "\\?(\b|;)") Then Exit Sub '已经存在该环境变量设置
If ExistValueOfPath <> "" Then pValue = ";" & pValue
pSysEnv(pPath) = ExistValueOfPath & pValue
Else
pSysEnv.Remove(pPath)
End IF
End Sub
'--------设置JDK目录---------
JAVA_HOME = "C:\Program Files\Java\jdk1.5.0"
SetEnv "JAVA_HOME", JAVA_HOME
SetEnv "CLASSPATH", "%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\lib\dt.jar"
SetEnv "Path", "%JAVA_HOME%\bin"
MsgBox "Set environment variable for Java successfully."
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