Saya juga mengalami masalah ini. Kasus saya adalah sebagai berikut:
Dalam tulisan:
HKEY_CURRENT_USER\Environment
Path REG_SZ %JAVA_HOME%\bin;C:\ProgramFiles\nodejs
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
JAVA_HOME REG_SZ C:\ProgramFiles\Java\jdk
Path REG_EXPAND_SZ C:\bin;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\
WindowsPowerShell\v1.0\;C:\Program Files\Intel\DMIX;c:\Program Files (x86)\Microsoft SQL Server\90\Tools\binn\;C:\Progra
m Files (x86)\Perforce;C:\ProgramFiles\010 Editor;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\ProgramFiles\
Git\cmd;C:\Program Files (x86)\Skype\Phone\
C:\Users\ssfang> echo %^JAVA_HOME% = "%^JAVA_HOME%" = %%JAVA_HOME%% %JAVA_HOME%
%JAVA_HOME% = "%^JAVA_HOME%" = %C:\ProgramFiles\Java\jdk% C:\ProgramFiles\Java\jdk
Saya menemukan tipe nilai registri Pathmereka berbeda, jadi saya memeriksa apakah path tersebut valid atau tidak dengan perintah berikut:
C:\Users\ssfang> where node java
C:\ProgramFiles\nodejs\node.exe
INFO: Could not find "java".
Akibatnya, saya mereset lingkungan lokal (pengguna saat ini) dengan perintah berikut ( Setx ):
C:\Users\ssfang> setx PATH %^JAVA_HOME%\bin;"C:\ProgramFiles\nodejs"
SUCCESS: Specified value was saved.
C:\Users\ssfang> reg query HKEY_CURRENT_USER\Environment /v Path
HKEY_CURRENT_USER\Environment
Path REG_EXPAND_SZ %JAVA_HOME%\bin;C:\ProgramFiles\nodejs
C:\Users\ssfang> where node java
C:\ProgramFiles\nodejs\node.exe
INFO: Could not find "java".
C:\Users\ssfang>echo %PATH%
C:\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Fi
les\Intel\DMIX;c:\Program Files (x86)\Microsoft SQL Server\90\Tools\binn\;C:\Program Files (x86)\Perforce;C:\ProgramFile
s\010 Editor;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\ProgramFiles\Git\cmd;C:\Program Files (x86)\Skype\
Phone\;%JAVA_HOME%\bin;C:\ProgramFiles\nodejs
Namun, dalam proses saat ini, itu tidak dapat menyebarkan perubahan tersebut ke proses yang berjalan lainnya.
Namun, jika Anda secara langsung mengubah variabel lingkungan pengguna di Editor Registri,
modifikasi pada variabel lingkungan tidak menghasilkan perubahan langsung. Misalnya, jika Anda memulai Command Prompt lain setelah melakukan perubahan, variabel lingkungan akan mencerminkan nilai sebelumnya (bukan yang sekarang). Perubahan tidak berlaku sampai Anda keluar lalu masuk kembali.
Untuk melakukan perubahan ini tanpa harus keluar, tayangkan pesan WM_SETTINGCHANGE ke semua jendela dalam sistem, sehingga aplikasi apa pun yang tertarik (seperti Windows Explorer, Manajer Program, Manajer Tugas, Panel Kontrol, dan sebagainya) dapat melakukan pembaruan.
Lihat detail di Cara menyebarkan variabel lingkungan ke sistem
Di sini, saya memberikan skrip PowerShell untuk melakukannya:
# powershell -ExecutionPolicy ByPass -File
# Standard, inline approach: (i.e. behaviour you'd get when using & in Linux)
# START /B CMD /C CALL "foo.bat" [args [...]]
# powershell -ExecutionPolicy ByPass -WindowStyle Hidden -File myScript.ps1
<#
Add-Type @'
public class CSharp
{
public static void Method(object[] first, object[] second)
{
System.Console.WriteLine("Hello world");
}
}
'@
$a = 1..4;
[string[]]$b = "a","b","c","d";
[CSharp]::Method($a, $b);
#>
<#
#http://stackoverflow.com/questions/16552801/how-do-i-conditionally-add-a-class-with-add-type-typedefinition-if-it-isnt-add
#Problem Add-Type : Cannot add type. The type name 'PInvoke.User32' already exists.
if (-not ("MyClass" -as [type])) {
add-type @"
public class MyClass { }
"@
}
p.s. there's no Remove-Type; see this answer for more on how to best work around this limitation:
http://stackoverflow.com/questions/3369662/can-you-remove-an-add-ed-type-in-powershell-again
I think it will be wanted when debugging.
It is much simpler to close a tab in Console and open new one in PowerShell_ISE.exe or close PowerShell.exe.
Or
Start-Job -ScriptBlock {
param([uri]$url,$OutputDir)
# download and save pages
Invoke-RestMethod $url | Out-File "$OutputDir\$($url.Segments[-1])" -Force
} -ArgumentList $link,$OutputDir
#>
if (-not ([System.Management.Automation.PSTypeName]'PInvoke.Program').Type)
{
$sig=@"
using System;
using System.Runtime.InteropServices;
using System.Text;
using System.Collections.Generic;
// The global namespace is the "root" namespace: global::system will always refer to the .NET Framework namespace System.
///P/Invoke (Platform Invoke)
namespace PInvoke
{
public static class User32
{
/// http://www.pinvoke.net/default.aspx/Constants/HWND.html
// public const IntPtr HWND_BROADCAST = new IntPtr(0xffff);
/// https://msdn.microsoft.com/en-us/library/windows/desktop/ms725497(v=vs.85).aspx
/// http://www.pinvoke.net/default.aspx/Constants/WM.html
public const UInt32 WM_SETTINGCHANGE = 0x001A;
// SendMessageTimeout(HWND_BROADCAST, WM_SETTINGCHANGE, 0, (LPARAM) "Environment", SMTO_ABORTIFHUNG, 5000, &dwReturnValue);
/// https://msdn.microsoft.com/en-us/library/windows/desktop/ms644952(v=vs.85).aspx
/// If the function succeeds, the return value is nonzero.
[System.Runtime.InteropServices.DllImport("user32.dll", EntryPoint = "SendMessageTimeout", SetLastError = true)]
public static extern uint SendMessageTimeout(IntPtr hWnd, uint Msg, int wParam, string lParam, SendMessageTimeoutFlags fuFlags, uint uTimeout, out int lpdwResult);
}
[Flags]
public enum SendMessageTimeoutFlags : uint
{
SMTO_NORMAL = 0x0,
SMTO_BLOCK = 0x1,
SMTO_ABORTIFHUNG = 0x2,
SMTO_NOTIMEOUTIFNOTHUNG = 0x8,
SMTO_ERRORONEXIT = 0x20
}
public class Program
{
public static void Main(string[] args)
{
//int innerPinvokeResult;
//uint pinvokeResult = User32.SendMessageTimeout(User32.HWND_BROADCAST, User32.WM_SETTINGCHANGE, 0, "Environment", SendMessageTimeoutFlags.SMTO_NORMAL, 1000, out innerPinvokeResult);
Console.WriteLine("Over!!!!!!!!!!!!!!!!!!!!!!!!!");
}
}
}
"@
Add-Type -TypeDefinition $sig
}
## [PInvoke.Program]::Main([IntPtr]::Zero);
$innerPinvokeResult=[int]0
[PInvoke.User32]::SendMessageTimeout([IntPtr]0xffff, [PInvoke.User32]::WM_SETTINGCHANGE, 0, "Environment", [PInvoke.SendMessageTimeoutFlags]::SMTO_NORMAL, 1000, [ref]$innerPinvokeResult);
Setx setx [/ s [/ u [] [/ p []]]] [/ m]
/m Specifies to set the variable in the system environment. The default setting is the local environment
Java Runtime Environmentis JRE not SDK ...