我正在尝试让Eclipse v3.5 (Galileo)在我的计算机上重新运行-我以前运行过,没有问题,但现在我一直得到这个错误:

要运行Eclipse,必须提供Java运行时环境(JRE)或Java开发工具包(JDK)。在搜索以下位置后没有发现Java虚拟机: C: \ eclipse \ jre \ javaw.exe javaw.exe在当前路径

我刚刚重新安装了JDK和SDK。

我用的是Windows 7 (x64)。

这是怎么回事?我该怎么解决呢?

我不能运行任何ipconfig / tracert /或ping。


当前回答

您得到这个错误的原因是因为eclipse需要JRE来启动,而它找不到JRE。它搜索的第一个位置是当前目录,然后是eclipse.ini文件,最后是系统路径。因此,如果它不能通过这三个地方中的任何一个找到正确的jvm(位版本不同),它就会停止运行

推荐的方法是编辑eclipse.ini文件,并告诉eclipse在哪里查找vm/jre,通过在文件中包含这一行:

虚拟机 [Java .exe的路径](通常在“C:\Program Files\Java\jre7\bin”下)

注:要编辑eclipse.ini,您可能需要移动它,编辑然后粘贴回来

来源:维基百科

其他回答

在eclipse文件夹中创建一个批处理文件,并在其中写入:

eclipse -vm C:\Sun\SDK\jdk\jre\bin\javaw.exe

看到 http://wiki.eclipse.org/FAQ_How_do_I_run_Eclipse%3F

如果在环境变量的PATH变量中添加C:\Program Files\Java\ jdk1.8.0_92\bin后,eclipse会给出相同的错误

在eclipse文件夹中找到eclipse配置设置文件,你必须看到与C:\program Files中相同的jdk路径

我希望它能有所帮助。

我有一个简单的解决这个问题的方法。我通过将eclipse.ini文件中的vm路径更改为最新的jre路径来解决这个问题。

我点击了这个链接:https://youtu.be/lU_eb5Ki1kY

只需在环境变量中添加JRE PATH FOR Ex: C:\Program Files\Java\jre5\bin 把“;”放在每条路径之间。然后点击eclipse.exe,它将工作.....

我也遇到过这个问题。我的案例如下:

在文本:

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

我发现他们的注册表值Path的类型是不同的,所以我用下面的命令检查路径是否有效:

C:\Users\ssfang> where node java
C:\ProgramFiles\nodejs\node.exe
INFO: Could not find "java".

因此,我通过以下命令(Setx)重置本地(当前用户)环境:

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

但是,在当前流程中,它不能将这些更改传播到其他正在运行的流程。

但是,如果直接在“注册表编辑器”中修改用户环境变量,

those modifications to the environment variables do not result in immediate change. For example, if you start another Command Prompt after making the changes, the environment variables will reflect the previous (not the current) values. The changes do not take effect until you log off and then log back on. To effect these changes without having to log off, broadcast a WM_SETTINGCHANGE message to all windows in the system, so that any interested applications (such as Windows Explorer, Program Manager, Task Manager, Control Panel, and so forth) can perform an update.

详细信息请参见如何将环境变量传播到系统

在这里,我给出了一个powershell脚本来完成它:

# 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);

对于Setx Setx [/s [/u [] [/p]]]]] [/m]

/m Specifies to set the variable in the system environment. The default setting is the local environment