我无法让 CMD 输出显示在我的文本框中。
I cant get the CMD outputs to display in my textbox.
由于本地用户组管理似乎不是我可以在 C# 中查询的东西，我想我会做一个我试图完成的低级版本，我需要一些关于最佳实践的建议。
目标：
本质上，我需要确定当前本地用户的密码是否设置为过期并将结果显示在文本框中。我已经编写了一个文本搜索，所以我不介意输出中会有额外的数据，因为我会将数据提炼为一个字符串的布尔检查。
问题：
查看下面的代码。由于某种原因，错误代码来自 CMD 就好了，但是，输出不显示在 textbox2 中。
string userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name.Split('\').Last(); ;
user.Text = userName;
Process cmd = new Process();
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo.Arguments = "/c net user";
cmd.StartInfo.UseShellExecute = false;
cmd.StartInfo.RedirectStandardOutput = true;
cmd.StartInfo.RedirectStandardError = true;
cmd.Start();
//* Read the output (or the error)
string output = cmd.StandardOutput.ReadToEnd();
textBox2.Text = output;
string err = cmd.StandardError.ReadToEnd();
textBox2.Text = err;
cmd.WaitForExit();
首先你将输出变量 textBox2.Text，然后你将 textBox2.Text 替换为 err 我相信你从 err 变量中没有得到任何东西，这就是为什么 TextBox2 没有显示什么你在期待。
尝试运行下面的代码片段来检查输出和错误变量是如何获得的：
string userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name.Split('\').Last(); ;
string text = userName;
Process cmd = new Process();
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo.Arguments = "/c net user";
cmd.StartInfo.UseShellExecute = false;
cmd.StartInfo.RedirectStandardOutput = true;
cmd.StartInfo.RedirectStandardError = true;
cmd.Start();
//* Read the output (or the error)
string output = cmd.StandardOutput.ReadToEnd();
string err = cmd.StandardError.ReadToEnd();
Console.WriteLine("Output: "+output );
Console.WriteLine("Err: "+err);
cmd.WaitForExit();
Console.ReadKey();
编辑
USER_INFO_2
USER_INFO_2结构包含了一个用户帐户的信息，包括帐户名、密码数据、权限级别、用户主目录的路径，以及其他与用户相关的网络统计信息.
usri2_acct_expires
指定一个 DWORD 值，指示帐户何时过期。此值存储为自格林威治标准时间 00:00:00，1970 年 1 月 1 日起经过的秒数。值 TIMEQ_FOREVER 表示该帐户永不过期。
来自 USER_INFO_2 与 NetUserGetInfo 一起使用。
在Lmaccess.h中声明； include Lm.h.
shell 给用户命令来做一些简单的事情是非常糟糕的做法。
你的根本问题和你关于用户管理不可用的非常愚蠢的结论是错误的。
如果另一个程序可以做某事，那么您的程序也可以。
如果您不知道如何查看 API 调用（在记事本中打开并查看 - 它们都在文件中）。 .NET 有自己的 WMI class.
C# 和 C++ 以及 C 都可以访问 WMI。您通过 WMI 执行的操作的命令行是
wmic path Win32_Account get /format:list
wmic path Win32_Group get /format:list
wmic path Win32_GroupInDomain get /format:list
wmic path Win32_GroupUser get /format:list
wmic path Win32_SystemAccount get /format:list
wmic path Win32_SystemUsers get /format:list
wmic path Win32_UserAccount get /format:list
寻求帮助
wmic /?
wmic UserAccount /?
wmic useraccount get /?
wmic useraccount set /?
wmic useraccount call /?
在vbscript中同样的事情是
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\.\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * From Win32_UserAccount")
For Each objItem in colItems
msgbox objitem.Caption & " " & objItem.Description
Next
来自 WDK
的 C++ 示例
#include "querysink.h"
int main(int argc, char **argv)
{
HRESULT hres;
// Step 1: --------------------------------------------------
// Initialize COM. ------------------------------------------
hres = CoInitializeEx(0, COINIT_MULTITHREADED);
if (FAILED(hres))
{
cout << "Failed to initialize COM library. Error code = 0x"
<< hex << hres << endl;
return 1; // Program has failed.
}
// Step 2: --------------------------------------------------
// Set general COM security levels --------------------------
// Note: If you are using Windows 2000, you need to specify -
// the default authentication credentials for a user by using
// a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----
// parameter of CoInitializeSecurity ------------------------
hres = CoInitializeSecurity(
NULL,
-1, // COM authentication
NULL, // Authentication services
NULL, // Reserved
RPC_C_AUTHN_LEVEL_DEFAULT, // Default authentication
RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
NULL, // Authentication info
EOAC_NONE, // Additional capabilities
NULL // Reserved
);
if (FAILED(hres))
{
cout << "Failed to initialize security. Error code = 0x"
<< hex << hres << endl;
CoUninitialize();
return 1; // Program has failed.
}
// Step 3: ---------------------------------------------------
// Obtain the initial locator to WMI -------------------------
IWbemLocator *pLoc = NULL;
hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *) &pLoc);
if (FAILED(hres))
{
cout << "Failed to create IWbemLocator object."
<< " Err code = 0x"
<< hex << hres << endl;
CoUninitialize();
return 1; // Program has failed.
}
// Step 4: -----------------------------------------------------
// Connect to WMI through the IWbemLocator::ConnectServer method
IWbemServices *pSvc = NULL;
// Connect to the local root\cimv2 namespace
// and obtain pointer pSvc to make IWbemServices calls.
hres = pLoc->ConnectServer(
_bstr_t(L"ROOT\CIMV2"),
NULL,
NULL,
0,
NULL,
0,
0,
&pSvc
);
if (FAILED(hres))
{
cout << "Could not connect. Error code = 0x"
<< hex << hres << endl;
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
cout << "Connected to ROOT\CIMV2 WMI namespace" << endl;
// Step 5: --------------------------------------------------
// Set security levels on the proxy -------------------------
hres = CoSetProxyBlanket(
pSvc, // Indicates the proxy to set
RPC_C_AUTHN_WINNT, // RPC_C_AUTHN_xxx
RPC_C_AUTHZ_NONE, // RPC_C_AUTHZ_xxx
NULL, // Server principal name
RPC_C_AUTHN_LEVEL_CALL, // RPC_C_AUTHN_LEVEL_xxx
RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
NULL, // client identity
EOAC_NONE // proxy capabilities
);
if (FAILED(hres))
{
cout << "Could not set proxy blanket. Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 6: --------------------------------------------------
// Use the IWbemServices pointer to make requests of WMI ----
// For example, get the name of the operating system.
// The IWbemService::ExecQueryAsync method will call
// the QuerySink::Indicate method when it receives a result
// and the QuerySink::Indicate method will display the OS name
QuerySink* pResponseSink = new QuerySink();
hres = pSvc->ExecQueryAsync(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_OperatingSystem"),
WBEM_FLAG_BIDIRECTIONAL,
NULL,
pResponseSink);
if (FAILED(hres))
{
cout << "Query for operating system name failed."
<< " Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
pResponseSink->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 7: -------------------------------------------------
// Wait to get the data from the query in step 6 -----------
Sleep(500);
pSvc->CancelAsyncCall(pResponseSink);
// Cleanup
// ========
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 0; // Program successfully completed.
}
The following code is the header file code for the QuerySink class. The QuerySink class is used in the previous code.
// QuerySink.h
#ifndef QUERYSINK_H
#define QUERYSINK_H
#define _WIN32_DCOM
#include <iostream>
using namespace std;
#include <comdef.h>
#include <Wbemidl.h>
# pragma comment(lib, "wbemuuid.lib")
class QuerySink : public IWbemObjectSink
{
LONG m_lRef;
bool bDone;
CRITICAL_SECTION threadLock; // for thread safety
public:
QuerySink() { m_lRef = 0; bDone = false;
InitializeCriticalSection(&threadLock); }
~QuerySink() { bDone = true;
DeleteCriticalSection(&threadLock); }
virtual ULONG STDMETHODCALLTYPE AddRef();
virtual ULONG STDMETHODCALLTYPE Release();
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid,
void** ppv);
virtual HRESULT STDMETHODCALLTYPE Indicate(
LONG lObjectCount,
IWbemClassObject __RPC_FAR *__RPC_FAR *apObjArray
);
virtual HRESULT STDMETHODCALLTYPE SetStatus(
/* [in] */ LONG lFlags,
/* [in] */ HRESULT hResult,
/* [in] */ BSTR strParam,
/* [in] */ IWbemClassObject __RPC_FAR *pObjParam
);
bool IsDone();
};
#endif // end of QuerySink.h
The following code is an implementation of the QuerySink class:
// QuerySink.cpp
#include "querysink.h"
ULONG QuerySink::AddRef()
{
return InterlockedIncrement(&m_lRef);
}
ULONG QuerySink::Release()
{
LONG lRef = InterlockedDecrement(&m_lRef);
if(lRef == 0)
delete this;
return lRef;
}
HRESULT QuerySink::QueryInterface(REFIID riid, void** ppv)
{
if (riid == IID_IUnknown || riid == IID_IWbemObjectSink)
{
*ppv = (IWbemObjectSink *) this;
AddRef();
return WBEM_S_NO_ERROR;
}
else return E_NOINTERFACE;
}
HRESULT QuerySink::Indicate(long lObjectCount,
IWbemClassObject **apObjArray)
{
HRESULT hres = S_OK;
for (int i = 0; i < lObjectCount; i++)
{
VARIANT varName;
hres = apObjArray[i]->Get(_bstr_t(L"Name"),
0, &varName, 0, 0);
if (FAILED(hres))
{
cout << "Failed to get the data from the query"
<< " Error code = 0x"
<< hex << hres << endl;
return WBEM_E_FAILED; // Program has failed.
}
printf("Name: %ls\n", V_BSTR(&varName));
}
return WBEM_S_NO_ERROR;
}
HRESULT QuerySink::SetStatus(
/* [in] */ LONG lFlags,
/* [in] */ HRESULT hResult,
/* [in] */ BSTR strParam,
/* [in] */ IWbemClassObject __RPC_FAR *pObjParam
)
{
if(lFlags == WBEM_STATUS_COMPLETE)
{
printf("Call complete.\n");
EnterCriticalSection(&threadLock);
bDone = true;
LeaveCriticalSection(&threadLock);
}
else if(lFlags == WBEM_STATUS_PROGRESS)
{
printf("Call in progress.\n");
}
return WBEM_S_NO_ERROR;
}
bool QuerySink::IsDone()
{
bool done = true;
EnterCriticalSection(&threadLock);
done = bDone;
LeaveCriticalSection(&threadLock);
return done;
} // end of QuerySink.cpp
由于本地用户组管理似乎不是我可以在 C# 中查询的东西，我想我会做一个我试图完成的低级版本，我需要一些关于最佳实践的建议。
目标： 本质上，我需要确定当前本地用户的密码是否设置为过期并将结果显示在文本框中。我已经编写了一个文本搜索，所以我不介意输出中会有额外的数据，因为我会将数据提炼为一个字符串的布尔检查。
问题： 查看下面的代码。由于某种原因，错误代码来自 CMD 就好了，但是，输出不显示在 textbox2 中。
string userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name.Split('\').Last(); ;
user.Text = userName;
Process cmd = new Process();
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo.Arguments = "/c net user";
cmd.StartInfo.UseShellExecute = false;
cmd.StartInfo.RedirectStandardOutput = true;
cmd.StartInfo.RedirectStandardError = true;
cmd.Start();
//* Read the output (or the error)
string output = cmd.StandardOutput.ReadToEnd();
textBox2.Text = output;
string err = cmd.StandardError.ReadToEnd();
textBox2.Text = err;
cmd.WaitForExit();
首先你将输出变量 textBox2.Text，然后你将 textBox2.Text 替换为 err 我相信你从 err 变量中没有得到任何东西，这就是为什么 TextBox2 没有显示什么你在期待。
尝试运行下面的代码片段来检查输出和错误变量是如何获得的：
string userName = System.Security.Principal.WindowsIdentity.GetCurrent().Name.Split('\').Last(); ;
string text = userName;
Process cmd = new Process();
cmd.StartInfo.FileName = "cmd.exe";
cmd.StartInfo.Arguments = "/c net user";
cmd.StartInfo.UseShellExecute = false;
cmd.StartInfo.RedirectStandardOutput = true;
cmd.StartInfo.RedirectStandardError = true;
cmd.Start();
//* Read the output (or the error)
string output = cmd.StandardOutput.ReadToEnd();
string err = cmd.StandardError.ReadToEnd();
Console.WriteLine("Output: "+output );
Console.WriteLine("Err: "+err);
cmd.WaitForExit();
Console.ReadKey();
编辑
USER_INFO_2
USER_INFO_2结构包含了一个用户帐户的信息，包括帐户名、密码数据、权限级别、用户主目录的路径，以及其他与用户相关的网络统计信息.
usri2_acct_expires
指定一个 DWORD 值，指示帐户何时过期。此值存储为自格林威治标准时间 00:00:00，1970 年 1 月 1 日起经过的秒数。值 TIMEQ_FOREVER 表示该帐户永不过期。
来自 USER_INFO_2 与 NetUserGetInfo 一起使用。
在Lmaccess.h中声明； include Lm.h.
shell 给用户命令来做一些简单的事情是非常糟糕的做法。
你的根本问题和你关于用户管理不可用的非常愚蠢的结论是错误的。
如果另一个程序可以做某事，那么您的程序也可以。
如果您不知道如何查看 API 调用（在记事本中打开并查看 - 它们都在文件中）。 .NET 有自己的 WMI class.
C# 和 C++ 以及 C 都可以访问 WMI。您通过 WMI 执行的操作的命令行是
wmic path Win32_Account get /format:list
wmic path Win32_Group get /format:list
wmic path Win32_GroupInDomain get /format:list
wmic path Win32_GroupUser get /format:list
wmic path Win32_SystemAccount get /format:list
wmic path Win32_SystemUsers get /format:list
wmic path Win32_UserAccount get /format:list
寻求帮助
wmic /?
wmic UserAccount /?
wmic useraccount get /?
wmic useraccount set /?
wmic useraccount call /?
在vbscript中同样的事情是
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\.\root\cimv2")
Set colItems = objWMIService.ExecQuery("Select * From Win32_UserAccount")
For Each objItem in colItems
msgbox objitem.Caption & " " & objItem.Description
Next
来自 WDK
的 C++ 示例#include "querysink.h"
int main(int argc, char **argv)
{
HRESULT hres;
// Step 1: --------------------------------------------------
// Initialize COM. ------------------------------------------
hres = CoInitializeEx(0, COINIT_MULTITHREADED);
if (FAILED(hres))
{
cout << "Failed to initialize COM library. Error code = 0x"
<< hex << hres << endl;
return 1; // Program has failed.
}
// Step 2: --------------------------------------------------
// Set general COM security levels --------------------------
// Note: If you are using Windows 2000, you need to specify -
// the default authentication credentials for a user by using
// a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----
// parameter of CoInitializeSecurity ------------------------
hres = CoInitializeSecurity(
NULL,
-1, // COM authentication
NULL, // Authentication services
NULL, // Reserved
RPC_C_AUTHN_LEVEL_DEFAULT, // Default authentication
RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
NULL, // Authentication info
EOAC_NONE, // Additional capabilities
NULL // Reserved
);
if (FAILED(hres))
{
cout << "Failed to initialize security. Error code = 0x"
<< hex << hres << endl;
CoUninitialize();
return 1; // Program has failed.
}
// Step 3: ---------------------------------------------------
// Obtain the initial locator to WMI -------------------------
IWbemLocator *pLoc = NULL;
hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *) &pLoc);
if (FAILED(hres))
{
cout << "Failed to create IWbemLocator object."
<< " Err code = 0x"
<< hex << hres << endl;
CoUninitialize();
return 1; // Program has failed.
}
// Step 4: -----------------------------------------------------
// Connect to WMI through the IWbemLocator::ConnectServer method
IWbemServices *pSvc = NULL;
// Connect to the local root\cimv2 namespace
// and obtain pointer pSvc to make IWbemServices calls.
hres = pLoc->ConnectServer(
_bstr_t(L"ROOT\CIMV2"),
NULL,
NULL,
0,
NULL,
0,
0,
&pSvc
);
if (FAILED(hres))
{
cout << "Could not connect. Error code = 0x"
<< hex << hres << endl;
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
cout << "Connected to ROOT\CIMV2 WMI namespace" << endl;
// Step 5: --------------------------------------------------
// Set security levels on the proxy -------------------------
hres = CoSetProxyBlanket(
pSvc, // Indicates the proxy to set
RPC_C_AUTHN_WINNT, // RPC_C_AUTHN_xxx
RPC_C_AUTHZ_NONE, // RPC_C_AUTHZ_xxx
NULL, // Server principal name
RPC_C_AUTHN_LEVEL_CALL, // RPC_C_AUTHN_LEVEL_xxx
RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
NULL, // client identity
EOAC_NONE // proxy capabilities
);
if (FAILED(hres))
{
cout << "Could not set proxy blanket. Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 6: --------------------------------------------------
// Use the IWbemServices pointer to make requests of WMI ----
// For example, get the name of the operating system.
// The IWbemService::ExecQueryAsync method will call
// the QuerySink::Indicate method when it receives a result
// and the QuerySink::Indicate method will display the OS name
QuerySink* pResponseSink = new QuerySink();
hres = pSvc->ExecQueryAsync(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_OperatingSystem"),
WBEM_FLAG_BIDIRECTIONAL,
NULL,
pResponseSink);
if (FAILED(hres))
{
cout << "Query for operating system name failed."
<< " Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
pResponseSink->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 7: -------------------------------------------------
// Wait to get the data from the query in step 6 -----------
Sleep(500);
pSvc->CancelAsyncCall(pResponseSink);
// Cleanup
// ========
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 0; // Program successfully completed.
}
The following code is the header file code for the QuerySink class. The QuerySink class is used in the previous code.
// QuerySink.h
#ifndef QUERYSINK_H
#define QUERYSINK_H
#define _WIN32_DCOM
#include <iostream>
using namespace std;
#include <comdef.h>
#include <Wbemidl.h>
# pragma comment(lib, "wbemuuid.lib")
class QuerySink : public IWbemObjectSink
{
LONG m_lRef;
bool bDone;
CRITICAL_SECTION threadLock; // for thread safety
public:
QuerySink() { m_lRef = 0; bDone = false;
InitializeCriticalSection(&threadLock); }
~QuerySink() { bDone = true;
DeleteCriticalSection(&threadLock); }
virtual ULONG STDMETHODCALLTYPE AddRef();
virtual ULONG STDMETHODCALLTYPE Release();
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid,
void** ppv);
virtual HRESULT STDMETHODCALLTYPE Indicate(
LONG lObjectCount,
IWbemClassObject __RPC_FAR *__RPC_FAR *apObjArray
);
virtual HRESULT STDMETHODCALLTYPE SetStatus(
/* [in] */ LONG lFlags,
/* [in] */ HRESULT hResult,
/* [in] */ BSTR strParam,
/* [in] */ IWbemClassObject __RPC_FAR *pObjParam
);
bool IsDone();
};
#endif // end of QuerySink.h
The following code is an implementation of the QuerySink class:
// QuerySink.cpp
#include "querysink.h"
ULONG QuerySink::AddRef()
{
return InterlockedIncrement(&m_lRef);
}
ULONG QuerySink::Release()
{
LONG lRef = InterlockedDecrement(&m_lRef);
if(lRef == 0)
delete this;
return lRef;
}
HRESULT QuerySink::QueryInterface(REFIID riid, void** ppv)
{
if (riid == IID_IUnknown || riid == IID_IWbemObjectSink)
{
*ppv = (IWbemObjectSink *) this;
AddRef();
return WBEM_S_NO_ERROR;
}
else return E_NOINTERFACE;
}
HRESULT QuerySink::Indicate(long lObjectCount,
IWbemClassObject **apObjArray)
{
HRESULT hres = S_OK;
for (int i = 0; i < lObjectCount; i++)
{
VARIANT varName;
hres = apObjArray[i]->Get(_bstr_t(L"Name"),
0, &varName, 0, 0);
if (FAILED(hres))
{
cout << "Failed to get the data from the query"
<< " Error code = 0x"
<< hex << hres << endl;
return WBEM_E_FAILED; // Program has failed.
}
printf("Name: %ls\n", V_BSTR(&varName));
}
return WBEM_S_NO_ERROR;
}
HRESULT QuerySink::SetStatus(
/* [in] */ LONG lFlags,
/* [in] */ HRESULT hResult,
/* [in] */ BSTR strParam,
/* [in] */ IWbemClassObject __RPC_FAR *pObjParam
)
{
if(lFlags == WBEM_STATUS_COMPLETE)
{
printf("Call complete.\n");
EnterCriticalSection(&threadLock);
bDone = true;
LeaveCriticalSection(&threadLock);
}
else if(lFlags == WBEM_STATUS_PROGRESS)
{
printf("Call in progress.\n");
}
return WBEM_S_NO_ERROR;
}
bool QuerySink::IsDone()
{
bool done = true;
EnterCriticalSection(&threadLock);
done = bDone;
LeaveCriticalSection(&threadLock);
return done;
} // end of QuerySink.cpp