我不能得到CMD输出显示在我的文本框中
本文关键字：我的 文本 显示 输出 不能 CMD | 更新日期: 2023-09-27 17:53:03
由于本地用户组管理似乎不是我可以在c#中查询的东西，我想我会做一个我想要完成的事情的一个下降和肮脏的版本，我需要一些最佳实践的建议。
目标:实际上，我需要确定当前本地用户的密码是否设置为过期，并将结果显示在一个文本框中。我已经写了一个文本搜索，所以我不介意会有额外的数据坐在输出中，因为我将提取数据到一个字符串的布尔检查。
问题:请查看下面的代码。由于某种原因，错误代码从CMD传入很好，但是，输出没有显示在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();
首先输入输出变量textBox2。文本，然后您正在替换textBox2。带有err的文本，我相信你没有从err变量中得到任何东西，这就是为什么TextBox2没有显示你所期望的。
试着运行下面的代码片段来检查输出和err变量是如何得到的:
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();
EDIT
USER_INFO_2
USER_INFO_2结构包含用户帐户的信息，包括帐户名、密码数据、权限级别、用户主目录路径以及其他与用户相关的网络统计信息。
usri2_acct_expires
指定DWORD值，表示帐户何时过期。此值存储为从GMT时间1970年1月1日00:00:00开始经过的秒数。TIMEQ_FOREVER表示该帐户永远不会过期。
from USER_INFO_2 with NetUserGetInfo。
声明于Lmaccess.h;include Lm.h。
用shell命令让用户做简单的事情是很糟糕的做法。
你的根本问题和你关于用户管理不可用的愚蠢结论是错误的。
如果另一个程序可以做某事，那么你的程序也可以。
如果你不知道如何查看API调用它调用(在记事本中打开并查看-它们都在文件中). net有它自己的WMI类。
c#、c++和C都可以访问WMI。通过WMI执行的命令行是
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
wmic /?
wmic UserAccount /?
wmic useraccount get /?
wmic useraccount set /?
wmic useraccount call /?
vbscript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的一个 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