如何从Windows服务中打印PDF文档
本文关键字：打印 PDF 文档 服务 Windows | 更新日期: 2023-09-27 17:49:21
我有windows服务，必须定期从服务器打印PDF文档。我的函数是
private void PrintFormPdfData(byte[] formPdfData)
{
string tempFile;
tempFile = Path.GetTempFileName();
using (FileStream fs = new FileStream(tempFile, FileMode.Create))
{
fs.Write(formPdfData, 0, formPdfData.Length);
fs.Flush();
}
string pdfArguments = string.Format("/p /h'"{0}'"", tempFile);
string pdfPrinterLocation = @"C:'Program Files (x86)'Adobe'Reader 9.0'Reader'AcroRd32.exe";
ProcessStartInfo newProcess = new ProcessStartInfo(pdfPrinterLocation, pdfArguments);
newProcess.CreateNoWindow = true;
newProcess.RedirectStandardOutput = true;
newProcess.UseShellExecute = false;
newProcess.RedirectStandardError = true;
Process pdfProcess = new Process();
pdfProcess.StartInfo = newProcess;
pdfProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
pdfProcess.Start();
pdfProcess.WaitForExit();
}
当我在Windows应用程序中实现它时，它工作，但是当我在Windows服务中实现它时，它不工作。
你能帮我吗?
我解决了会话0的问题。我使用这个类:
public class ProcessStarter : IDisposable
{
#region Import Section
private static uint STANDARD_RIGHTS_REQUIRED = 0x000F0000;
private static uint STANDARD_RIGHTS_READ = 0x00020000;
private static uint TOKEN_ASSIGN_PRIMARY = 0x0001;
private static uint TOKEN_DUPLICATE = 0x0002;
private static uint TOKEN_IMPERSONATE = 0x0004;
private static uint TOKEN_QUERY = 0x0008;
private static uint TOKEN_QUERY_SOURCE = 0x0010;
private static uint TOKEN_ADJUST_PRIVILEGES = 0x0020;
private static uint TOKEN_ADJUST_GROUPS = 0x0040;
private static uint TOKEN_ADJUST_DEFAULT = 0x0080;
private static uint TOKEN_ADJUST_SESSIONID = 0x0100;
private static uint TOKEN_READ = (STANDARD_RIGHTS_READ | TOKEN_QUERY);
private static uint TOKEN_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED | TOKEN_ASSIGN_PRIMARY | TOKEN_DUPLICATE | TOKEN_IMPERSONATE | TOKEN_QUERY | TOKEN_QUERY_SOURCE | TOKEN_ADJUST_PRIVILEGES | TOKEN_ADJUST_GROUPS | TOKEN_ADJUST_DEFAULT | TOKEN_ADJUST_SESSIONID);
private const uint NORMAL_PRIORITY_CLASS = 0x0020;
private const uint CREATE_UNICODE_ENVIRONMENT = 0x00000400;
private const uint MAX_PATH = 260;
private const uint CREATE_NO_WINDOW = 0x08000000;
private const uint INFINITE = 0xFFFFFFFF;
[StructLayout(LayoutKind.Sequential)]
public struct SECURITY_ATTRIBUTES
{
public int nLength;
public IntPtr lpSecurityDescriptor;
public int bInheritHandle;
}
public enum SECURITY_IMPERSONATION_LEVEL
{
SecurityAnonymous,
SecurityIdentification,
SecurityImpersonation,
SecurityDelegation
}
public enum TOKEN_TYPE
{
TokenPrimary = 1,
TokenImpersonation
}
public enum WTS_CONNECTSTATE_CLASS
{
WTSActive,
WTSConnected,
WTSConnectQuery,
WTSShadow,
WTSDisconnected,
WTSIdle,
WTSListen,
WTSReset,
WTSDown,
WTSInit
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct STARTUPINFO
{
public Int32 cb;
public string lpReserved;
public string lpDesktop;
public string lpTitle;
public Int32 dwX;
public Int32 dwY;
public Int32 dwXSize;
public Int32 dwYSize;
public Int32 dwXCountChars;
public Int32 dwYCountChars;
public Int32 dwFillAttribute;
public Int32 dwFlags;
public Int16 wShowWindow;
public Int16 cbReserved2;
public IntPtr lpReserved2;
public IntPtr hStdInput;
public IntPtr hStdOutput;
public IntPtr hStdError;
}
[StructLayout(LayoutKind.Sequential)]
internal struct PROCESS_INFORMATION
{
public IntPtr hProcess;
public IntPtr hThread;
public int dwProcessId;
public int dwThreadId;
}
[StructLayout(LayoutKind.Sequential)]
private struct WTS_SESSION_INFO
{
public Int32 SessionID;
[MarshalAs(UnmanagedType.LPStr)]
public String pWinStationName;
public WTS_CONNECTSTATE_CLASS State;
}
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern uint WTSGetActiveConsoleSessionId();
[DllImport("wtsapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool WTSQueryUserToken(int sessionId, out IntPtr tokenHandle);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
public extern static bool DuplicateTokenEx(IntPtr existingToken, uint desiredAccess, IntPtr tokenAttributes, SECURITY_IMPERSONATION_LEVEL impersonationLevel, TOKEN_TYPE tokenType, out IntPtr newToken);
[DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool CreateProcessAsUser(IntPtr token, string applicationName, string commandLine, ref SECURITY_ATTRIBUTES processAttributes, ref SECURITY_ATTRIBUTES threadAttributes, bool inheritHandles, uint creationFlags, IntPtr environment, string currentDirectory, ref STARTUPINFO startupInfo, out PROCESS_INFORMATION processInformation);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool CloseHandle(IntPtr handle);
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern int GetLastError();
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern int WaitForSingleObject(IntPtr token, uint timeInterval);
[DllImport("wtsapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern int WTSEnumerateSessions(System.IntPtr hServer, int Reserved, int Version, ref System.IntPtr ppSessionInfo, ref int pCount);
[DllImport("userenv.dll", CharSet = CharSet.Auto, SetLastError = true)]
static extern bool CreateEnvironmentBlock(out IntPtr lpEnvironment, IntPtr hToken, bool bInherit);
[DllImport("wtsapi32.dll", ExactSpelling = true, SetLastError = false)]
public static extern void WTSFreeMemory(IntPtr memory);
[DllImport("userenv.dll", SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool DestroyEnvironmentBlock(IntPtr lpEnvironment);
#endregion
/// <summary>
/// Initializes a new instance of the <see cref="ProcessStarter"/> class.
/// </summary>
public ProcessStarter()
{
}
/// <summary>
/// Initializes a new instance of the <see cref="ProcessStarter"/> class.
/// </summary>
/// <param name="processName">Name of the process.</param>
/// <param name="fullExeName">Full name of the exe.</param>
public ProcessStarter(string processName, string fullExeName)
{
processName_ = processName;
processPath_ = fullExeName;
}
/// <summary>
/// Initializes a new instance of the <see cref="ProcessStarter"/> class.
/// </summary>
/// <param name="processName">Name of the process.</param>
/// <param name="fullExeName">Full name of the exe.</param>
/// <param name="arguments">The arguments.</param>
public ProcessStarter(string processName, string fullExeName, string arguments)
{
processName_ = processName;
processPath_ = fullExeName;
arguments_ = arguments;
}
/// <summary>
/// Gets the current user token.
/// </summary>
/// <returns></returns>
public static IntPtr GetCurrentUserToken()
{
IntPtr currentToken = IntPtr.Zero;
IntPtr primaryToken = IntPtr.Zero;
IntPtr WTS_CURRENT_SERVER_HANDLE = IntPtr.Zero;
int dwSessionId = 0;
IntPtr hUserToken = IntPtr.Zero;
IntPtr hTokenDup = IntPtr.Zero;
IntPtr pSessionInfo = IntPtr.Zero;
int dwCount = 0;
WTSEnumerateSessions(WTS_CURRENT_SERVER_HANDLE, 0, 1, ref pSessionInfo, ref dwCount);
Int32 dataSize = Marshal.SizeOf(typeof(WTS_SESSION_INFO));
Int32 current = (int)pSessionInfo;
for (int i = 0; i < dwCount; i++)
{
WTS_SESSION_INFO si = (WTS_SESSION_INFO)Marshal.PtrToStructure((System.IntPtr)current, typeof(WTS_SESSION_INFO));
if (WTS_CONNECTSTATE_CLASS.WTSActive == si.State)
{
dwSessionId = si.SessionID;
break;
}
current += dataSize;
}
WTSFreeMemory(pSessionInfo);
bool bRet = WTSQueryUserToken(dwSessionId, out currentToken);
if (bRet == false)
{
return IntPtr.Zero;
}
bRet = DuplicateTokenEx(currentToken, TOKEN_ASSIGN_PRIMARY | TOKEN_ALL_ACCESS, IntPtr.Zero, SECURITY_IMPERSONATION_LEVEL.SecurityImpersonation, TOKEN_TYPE.TokenPrimary, out primaryToken);
if (bRet == false)
{
return IntPtr.Zero;
}
return primaryToken;
}
/// <summary>
/// Runs this instance.
/// </summary>
public void Run()
{
IntPtr primaryToken = GetCurrentUserToken();
if (primaryToken == IntPtr.Zero)
{
return;
}
STARTUPINFO StartupInfo = new STARTUPINFO();
processInfo_ = new PROCESS_INFORMATION();
StartupInfo.cb = Marshal.SizeOf(StartupInfo);
SECURITY_ATTRIBUTES Security1 = new SECURITY_ATTRIBUTES();
SECURITY_ATTRIBUTES Security2 = new SECURITY_ATTRIBUTES();
string command = "'"" + processPath_ + "'"";
if ((arguments_ != null) && (arguments_.Length != 0))
{
command += " " + arguments_;
}
IntPtr lpEnvironment = IntPtr.Zero;
bool resultEnv = CreateEnvironmentBlock(out lpEnvironment, primaryToken, false);
if (resultEnv != true)
{
int nError = GetLastError();
}
CreateProcessAsUser(primaryToken, null, command, ref Security1, ref Security2, false, CREATE_NO_WINDOW | NORMAL_PRIORITY_CLASS | CREATE_UNICODE_ENVIRONMENT, lpEnvironment, null, ref StartupInfo, out processInfo_);
DestroyEnvironmentBlock(lpEnvironment);
CloseHandle(primaryToken);
}
/// <summary>
/// Stops this instance.
/// </summary>
public void Stop()
{
Process[] processes = Process.GetProcesses();
foreach (Process current in processes)
{
if (current.ProcessName == processName_)
{
current.Kill();
}
}
}
/// <summary>
/// Waits for exit.
/// </summary>
/// <returns></returns>
public int WaitForExit()
{
WaitForSingleObject(processInfo_.hProcess, INFINITE);
int errorcode = GetLastError();
return errorcode;
}
#region IDisposable Members
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public void Dispose()
{
}
#endregion
private string processPath_ = string.Empty;
private string processName_ = string.Empty;
private string arguments_ = string.Empty;
private PROCESS_INFORMATION processInfo_;
/// <summary>
/// Gets or sets the process path.
/// </summary>
/// <value>The process path.</value>
public string ProcessPath
{
get
{
return processPath_;
}
set
{
processPath_ = value;
}
}
/// <summary>
/// Gets or sets the name of the process.
/// </summary>
/// <value>The name of the process.</value>
public string ProcessName
{
get
{
return processName_;
}
set
{
processName_ = value;
}
}
/// <summary>
/// Gets or sets the arguments.
/// </summary>
/// <value>The arguments.</value>
public string Arguments
{
get
{
return arguments_;
}
set
{
arguments_ = value;
}
}
}
private void PrintFormPdfData(byte[] formPdfData)
{
string tempFile;
tempFile = Path.GetTempFileName();
using (FileStream fs = new FileStream(tempFile, FileMode.Create))
{
fs.Write(formPdfData, 0, formPdfData.Length);
fs.Flush();
}
string pdfArguments =string.Format("/t /o {0} '"Printer name'"", tempFile);
string pdfPrinterLocation = @"C:'Program Files (x86)'Adobe'Reader 9.0'Reader'AcroRd32.exe";
try
{
ProcessStarter processStarter = new ProcessStarter("AcroRd32", pdfPrinterLocation, pdfArguments);
processStarter.Run();
processStarter.WaitForExit();
processStarter.Stop();
}
finally
{
File.Delete(tempFile);
}
}
另外，ServiceProcessInstaller必须将"Account"设置为"LocalSystem"。当我创建服务时，我将此用户设置为"本地服务"，它不起作用。我没有尝试输入"网络服务"或"用户"
我通过本文中的注册表编辑解决了这个问题:https://support.microsoft.com/en-us/kb/184291.
据我所知，从Windows服务(以及IIS)打印使用SYSTEM帐户。这个帐户没有访问打印机的权限，但是这些注册表编辑给了这个SYSTEM帐户打印权限。
以下是摘要:
- 导出3个密钥("regedit.exe中的文件夹")到。reg文件:
- HKEY_CURRENT_USER'Software'Microsoft'Windows NT'当前版本'Devices
- HKEY_CURRENT_USER'Software'Microsoft'Windows NT'当前版本'PrinterPorts
- HKEY_CURRENT_USER'Software'Microsoft'Windows NT'当前版本'Windows
- 编辑您的3个新创建的reg文件，并将"HKEY_CURRENT_USER"更改为"HKEY_USERS'。默认" 在资源管理器中双击你的3个reg文件(这会将它们添加到注册表中)
这就是所有需要的。这帮助我在IIS 7中从PHP打印pdf文件到打印机。只要服务器在运行脚本时恰好有管理员登录，我的php脚本就可以正常工作。现在没有人需要登录，脚本仍然工作:)
您没有提到操作系统，但我怀疑您遇到了Windows Vista、Server 2008和后续操作系统版本中添加的Session 0隔离功能
受此特性影响的应用程序类包括:
创建UI的服务
尝试使用窗口消息函数(如SendMessage和PostMessage)与应用程序通信的服务。
应用程序创建全局命名对象。