使用.Net ServiceInstaller在服务安装上设置"启动参数"？

Question

我目前正在编写一个小的Windows服务应用程序,我可以通过以下方式成功地/卸载它等:

        serviceProcessInstaller = new ServiceProcessInstaller();
        serviceInstaller = new System.ServiceProcess.ServiceInstaller();
        serviceProcessInstaller.Account = ServiceAccount.LocalSystem;
        serviceInstaller.ServiceName = "ABC";
        serviceInstaller.StartType = ServiceStartMode.Automatic;
        serviceInstaller.Description = "DEF";
        Installers.AddRange(new Installer[] { serviceProcessInstaller, serviceInstaller });

...但我显然无法在那里设置启动参数......或者我可以吗？我宁愿不继续以后修改注册表..因此问题...有什么办法我可以用编程方式设置这些参数吗？

Answer 1

可以通过P /调用ChangeServiceConfig API来设置参数.它们出现在lpBinaryPathName参数中引用的可执行文件的路径和文件名之后.

当通过Main方法启动时,这些参数将可用于您的服务:

static void Main(string[] args)

(Main传统上位于名为Program.cs的文件中).

以下显示了在正常服务安装逻辑运行后如何修改安装程序以调用此API.您最有可能需要修改的部分是在构造函数中.

using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration.Install;
using System.ComponentModel;
using System.Configuration.Install;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.ServiceProcess;
using System.Text;

namespace ServiceTest
{
    [RunInstaller(true)]
    public class ProjectInstaller : Installer
    {
        private string _Parameters;

        private ServiceProcessInstaller _ServiceProcessInstaller;
        private ServiceInstaller _ServiceInstaller;

        public ProjectInstaller()
        {
            _ServiceProcessInstaller = new ServiceProcessInstaller();
            _ServiceInstaller = new ServiceInstaller();

            _ServiceProcessInstaller.Account = ServiceAccount.LocalService;
            _ServiceProcessInstaller.Password = null;
            _ServiceProcessInstaller.Username = null;

            _ServiceInstaller.ServiceName = "Service1";

            this.Installers.AddRange(new System.Configuration.Install.Installer[] {
                _ServiceProcessInstaller,
                _ServiceInstaller});

            _Parameters = "/ThisIsATest";
        }

        public override void Install(IDictionary stateSaver)
        {
            base.Install(stateSaver);

            IntPtr hScm = OpenSCManager(null, null, SC_MANAGER_ALL_ACCESS);
            if (hScm == IntPtr.Zero)
                throw new Win32Exception();
            try
            {  
                IntPtr hSvc = OpenService(hScm, this._ServiceInstaller.ServiceName, SERVICE_ALL_ACCESS);
                if (hSvc == IntPtr.Zero)
                    throw new Win32Exception();
                try
                {
                    QUERY_SERVICE_CONFIG oldConfig;
                    uint bytesAllocated = 8192; // Per documentation, 8K is max size.
                    IntPtr ptr = Marshal.AllocHGlobal((int)bytesAllocated); 
                    try
                    {
                        uint bytesNeeded;
                        if (!QueryServiceConfig(hSvc, ptr, bytesAllocated, out bytesNeeded))
                        {
                            throw new Win32Exception();
                        }
                        oldConfig = (QUERY_SERVICE_CONFIG) Marshal.PtrToStructure(ptr, typeof(QUERY_SERVICE_CONFIG));
                    }
                    finally
                    {
                        Marshal.FreeHGlobal(ptr);
                    }

                    string newBinaryPathAndParameters = oldConfig.lpBinaryPathName + " " + _Parameters;

                    if (!ChangeServiceConfig(hSvc, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE, SERVICE_NO_CHANGE,
                        newBinaryPathAndParameters, null, IntPtr.Zero, null, null, null, null))
                        throw new Win32Exception();
                }
                finally
                {
                    if (!CloseServiceHandle(hSvc))
                        throw new Win32Exception();
                }
            }
            finally
            {
                if (!CloseServiceHandle(hScm))
                    throw new Win32Exception();
            }
        }

        [DllImport("advapi32.dll", CharSet=CharSet.Auto, SetLastError=true)]
        private static extern IntPtr OpenSCManager(
            string lpMachineName,
            string lpDatabaseName,
            uint dwDesiredAccess);

        [DllImport("advapi32.dll", CharSet=CharSet.Auto, SetLastError=true)]
        private static extern IntPtr OpenService(
            IntPtr hSCManager,
            string lpServiceName,
            uint dwDesiredAccess);

        [StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto)]
        private struct QUERY_SERVICE_CONFIG {
            public uint dwServiceType;   
            public uint dwStartType;
            public uint dwErrorControl;
            public string lpBinaryPathName;
            public string lpLoadOrderGroup;
            public uint dwTagId;
            public string lpDependencies;
            public string lpServiceStartName;
            public string lpDisplayName;
        }

        [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool QueryServiceConfig(
            IntPtr hService,
            IntPtr lpServiceConfig,
            uint cbBufSize,
            out uint pcbBytesNeeded);

        [DllImport("advapi32.dll", CharSet=CharSet.Auto, SetLastError=true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool ChangeServiceConfig(
            IntPtr hService,
            uint dwServiceType,
            uint dwStartType,
            uint dwErrorControl,
            string lpBinaryPathName,
            string lpLoadOrderGroup,
            IntPtr lpdwTagId,
            string lpDependencies,
            string lpServiceStartName,
            string lpPassword,
            string lpDisplayName);

        [DllImport("advapi32.dll", CharSet = CharSet.Auto, SetLastError = true)]
        [return: MarshalAs(UnmanagedType.Bool)]
        private static extern bool CloseServiceHandle(
            IntPtr hSCObject);

        private const uint SERVICE_NO_CHANGE = 0xffffffffu;
        private const uint SC_MANAGER_ALL_ACCESS = 0xf003fu;
        private const uint SERVICE_ALL_ACCESS = 0xf01ffu;
    }
}

Answer 2

这是一个更简洁的答案:

在ServiceInstaller类(使用Installer作为基类的类)中,添加以下两个覆盖:

public partial class ServiceInstaller : System.Configuration.Install.Installer {

    public ServiceInstaller () {
         ...
    }

    protected override void OnBeforeInstall(System.Collections.IDictionary savedState) {
        Context.Parameters["assemblypath"] += "\" /service";
        base.OnBeforeInstall(savedState);
    }

    protected override void OnBeforeUninstall(System.Collections.IDictionary savedState) {
        Context.Parameters["assemblypath"] += "\" /service";
        base.OnBeforeUninstall(savedState);
    }


}

Answer 3

我找到了一种在服务安装时添加启动参数的方法：

我是作为服务运行吗