我想使用 win32com 扩展实现 python com 服务器.然后从 .NET 中使用服务器.我使用以下示例来实现 com 服务器，它运行时没有问题，但是当我尝试使用 C# 使用它时，我收到 FileNotFoundException 并显示以下消息Retrieving the COM class factory for component with CLSID {676E38A6-7FA7-4BFF-9179-AE959734DEBB} 由于以下错误而失败:8007007e.".我也发布了 C# 代码.我想知道我是否遗漏了一些我希望得到帮助的东西.
I wanted to implement python com server using win32com extensions. Then consume the server from within the .NET. I used the following example to implement the com server and it runs without a problem but when I try to consume it using C# I got FileNotFoundException with the following message "Retrieving the COM class factory for component with CLSID {676E38A6-7FA7-4BFF-9179-AE959734DEBB} failed due to the following error: 8007007e." . I posted the C# code as well.I wonder if I'm missing something I would appreciate any help.
谢谢，莎拉
#PythonCOMServer.py
import pythoncom
class PythonUtilities:
_public_methods_ = [ 'SplitString' ]
_reg_progid_ = "PythonDemos.Utilities"
# NEVER copy the following ID
# Use"print pythoncom.CreateGuid()" to make a new one.
_reg_clsid_ = pythoncom.CreateGuid()
print _reg_clsid_
def SplitString(self, val, item=None):
import string
if item != None: item = str(item)
return string.split(str(val), item)
# Add code so that when this script is run by
# Python.exe,.it self-registers.
if __name__=='__main__':
print 'Registering Com Server'
import win32com.server.register
win32com.server.register.UseCommandLine(PythonUtilities)
// the C# code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
Type pythonServer;
object pythonObject;
pythonServer = Type.GetTypeFromProgID("PythonDemos.Utilities");
pythonObject = Activator.CreateInstance(pythonServer);
}
}
}
COM 服务器只是一个软件(DLL 或可执行文件)，它将通过定义的协议接受远程过程调用 (RPC).协议的一部分规定服务器必须有一个唯一的 ID，存储在 Windows 的注册表中.在我们的例子中，这意味着您已经注册"了.不存在的服务器.因此错误(未找到组件).
A COM server is just a piece of software (a DLL or an executable) that will accept remote procedure calls (RPC) through a defined protocol. Part of the protocol says that the server must have a unique ID, stored in the Windows' registry. In our case, this means that you have "registered" a server that is not existing. Thus the error (component not found).
所以，它应该是这样的(和往常一样，这是未经测试的代码！):
So, it should be something like this (as usual, this is untested code!):
import pythoncom
class HelloWorld:
_reg_clsctx_ = pythoncom.CLSCTX_LOCAL_SERVER
_reg_clsid_ = "{B83DD222-7750-413D-A9AD-01B37021B24B}"
_reg_desc_ = "Python Test COM Server"
_reg_progid_ = "Python.TestServer"
_public_methods_ = ['Hello']
_public_attrs_ = ['softspace', 'noCalls']
_readonly_attrs_ = ['noCalls']
# for Python 3.7+
_reg_verprogid_ = "Python.TestServer.1"
_reg_class_spec_ = "HelloWorldCOM.HelloWorld"
def __init__(self):
self.softspace = 1
self.noCalls = 0
def Hello(self, who):
self.noCalls = self.noCalls + 1
# insert "softspace" number of spaces
return "Hello" + " " * self.softspace + str(who)
if __name__ == '__main__':
if '--register' in sys.argv[1:] or '--unregister' in sys.argv[1:]:
import win32com.server.register
win32com.server.register.UseCommandLine(HelloWorld)
else:
# start the server.
from win32com.server import localserver
localserver.serve(['{B83DD222-7750-413D-A9AD-01B37021B24B}'])
然后你应该从命令行运行(假设脚本名为 HelloWorldCOM.py):
Then you should run from the command line (assuming the script is called HelloWorldCOM.py):
HelloWorldCOM.py --register
HelloWorldCOM.py
类 HelloWorld 是服务器的实际实现.它公开了一个方法(Hello)和几个属性，两者之一是只读的.使用第一个命令，注册服务器；对于第二个，您运行它，然后它就可以在其他应用程序中使用.
Class HelloWorld is the actual implementation of the server. It expose one method (Hello) and a couple of attributes, one of the two is read-only. With the first command, you register the server; with the second one, you run it and then it becomes available to usage from other applications.
这篇关于从 .NET 使用 Python COM 服务器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！