使用WIN32OLE在红宝石轨道上使用WIN32OLE渲染Word文档

  • Z时代
  • 2024-01-10
  • 分类：问答

当我在当时使用win32ole作为独立应用程序时，一切似乎都正常工作，只要我把它放到我的rails应用程序中，无限循环。使用WIN32OLE在红宝石轨道上使用WIN32OLE渲染Word文档

我试图访问“的https：//microsoft/sharepoint/document.doc”

def generatertm(issue) 
begin 
    word = WIN32OLE.new('word.application') 
    logger.debug("Word Initialized...") 
    word.visible = true 
    myDocLink = "https://microsoft/sharepoint/url.doc" 
    myFile = word.documents.open(myDocLink) 
    logger.debug("File Opened...") 
    puts "Started Reading bookmarks..." 
    myBookMarks = myFile.Bookmarks puts "bookmarks fetched working background task..." 
    print ("Bookmakr Count : " + myBookMarks.Count.to_s + "\n") 
    myBookMarks.each do |i| 
    logger.warn ("Bookmark Name : " + i.Name + "\n") 
    end 
rescue WIN32OLERuntimeError => e 
    puts e.message 
    puts e.backtrace.inspect 
    else 
ensure 
word.activedocument.close(true) # presents save dialog box 
#word.activedocument.close(false) # no save dialog, just close it 
word.quit 
end 
end

当我在那个时候单独运行这段代码放置一次拉网来为微软共享点凭据。然而在杂种的轨道上它进入了无限循环。

我需要处理这个弹出来通过Rails出现吗？

回答：

您是否打算修补win32ole.rb文件？

基本上，这里的修补程序的原因：

t turns out that win32ole.rb patches the thread to call the windows OleInitialize() & OleUninitialize() functions around the yield to the block. However, the MS documentation for CoInitialize (which OleInitialize calls internally) state that: "the first thread in the application that calls CoInitialize with 0 (or CoInitializeEx with COINIT_APARTMENTTHREADED) must be the last thread to call CoUninitialize. Otherwise, subsequent calls to CoInitialize on the STA will fail and the application will not work." http://msdn.microsoft.com/en-us/library/ms678543(v=VS.85).aspx

而这里的修改win32ole.rb文件来解决线程问题：

require 'win32ole.so' 
# Fail if not required by main thread. 
# Call OleInitialize and OleUninitialize for main thread to satisfy the following: 
# 
# The first thread in the application that calls CoInitialize with 0 (or CoInitializeEx with COINIT_APARTMENTTHREADED) 
# must be the last thread to call CoUninitialize. Otherwise, subsequent calls to CoInitialize on the STA will fail and the 
# application will not work. 
# 
# See http://msdn.microsoft.com/en-us/library/ms678543(v=VS.85).aspx 
if Thread.main != Thread.current 
    raise "Require win32ole.rb from the main application thread to satisfy CoInitialize requirements." 
else 
    WIN32OLE.ole_initialize 
    at_exit { WIN32OLE.ole_uninitialize } 
end 
# re-define Thread#initialize 
# bug #2618(ruby-core:27634) 
class Thread 
    alias :org_initialize :initialize 
    def initialize(*arg, &block) 
    if block 
     org_initialize(*arg) { 
     WIN32OLE.ole_initialize 
     begin 
      block.call(*arg) 
     ensure 
      WIN32OLE.ole_uninitialize 
     end 
     } 
    else 
     org_initialize(*arg) 
    end 
    end 
end

http://cowlibob.co.uk/ruby-threads-win32ole-coinitialize-and-counin

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