C# Service Word“内存不足。立即保存文档”

Question

我正在编写要在服务器上运行的 C# Window 服务（与 OFFICE 一起安装） 我需要将 MS Word DOC 转换为 RTF 文件并将其加载到 RICHTEXTBOX 中，然后将 RTF 字符串和明文字符串获取到 DB（获取明文字符串以进行全文索引以允许用户搜索）

我使用以下代码在服务中执行转换， 但是，它在线上发生了错误 newApp.Documents.Open "内存不足，请立即保存文档"

我检查了服务器任务管理器，我发现 Winword.exe 正在加载大量内存（例如 60~70 Mb）并且它没有退出（嗯，它得到了异常.....>_

我尝试在同一台机器上使用 Windows Form 运行相同的代码，但没有出现错误。 并且该服务已设置为以管理员身份运行。

    private void doc2rtf(object Source, object Target)
    {
        //Creating the instance of Word Application
        Word.Application newApp = new Word.Application();

        newApp.AutomationSecurity = Microsoft.Office.Core.MsoAutomationSecurity.msoAutomationSecurityForceDisable;
        newApp.DisplayAlerts = Word.WdAlertLevel.wdAlertsNone;

        // specifying the Source & Target file names

        // Use for the parameter whose type are not known or  
        // say Missing

        object Unknown = Type.Missing;
        object objReadOnly = true;
        object objFalse = false;
        try
        {
            // Source document open here

            // Additional Parameters are not known so that are  
            // set as a missing type
            lw.writeLog(LogWriter.logType.DEBUG, "before newApp.Documents.Open", Source.ToString());
            newApp.Documents.Open(ref Source, ref Unknown,
                 ref objReadOnly, ref Unknown, ref Unknown,
                 ref Unknown, ref Unknown, ref Unknown,
                 ref Unknown, ref Unknown, ref Unknown,
                 ref Unknown, ref Unknown, ref Unknown, ref Unknown);
            lw.writeLog(LogWriter.logType.DEBUG, "after newApp.Documents.Open", Source.ToString());
            // Specifying the format in which you want the output file 

            object format = Word.WdSaveFormat.wdFormatRTF;

            //check header footer exists.
            lw.writeLog(LogWriter.logType.DEBUG, "before newApp.ActiveDocument.SaveAs", Target.ToString());
            //Changing the format of the document
            newApp.ActiveDocument.SaveAs(ref Target, ref format,
                    ref Unknown, ref Unknown, ref Unknown,
                    ref Unknown, ref Unknown, ref Unknown,
                    ref Unknown, ref Unknown, ref Unknown,
                    ref Unknown, ref Unknown, ref Unknown,
                    ref Unknown, ref Unknown);
            lw.writeLog(LogWriter.logType.DEBUG, "after newApp.ActiveDocument.SaveAs", Target.ToString());
        }
        catch (Exception e)
        {
            lw.writeLog(LogWriter.logType.ERROR, e.Message, "doc2rtf");
        }
        finally
        {
            lw.writeLog(LogWriter.logType.DEBUG, "before newApp.ActiveDocument.Close(", "");
            newApp.ActiveDocument.Close(ref objFalse, ref Unknown, ref Unknown);
            // for closing the application
            lw.writeLog(LogWriter.logType.DEBUG, "after newApp.ActiveDocument.Close(", "");

            lw.writeLog(LogWriter.logType.DEBUG, "before newApp.ActiveDocument.Quit(", "");
            newApp.Quit(ref objFalse, ref Unknown, ref Unknown);
            lw.writeLog(LogWriter.logType.DEBUG, "after newApp.ActiveDocument.Quit(", "");
            newApp = null;

            GC.Collect();
        }
    }

Answer 1

如果您使用的是 Windows Server 2008（或者也可能是 Windows 7），请查看我对 this question 的回答。这可能会有所帮助。

Answer 2

该错误消息几乎毫无用处。这可能意味着权限问题、与 Office 不兼容的 AV 程序、您将其托管在 IIS 中，或者您正在批量执行操作并且需要不时调用 Thread.Sleep 以便 Word 的异步处理可以捕获向上。它也可能意味着损坏的文档模板。可能性似乎与解决它们所需的故障排除步骤一样无穷无尽。

但是当您在 WinForm 中成功运行它时，必须进行一些更改。我要解决权限问题 - 确保运行您的服务的帐户有权访问您尝试打开的文件。