HTML转为office WORD方案

╰半橙微兮° 2022-09-11 11:26 298阅读 0赞

# HTML2Word #

目前转换html与word有很多方案，这里只说明windows下的。

1.  使用HtmlToOpenXml库，直接转换，问题是只支持基础的，不支持CSS（效果一般）
2.  使用Xceed收费版，insertContent, 自带RTF/HTML转换功能（没用过）
3.  使用Office自带的打开和另存为功能，间接转换。(效果最接近)

# 参考代码 #

using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    using Xceed.Words.NET;
    using Xceed.Document.NET;
    using System.IO;
    using DocumentFormat.OpenXml;
    using DocumentFormat.OpenXml.Packaging;
    using DocumentFormat.OpenXml.Wordprocessing;
    using HtmlToOpenXml;
    using MSWord = Microsoft.Office.Interop.Word;
    
    namespace docxdemo
    {
        public partial class Form1 : Form
        {
            public Form1()
            {
                InitializeComponent();
            }
    
            private void button1_Click(object sender, EventArgs e)
            {
                // 将一个文档合并到另外一个里面
                using (var document = DocX.Load("file1.docx"))
                {
                    // goto end of document
                    
    
                    for(var i = 0; i < 3; i++) { 
                        using (var document2 = DocX.Load("file2.docx"))
                        {
                            // Insert a document at the end of another document.
                            // When true, document is added at the end. When false, document is added at beginning.
                            document.InsertDocument(document2, true, false, MergingMode.Local);
    
                        }
                    }
    
                    // Save the changes to the document
                    document.SaveAs("demo.docx");
    
                    System.Diagnostics.Process.Start("demo.docx");
                }
            }
    
            private void button2_Click(object sender, EventArgs e)
            {
                // 通过第三方库将html转换为word
                const string filename = "file2.docx";
                string html = textBox1.Text;
    
                if (File.Exists(filename)) File.Delete(filename);
    
                using (MemoryStream generatedDocument = new MemoryStream())
                {
                    using (WordprocessingDocument package = WordprocessingDocument.Create(generatedDocument, WordprocessingDocumentType.Document))
                    {
                        MainDocumentPart mainPart = package.MainDocumentPart;
                        if (mainPart == null)
                        {
                            mainPart = package.AddMainDocumentPart();
                            new DocumentFormat.OpenXml.Wordprocessing.Document(new Body()).Save(mainPart);
                        }
    
                        HtmlConverter converter = new HtmlConverter(mainPart);
                        converter.ParseHtml(html);
    
                        mainPart.Document.Save();
                    }
    
                    File.WriteAllBytes(filename, generatedDocument.ToArray());
                }
    
                System.Diagnostics.Process.Start(filename);
            }
    
            private void button3_Click(object sender, EventArgs e)
            {
                // 通过office自带的功能将html转换为word
                string source = "demo.htm";
                string target = "./msdemo.docx";
    
                using (var ht = File.Open(source, FileMode.OpenOrCreate))
                {
                    var txt = $"<html>{ textBox1.Text}</html>";
                    var buff = Encoding.UTF8.GetBytes(txt);
                    ht.Write(buff, 0, buff.Length);
                    ht.Close();
                }
    
    
                MSWord._Application newApp = new MSWord.Application();
                //try
                //{
                //    this.app = (Application)Microsoft.VisualBasic.Interaction.GetObject(null, "Word.Application");
                //}
                //catch
                //{
                //    this.app = new Application();
                //}
                MSWord.Documents d = newApp.Documents;
                object Unknown = Type.Missing;
                object format = MSWord.WdOpenFormat.wdOpenFormatWebPages;  //Microsoft.Office.Interop.Word.WdOpenFormat
                object enc = Microsoft.Office.Core.MsoEncoding.msoEncodingUTF8; //msoEncodingAutoDetect;
    
                object src = Path.GetFullPath("./demo.htm");
                MSWord.Document od = d.Open(ref src, false,
                                         ref Unknown, ref Unknown, ref Unknown,
                                         ref Unknown, ref Unknown, ref Unknown,
                                         ref Unknown, ref format, ref enc,
                                         ref Unknown, ref Unknown, ref Unknown, ref Unknown);
    
    
                object targ = Path.GetFullPath("./msdemo.docx");
                object format2 = MSWord.WdSaveFormat.wdFormatDocumentDefault;
                od.SaveAs2(targ, ref format2,
                //newApp.ActiveDocument.SaveAs(targ, ref format2,
                            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);
    
                od.Close(MSWord.WdSaveOptions.wdDoNotSaveChanges);
                newApp.Quit(MSWord.WdSaveOptions.wdDoNotSaveChanges);
    
                System.Diagnostics.Process.Start(targ.ToString());
            }
        }
    }