使用OpenXml转换docx内容为RTF

本文主要是介绍使用OpenXml转换docx内容为RTF，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

实际上这是个非常蛋疼的命题。它需要你有两个方面的能力：

1. 你实际RTF格式。

2. 你知道在OpenXml格式的文档中各种Style存在于哪个部份。

由于完整的RTF style非常多。我这里只写了一个最简单的例子，希望它能起排线的作用：

假设我有一个docx文档如下：

Hello!

This is a test text.

用Open Xml转换成RTF代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using SD = System.Drawing;
using DocumentFormat.OpenXml.Packaging;
using DocumentFormat.OpenXml.Wordprocessing;
using com.mksword.Net.OpenXmlTools;
using System.Text.RegularExpressions;namespace ConsoleApplication10
{class Class1 : WordprocessingDocumentUtil {private static Dictionary<char, int> map = new Dictionary<char, int>{{'A',10},{'B',11},{'C',12},{'D',13},{'E',14},{'F',15},{'9',9},{'8',8},{'7',7},{'6',6},{'5',5},{'4',4},{'3',3},{'2',2},{'1',1},{'0',0}};public void Action(){OpenedDocumentHandler(ConvertDoc2Rtf);}private bool ConvertDoc2Rtf(WordprocessingDocument WPD){bool result = false;string source1 = "{\\rtf1\\ansi";string colortable = null;int colorIndex = 0;string strsource = "";MainDocumentPart MDP = WPD.MainDocumentPart;Document Doc = MDP.Document;foreach (Paragraph P in Doc.Descendants<Paragraph>().ToList()){foreach (Run R in P.Descendants<Run>().ToList()){if (R.RunProperties == null){Text T = R.Descendants<Text>().FirstOrDefault();strsource += T.Text;}else{RunProperties RPs = R.RunProperties;Color C = RPs.Descendants<Color>().FirstOrDefault();Text T = R.Descendants<Text>().FirstOrDefault();bool flag = false;if (C != null){if (colortable != null){colortable += RTFColorTable(C);}else{colortable = "\n{\\colortbl ;";colortable += RTFColorTable(C);}colorIndex++;strsource += "\\cf" + colorIndex.ToString()+" ";flag = true;}Underline UL = RPs.Descendants<Underline>().FirstOrDefault();if (UL != null){strsource += "\\ul " + T.Text + "\\ulnone";}else{strsource += T.Text+ " ";}if (colortable != null && flag){strsource += "\\cf0 ";}}}strsource += "\\par\n";}if (colortable != null){colortable += "}\n";source1 += colortable + strsource + "\n}";}else{source1 += strsource + "\n}";}SetLog(source1, OXULogType.INFO);Clipboard.SetText(source1);return result;}private string RTFColorTable(Color Color){string result = null;Regex regex = new Regex("([0-9 a-f A-F]{2})([0-9 a-f A-F]{2})"+ "([0-9 a-f A-F]{2})");Match match = regex.Match(Color.Val);result += "\\red" + Hex2Dec(match.Groups[1].Value);result += "\\green" + Hex2Dec(match.Groups[2].Value);result += "\\blue" + Hex2Dec(match.Groups[3].Value) + ";";return result;}private string Hex2Dec(string Hex){string result = null; char[] buffer = Hex.ToUpper().ToCharArray();int r = 0;for (int i = 0; i < 2; i++){r += i == 0 ? 16 * map[buffer[i]] : map[buffer[i]];}result = r.ToString();return result;}}
}