C#读写word文档表格数据

背景

在工作中需要对比数据,然后输出一份world文档的对比报告。这需要用C#来读写word文件。

用到的工具

NPOI
NPOI 地址:NPOI
NPOI版本:2.6.0

个人项目的运行时版本:.NET Core 3.1.

解决思路:

既然是要输出一份报告,那么报告的格式是固定的,只需要将报告需要改变的内容进行特殊标记,然后用具体的值替换掉即可

报告部分内容如下:
计算成功successCount,成功率successRate%
这里的successCount 和 successRate 就是要改变的值

接下来的代码如下

    public class BuildReport    {        private string savePath;        public BuildReport()        {            if (!Directory.Exists("Report"))            {                Directory.CreateDirectory("Report");            }            savePath = Path.Combine(Directory.GetCurrentDirectory(), "Report");
        }

        public bool Build(string templatePath, Dictionary<string, string> replaceContent)        {
            string buildedPath = $"{DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss")}.docx";            string filePath = Path.Combine(savePath, buildedPath);            if (replaceContent.Keys.Count == 0)            {                return false;            }            if (string.IsNullOrEmpty(templatePath) || string.IsNullOrEmpty(filePath))            {                return false;            }            try            {
                //读取Word文件,并在此基础上操作                FileStream template = new FileStream(templatePath, FileMode.Open);                //根据提供的文件,创建一个Word文档对象                XWPFDocument doc = new XWPFDocument(template);                //获取Word文档的所有段落对象                IList<XWPFParagraph> paragraphs = doc.Paragraphs;                //处理替换                HandleContent(replaceContent, paragraphs);                IList<XWPFTable> tables = doc.Tables;                int i = 1;                int rowCurrent = 1;
                //获取world文档中的表格                foreach (var item in tables)                {                    //表格行                    // Console.WriteLine($"**********************第{i}个表************************");                    List<XWPFTableRow> rows = item.Rows;                    foreach (var row in rows)                    {                        // Console.WriteLine($"---------------第{rowCurrent}行--------------");                        List<XWPFTableCell> xWPFTableCells = row.GetTableCells();//表格单元格                        foreach (var cell in xWPFTableCells)                        {                            //单元格                            IList<XWPFParagraph> paragraphs1 = cell.Paragraphs;//单元格中的段落                            HandleContent(replaceContent, paragraphs1);                        }                        rowCurrent++;                    }                    ++i;                }                var newFile = File.Create(filePath);                doc.Write(newFile);                newFile.Close();                template.Close();                doc.Close();            }            catch (Exception ex)            {                throw;            }            return false;        }
        /// <summary>        /// 处理要替换的值        /// </summary>        /// <param name="replaceContent">要替换的占位符及其值</param>        /// <param name="paragraphs">文档段落</param>        private void HandleContent(Dictionary<string, string> replaceContent, IList<XWPFParagraph> paragraphs)        {            foreach (var item in paragraphs)            {                foreach (var key in replaceContent.Keys)                {                    if (!item.ParagraphText.Contains(key))                    {                        continue;                    }                    item.ReplaceText(key, replaceContent[key]);                }            }        }    }

程序调用如下

            Dictionary<string, string> dic = new Dictionary<string, string>();            dic.Add("successRate", "100");            dic.Add("successCount", "10000");            BuildReport build = new BuildReport();            build.Build("template.docx", dic);