CSharp读写word文档数据

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);