使用NPOI读取Word文档内容并进行修改

前言

网上使用NPOI读取Word文件的例子现在也不少，本文就是参考网上大神们的例子进行修改以适应自己需求的。

参考博文

http://www.cnblogs.com/mahongbiao/p/3760878.html

本文使用的NPOI版本是 2.1.1.0(.net2.0)  下载链接  https://files.cnblogs.com/files/masonblog/NPOI2-1-1DotNet2-0.zip

本例Word文档  https://files.cnblogs.com/files/masonblog/NPOIWordTestRun.zip

运行结果

示例代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Data;
using System.Web.UI.WebControls;
using System.IO;
using GXEIS.Web.Main.Common;
using System.Configuration;
using Newtonsoft.Json;
using NPOI.XWPF.UserModel;
using NPOI.OpenXmlFormats.Wordprocessing;
using System.Text;

namespace CourseMgr
{
    public partial class CourseList : PageBase
    {

        BLL.Course _CourseBLL = null;
        Model.v_Course _v_CourseModel = null;
        BLL.Grade _GradeBLL = null;
        Model.Grade _GradeModel = null;
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                ExportToWordByTemplate();
            }
        }

        #region 根据课程表模板下载Word文档

        /// <summary>
        /// 根据课程表模板下载Word文档
        /// </summary>
        /// <param name="fileName"></param>
        /// <returns></returns>
        public void ExportToWordByTemplate()
        {
            string sClassName = hfSelectedClass.Value.Trim();
            string sYear1 = txtYear1.Text.Trim();
            string sYear2 = txtYear2.Text.Trim();
            string sSemester = txtSemester.Text.Trim();
            string sYear = sYear1 + "-" + sYear2;
            #region 数据验证
            if (string.IsNullOrEmpty(sClassName))
            {
                Windows.MessageBox(Page, "请先选择班级", MessageType.Normal);
                return;
            }
            if (string.IsNullOrEmpty(sYear1))
            {
                Windows.MessageBox(Page, "学年不可为空", MessageType.Normal);
                return;
            }
            if (string.IsNullOrEmpty(sYear2))
            {
                Windows.MessageBox(Page, "学年不可为空", MessageType.Normal);
                return;
            }
            if (string.IsNullOrEmpty(sSemester))
            {
                Windows.MessageBox(Page, "学期不可为空", MessageType.Normal);
                return;
            }
            #endregion
            try
            {
                #region 获取课程表数据
                DataTable dtExport = new DataTable();
                BLL.Grade GradeBLL = new BLL.Grade();
                Model.Grade GradeModel = GradeBLL.GetModelByGradeClassName(CurrentOperator.OrgNo, sClassName);
                _CourseBLL = new BLL.Course();
                DataView dvResult = _CourseBLL.GetViewList(string.Format("OrgNo='{0}' and YearStr='{1}' and Semester='{2}' and ClassNo='{3}' ", CurrentOperator.OrgNo, sYear, sSemester, GradeModel.GradeNo)).Tables[0].DefaultView;
                #endregion

                #region 打开文档
                string fileName = Server.MapPath(@"~/Upload/CourseExportTemplate/班级课程表模板.doc");
                if (!File.Exists(fileName))
                {
                    Windows.MessageBox(Page, "导出失败：课程表模板不存在！", MessageType.Normal);
                    return;
                }
                XWPFDocument document = null;
                using (FileStream file = new FileStream(fileName, FileMode.Open, FileAccess.Read))
                {
                    document = new XWPFDocument(file);
                }

                #endregion

                #region 正文段落
                foreach (XWPFParagraph paragraph in document.Paragraphs)
                {
                    //判断是否是"**课程表"标题
                    if (paragraph.ParagraphText.Contains("GradeClassName课程表"))
                    {
                        IList<XWPFRun> listRun = paragraph.Runs;
                        while (listRun.Count > 0)
                        {
                            paragraph.RemoveRun(0);
                        }
                        XWPFRun xwpgr1 = paragraph.CreateRun();
                        xwpgr1.SetBold(true);
                        xwpgr1.FontSize = 23;
                        xwpgr1.SetText(sClassName + "课程表");
                        xwpgr1.SetTextPosition(30);
                    }
                }
                #endregion

                #region 表格
                int iRow = 0;//表中行的循环索引
                int iCell = 0;//表中列的循环索引
                //1.循环Word文档中的表格(该Word模板中就一个课程表)
                foreach (XWPFTable table in document.Tables)
                {
                    //2.循环表格行
                    foreach (XWPFTableRow row in table.Rows)
                    {
                        iRow = table.Rows.IndexOf(row);//获取该循环在List集合中的索引
                        //3.循环没行中的列
                        foreach (XWPFTableCell cell in row.GetTableCells())
                        {
                            iCell = row.GetTableCells().IndexOf(cell);//获取该循环在List集合中的索引
                            //4.进行单元格中内容的获取操作
                            //4.1获取单元格中所有的XWPFParagraph(单元格中每行数据都是一个XWPFParagraph对象)
                            IList<XWPFParagraph> listXWPFParagraph = cell.Paragraphs;
                            //4.1.1如果列中的XWPFParagraph为1个以上则是课程+教师，进行数据操作。
                            if (listXWPFParagraph.Count > 1)
                            {
                                //4.2根据行列获取对应的星期节次的课程信息
                                dvResult.RowFilter = string.Format(" Section='{0}' and WorkingDay='{1}' ", iRow + 1, iCell + 1);
                                //4.2.1获取到对应的课程信息，将单元格中的课程名称和教师名称进行替换
                                if (dvResult.Count > 0)
                                {
                                    //第一个XWPFParagraph为课程名称
                                    XWPFParagraph xwpfPCource = listXWPFParagraph[0];
                                    if (xwpfPCource != null)
                                    {
                                        //获取现有的Run集合
                                        IList<XWPFRun> listRun = xwpfPCource.Runs;
                                        //循环移除
                                        while (listRun.Count > 0)
                                        {
                                            xwpfPCource.RemoveRun(0);
                                        }
                                        //添加获取的数据
                                        XWPFRun xwpgRScience = xwpfPCource.CreateRun();
                                        xwpgRScience.SetText(dvResult[0]["ScienceName"].ToString().Trim());
                                        xwpgRScience.FontSize = 12;
                                        xwpfPCource.AddRun(xwpgRScience);
                                    }
                                    //第二个XWPFParagraph为教师名称
                                    XWPFParagraph xwpfPTeacher = listXWPFParagraph[1];
                                    if (xwpfPTeacher != null)
                                    {
                                        //获取现有的Run集合
                                        IList<XWPFRun> listRun = xwpfPTeacher.Runs;
                                        //循环移除
                                        while (listRun.Count > 0)
                                        {
                                            xwpfPTeacher.RemoveRun(0);
                                        }
                                        //添加获取的数据
                                        XWPFRun xwpgRTeacher = xwpfPTeacher.CreateRun();
                                        xwpgRTeacher.SetText(dvResult[0]["TeacherName"].ToString().Trim());
                                        xwpgRTeacher.FontSize = 12;
                                        xwpfPTeacher.AddRun(xwpgRTeacher);
                                    }
                                }
                                //4.2.2没有对应的课程信息。为了美观，移除单元格中的第二个XWPFParagraph，避免出现多个换行符。
                                else
                                {
                                    cell.RemoveParagraph(1);
                                }
                            }
                            //4.1.2如果列中的XWPFParagraph为1个则是标题单元格(星期和节次)，不进行数据操作。
                            else { }
                        }
                    }
                }
                #endregion

                #region 导出文件
                System.IO.MemoryStream ms = new System.IO.MemoryStream();
                document.Write(ms);
                Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.doc", HttpUtility.UrlEncode(sClassName + "课程表", System.Text.Encoding.UTF8)));
                Response.BinaryWrite(ms.ToArray());
                Response.End();
                #endregion
            }

            catch (Exception ex)
            {
                Windows.MessageBox(Page, "导出失败！", MessageType.Normal);
                LogWrite("导出失败！", ex.ToString(), CurrentOperator.OperatorNo, ResourceID);
            }
        }
        #endregion
    }
}