Computer/controller/printInfo.cs

using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using OfficeOpenXml;
using Spire.Xls;
using System.IO;

namespace WebApplication.controller
{
    public class printInfo
    {
        public void WriteDataToExcelTemplate(string templatePath, string outputPath, string data,string name)
        {

            //WriteDataToExcelTemplate(templatePath, outputPath, data);
            // 加载 Excel 模板文件
            ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
            using (ExcelPackage package = new ExcelPackage(new FileInfo(templatePath)))
            {
                    switch (name)
                    {
                        case "采购申请":
                        ExcelWorksheet worksheetCG = package.Workbook.Worksheets[0];
                        string nameCG = worksheetCG.ToString();
                        if (nameCG == "采购申请")
                        {
                            //int colCount = worksheet.Dimension.End.Column;  //get Column Count
                            //int rowCount = worksheet.Dimension.End.Row;     //get row count

                            // 遍历数据，逐行写入到工作表中
                            int i = 10; // 第一行是标题，从第二行开始写入数据

                            worksheetCG.Cells["B2"].Value = "合同编号";
                            worksheetCG.Cells["F2"].Value = "创建时间";
                            worksheetCG.Cells["B3"].Value = "拥有者";
                            worksheetCG.Cells["F4"].Value = "所属部门";
                            worksheetCG.Cells["B4"].Value = "主题";
                            worksheetCG.Cells["B5"].Value = "合同名称";
                            worksheetCG.Cells["B6"].Value = "供应商";
                            worksheetCG.Cells["B7"].Value = "联系人";
                            worksheetCG.Cells["F7"].Value = "联系方式";
                            worksheetCG.Cells["B8"].Value = "采购内容类型";
                            worksheetCG.Cells["F8"].Value = "合同金额";
                            //for (int row = 10; row <= data.Count; row++)
                            //{

                            //}
                            worksheetCG.Cells["B11"].Value = "合同事由";
                            worksheetCG.Cells["B12"].Value = "备注";
                        }
                        break;
                        case "OA审批":
                        JObject arrdata = JsonConvert.DeserializeObject<JObject>(data);
                        ExcelWorksheet worksheetOA = package.Workbook.Worksheets[0];
                        string nameOA = worksheetOA.ToString();
                        if (nameOA == "OA审批")
                        {
                            worksheetOA.Cells["B2"].Value = arrdata["F0000001"].ToString();         //标题
                            worksheetOA.Cells["F2"].Value = arrdata["F0000006"].ToString();         //创建人
                            worksheetOA.Cells["B3"].Value = arrdata["F0000004"].ToString();         //审批单号
                            worksheetOA.Cells["B4"].Value = arrdata["F0000007"].ToString();         //结束时间
                            worksheetOA.Cells["F4"].Value = arrdata["F0000002"].ToString();         //发起时间
                            worksheetOA.Cells["B5"].Value = arrdata["F0000009"].ToString();         //时长
                            worksheetOA.Cells["B6"].Value = arrdata["F0000010"].ToString();         //同行人
                            worksheetOA.Cells["B7"].Value = arrdata["F0000011"].ToString();         //事由
                            worksheetOA.Cells["B8"].Value = arrdata["F0000012"].ToString();         //费用出处
                            worksheetOA.Cells["B9"].Value = arrdata["F0000005"].ToString();         //附件
                            worksheetOA.Cells["B10"].Value = arrdata["F0000013"].ToString();        //说明
                            worksheetOA.Cells["B11"].Value = arrdata["F0000014"].ToString();        //审批流程
                        }
                        break;
                    }
                //excelToPdf(new FileInfo(outputPath), outputPath)
                // 保存 Excel 文件
                package.SaveAs(new FileInfo(outputPath));
            }
        }

        /// <summary>
        /// Excel转PDF
        /// </summary>
        /// <param name="LoadFromFile">文件地址</param>
        /// <param name="SaveToPdf">输出文件地址</param>
        public void excelToPdf(string LoadFromFile, string SaveToPdf)
        {
            Workbook workbook = new Workbook();
            workbook.LoadFromFile(LoadFromFile);
            Worksheet sheet = workbook.Worksheets[0];
            sheet.SaveToPdf(SaveToPdf);
        }
    }
}