新增引用

Edu.WebApi/Controllers/User/HomeController.cs

+using Edu.WebApi.Filter;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Cors;
+using Microsoft.AspNetCore.Mvc;
+using PuppeteerSharp;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+using System.Web;
+
+namespace Edu.WebApi.Controllers.User
+{
+    [Route("api/[controller]/[action]")]
+    [ApiExceptionFilter]
+    [ApiController]
+    [EnableCors("AllowCors")]
+    public class HomeController : BaseController
+    {
+        [HttpGet]
+        [HttpPost]
+        [AllowAnonymous]
+        public string Test()
+        {
+            return "HK";
+        }
+
+        /// <summary>
+        /// 文件流下载
+        /// </summary>
+        /// <returns></returns>
+        [HttpGet]
+        [HttpPost]
+        [AllowAnonymous]
+        public FileContentResult DownloadFileForPdf(int configId, string url)
+        {
+            DateTime start = DateTime.Now;
+            if (!Directory.Exists("Z:"))
+            {
+                Console.WriteLine("AA___Not:Z:");
+                Common.Plugin.LogHelper.WriteInfo(Common.Plugin.NetFileHelper.WNetAddConnection(@"fast-001\administrator", "Vt@2023..", @"\\172.16.103.126\WebFile", "Z:").ToString());
+            }
+            else
+            {
+                Console.WriteLine("BB__Yes:Z:");
+            }
+            Console.WriteLine("{0} DownloadFileForPdf生成pdf....", start.ToString("yyyy-MM-dd HH:mm:ss fff"));
+            try
+            {
+                byte[] bytes = CreateFeatureFileByte(url, configId).Result;
+                DateTime end = DateTime.Now;
+                string logStr = string.Format(@"生成PDF 开始时间:{0} 结束时间:{1} ", start.ToString("yyyy-MM-dd HH:mm:ss fff"), end.ToString("yyyy-MM-dd HH:mm:ss fff"));
+                Console.WriteLine(logStr);
+                return File(bytes, "application/octet-stream");
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("DownloadFileForPdf::ex" + ex.Message);
+            }
+            return File(new byte[0], "application/octet-stream");
+        }
+
+        /// <summary>
+        /// 生成PDF
+        /// </summary>
+        /// <param name="url"></param>
+        /// <returns>byte[]</returns>
+        private async Task<byte[]> CreateFeatureFileByte(string url, int configId)
+        {
+            url = HttpUtility.UrlDecode(url);
+            var chromePath = Common.Config.ReadConfigKey("chromePath");
+            string featurePath = Common.Config.ReadConfigKey("FeaturePath");
+            List<string> argsList = new List<string>();
+            var browserOptions = new LaunchOptions
+            {
+                Headless = true,
+                ExecutablePath = chromePath,
+                Args = argsList.ToArray(),
+            };
+            byte[] pdfBytes = null;
+            using (var browser = await Puppeteer.LaunchAsync(browserOptions))
+            {
+                using (var page = await browser.NewPageAsync())
+                {
+                    await page.GoToAsync(url);
+                    await page.WaitForTimeoutAsync(10 * 1000);
+                    string headerFile = string.Format(@"{0}\\{1}_\\header_1.png", featurePath, configId);
+                    string footerFile = string.Format(@"{0}\\{1}_\\footer_1.png", featurePath, configId);
+                    string headerContent = "";
+                    string top = "0px";
+                    string bottom = "0px";
+                
+                    if (System.IO.File.Exists(headerFile))
+                    {
+                        headerContent = string.Format(@"<img src='data:image/png;base64,{0}' style='width:100%;'></img>", ConvertImageToBase64(headerFile));
+                        top = "92px";
+                    }
+                    string footerContent = "";
+                    if (System.IO.File.Exists(footerFile))
+                    {
+                        footerContent = string.Format(@"<img src='data:image/png;base64,{0}' style='width:100%;height:auto;'></img>", ConvertImageToBase64(footerFile));
+                        bottom = "50px";
+                    }
+                    pdfBytes = await page.PdfDataAsync(new PdfOptions()
+                    {
+                        PrintBackground = true,
+                        MarginOptions = new PuppeteerSharp.Media.MarginOptions()
+                        {
+                            Top = top,
+                            Bottom = bottom,
+                            Left = "0px",
+                            Right = "0px",
+                        },
+                        DisplayHeaderFooter = true,
+                        FooterTemplate = footerContent,
+                        HeaderTemplate = headerContent,
+                    });
+                    await browser.CloseAsync();
+                }
+            }
+            return pdfBytes;
+        }
+
+        private string ConvertImageToBase64(string url)
+        {
+            System.Drawing.Image file = System.Drawing.Image.FromFile(url);
+            using (MemoryStream memoryStream = new MemoryStream())
+            {
+                file.Save(memoryStream, file.RawFormat);
+                byte[] imageBytes = memoryStream.ToArray();
+                return Convert.ToBase64String(imageBytes);
+            }
+        }
+    }
+}

Edu.WebApi/Edu.WebApi.csproj

@@ -30,6 +30,7 @@
     <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="3.0.0" />
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.10.9" />
     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="3.0.0" />
+    <PackageReference Include="PuppeteerSharp" Version="7.1.0" />
     <PackageReference Include="Spire.Doc" Version="8.12.14" />
   </ItemGroup>
   <ItemGroup>

Edu.WebApi/appsettings.json

@@ -124,5 +124,9 @@
   //教师考核审批流程编号
   "TeacherAssessmentFlowId": 12,
   //不验证学员状态的订单(1382：商务日语听说班【企业课】)
-  "NoCheckOrders": "1382"
+  "NoCheckOrders": "1382",
+  //chrome浏览器地址
+  "chromePath": "C:/Users/Administrator/AppData/Local/Google/Chrome/Application/chrome.exe",
+  //行程头部底部图片
+  "FeaturePath": "E:\\WebFile\\Feature\\"
 }
\ No newline at end of file