一、本示例使用環境:Net Core3.1、WebAPI、Linux
二、使用核心類:ZipFile
三、示例代碼(親測有效)
using System.Net.Http; using System.IO.Compression;
[HttpGet,Route("DownFile")] [Authorize] public async Task<ApiResponse<string>> DownFile() { //自定義的返回結果類 ApiResponse<string> result = new ApiResponse<string>(); try { //遠程下載多個文件的地址 List<string> filePaths = new List<string>() { "http://model.netai.vip/myupfiles/u4f/201029115909/cover-fece024a-af02-4e75-b78b-ce6b0b2c697f.jpg", "http://model.netai.vip/myupfiles/u4f/201029115909/obj-d7074dca-cead-4bd0-965a-fc60b02db5ce.obj", "http://model.netai.vip/myupfiles/u4f/201029115909/material-3ac7911f-64c0-4765-bf0f-26c0972023aa.mtl", "http://model.netai.vip/myupfiles/u4f/201029115909/handpaint-118835d2-6286-49b5-9cc3-b7e123a41bbd.aim" }; //多個文件的重命名 List<string> fileNames = new List<string>() { "cover.jpg", "obj.obj", "material.mtl", "handpaint.aim" }; //先判斷是否保存有上次打包的壓縮文件 if (System.IO.File.Exists(Directory.GetCurrentDirectory() + "/wwwroot/ziliao.zip")) { System.IO.File.Delete(Directory.GetCurrentDirectory() + "/wwwroot/ziliao.zip"); } //准備用來存放下載的多個文件流目錄 string pathZip = Directory.GetCurrentDirectory() + "/wwwroot/downfile/"; for (int i = 0; i < filePaths.Count; i++) { string newPath = pathZip + "dir"+i; if (!Directory.Exists(newPath)) { Directory.CreateDirectory(newPath); } string path = filePaths[i]; HttpClient client = new HttpClient(); client.BaseAddress = new Uri(path); //根據文件信息中的文件地址獲取遠程服務器,返回文件流 var stream = await client.GetStreamAsync(path); var fils = File(stream, "application/vnd.android.package-archive", Path.GetFileName(path)); //創建文件流(文件路徑,文件操作.創建) using (FileStream fs = new FileStream(newPath + "/" + fileNames[i], FileMode.Create)) { //復制文件流 fils.FileStream.CopyTo(fs); } } //對多個文件流所在的目錄進行壓縮 ZipFile.CreateFromDirectory(Directory.GetCurrentDirectory() + "/wwwroot/downfile/", Directory.GetCurrentDirectory() + "/wwwroot/" + "ziliao.zip"); //刪除目錄以及目錄下的子文件 //存在即刪除 if (Directory.Exists(pathZip)) { Directory.Delete(pathZip, true); } //result.code = flag ? StatusCodes.Status200OK : StatusCodes.Status417ExpectationFailed; result.message = "壓縮成功"; } catch (Exception ex) { result.message = "上傳異常,原因:" + ex.Message; } return result; }
注意:示例中的多個文件下載地址已不可用,需要替換成你們自己的文件所在地址
壓縮完成后,可前往項目下的/wwwroot/downfile/目錄查看壓縮好的ziliao.zip文件,並且壓縮文件的目錄結構可以隨自己的實際情況進行改動
本文為我自己原創,轉載請注明出處,謝謝~