前端代码
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <!--添加外部jQuery脚本--> <script src="http://code.jquery.com/jquery-3.1.1.min.js"></script> </head> <body> <!--普通固定url下载--> <a href="http://localhost:56657/api/Zip">本地测试下载</a> <br /> <textarea id="fileUrl" placeholder="填写多个文件路径换行符分隔"></textarea> <br /> <input id="getname" type="text" placeholder="填写生成的压缩名文件字" value="myzip.zip" /> <!--根据表单参数生成url下载--> <a id="download" href="#">本地测试下载2</a> <br /> </body> </html> <script> $(function () { $("#download").click(function () { //根路径 var baseUrl = "http://localhost:56657/api/Zip"; var fileUrls = $("#fileUrl").val().split(/[(\r\n)\r\n]+/); var last = fileUrls.join(','); var getname = $("#getname").val(); //拼接参数url baseUrl = baseUrl + "?ids=" + last + "&getname=" + getname; //打开新窗口下载 window.open(baseUrl); }); }) </script>后端代码
using ICSharpCode.SharpZipLib.Zip; using System; using System.IO; using System.Web; using System.Web.Http; namespace ZipTest.Controllers { public class ZipController : ApiController { public void Get() { string ids = HttpContext.Current.Request.QueryString["ids"]; string getname= HttpContext.Current.Request.QueryString["getname"]; ZipParam body = new ZipParam() { files = ids.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries),// new string[] { "D:\\1.txt", "D:\\2\\2.txt" },// zipFileName = getname//"myzip.zip" //"mytxt.txt" }; #region 原始 //MemoryStream ms = new MemoryStream(); //byte[] buffer = null; //using (ZipFile file = ZipFile.Create(ms)) //{ // file.BeginUpdate(); // //file.NameTransform = new MyNameTransfom(); // foreach (var item in body.files) // { // if (File.Exists(item)) // { // file.Add(item); // } // } // file.CommitUpdate(); // buffer = new byte[ms.Length]; // ms.Position = 0; // ms.Read(buffer, 0, buffer.Length); //读取文件内容(1次读ms.Length/1024M) // ms.Flush(); // ms.Close(); //} //HttpContext.Current.Response.Clear(); //HttpContext.Current.Response.Buffer = true; //HttpContext.Current.Response.ContentType = "application/x-zip-compressed"; //HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=" + HttpUtility.UrlEncode(body.zipFileName)); //HttpContext.Current.Response.BinaryWrite(buffer); //HttpContext.Current.Response.Flush(); //HttpContext.Current.Response.End(); #endregion #region 新 //基础输出流 MemoryStream memoryStream = new MemoryStream(); //使用压缩流 using (ZipOutputStream zipOutputStream = new ZipOutputStream(memoryStream)) //HttpContext.Current.Response.OutputStream { foreach (var item in body.files) { //文件流 FileStream fileStream = File.Open(item, FileMode.Open); string fileName = fileStream.Name; ZipEntry zipEntry = new ZipEntry(fileName); zipEntry.DateTime = DateTime.Now; zipOutputStream.PutNextEntry(zipEntry); fileStream.CopyTo(zipOutputStream); fileStream.Close(); zipOutputStream.Flush(); } zipOutputStream.Finish(); zipOutputStream.Close(); } HttpContext.Current.Response.Clear(); HttpContext.Current.Response.Buffer = true; HttpContext.Current.Response.ContentType = "application/octet-stream";// "text/plain";// "application /x-zip-compressed"; HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=" + HttpUtility.UrlEncode(body.zipFileName)); HttpContext.Current.Response.BinaryWrite(memoryStream.ToArray());// HttpContext.Current.Response.Flush(); HttpContext.Current.Response.End(); #endregion } } public class ZipParam { public string[] files { get; set; } public string zipFileName { get; set; } } }其他参见：
header中Content-Disposition的作用 https://mp.csdn.net/postedit/90411252
MIME http content-type https://mp.csdn.net/postedit/90409200
C# 获取文件名及扩展名 https://mp.csdn.net/postedit/90298912
