<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> </head> <body> <!-- 2.创建页面元素 --> <div id="upload"> <input id="file" type="file" name="file" /> <button id="btnButton" type="button">提交2</button> </div> <script type="text/javascript" src="js/jquery-3.4.1.min.js"></script> <script type="text/javascript" src="js/jquery-form.js"></script> <script type="text/javascript"> $(function(){ $("#btnButton").click(function () { sendRequest(); return false; }); }) var BYTES_PER_CHUNK =1 * 1024 * 1024; // 每个文件切片大小定为1MB . var slices; var totalSlices; //发送请求 function sendRequest() { var blob = document.getElementById("file").files[0]; var start = 0; var end; var index = 0; // 计算文件切片总数 slices = Math.ceil(blob.size / BYTES_PER_CHUNK); totalSlices= slices; while(start < blob.size) { end = start + BYTES_PER_CHUNK; if(end > blob.size) { end = blob.size; } uploadFile(blob, index, start, end); start = end; index++; if ( index>=totalSlices ) location="reboot.htm"; } } //上传文件 function uploadFile(blob, index, start, end) { var xhr; var fd; var chunk; var sliceIndex=blob.name+index; chunk =blob.slice(start,end);//切割文件 fd = new FormData(); fd.append("UpgradeFileName", chunk, sliceIndex); var xhr = new XMLHttpRequest(); xhr.open('POST', 'http://192.168.10.134:8080/Training/UploadVideo', false);//false指同步上传，因为我的服务器内存较小，选择同步，如果追求速度，可以选择 //ture，异步上传 xhr.send(fd); if((xhr.status >=200 && xhr.status < 300) || xhr.status == 304){ setTimeout("",10); }else{ uploadFile(blob, index, start, end); } } </script> </body> </html>
/// <summary> /// 文件合并 /// </summary> /// <param name="files">文件列表</param> /// <param name="fullName">存放路径</param> public static void FileMerge(List<string> files, string fullName) { if (!(files.Count > 0)) { throw new Exception("文件列表为空"); } foreach (string item in files) { if (!File.Exists(item)) { throw new Exception(string.Format("文件{0}不存在", item)); } } byte[] buffer = new byte[1024 * 100]; using (FileStream outStream = new FileStream(fullName, FileMode.Create)) { int readedLen = 0; FileStream srcStream = null; for (int i = 0; i < files.Count; i++) { srcStream = new FileStream(files[i], FileMode.Open); while ((readedLen = srcStream.Read(buffer, 0, buffer.Length)) > 0) { outStream.Write(buffer, 0, readedLen); } srcStream.Close(); } } }