DotNet结合ajax实现分块上传
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Java

DotNet结合ajax实现分块上传

Laughing
Laughing
2019-07-07 / 0 评论 / 1,140 阅读 / 正在检测是否收录...
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本文最后更新于2021年04月27日，已超过1398天没有更新，若内容或图片失效，请留言反馈。

原理就不做介绍了，就是在前端先循环对文件进行分块，然后分别发送到后台，所有分块发送完成后，后台对文件进行合并。

html代码

<!DOCTYPE html>  
<html>  
<head>  
    <meta charset="utf-8" />  
    <title></title>  
    <link href="../Scripts/layui/css/layui.css" rel="stylesheet" />  
    <link href="../Css/fileUpload.css" rel="stylesheet" />  
    <link href="../Css/UpLoadFile.css" rel="stylesheet" />  
    <link href="../Scripts/layui/layui_exts/dtree/dtree.css" rel="stylesheet" />  
    <link href="../Scripts/layui/layui_exts/dtree/font/dtreefont.css" rel="stylesheet" />  
    <script src="../Scripts/Jquery1.12.4/jquery-1.12.4.min.js"></script>  
    <script src="../Scripts/layui/layui.js"></script>  
    <script src="../JS/plupload.full.min.js" type="text/javascript"></script>  
    <script src="../JS/jquery.base64.js" type="text/javascript"></script>  
    <script src="../Scripts/bootstrap3.3.7/js/bootstrap.js"></script>  
    <link href="../Scripts/bootstrap3.3.7/css/bootstrap.css" rel="stylesheet" />  
    <link href="../Scripts/layui/layui_exts/dtree/dtree.css" rel="stylesheet" />  
    <link href="../Scripts/layui/layui_exts/dtree/font/dtreefont.css" rel="stylesheet" />  
    <script>  
        document.write("<script type='text/javascript' src='../JS/ImageServiceDemo.js?rnd=" + Math.random() + "'><\/script>");  
    </script>  
</head>  
<body>  
    <div style="width:100%">  
        <div style="float:left;margin-right:0px;margin-left20px;border-color:aquamarine">  
            <ul id="imageTypesTree" class="dtree" data-id="0" style="width:300px;"></ul>  
        </div>  
        <div style="float:left;width:800px;">  
            <div style="text-align:center" class="form-horizontal">  
                <div class="layui-progress layui-progress-big" lay-showPercent="yes">  
                    <div class="layui-progress-bar layui-bg-green" lay-percent="0%" id="uploadProgress" style="display:none;"></div>  
                </div>  
                <div class="form-group">  
                    <input type="file" multiple id="file" onchange="javascript:onc();" />  
                </div>  
  
                <div class="form-group">  
                    <label for="lastname" class="col-md-2 control-label">计划内码</label>  
                    <div class="col-md-10">  
                        <input type="text" class="form-control" id="jhid" placeholder="计划内码" value="f2617b63-264c-496d-a5de-14725c23941a">  
                    </div>  
                </div>  
  
                <div class="form-group">  
                    <label for="lastname" class="col-md-2 control-label">移交记录内码</label>  
                    <div class="col-md-10">  
                        <input type="text" class="form-control" id="yjjlid" placeholder="计划内码" value="9e6b2a12-89a1-4b7c-81a9-3486aaad3474">  
                    </div>  
                </div>  
  
                <div class="form-group">  
                    <label for="name" class="col-sm-2 control-label">请选择档案类别</label>  
                    <div class="col-sm-10">  
                        <select name="dassfl" id="dassfl" class="form-control">  
                            <option value=""></option>  
                            <option value="td">土地</option>  
                            <option value="fwjzw">房屋建筑物</option>  
                            <option value="swzc">实物资产</option>  
                            <option value="fswzc">非实物资产</option>  
                            <option value="cw">财务</option>  
                            <option value="ry">人员</option>  
                            <option value="da">档案</option>  
                            <option value="wt">问题</option>  
                        </select>  
                    </div>  
                </div>  
  
                <div class="form-group">  
                    <button class="layui-btn layui-btn-radius layui-btn-normal" type="button" onclick="sendRequest();" style="width:150px;">上传大文件</button>  
  
                    <button id="btnUpload" class="layui-btn layui-btn-radius layui-btn-normal" type="button" style="width:150px;">上传</button>  
  
                    <button id="getFilesInfo" class="layui-btn layui-btn-radius layui-btn-normal" type="button" style="width:150px;" onclick="getFilesInfo();">获取附件</button>  
                </div>  
                <div style="text-align:center;margin-top:25px;">  
                    <div id="filelist"></div>  
                </div>  
  
            </div>  
        </div>  
    </div>  
</body>  
</html>

js脚本

var uploadFiles = new Array();  
var layer;  
var dtree = null;  
var imageTypesTree = null;  
var selectTreeNodeId = '';  
  
var BYTES_PER_CHUNK = 1024 * 1024 * 2; // 每个文件切片大小定为2MB .  
var slices;  
var totalSlices;  
  
$(function () {  
    $("#btnUpload").click(function () {  
        checkFileExist(Upload);  
    });  
    layui.use('layer', function () {  
        layer = layui.layer;  
    });  
    getImageType();  
  
    $('#dassfl').change(function () {  
        getImageType();  
    });  
})  
  
function AddFiles(files) {  
    var errstr = "";  
    for (var i = 0; i < files.length; i++) {  
        var filename = files[i].name;  
        var isfind = false;  
        for (var j = 0; j < uploadFiles.length; j++) {  
            if (uploadFiles[j].name == filename) {  
                isfind = true;  
                break;  
            }  
        }  
        var index1 = filename.lastIndexOf(".");  
        var index2 = filename.length;  
        var postf = filename.substring(index1 + 1, index2);//后缀名    
        var myarray = new Array('JPG', 'jpg', 'jpeg', 'JPEG', 'gif', 'GIF', 'png', 'PNG');  
        if (isfind == false) {  
            uploadFiles.push(files[i]);  
        }  
        if (errstr != "") {  
            layer.alert("文件格式错误:" + errstr);  
        }  
    }  
}  
  
function onc() {  
    var files = document.getElementById("file").files;  
  
    if (files.length < 0) {  
        return;  
    }  
    AddFiles(files);  
}  
  
function Upload() {  
    var param = dtree.getNowParam(imageTypesTree);  
    if (JSON.stringify(param) == "{}") {  
        layer.alert('请选择档案类别');  
        return;  
    }  
    var dalb = param.nodeId;  
    var jhid = $('#jhid').val();  
    var yjjlid = $('#yjjlid').val();  
    var dassfl = $('#dassfl').val();  
  
    var files = document.getElementById("file").files;  
    if (files.length <= 0) {  
        alert('请先选择要上传的文件');  
        return;  
    }  
    if (uploadFiles.length <= 0) {  
        alert('上传成功');  
        return;  
    }  
    var formData = new FormData();  
    formData.append("file", uploadFiles[0]);  
    formData.append('jhid', jhid);  
    formData.append('dassfl', dassfl);  
    formData.append('dalb', dalb);  
    formData.append('yjjlid', yjjlid);  
    $.ajax({  
        url: "../Controller/ImageService.ashx?func=uploadimage",  
        type: "POST",  
        data: formData,  
        processData: false,  
        contentType: false,// 不设置内容类型  
        success: function (data) {  
            debugger  
            var result = JSON.parse(data);  
            if (result.IsSuccess != "1") {  
                alert(result.Msg);  
            }  
            uploadFiles.splice(0, 1);  
            Upload();  
        },  
        error: function (XMLHttpRequest, textStatus, errorThrown) {  
            alert(XMLHttpRequest.responseText);  
        }  
    });  
}  
  
function checkFileExist(callBack) {  
    var param = dtree.getNowParam(imageTypesTree);  
    if (JSON.stringify(param) == "{}") {  
        layer.alert('请选择档案类别');  
        return;  
    }  
    var dalb = param.nodeId;  
    var jhid = $('#jhid').val();  
    var yjjlid = $('#yjjlid').val();  
    var dassfl = $('#dassfl').val();  
    var files = document.getElementById("file").files;  
    if (files.length <= 0) {  
        alert('请先选择要上传的文件');  
        return;  
    }  
    var fileExistCheckArr = new Array();  
    for (var i = 0; i < files.length; i++) {  
        fileExistCheckArr.push(files[i].name);  
    }  
    $.ajax({  
        url: "../Controller/ImageService.ashx?func=checkimageexist",  
        type: "POST",  
        async: false,  
        data: { 'jhid': jhid, 'dassfl': dassfl, 'dalb': dalb, 'yjjlid': yjjlid, 'fileNames': JSON.stringify(fileExistCheckArr) },  
        success: function (data) {  
            debugger  
            var result = JSON.parse(data);  
            if (result.IsSuccess == "-1") {  
                layer.confirm(result.Msg, { icon: 3, title: '提示' }, function (index) {  
                    if (index == 1) {  
                        layer.closeAll();  
                        callBack();  
                    }  
                });  
            } else {  
                callBack();  
                alert(result.Msg);  
            }  
        },  
        error: function (XMLHttpRequest, textStatus, errorThrown) {  
            alert(XMLHttpRequest.responseText);  
        }  
    });  
}  
  
function getFilesInfo() {  
    var param = dtree.getNowParam(imageTypesTree);  
    if (JSON.stringify(param) == "{}") {  
        layer.alert('请选择档案类别');  
        return;  
    }  
    var dalb = param.nodeId;  
    var jhid = 'f2617b63-264c-496d-a5de-14725c23941a';  
    var dalb = '581ef7f3-4737-4258-8915-8c86f7121903';  
    var yjjlid = '9e6b2a12-89a1-4b7c-81a9-3486aaad3474';  
    var dassfl = $('#dassfl').val();  
    if (dassfl == 'da') {  
        jhid = 'f09fb1f1-f5f9-4fb9-aeed-2b03e2a50034';  
        dalb = '43aba81f-e803-4db1-8a5c-b626853ebf28';  
        yjjlid = '';  
    }  
    $.ajax({  
        url: "../Controller/ImageService.ashx?func=getimage",  
        type: "POST",  
        async: false,  
        data: { 'jhid': jhid, 'yjjlid': yjjlid, 'dassfl': dassfl },  
        success: function (data) {  
            debugger  
            var result = JSON.parse(data);  
            if (result.IsSuccess == "-1") {  
  
            } else {  
                var filelistArr = JSON.parse(result.Data);  
                $.each(filelistArr, function (index, value) {  
                    $("#filelist").append("<a href='javascript:void(0)' id='" + value.FileID + "' FileID='" + value.FileID + "' BillID='" + value.BillID + "' FileType='" + value.FileType + "' onclick='downLoadImage(this)'>" + value.FileName + "</a><span onclick='deletefile(this)'>删除</span><br/>");  
                })  
            }  
        },  
        error: function (XMLHttpRequest, textStatus, errorThrown) {  
            alert(XMLHttpRequest.responseText);  
        }  
    });  
}  
  
function downLoadImage(obj) {  
    var fileid = $(obj)[0].id;  
    var filename = $(obj).text();  
    url = "../Controller/ImageService.ashx?func=downloadimage&fileid=" + fileid;  
    var xhr = new XMLHttpRequest();  
    xhr.open("POST", url, true);  
    xhr.responseType = "blob";  
    xhr.onload = function () {  
        if (this.status == 200) {  
            var blob = this.response;  
            var reader = new FileReader();  
            reader.readAsDataURL(blob);  
            reader.onload = function (e) {  
                var a = document.createElement('a');  
                a.download = filename;  
                a.href = e.target.result;  
                document.body.appendChild(a);  
                a.click();  
                document.body.removeChild(a);  
            }  
        } else {  
            layer.alert('获取文件失败');  
        }  
    };  
    xhr.send();  
}  
  
  
function deletefile(obj) {  
    var fileid = $(obj).prev("a").attr("FileID");  
    var BillID = $(obj).prev("a").attr("BillID");  
    var FileType = $(obj).prev("a").attr("FileType");  
    var filename = $(obj).prev("a").text();  
    var jhid = 'f2617b63-264c-496d-a5de-14725c23941a';  
    var dalb = '581ef7f3-4737-4258-8915-8c86f7121903';  
    var yjjlid = '9e6b2a12-89a1-4b7c-81a9-3486aaad3474';  
    var dassfl = $('#dassfl').val();  
    if (dassfl == 'da') {  
        jhid = 'f09fb1f1-f5f9-4fb9-aeed-2b03e2a50034';  
        dalb = '43aba81f-e803-4db1-8a5c-b626853ebf28';  
        yjjlid = '';  
    }  
    $.ajax({  
        url: "../Controller/ImageService.ashx?func=deleteimage",  
        type: "POST",  
        async: false,  
        data: { 'fileid': fileid, 'filename': filename, 'jhid': jhid, 'yjjlid': yjjlid, 'dassfl': dassfl, 'dalb': dalb },  
        success: function (data) {  
            debugger  
            var result = JSON.parse(data);  
            if (result.IsSuccess == "-1") {  
                alert(result.Data);  
            } else {  
                alert('删除成功');  
            }  
        },  
        error: function (XMLHttpRequest, textStatus, errorThrown) {  
            alert(XMLHttpRequest.responseText);  
        }  
    });  
}  
  
function getImageType() {  
  
    var jhid = $('#jhid').val();  
    var yjjlid = $('#yjjlid').val();  
    var dassfl = $('#dassfl').val();  
    var step = 'sjcj';  
    debugger  
    $.ajax({  
        url: "../Controller/ZCJSMainPage.ashx?func=getimagetypetree",  
        type: "POST",  
        data: { step: step, dassfl: dassfl, jhid: jhid },  
        success: function (data) {  
            debugger  
            var result = JSON.parse(data);  
            if (result.success == "-1") {  
                layer.alert(result.msg);  
            } else {  
                layui.config({  
                    base: '../Scripts/layui/lay/modules/' //配置 layui 第三方扩展组件存放的基础目录  
                }).extend({  
                    dtree: 'dtree'  
                }).use(['element', 'layer', 'dtree'], function () {  
                    dtree = layui.dtree, layer = layui.layer, $ = layui.$;  
                    // 初始化树                     
                    imageTypesTree = dtree.render({  
                        elem: "#imageTypesTree",  
                        data: JSON.parse(result.data) // 使用data加载  
                    });  
                    // 绑定节点点击  
                    dtree.on("node('imageTypesTree')", function (obj) {  
                        selectTreeNodeId = obj.param.nodeId;  
                        GetFilesInfoDATree(jhid, dassfl, '', step, obj.param.nodeId);  
                    });  
                });  
            }  
        },  
        error: function (XMLHttpRequest, textStatus, errorThrown) {  
            layer.alert(XMLHttpRequest.responseText);  
        }  
    });  
}  
  
//发送请求  
function sendRequest() {  
    var param = dtree.getNowParam(imageTypesTree);  
    if (JSON.stringify(param) == "{}") {  
        layer.alert('请选择档案类别');  
        return;  
    }  
    var dalb = param.nodeId;  
    var jhid = $('#jhid').val();  
    var yjjlid = $('#yjjlid').val();  
    var dassfl = $('#dassfl').val();  
    var files = document.getElementById("file").files;  
    while (uploadFiles.length > 0) {  
        var blob = uploadFiles[0];  
        var start = 0;  
        var end;  
        var index = 0;  
        var guid = newGuid();  
        console.log(guid);  
        // 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;  
            }  
            if (uploadFile(blob, index, start, end, guid, jhid, yjjlid, dassfl, dalb) < 0) {  
                break;  
            }  
            start = end;  
            index++;  
            if (index >= totalSlices) {  
                $("#uploadProgress").css('display', 'none');  
            }  
        }  
        uploadFiles.splice(0, 1);  
    }  
}  
  
//上传文件  
function uploadFile(blob, index, start, end, guid, jhid, yjjlid, dassfl, dalb) {  
    var formData;  
    var chunk;  
    var sliceIndex = blob.name + index;  
    chunk = blob.slice(start, end);//切割文件  
    formData = new FormData();  
    formData.append("FileName", chunk, sliceIndex);  
    formData.append("filename", blob.name);  
    formData.append("chunk", index);  
    formData.append("sliceIndex", sliceIndex);  
    formData.append("chunks", totalSlices);  
    formData.append('jhid', jhid);  
    formData.append('dassfl', dassfl);  
    formData.append('dalb', dalb);  
    formData.append('yjjlid', yjjlid);  
    formData.append('guid', guid);  
    $.ajax({  
        url: '../Controller/ImageService.ashx?func=uploadimage',  
        type: "POST",  
        data: formData,  
        processData: false,  
        contentType: false,// 不设置内容类型  
        success: function (data) {  
            var result = JSON.parse(data);  
            var currentChunk = parseInt(data.Msg);  
            if (result.IsSuccess == "0") {  
                var percent = parseInt((currentChunk / totalSlices) * 100);  
                $("#uploadProgress").css('display', 'block').attr('lay-percent', percent.toFixed() + '%');  
                return 0;  
            } else if (result.IsSuccess == "1") {  
                layer.alert('上传完成');  
                return 1;  
            } else {  
                layer.alert('上传失败，原因为：' + result.Msg);  
                return -1;  
            }  
        },  
        error: function (XMLHttpRequest, textStatus, errorThrown) {  
            alert(XMLHttpRequest.responseText);  
        }  
    });  
}  
  
function newGuid() {  
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {  
        var r = Math.random() * 16 | 0, v = c == 'x' ? r : (r & 0x3 | 0x8);  
        return v.toString(16);  
    });  
}

一般处理程序

#region 上传影像文件  
        /// <summary>  
        /// 上传影像  
        /// </summary>  
        /// <param name="context"></param>  
        public void UploadImage(HttpContext context)  
        {  
            string jhid = string.Empty;//计划ID  
            string dassfl = string.Empty;//档案所属分类  
            string yjjlid = string.Empty;//移交记录ID  
            string dalb = string.Empty;//档案类别  
            string rwjd = string.Empty;//任务阶段  
            HttpFileCollection files = context.Request.Files; ;//要检查的文件列表  
            string result = string.Empty;  
            if (!context.Request.Params.AllKeys.Contains("jhid"))  
            {  
                result += "计划ID不能为空；";  
            }  
            if (!context.Request.Params.AllKeys.Contains("dassfl"))  
            {  
                result += "所属分类不能为空；";  
            }  
            if (!context.Request.Params.AllKeys.Contains("dalb"))  
            {  
                result += "附件类别不能为空；";  
            }  
            jhid = context.Request.Params["jhid"];  
            dassfl = ConvertDassfl2Lower(context.Request.Params["dassfl"]);  
            dalb = context.Request.Params["dalb"];  
            if (context.Request.Params.AllKeys.Contains("yjjlid"))  
            {  
                yjjlid = context.Request.Params["yjjlid"];  
            }  
            if (context.Request.Params.AllKeys.Contains("rwjd"))  
            {  
                rwjd = context.Request.Params["rwjd"];  
            }  
            if (context.Request.Form.AllKeys.Contains("chunk"))  
            {  
                //取得chunk和chunks  
                int chunk = Convert.ToInt32(context.Request.Form["chunk"]);//当前分片在上传分片中的顺序（从0开始）  
                int chunks = Convert.ToInt32(context.Request.Form["chunks"]);//总分片数  
                string fileName = context.Request.Form["filename"];//文件实际名称  
                string guid = context.Request.Form["guid"]; ;  
                //根据GUID创建用该GUID命名的临时文件夹  
                string folder = fileSavePath + "\\" + guid + "\\"; 
                string path = folder + chunk; 
                //建立临时传输文件夹 
                if (!Directory.Exists(Path.GetDirectoryName(folder))) 
                { 
                    Directory.CreateDirectory(folder); 
                } 
                FileStream addFile = new FileStream(path, FileMode.Append, FileAccess.Write); 
                BinaryWriter AddWriter = new BinaryWriter(addFile); 
                //获得上传的分片数据流 
                HttpPostedFile file = context.Request.Files[0]; 
                Stream stream = file.InputStream; 
                BinaryReader TempReader = new BinaryReader(stream); 
                //将上传的分片追加到临时文件末尾 
                AddWriter.Write(TempReader.ReadBytes((int)stream.Length)); 
                //关闭BinaryReader文件阅读器 
                TempReader.Close(); 
                stream.Close(); 
                AddWriter.Close(); 
                addFile.Close(); 
                TempReader.Dispose(); 
                stream.Dispose(); 
                AddWriter.Dispose(); 
                addFile.Dispose(); 
                //合并文件 
                ProcessRequestFiles(guid, fileName, chunks, jhid, dassfl, yjjlid, dalb, rwjd); 
            } 
            else 
            { 
 
                if (files.Count <= 0) 
                { 
                    result += "文件信息不能为空；"; 
                } 
                if (!string.IsNullOrEmpty(result)) 
                { 
                    ResponseInfo responseInfo = new ResponseInfo 
                    { 
                        IsSuccess = "-1", 
                        Msg = result.TrimEnd('；'), 
                        Data = ""  
                    };  
                    context.Response.Write(JsonConvert.SerializeObject(responseInfo));  
                }  
                else//执行判断  
                {  
                    ResponseInfo responseInfo = new ResponseInfo();  
                    string msg = string.Empty;  
                    responseInfo.IsSuccess = ImageServiceCore.CreateInstance().UploadImage(jhid, dassfl, yjjlid, dalb, files, out msg);  
                    responseInfo.Msg = msg;  
                    context.Response.Write(JsonConvert.SerializeObject(responseInfo));  
                }  
            }  
        }  
        #endregion  
private void ProcessRequestFiles(string guid, string fileName, int chunks, string jhid, string dassfl, string yjjlid, string dalb, string rwjd)  
        {  
            HttpContext context = System.Web.HttpContext.Current;  
            context.Response.ContentType = "text/plain";  
            string sourcePath = fileSavePath + "\\" + guid + "\\";//源数据文件夹 
            string targetPath = fileSavePath + "\\" + guid + "\\" + fileName;//合并后的文件 
            DirectoryInfo dicInfo = new DirectoryInfo(sourcePath); 
            ResponseInfo responseInfo = new ResponseInfo(); 
            try 
            { 
                if (Directory.Exists(sourcePath)) 
                { 
                    FileInfo[] files = dicInfo.GetFiles(); 
                    if (files.Length != chunks) 
                    { 
                        responseInfo = new ResponseInfo 
                        { 
                            IsSuccess = "0", 
                            Msg = "", 
                            Data = "" 
                        }; 
                        context.Response.Write(JsonConvert.SerializeObject(responseInfo)); 
                        return; 
                    } 
                    foreach (FileInfo file in files.OrderBy(f => int.Parse(f.Name))) 
                    { 
                        FileStream addFile = new FileStream(targetPath, FileMode.Append); 
                        BinaryWriter AddWriter = new BinaryWriter(addFile); 
                        //获得上传的分片数据流 
                        Stream stream = file.Open(FileMode.Open); 
                        BinaryReader TempReader = new BinaryReader(stream); 
                        //将上传的分片追加到临时文件末尾 
                        AddWriter.Write(TempReader.ReadBytes((int)stream.Length)); 
                        //关闭BinaryReader文件阅读器 
                        TempReader.Close(); 
                        stream.Close(); 
                        AddWriter.Close(); 
                        addFile.Close(); 
                        TempReader.Dispose(); 
                        stream.Dispose(); 
                        AddWriter.Dispose(); 
                        addFile.Dispose(); 
                    } 
                    using (FileStream fileStream = new FileStream(targetPath, FileMode.Open)) 
                    { 
                        string msg = string.Empty; 
                        responseInfo.IsSuccess = ImageServiceCore.CreateInstance().UploadImage(jhid, dassfl, yjjlid, dalb, fileStream, fileName, rwjd, out msg); 
                        responseInfo.Msg = msg; 
                        responseInfo.Data = chunks.ToString(); 
                    } 
                    //删除文件夹 
                    string delPath = fileSavePath + "\\" + guid; 
                    if (Directory.Exists(delPath)) 
                    { 
                        Directory.Delete(delPath, true); 
                    } 
                    context.Response.Write(JsonConvert.SerializeObject(responseInfo)); 
                } 
                else 
                { 
                    responseInfo = new ResponseInfo 
                    { 
                        IsSuccess = "-1", 
                        Msg = "获取存储目录失败", 
                        Data = "" 
                    }; 
                    context.Response.Write(JsonConvert.SerializeObject(responseInfo)); 
                } 
            } 
            catch (Exception ex) 
            { 
                responseInfo = new ResponseInfo 
                { 
                    IsSuccess = "-1", 
                    Msg = ex.Message, 
                    Data = ""  
                };  
                context.Response.Write(JsonConvert.SerializeObject(responseInfo));  
            }  
        }

结束。

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本文链接： https://www.xiangcaowuyu.net/java/dotnet-and-ajax-for-block-upload.html
作品采用： 《 署名-非商业性使用-相同方式共享 4.0 国际 (CC BY-NC-SA 4.0) 》许可协议授权

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  1. 头像
    Laughing 作者
    Windows 10 · Google Chrome
    @ 程涛

    11.26号过期，请参考https://www.xiangcaowuyu.net/devtools/20202-intellij-idea-activation-expired-on-november-26-resolved.html

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  2. 头像
    啊啊啊
    MacOS · Safari

    谢谢哦

    回复