百度webuploader上傳 1

百度webupload網址：http://fex.baidu.com/webuploader/

引入js和css

<script src="../../Content/webuploader.js"></script>
<link href="../../Content/webuploader.css" rel="stylesheet" />

頁面html代碼

<div id="uploader" class="wu-example">
<!--用來存放文件信息-->
<div id="thelist" class="uploader-list"></div>
<div class="btns">
<div id="picker">選擇文件</div>
<button id="ctlBtn" class="btn btn-default">開始上傳</button>
</div>
</div>

初始化webupload.js

<script type="text/javascript">
// 文件上傳
jQuery(function () {
var $ = jQuery,
$list = $('#thelist'),
$btn = $('#ctlBtn'),
state = 'pending',
uploader;

uploader = WebUploader.create({

// 不壓縮image
resize: false,

// swf文件路徑
swf: '/content/Uploader.swf',

// 文件接收服務端。
server: '/Webupload/Process',   （這是在後臺寫的接收前臺傳送的文件方法）

// 選擇文件的按鈕。可選。
// 內部根據當前運行是建立，多是input元素，也多是flash.

pick: '#picker',
chunked :true,
chunkSize: 5242880,（分佈上傳 一次5mb）

 threads :1(這個是關鍵  若是不限制同時上傳的數目 會致使後臺接受的分片錯亂  好比按正常的分片第一片應該是開頭 但接收的可能就變成第三片從而順序錯亂  這是因爲百度webuploader默認容許同時最大上傳進程數爲3個  因此會致使接受順序錯亂從而重組發生錯誤)

});

// 當有文件添加進來的時候
uploader.on('fileQueued', function (file) {
$list.append('<div id="' + file.id + '" class="item">' +
'<div class="info">' + file.name + '</div>' +
'<div class="state">等待上傳...</div>' +
'<div class="download" style="display:none;"></div>' +
'<div class="del"></div>' +
'</div>');
});
uploader.on('uploadProgress', function (file, percentage) {
var $li = $('#' + file.id),
$percent = $li.find('.progress .bar');

// 避免重複建立
if (!$percent.length) {
$percent = $('<span class="progress">' +
'<span class="percentage"><span class="text"></span>' +
'<span class="bar" role="progressbar" style="width: 0%">' +
'</span></span>' +
'</span>').appendTo($li).find('.bar');
}

$li.find('div.state').text('上傳中');
$li.find("span.text").text(Math.round(percentage * 100) + '%');//顯示上傳進度
$percent.css('width', percentage * 100 + '%');
});

uploader.on('uploadSuccess', function (file) {
$('#' + file.id).find('div.state').text('已上傳');
});

uploader.on('uploadError', function (file) {
$('#' + file.id).find('div.state').text('上傳出錯');
});

 

uploader.on('uploadComplete', function (file) {
$('#' + file.id).find('.progress').fadeOut();
});

uploader.on('all', function (type) {
if (type === 'startUpload') {
state = 'uploading';
} else if (type === 'stopUpload') {
state = 'paused';
} else if (type === 'uploadFinished') {
state = 'done';
}

if (state === 'uploading') {
$btn.text('暫停上傳');
} else {
$btn.text('開始上傳');
}
});

$btn.on('click', function () {
if (state === 'uploading') {
uploader.stop(true);//不加ture暫停上傳沒用！
} else {
uploader.upload();
}
});
});

</script>

後臺接收上傳的文件的代碼（接收接口） 內有上傳分佈接受

public class WebuploadController : Controller
{
//
// GET: /Webupload/

public WebuploadController()
{
var applicationPath = VirtualPathUtility.ToAbsolute("~") == "/" ? "" : VirtualPathUtility.ToAbsolute("~");
urlPath = "/PHP";
}

static string urlPath = string.Empty;
static string guid = Guid.NewGuid().ToString("N");
static int num = 1;
public ActionResult Process(string id, string name, string type, string lastModifiedDate, int size, HttpPostedFileBase file)
{
string filePathName = string.Empty;

string localPath = Path.Combine(HttpRuntime.AppDomainAppPath, "PHP");
if (Request.Files.Count == 0)
{
return Json(new { jsonrpc = 2.0, error = new { code = 102, message = "保存失敗" }, id = "id" });
}

string ex = Path.GetExtension(file.FileName);
filePathName = guid+"_"+num + ex;//分佈接受（創建每一個接受分段的名字）
num++;

if (!System.IO.Directory.Exists(localPath))
{
System.IO.Directory.CreateDirectory(localPath);
}
file.SaveAs(Path.Combine(localPath, filePathName));//寫入文件夾中

 

int total = size / 5242880;//判斷有多少個分塊
if(size%5242880>0)
{
total += 1;
}

//重組

if (num > total)
{
chongzu(total, ex, guid, localPath);
}

return Json(new
{
jsonrpc = "2.0",
id = "id",
filePath = urlPath + "/" + filePathName
});
}

//重組（分片數目，接受視頻類型，存儲視頻的名字，存放的地址）

public void chongzu(int total, string ex, string guid, string localPath)
{
try
{
string fileurl = Path.Combine(localPath, guid + ex);

var fs = new FileStream(fileurl, FileMode.Create);

for (int i = 1; i <= total; ++i)
{

string part = Path.Combine(localPath, guid + "_" + i + ex);

var bytes = System.IO.File.ReadAllBytes(part);

fs.Write(bytes, 0, bytes.Length);

bytes = null;

System.IO.File.Delete(part);

}
fs.Close();

filenameone = guid + ex;

}
catch (Exception e) { Response.Write("<script>alert('視頻重組失敗') </script>"); }
finally { num = 1; guid = Guid.NewGuid().ToString("N"); //爲了下個視頻重置num 和 guid }

}

}

對於上傳大的文件須要在配置文件中改iis配置

<system.web>

<httpRuntime maxRequestLength="999999999" />//用戶上傳文件最大致積
<compilation debug="true" targetFramework="4.0" />

</system.web>

 

<system.webServer>

<security>

<requestFiltering>
<requestLimits maxAllowedContentLength="3000000000" />
</requestFiltering>
</security>
</system.webServer>