怎么样获得文件上传进度。

[离子漂浮物]

怎么样才能获取文件上传接收进度呢？不需要实现什么大文件上传功能，只要知道上传进度而以。谁能给点资料信息。

[zzxap]

在web上传中，实现进度条是间很COOL的事情，但是很多时候，为了实现进度条我们需要做的工作量会很大，现在采用FLASH可以很方便的使用，但是您想过通过JQUERY来实现吗？
 
Js代码如下
jQuery.extend({   
  
    createUploadIframe: function(id, uri){   
  
            var frameId = 'CrazyCoder_CN' + id;   
               
            if(window.ActiveXObject) {   
                var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');   
  
                if(typeof uri== 'boolean'){   
                    io.src = 'javascript:false';   
                }   
                else if(typeof uri== 'string'){   
                    io.src = uri;   
                }   
            }   
            else {   
                var io = document.createElement('iframe');   
                io.id = frameId;   
                io.name = frameId;   
            }   
  
            io.style.position = 'absolute';   
            io.style.top = '-1000px';   
            io.style.left = '-1000px';   
  
            document.body.appendChild(io);   
  
            return io   
  
    },   
  
    ajaxUpload: function(s) {   
        // 初始化
        s = jQuery.extend({}, jQuery.ajaxSettings, s);   
           
        var id = new Date().getTime()   
        io = jQuery.createUploadIframe(id, s.secureuri)   
  
        // Watch for a new set of requests   
        if ( s.global && ! jQuery.active++ )   
            jQuery.event.trigger( "ajaxStart" );   
  
        var requestDone = false;   
  
        // Create the request object   
        var xml = {}      
        if ( s.global )   
            jQuery.event.trigger("ajaxSend", [xml, s]);   
  
        // Wait for a response to come back   
        var uploadCallback = function(isTimeout){   
            try {   
                xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null;   
                xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document;   
            }   
            catch(e){}   
            if ( xml || isTimeout == "timeout") {   
                requestDone = true;   
                var status;   
                try {   
                    status = isTimeout != "timeout" ? "success" : "error";   
                    // Make sure that the request was successful or notmodified   
                    if ( status != "error" ) {   
                        // process the data (runs the xml through httpData regardless of callback)   
                        var data = jQuery.uploadHttpData( xml, s.dataType );   
       
                        // If a local callback was specified, fire it and pass it the data   
                        if ( s.success )   
                            s.success( data, status );   
       
                        // Fire the global callback   
                        if( s.global )   
                            jQuery.event.trigger( "ajaxSuccess", [xml, s] );   
                    } else  
                        jQuery.handleError(s, xml, status);   
                } catch(e) {   
                    status = "error";   
                    jQuery.handleError(s, xml, status, e);   
                }   
  
                // The request was completed   
                if( s.global )   
                    jQuery.event.trigger( "ajaxComplete", [xml, s] );   
  
                // Handle the global AJAX counter   
                if ( s.global && ! --jQuery.active )   
                    jQuery.event.trigger( "ajaxStop" );   
  
                // Process result   
                if ( s.complete )   
                    s.complete(xml, status);   
  
                // jQuery(io).unbind()   
  
                // setTimeout(function(){ document.body.removeChild(io); }, 100)   
  
                xml = null  
  
            }   
        }   
        // Timeout checker   
        if ( s.timeout > 0 ) {   
            setTimeout(function(){   
                // Check to see if the request is still happening   
                if( !requestDone ) uploadCallback( "timeout" );   
            }, s.timeout);   
        }   
        try {   
            var frameId = 'jQuery' + id;   
            var io = document.getElementById(frameId);   
            // Initialize the HTML form properties in case they are   
            // not defined in the HTML form.   
            s.uploadform.action = s.url;   
            s.uploadform.method = 'POST';   
            s.uploadform.target = frameId;   
  
            // Add extra data that may have been already passed.   
            if (s.data) {   
                var oEls = s.data.split('&');   
                for (var i=0; i < oEls.length; i++ ){   
                    var thisEl = oEls[i].split('=');   
                    var thisFormEl = document.createElement('input');   
                    thisFormEl.type = 'hidden';   
                    thisFormEl.name = thisEl[0];   
                    thisFormEl.value = thisEl[1];   
                    s.uploadform.appendChild(thisFormEl);   
                }   
                   
            }   
  
  
            if(s.uploadform.encoding){   
                // IE does not respect property enctype for HTML forms.   
                // Instead use property encoding.   
                s.uploadform.encoding = 'multipart/form-data';   
            }   
            else{   
                s.uploadform.enctype = 'multipart/form-data';   
            }   
  
            s.uploadform.submit();   
  
        } catch(e) {   
            jQuery.handleError(s, xml, null, e);   
        }   
  
        if(window.attachEvent){   
            io.attachEvent('onload', uploadCallback);   
        }   
        else{   
            io.addEventListener('load', uploadCallback, false);   
        }          
           
        return {abort: function () {}};   
  
    },   
  
    uploadHttpData: function( r, type ) {   
        var data = !type;   
        data = type == "xml" || data ? r.responseXML : r.responseText;   
        // If the type is "script", eval it in global context   
        if ( type == "script" )   
            jQuery.globalEval( data );   
  
        // Get the JavaScript object, if JSON is used.   
        if ( type == "json" )   
            eval( "data = " + data );   
  
        // evaluate scripts within html   
        if ( type == "html" )   
            jQuery("<div>").html(data).evalScripts();   
  
        return data;   
    }   
})   
  
Ext.lib.Ajax.formRequest = function(form, uri, cb, data, isUpload, sslUri){   
    var createComplete = function(cb){   
         return function(xhr, status){   
            if((status == 'error' || status == 'timeout') && cb.failure){   
                cb.failure.call(cb.scope||window, {   
                    responseText: xhr.responseText,   
                    responseXML : xhr.responseXML,   
                    argument: cb.argument   
                });   
            }else if(cb.success){   
                cb.success.call(cb.scope||window, {   
                    responseText: xhr.responseText,   
                    responseXML : xhr.responseXML,   
                    argument: cb.argument   
                });   
            }   
         };   
    };   
  
            if (isUpload) {   
                jQuery.ajaxUpload({   
                    uploadform: form,   
                    data: data,   
                    url: uri,   
                    secureuri: sslUri,   
                    complete: createComplete(cb)   
                });   
            } else {   
                jQuery.ajax({   
                    type: Ext.getDom(form).method ||'POST',   
                    url: uri,   
                    data: jQuery(form).formSerialize()+(data?'&'+data:''),   
                    timeout: cb.timeout,   
                    complete: createComplete(cb)   
                });   
            }   
        };  

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[zzxap]

你可以在程序中，每到一个位置就设置一下进度条的长度。

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[zzxap]

http://download.csdn.net/source/732308

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[wuyq11]

参考
看看jquery进度条插件

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[CPPACE]

.netajax控件

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[离子漂浮物]

谢谢楼上的回答，但是我问的不是怎么作进度条，我问的是怎么获得上传进度。

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[jilezhenren]

帮顶

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[liherun]

上传文件的时候把文件的大小传过去，然后计算

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[智者知已应修善业]

^:^

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[qqzeng-ip]

Progress progress = HttpUploadModule.GetProgress(upid, this.Application); 
 string scriptText = ""; 
  if (progress != null) 
   { 
       if (progress.State == UploadState.ReceivingData) 
        { string length = (progress.ContentLength / 1024).ToString(); 
           string read = (progress.BytesRead / 1024).ToString(); 
          scriptText = String.Format("{0}:{1}", length, read); 
                } 
                else if (progress.State == UploadState.Complete) 
                { 
                    scriptText = "完成"; 
                } 
                else 
                { 
                   scriptText = "出错"; 
                } 
            } 
            return scriptText; 
        } 

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[woshifou]

用SWFUpload

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[tjtimes]

帮顶，学习~

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