js实现上传单个文件

js上传文件:js 上传单个文件(任意大小) 疯狂代码 http://www.CrazyCoder.cn/ :http:/www.CrazyCoder.cn/Javascript/Article8329.html

var xml_http,ado_stream; var SendBlockCount,SendCount; varl astSendTime,maxFileLimit; var breaked=false; var _filename; var blockSize=1024*128; var isUploaded=false;

maxFileLimit=1024*1024*50;//上传文件的大小

///处理文件开始上传 function BeginSend() { try { if(document.getElementById(\"UpFileControl\")&&document.getElementById(\"UpFileControl\").value.length>0) { document.getElementById(\"speed\").innerHTML=\"0KB/Sec\";//进度条 document.getElementById(\"perent\").innerHTML=\"0%\"; document.getElementById(\"perentBar\").style.width=\"0%\"; document.getElementById(\"bar\").style.display=\"block\"; //document.getElementById(\"control\").style.display=\"block\"; document.getElementById(\"divImportData\").style.display=\"block\"; _filename=document.getElementById(\"UpFileControl\").value; document.getElementById(\"filename\").innerHTML=\"正在上传文件:\"+_filename.substring(_filename.lastIndexOf(\"\\\\\")+1,_filename.length);

SendFile(); } elseif(document.getElementById(\"UpFileControl\").value==\"\") { alert(\"请先选择要上传的文件\"); window.parent.AllowFunc(); [Page] document.getElementById(\"btnReset\").disabled=false; document.getElementById(\"btnUpload\").disabled=false; document.getElementById(\"UpFileControl\").disabled=false; Initialize(); return false; } else { return false; } } catch(ex) { alert(\"上传文件过程中出错,原因:\"+ex.description); //window.parent.AllowFunc(); document.getElementById(\"btnReset\").disabled=false; document.getElementById(\"btnUpload\").disabled=false; document.getElementById(\"UpFileControl\").disabled=false; Initialize(); return false; } }

///开始上传文件 function SendFile() { breaked=false; try { ado_stream=newActiveXObject(\"ADODB.Stream\"); ado_stream.Type=1; ado_stream.Open(); } catch(ex) { window.parent.AllowFunc();

转载于:https://www.cnblogs.com/meihao1989/p/3699307.html

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