简单实现限制uploadify上传个数

简单实现限制uploadify上传个数


function deleteUrl(){
$("body").on("click",".img-wrap .mask span",function(event){
event.stopPropagation();

var qs=$('#file_upload-queue>div');//所有的队列
var id=qs.eq(2).attr('id');//得到第三个队列的id
$('#uploadTowedAccredit').uploadify('cancel',id);//这样就行了，会自动重置队列数量和删除dom对象，不能直接qs.eq(2).remove()，无效

/*
if(!window.confirm("您确定删除附件？")){
return;
}
var imgUrl=$(this).parents(".img-wrap").find("img").attr("src");
deleteImage(imgUrl);
$(this).parents(".img-wrap").remove();
*/
});
};





<li class="blockli clearfix" style="padding-bottom: 5px;">
<span class="left-name"><em class="red-star">*</em>拖机授权委托书：</span>
<div class="upload-wrap" style="width:100px;">
<input type="file" name="uploadTowedAccredit" id="uploadTowedAccredit" class="filetext"/>
</div>
<span id="uploadTowedAccreditLinkTip" class="warn-tips"><em></em>请上传附件，最多上传${towedAccreditPicMax} 张</span>
<div id="towedAccreditDiv" class="up-img-list clearfix"></div>
</li>



// 上传拖机授权委托书
function uploadTowedAccreditInit(){
$("#uploadTowedAccredit").uploadify({
'hideButton':'true',
'preventCaching' : 'true',
'checkExisting':'true',
'swf': SWF,
'uploader':uploadImg,
'debug':false,
'multi': true,
'method': 'post',
'preventCaching' : true,
'removeCompleted' : true,
'removeTimeout' : 10,
'requeueErrors' : true,
'successTimeout' : 30,
'uploadLimit' : ${towedAccreditPicMax},

'fileObjName' : 'Filedata',
//单张图片最大限制
'fileSizeLimit' : '1024KB',
'fileTypeDesc' : 'Image Files',
//仅限上传jpg格式图片
'fileTypeExts' : '*.jpg;*.png',
'height': 24,
'width':73,
'buttonText' : '上传附件',
'auto': true,
'buttonClass':'uploada btn-fff-24',

'onSWFReady' : function() {
},

'onInit':function(){
// $("#file_upload-button").css("width","100");
},

//选择图片完成
'onSelect' : function() {

},

//取消上传
'onCancel' : function(file) {
},
'onCheck': function(event,data,key) {
},
//开始上传
'onUploadStart' : function(file) {
$('.uploadify-queue').html('');
},

//上传过程中
'onUploadProgress' : function(file, bytesUploaded, bytesTotal, totalBytesUploaded, totalBytesTotal) {
$('.uploadify-queue').html('');
$("#uploadTowedAccreditLinkTip").html('<em></em>上传中...');
},

//上传完成
'onUploadComplete' : function(file) {
$('.uploadify-queue').html('');
$("#uploadTowedAccreditLinkTip").html('<em></em>上传成功，待提交');
},

//上传成功
'onUploadSuccess' : function(file, data, response) {
var obj = eval('(' + data + ')');
var result=obj.result;
if(result=="true"){
var filename=obj.filename;
$('.uploadify-queue').html('');
$('#towedAccreditDiv').append("<div class='img-wrap'><img width='112' height='84' alt='' src='"+filename+"'><div class='mask'><em></em><span></span></div></div>");
}
},

//上传失败 //附件格式不正确，请上传JPG、BMP、PNG格式文件，大小不超过3MB
'onUploadError' : function(file, errorCode, errorMsg, errorString) {
switch(errorCode) {
case -100:
alert("上传的文件数量已经超出系统限制的"+$('#uploadTowedAccredit').uploadify('settings','queueSizeLimit')+"个文件！");
break;
case -110:
alert("文件 ["+file.name+"] 大小超出系统限制的"+$('#uploadTowedAccredit').uploadify('settings','fileSizeLimit')+"大小！");
break;
case -120:
alert("文件 ["+file.name+"] 大小异常！");
break;
case -130:
alert("文件 ["+file.name+"] 类型不正确！");
break;
}
},
//上传失败 //附件格式不正确，请上传JPG、BMP、PNG格式文件，大小不超过3MB
'onSelectError' : function(file, errorCode, errorMsg) {
var msgText = "上传失败
";
switch (errorCode) {
case SWFUpload.QUEUE_ERROR.QUEUE_LIMIT_EXCEEDED:
var towedAccreditDivLen = $("#towedAccreditDiv").children().length;
msgText += "每次最多上传 " + $('#uploadTowedAccredit').uploadify('settings','uploadLimit') + "个文件";
break;
case SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT:
msgText += "文件大小超过限制( " + $('#uploadTowedAccredit').uploadify('settings','fileSizeLimit') + " )";
break;
case SWFUpload.QUEUE_ERROR.ZERO_BYTE_FILE:
msgText += "文件大小为0";
break;
case SWFUpload.QUEUE_ERROR.INVALID_FILETYPE:
msgText += "文件格式不正确，仅限 " + $('#uploadTowedAccredit').uploadify('settings','fileTypeExts');
break;
default:
msgText += "错误代码：" + errorCode + "
" + errorMsg;
}
alert(msgText);
}
});

//判断用户是否有安装flash
var obj = $("#uploadTowedAccredit").children().eq(0);
if(obj.attr('type')!= "application/x-shockwave-flash"){
alert('系统检测到您的浏览器没有安装flash插件，为了你能够正常上传图片，建议你安装flash');
return;
}

$("#uploadTowedAccredit").css("float","left");
};


另外给大家附上jquery+uploadify多文件上传


<html xmlns=”http://www.w3.org/1999/xhtml”>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=UTF-8″ />
<title>php jquery uploadify多文件上传</title>
<link href=”css/default.css” rel=”stylesheet” type=”text/css” />
<link href=”css/uploadify.css” rel=”stylesheet” type=”text/css” />
<script type=”text/javascript” src=”js/jquery-1.3.2.min.js”></script>
<script type=”text/javascript” src=”js/swfobject.js”></script>
<script type=”text/javascript” src=”js/jquery.uploadify.v2.1.0.min.js”></script>
<script type=”text/javascript”>
$(document).ready(function() {
$(“#fileInput2″).uploadify({
‘uploader': ‘js/uploadify.swf',//所需要的flash文件
‘cancelImg': ‘cancel.png',//单个取消上传的图片
'script': ‘js/uploadify.php',//实现上传的程序
‘folder': ‘uploads',//服务端的上传目录
//'auto': true,//自动上传
‘multi': true,//是否多文件上传
//'checkScript': ‘js/check.php',//验证 ，服务端的
‘displayData': 'speed',//进度条的显示方式
//'fileDesc': ‘Image(*.jpg;*.gif;*.png)',//对话框的文件类型描述
//'fileExt': ‘*.jpg;*.jpeg;*.gif;*.png',//可上传的文件类型
//'sizeLimit': 999999 ,//限制上传文件的大小
//'simUploadLimit' :3, //并发上传数据
//'queueSizeLimit' :5, //可上传的文件个数
//'buttonText' :'文件上传',//通过文字替换钮扣上的文字
‘buttonImg': ‘css/images/browseBtn.png',//替换上传钮扣
‘width': 80,//buttonImg的大小
‘height': 24,//
‘rollover': true,//button是否变换
onComplete: function (evt, queueID, fileObj, response, data) {
//alert(“Successfully uploaded: “+fileObj.filePath);
//alert(response);
getResult(response);//获得上传的文件路径
}
//onError: function(errorObj) {
// alert(errorObj.info+” “+errorObj.type);
//}
});
});
</script>
<script type=”text/javascript”>
function getResult(content){
//通过上传的图片来动态生成text来保存路径
var board = document.getElementById(“divTxt”);
board.style.display=””;
var newInput = document.createElement(“input”);
newInput.type = “text”;
newInput.size = “45″;
newInput.name=”myFilePath[]“;
var obj = board.appendChild(newInput);
var br= document.createElement(“br”);
board.appendChild(br);
obj.value=content;
}
</script>
</head>
<body>
<fieldset style=”border: 1px solid #CDCDCD; padding: 8px; padding-bottom:0px; margin: 8px 0″>
<legend> <strong> 多文件上传</strong></legend>
<div>
<input id=”fileInput2″ name=”fileInput2″ type=”file” />
<input type=”button” value=”确定上传” onclick=”javascript:$(‘#fileInput2′).uploadifyUpload();”>  
||  <a href=”javascript:$(‘#fileInput2′).uploadifyClearQueue();”>清除上传列表</a></div>
<p></p>
</fieldset>
<FORM name=”form2″ METHOD=POST ACTION=”db.php”>
<div id=”divTxt” style=”display:none”><span style=”color:red”><strong>已经上传的图片有：</strong></span& gt;<br></div><br>
<INPUT TYPE=”submit” value=”提 交”>
</FORM>
</body>
</html>




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