js获取文件上传进度：
<input name="file" id="FileUpload" type="file" />
<input type="button" onclick="Submit()" value="提交" />
js监听：
var xhrOnProgress=function(fun) {
xhrOnProgress.onprogress = fun; //绑定监听
//使用闭包实现监听绑
return function() {
//通过$.ajaxSettings.xhr();获得XMLHttpRequest对象
var xhr = $.ajaxSettings.xhr();
//判断监听函数是否为函数
if (typeof xhrOnProgress.onprogress !== 'function')
return xhr;
//如果有监听函数并且xhr对象支持绑定时就把监听函数绑定上去
if (xhrOnProgress.onprogress && xhr.upload) {
xhr.upload.onprogress = xhrOnProgress.onprogress;
}
return xhr;
}
}
ajax文件上传函数：
function Submit(){
var fileObj = document.getElementById("FileUpload").files[0]; // js 获取文件对象
var formFile = new FormData();
formFile.append("file", fileObj); //加入文件对象
var data = formFile;
$.ajax({
url: url,
data: data,
type: "Post",
dataType: "json",
cache: false,//上传文件无需缓存
processData: false,//用于对data参数进行序列化处理 这里必须false
contentType: false, //必须
xhr:xhrOnProgress(function(e){
var percent=e.loaded/e.total;//文件上传百分比
console.log(percent);
}),
success: function (result) {
console.log(result);
},
})
}
完整代码:
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
</head>
<body> <input name="file" id="FileUpload" type="file" /> <input type="button" onclick="Submit()" value="提交" /> </body>
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<script type="text/javascript">
var xhrOnProgress=function(fun) {
xhrOnProgress.onprogress = fun; //绑定监听
//使用闭包实现监听绑
return function() {
//通过$.ajaxSettings.xhr();获得XMLHttpRequest对象
var xhr = $.ajaxSettings.xhr();
//判断监听函数是否为函数
if (typeof xhrOnProgress.onprogress !== 'function')
return xhr;
//如果有监听函数并且xhr对象支持绑定时就把监听函数绑定上去
if (xhrOnProgress.onprogress && xhr.upload) {
xhr.upload.onprogress = xhrOnProgress.onprogress;
}
return xhr;
}
} function Submit(){ var fileObj = document.getElementById("FileUpload").files[0]; // js 获取文件对象
var formFile = new FormData(); formFile.append("file", fileObj); //加入文件对象 var data = formFile;
$.ajax({
url: "http://up.qiniu.com/",
data: data,
type: "Post",
dataType: "json",
cache: false,//上传文件无需缓存
processData: false,//用于对data参数进行序列化处理 这里必须false
contentType: false, //必须
xhr:xhrOnProgress(function(e){
var percent=e.loaded/e.total;
console.log(percent);
}),
success: function (result) {
console.log(result);
},
})
} </script>
</html>