FormData对象发送文件

function sendForm(){

var oOutput = documeNT.getElemeNTById(“output”);

var oData = new FormData(documeNT.forms.namedItem(“fileinfo”));

oData.append(“CustomField”, “this is some extra data”);

var oReq = new XMLHttpRequest();

oReq.open(“poSt”, “stash.php”, true);

oReq.onload = function(oEveNT) {

if (oReq.status == 200) {

oOutput.innerHtML = “Uploaded ! ”;

}else{oOutput.innerHtML = “Error“ + oReq.status + “occurred uploading your file.”;}};

oReq.send(oData);

}

var fd = new FormData(documeNT.getElemeNTById(“fileinfo”));

fd.append(“CustomField”, “this is some extra data”);

$.ajax({

url: “stash.php”,

type: “poSt”,

data: fd,

ProCessData: false,

// 告诉jQuery不要去处理发送的数据  

coNTeNTtype: false  

// 告诉jQuery不要去设置CoNTeNT-type请求头});

（编辑：李大同）

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