文件上传
HTML部分:
<input type="file" id="id-input-file-3">
XMLHttpRequest Level 2添加了一个新的接口FormData,用来上传文件很好用。
JavaScript部分:(使用jquery)
var file = jQuery('#fileid').get(0).files[0]; // 得到文件 var formData = new FormData(); // 新建一个FormData对象 formData.append('file', file); // formData.append('uid', 123); // 向FormData对象添加字段 $.ajax({ url:'/admin/ajax/fileuploadTmp', type:'POST', data: formData, success: function(data, status) { console.log(data); }, processData: false, // tell jQuery not to process the data contentType: false // tell jQuery not to set contentType });
如果不用jquery:
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.<br \/>";
}
};
oReq.send(oData);
参考资料:
FormData - Web API 接口| MDN
使用FormData对象- Web 开发者指南| MDN