本来想用插件上传图片的,后来自己写了一个简单的js实现异步的图片上传,不多说上代码非常简单
upload.php
<>
if(isset($_FILES["myfile"]))?>
<script type="text/javascript">
var xhr;
function createXMLHttpRequest()
{
if(window.ActiveXObject)
{
xhr = new ActiveXObject("Microsoft.XMLHTTP");
}
else if(window.XMLHttpRequest)
{
xhr = new XMLHttpRequest();
}
}
function UpladFile()
{
var fileObj = document.getElementById("file").files[0];
var FileController = 'upload.php';
var form = new FormData();
form.append("myfile", fileObj);
createXMLHttpRequest();
xhr.onreadystatechange = handleStateChange;
xhr.open("post", FileController, true);
xhr.send(form);
}
function handleStateChange()
{
if(xhr.readyState == 4)
{
if (xhr.status == 200 || xhr.status == 0)
{
var result = xhr.responseText;
var json = eval("(" + result + ")");
alert('图片链接:\n'+json.file);
}
}
}
</script>
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