代码比较简单，原理更简单，不多言请直接看代码。
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
</head>
<body>
<script>
document.onpaste = function(event){
var items = (event.clipboardData || event.originalEvent.clipboardData).items;
for (var i = 0 ; i < items.length ; i++) {
var item = items[i];
if (item.type.indexOf("image") != -1) {
var file = item.getAsFile();
console.log(file);
upload_file_with_ajax(file);
}
}
}
function upload_file_with_ajax(file){
var formData = new FormData();
formData.append('file', file);
$.ajax('./clipboard_js.php' , {
type: 'POST',
contentType: false,
processData: false,
data: formData,
error: function() {
console.log("error");
},
success: function(res) {
console.log("ok");
}
});
}
</script>
</body>
</html>