Ajax上传文件无效

Question

Html code :

<input type="file" id="file" />

jQuery code :

$.ajax({
        url: 'go.php',
        data: {file:$('#file').attr('files'),upload:name},
        cache: false,
        contentType: 'multipart/form-data',
        processData: false,
        type: 'POST',
        success: function(data){
            alert(data);
        },
        error: function(data){
            alert("error");
        }
    });

PHP code :

if(isset($_POST['file'])){
    echo "1";
}

After upload alert empty message !

But this code should error "1"

Answer 1

Uploading files direcley using ajax is not possible. but there are some workarounds using frames. try this tutorial:

http://net.tutsplus.com/tutorials/javascript-ajax/uploading-files-with-ajax/

Read this post cfr: jQuery Ajax File Upload