如何通过jQuery发布/序列化“输入文件”？

Question

我有两种形式.post到url进行处理，但是我.post不处理输入文件。

我尝试.serialize和.ajax都没有成功

我的两种形式：

 <form name="PbxForm" id="PbxForm" action="index.php?mod=add_queues_details" method="post" enctype="multipart/form-data" class="myForms" >
 ...
 <input type="file" class="" id="periodic_announce" name="periodic_announce" value="" style="width:100%">
 ....

 <form action="index.php?mod=add_queues_details" method="post" name="PbxForm1" id="PbxForm1" class="myForms">
 ....
 <select class="button" name="destination" id="destination"  tabindex="2" data-id="0" style="width: 100%" required>
           <option value="">== choose one ==</option>
           <option value="extensions">Extensions</option>
           <option value="queues">Queues</option>
           <option value="operator">Operator</option>
           <option value="forwarders">Forwarders</option>
        </select>
 ....

site.js

 $.post("index.php?mod=add_queues_details", $("#PbxForm, #PbxForm1").serialize(), function(){
       window.location.href = "index.php?mod=queues";
 });

我希望收到periodic_announce="test.wav"，destination="extensions"作为URL上的$_POST值，但其中不包含periodic_announce

编辑

我进行了如下更改：

var fileName;
$('input[type="file"]').change(function(e){
    fileName = e.target.files[0].name;
//    alert('The file "' + fileName +  '" has been selected.');
});

$("#queuesubmit").click(function() {
    var file_data = $('#periodic_announce').prop('files')[0];
    var form_data = new FormData();
    form_data.append('periodic_announce', file_data);
    $.ajax({
        url: 'modules/queues/queues_exec.php', // point to server-side PHP script
        dataType: 'text',  // what to expect back from the PHP script, if anything
        cache: false,
        contentType: false,
        processData: false,
        data: form_data,
        type: 'post',
        success: function(php_script_response){
            alert(php_script_response); // display response from the PHP script, if any
        }
});

$.post("index.php?mod=add_queues_details", $("#PbxForm, #PbxForm1").serialize() + '&periodic_announce=' + fileName, function(){
       window.location.href = "index.php?mod=queues";
    });
});