如何使用jquery进行发布并捕获JSON中的回复

Question

I am using this code:

function save() {
    // submit the dataform
    $.post(document.dataform.action, 
        $("#dataform").serialize(),
        function(reply) {
           //handle reply here
    });
}

This sends the right data to the server, but it arrives in $_GET. When I alter the server code to match I get the expected reply. There is a part of the query on the dataform.action. which I expected to arrive in $_GET.

How can I actually get the POST to send the data from the form so it arrives in $_POST, and thus avoid the size restrictions on GET?

I'm testing with Firefox, JQuery 9, and PHP 5.4.3

Thanks, Ian

Answer 1

$_GET takes parameter from query string so to have $_POST and $_GET just do this:

var action       = document.dataform.action;
var get_variable = "var1=v1&var2=v2..."; 
action = action+"?"+get_variable;
$.post(action, 
        $("#dataform").serialize(),
        function(reply) {
           //handle reply here
    });

Answer 2

function save() {
    // submit the dataform
    $.post(document.dataform.action, 
        { data: $("#dataform").serializeArray() })
    .done(function(reply) {
           //handle reply here
    });
}

then json_decode($_POST['data']); in PHP

Answer 3

Cracked it! The correct method is

function save() {
    // submit the dataform
    $.ajax({
    url: document.dataform.action,
    data: new FormData(document.dataform),
    cache: false,
    contentType: false,
    processData: false,
    type: 'POST',
    success: function(reply){
        if (reply.action) fetch('/content.php',reply.action);
        if (reply.content) document.getElementById('content').innerHTML=reply.content;
        if (reply.menu) document.getElementById('menu').innerHTML=reply.menu;
        if (reply.status) document.getElementById('status').innerHTML=reply.status;
        calcSize();
        }
    });
}

This will however only work with browsers that support FormData - Chrome 7+, FF4.0+, IE 10+, Opera 12+ and Safari 5+
OK for my use-case ;) Thanks for everyone's input.