jquery ajax表单提交 [英] jquery ajax form submit

问题描述

这个代码正确吗?我正在尝试提交它，如果文本区域再次为空，我也希望提交.

Is this code correct? I'm trying to submit it and also I would like on submit if text area would be empty again.

<script type="text/javascript">
$(document).ready(function(){

    $("form#submit").submit(function() {
        // we want to store the values from the form input box, then send via ajax below
        var fid = $(".messag").attr("id");
        var val = $("#mess_ar").val();
        $.ajax({
            type: "POST",
            url: "send_message.php",
            data: "fid="+ fid +"&val="+ val,
            success: function(){
                    $("#mess_ar").
            }
        });
        return false;
    });
}):
</script>

我正在尝试上传:

<form id="submit" method="POST">
<textarea name="mess_cont" id="mess_ar" autofocus="autofocus" cols="70" rows="5">      </textarea>
<button id="mess_but" type="submit">Send</button>
</form>

谢谢...

推荐答案

​$(function(){
    $("form#submit").submit(function(e){
        e.preventDefault();
        var fid = $(".messag").attr("id");
        var val = $("#mess_ar").val();
        $.ajax({
            type: "POST",
            url: "send_message.php",
            data: "fid="+ fid +"&val="+ val,
            success: function(){
                $("#mess_ar").val("");
            }
        });
    });
});​

使用

$("#submit").on('submit', function(e){...});

代替

$("#submit").submit(function(e){...});

如果您使用的是最新版本的 jquery.

if you are using latest version of jquery.

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