Ajax不发送数据

I am learning to use ajax. By clicking a submit button in a form, does not send data.

Jquery code:

 $('input[name="login"]').click(function()  {
    var username = $('#username').val();
    var password = $('#password').val();
    $.ajax({
        type: 'POST',
        url: '/?module=login&special_content=true',
        data:{'username':username,'password':password, 'action':'login'},
        success: function(e) {
            if(e == false)
            {
            }
            else
            {
                document.location.href = e;
            }
        }
    });
});

HTML code:

<section style="width: 400px; margin: 10% auto; float: none;" id="box">
<section id="box-header">
    <div id="box-title">%header_login%</div>
</section>
<section id="box-content" style="float: none;">
    <form method="POST" action="./">
        %login_username%<br>
        <input type="text" style="width: 100%;" class="input" name="username" placeholder="%login_input_user%" required/><br>
        %login_password%<br>
        <input type="password" style="width: 100%;" class="input" name="password" placeholder="%login_input_pass%" required/><br>
        <input type="button" id="login-button" style="width: 100%; box-sizing: border-box;" class="btn btn-red" name="login" value="%login_button%" />
    </form>
    <center><div style="margin-top: 5px;"> %login_or% <a href="?module=register">%login_signup%</a></div></center>
</section>

Where is the error? Thanks!

Your issue is caused by your selectors. $("#username") means you want an element with the id set to "username".

For your two text inputs, change name="username" and name="password" to id="username" and id="password" respectively.

In your code the #username and #password don't exist thus the .val() returns empty/null.

Change the selector to input[name= will fix the problem

$('input[name="login"]').click(function()  {
    var username = $('input[name=username]').val();
    var password = $('input[name=password]').val();
    $.ajax({
        type: 'POST',
        url: '/?module=login&special_content=true',
        data:{'username':username,'password':password, 'action':'login'},
        success: function(e) {
            if(e == false)
            {
            }
            else
            {
                document.location.href = e;
            }
        }
    });
});

http://jsfiddle.net/dgjBh/

check post requests with devtools ass seen in picture