jQuery - 获取ajax POST的表单值

Question

我试图通过AJAX将表单值发布到php文件.如何收集我的表单值以发送"data"参数？

$.ajax({
        type: "POST",
        data: "submit=1&username="+username+"&email="+email+"&password="+password+"&passconf="+passconf,
        url: "http://rt.ja.com/includes/register.php",
        success: function(data)
        {   
            //alert(data);
            $('#userError').html(data);
            $("#userError").html(userChar);
            $("#userError").html(userTaken);
        }
    });

HTML:

<div id="border">
  <form  action="/" id="registerSubmit">
    <div id="userError"></div>
      Username: <input type="text" name="username" id="username" size="10"/><br>
      <div id="emailError" ></div>
      Email: <input type="text" name="email" size="10" id="email"/><br>
      <div id="passError" ></div>
      Password: <input type="password" name="password" size="10" id="password"/><br>
      <div id="passConfError" ></div>
      Confirm Password: <input type="password" name="passconf" size="10" id="passconf"/><br>
      <input type="submit" name="submit" value="Register" />
  </form>
</div>

Answer 1

使用serialize方法:

$.ajax({
    ...
    data: $("#registerSubmit").serialize(),
    ...
})

文档:serialize()

Answer 2

$("#registerSubmit").serialize() // returns all the data in your form
$.ajax({
     type: "POST",
     url: 'your url',
     data: $("#registerSubmit").serialize(),
     success: function() {
          //success message mybe...
     }
});

Answer 3

var data={
 userName: $('#userName').val(),
 email: $('#email').val(),
 //add other properties similarly
}

和

$.ajax({
        type: "POST",
        url: "http://rt.ja.com/includes/register.php?submit=1",
        data: data

        success: function(html)
        {   
            //alert(html);
            $('#userError').html(html);
            $("#userError").html(userChar);
            $("#userError").html(userTaken);
        }
    });

您不必担心其他任何事情。jquery将处理序列化等。您也可以将提交查询字符​​串参数submit=1附加到数据json对象中。

Answer 4

您可以使用val函数从输入中收集数据:

jQuery("#myInput1").val();

http://api.jquery.com/val/