laravel Ajax post方式的使用

<div class="fl">
<input  type="email" id="email" name="email" value="{{$data -> email}}">
<span id="pass1" style="display:none;">邮箱格式不正确</span>
<span id="pass2" style="display:none;">邮箱格式正确</span>
</div>

//email判断
$("input[name='email']").on('blur',function()
{
$.post('/user/email',{'_token':'{{csrf_token()}}','email':$("#email").val()},function(data) //第二个参数要传token的值 再传参数要用逗号隔开
{
if(data == 2)
{
$("#pass1").css("display","block");
$("input[name='email']").on('focus',function(){
$("#pass1").css("display","none");
});
}else if(data == 1){
$("#pass2").css("display","block");
$("input[name='email']").on('focus',function(){
$("#pass2").css("display","none");
});
}
});
});

Route::post('/user/email','Home\CenterController@email');

//ajax
// 判断邮箱
public function email()
{
$eamil = $_POST['email'];
$patten = '/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/';
preg_match($patten,$eamil,$match);
if($match)
{
echo 1;
}else{
echo 2;
}
}