Action:where您所请求的方法不存在！请问大家这是什么原因，怎么解决？
//自动验证
protected $_validate = array(
array('password','checkPwd','密码格式不正确',0,'function'), // 自定义函数验证密码格式
array('email','email','email格式错误'), //验证邮箱
);
//密码(以字母开头，长度在6~18之间，只能包含字母、数字和下划线)
function checkPwd($password){
if(!preg_match('/^[a-zA-Z]\w{5,17}$/', $password)){
return false;
}else{
return true;
}
}


//注册表单提交
function intoreg(){
$students = D('Students');

$data['email'] = $_POST['email'];
$data['nickName'] = $_POST['nickName'];
$data['password'] = I('password','','md5');
$data['password2'] = I('password2','','md5');

if($data['password'] != $data['password2']){
$this->error('确认密码有误！');
}
$data = $students->where(array('nickName'=>$data['nickName']))->find();
if($data){
$this->error('昵称已存在！');
}else{
if($students->create()){
$data['email'] = $_POST['email'];
$data['nickName'] = $_POST['nickName'];
$data['password'] = I('password','','md5');
if($students->add($data)){
$this->success('注册成功',U('Login/index'));
}else{
$this->error('注册失败');
}
}else{
$this->error('失败');
}
}
}