表单绑定不工作请求

Here is my symfony form

这是我的symfony表单

class TeradataType extends AbstractType {
public function buildForm(FormBuilderInterface $builder, array $options) {
     $builder
       ->add('emplId','text',array(
        'attr'=>array(
            'class'=>'filter-control'
                )
       ))
       ->add('tmMbrUid','text',array(
        'attr'=>array(
            'class'=>'filter-control'
                )
       ))
       ->add('fstNm','text',array(
        'attr'=>array(
            'class'=>'filter-control'
                )
       ))
       ->add('lstNm','text',array(
            'attr'=>array(
                'class'=>'filter-control'
                )
       ));


}
public function getName(){
    return '';
   }

public function configureOptions(OptionsResolver $resolver) {
    $resolver->setDefaults(array(
        'csrf_protection' => false
    ));
}
}
class