catch the parameter post from view on same controller spring framework -

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i have code in php language using codeigniter framework. need translate spring framework, little confuse translate send parameter controller paramater :

$tipe   = $this->input->post("tipe_lst");

because in spring using:

@requestparam("tipe_lst") string tipe_lst

how catch parameter on same controller?, because parameter not have value, can null parameter, if use @requestparam, result can error.

you can set required = false in @requestparam annotation.
this;)

@requestparam("tipe_lst", required = false) string tipe_lst

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