SSM project, using interceptors for permission control

Interceptor definition

public class Permissioninterceptor extends Handlerinterceptoradapter {@Autowired private adminuserroleservice ad

    Minuserroleservice; @Override public boolean prehandle (HttpServletRequest request, httpservletresponse response, Object handler) throws Ex
        ception {Adminuser Adminuser = (adminuser) request.getsession (). getattribute ("Adminuser"); If the user has not logged in, let the user log in if (Adminuser = null) {//returns the insufficient information in JSON format if (commonutils.isempty) (requ
            Est.getheader ("X-requested-with")) {Response.getwriter (). Print ("Need to log back in");
            else {response.getwriter (). Print (Jsonutils.tojson ajaxresult.errorinstance ("need to log back in"));
        return false;
        }//Request path String Servletpath = Request.getservletpath ();
        Check permissions Boolean result = Adminuserroleservice.checkpermission (Adminuser.getid (), Servletpath);
 if (Result) {return true;       else {//returns insufficient information in JSON format if (Commonutils.isempty request.getheader ("X-requested-with"))
            {Response.getwriter (). Print ("Insufficient permissions");
            else {response.getwriter (). Print (Jsonutils.tojson (ajaxresult.errorinstance ("Insufficient Permissions"));
        return false; }
    }
}

Interceptor Configuration

<mvc:interceptors>  
                       
            <!--Administrator rights interceptor-->
            <mvc:interceptor>
                <mvc:mapping path= "/ adminuser/* "/>
                ..... <mvc:exclude-mapping path= "/adminuser/login.do"/>
                <mvc:exclude-mapping path= "/adminUser/logout.do"/ >
                <mvc:exclude-mapping path= "/adminuser/updatepassword.do"/>
                <bean class= " Com.rupeng.web.interceptor.PermissionInterceptor "/>
            </mvc:interceptor>
        
        </mvc:interceptors >