问java -如何从jsp页面向控制器发送请求

EN

<div class="control-group">
<form action="customerRegistrationReport" method="GET" target="_blank"   
  <input type="hidden" id="crID" value="${registration.id }"/>
  <input type="Submit" class="btn btn-primary" value="Print" />
</form> 
</div>

@Controller
public class CustomerRegistrationJasperController {

    @Autowired
    CustomerRegistrationService customerRegistrationService;

    @RequestMapping("customerRegistrationReport")
    public void customerRegistrationReport(@RequestParam(required=true,value="crID") String crID){      

        //int Id=Integer.parseInt(crID);
        System.out.println("int id is : "+crID);
}