Spring MVC Annotation @RequestParam Example

@RequestParam:

Annotation which indicates that a method parameter should be bound to a web request parameter.

Supported for annotated handler methods in Servlet and Portlet environments.

If the method parameter type is Map and a request parameter name is specified, then the request parameter value is converted to a Map assuming an appropriate conversion strategy is available.

Example

package com.candidjava.springmvc;
 
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
 
@Controller
public class CustomerController
{
  @RequestMapping(value = "/customer.htm")
  public ModelAndView addCustomer(@RequestParam("txt_username") String txt_username, @RequestParam("txt_password") String txt_password)
  {
    ModelAndView model = new ModelAndView("page");
 
    model.addObject("msg", "RequestMapping for URL Parameters username = " + txt_username + " and password = " + txt_password);
 
    return model;
  }
 
  // *****************************************
 
}

Screenshot: