Spring MVC -Request and Response Example
For doing Request & Response type of jobs in Spring MVC, we need to pass HttpServletRequest and HttpServletResponse objects in the request processing method of the Controller class
1.View Pages
//index.jsp
<h3>SmlCodes Login</h3>
<form action="login.html" method="post">
Username :<input type="text" name="username" /><br />
Password :<input type="password" name="password" /><br />
<input type="submit" value="Login" />
</form>
//successPage.jsp
<h1> ${msg} </h1>
//errorPage.jsp
<h1> ${msg} </h1>
2.Controller Class: LoginController.java
package controller;
@Controller
public class LoginController {
@RequestMapping("/login")
public ModelAndView login(HttpServletRequest req, HttpServletResponse res) {
String username = req.getParameter("username");
String password = req.getParameter("password");
if (username.equals(password)) {
return new ModelAndView("successPage", "msg", "Login Success!!!");
}
else {
return new ModelAndView("errorPage", "msg", "Login Failed!!!");
}
}
}
FrontController configuration web.xml, view pages in hello-servlet.xml are same as above example
