problem with overriding autologin in spring security?

greetings everybody iam using spring security 3 remember me service as follows

<http>
<remember-me/>
....</http>

and i want to perform some logic in the autologin so i tried to override the AbstractRememberMeServices as follows:

package com.foo;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.core.Authentication;
import org.springframework.securi开发者_运维百科ty.web.authentication.RememberMeServices;


public abstract class AbstractRememberMeServices implements RememberMeServices{

 @Override
 public Authentication autoLogin(HttpServletRequest arg0,
   HttpServletResponse arg1) {
  System.out.println("Auto Login");
  return null;
 }

 @Override
 public void loginSuccess(HttpServletRequest arg0, HttpServletResponse arg1,
   Authentication arg2) {
  System.out.println("Login Success");

 }

}

but the autologin occurs with no action,the user auto login but the print statement is not printed? what's wrong?

The fact that you have named your class AbstractRememberMeServices does not mean that every other class which was previously extending now extends your com.foo.AbstractRememberMeServices. I don't mean to be impolite, but you need to review your knowledge of Java basics.

Concerning you question, you need to write a custom org.springframework.security.web.authentication.RememberMeService implementation, configure it in Spring and register it using the services-ref attribute:

<security:remember-me services-ref="myRememberMeServices"/>