java Autowired批注在AuthenticationSuccessHandler中返回null

Question

在我的Spring安全应用程序中，我尝试在成功登录后返回cookie“记住令牌”。MyAuthenticateSccessHandlerclass自动连接RememberService类以从数据库获取“令牌”值。但autowired referenceRememberService返回空值。我确实提到了类的@Component注释，但它没有改变结果Link to complete source code

FormAuthenticationSuccessHandler：

package com.fastcheck.timesheet.common.security;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import com.fastcheck.timesheet.common.services.RememberMeService;


@Component
public class FormAuthenticationSuccessHandler implements AuthenticationSuccessHandler
{
    @Autowired
    public RememberMeService rememberMeService;

@Override
public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
        Authentication authentication) throws IOException, ServletException
{

    String username;
    Object principal = authentication.getPrincipal();
    if (principal instanceof UserDetails) 
        {
            username = ((UserDetails)principal).getUsername();
        } 
        else 
        {
            username = principal.toString();

        }

    System.out.println("rememberMeService :"+rememberMeService);
    if(rememberMeService != null)
        {
            Cookie cookie=new Cookie("remember_token",rememberMeService.getRememberMeToken(username));
            cookie.setMaxAge(200);
            response.addCookie(cookie);
        }


    response.setStatus(200);
    response.sendRedirect("home");


}

}

Answer 1

我从您的代码中了解到的是，您正在尝试实现创建SpringSecurity的目的是为您实现开箱即用

如果您正确地实现了spring安全性，我不明白为什么在成功进行身份验证后，RememberMe令牌不会自动存储在用户的浏览器上，就像您正在尝试的那样

Answer 2

记住自动发送到浏览器的令牌。您不需要单独发送。是否可以提供浏览器返回的cookie值？否则请使用下面的脚本进行解码

String cookieAsPlainText = new String(Base64.decode(cookies[i].getValue());

cookieAsPlainText作为普通值应为series:token格式。请让我知道这是否有帮助