Question

您好我已经创建了简单的mvc登录应用程序我期待实现记住我的功能与时间约束，如果记住我被检查，会话应该等到7天，如果用户不检查记住它应该在30分钟内销毁的会话，然后检查会话是否为null如果它是null然后它应该将其重定向到login.jsp

我使用了这个链接https://www.mkyong.com/spring-security/spring-security-remember-me-example/，因为我无法得到新的春天

的login.jsp

<form id="loginForm" role="form" action="login" method="post">
                            <fieldset>
                                <div class="form-group">
                                    <div class=" col-xs-15 control-label">
                                        <input class="form-control" placeholder="E-mail or Username"
                                            name="userName" type="text" autofocus>
                                    </div>
                                </div>
                                <div class="form-group">
                                    <div class=" col-xs-15 control-label">
                                        <input class="form-control" placeholder="Password"
                                            name="password" type="password" value="">
                                    </div>
                                </div>
                                <div class="checkbox">
                                    <label> <input name="remember" type="checkbox"
                                        value="Remember Me">Remember Me
                                    </label>
                                </div>
                                <input type="submit" class="btn btn-lg btn-success btn-block"
                                    value="login" /> <br>

                                <div class="dropdown">
                                    <button class="btn btn-info dropdown-toggle" type="button"
                                        data-toggle="dropdown">
                                        Registration Yourself <span class="caret"></span>
                                    </button>
                                    <ul class="dropdown-menu">
                                        <li><a href="StudentSelfRegister.jsp">Student</a></li>                                      
                                        <li><a href="TeacherSelfRegister.jsp">Teacher</a></li>
                                    </ul>
                                    <span><a href="javascript:void(0)"><u>Forgot your password ?</u></a></span>
                                </div>
                            </fieldset>

                        </form>

AppConfig.java

@Configuration
@EnableWebMvc
@ComponentScan(basePackages = "com.spring")
public class AppConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
    }

    @Bean
    public ViewResolver viewResolver() {
        InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/WEB-INF/views/");
        viewResolver.setSuffix(".jsp");
        return viewResolver;
    }

    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }
}

AppInitializer

public class AppInitializer implements WebApplicationInitializer {

    public void onStartup(ServletContext container) throws ServletException {

        AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
        ctx.register(AppConfig.class);
        ctx.setServletContext(container);

        ServletRegistration.Dynamic servlet = container.addServlet("dispatcher", new DispatcherServlet(ctx));

        servlet.setLoadOnStartup(1);
        servlet.addMapping("/");
    }

}

控制器

@Controller
public class LoginController {  
    @RequestMapping(value = "/login", method = RequestMethod.POST)
    public String authenticateUserLogin(@ModelAttribute User loginDTO) {
        if (loginDTO.getUserName().equals("admin") && loginDTO.getUserName().equals("123")) {
            return "Home";
        }
        return "Login";
    }
}

回到Home.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>

</body>
</html>

Answer 1

我做过类似的事情

<强>控制器

public class AccountController {

    @RequestMapping(value = "/", method = RequestMethod.GET)
    public String loginRequestHandler(ModelMap modelMap, HttpSession session, HttpServletRequest request) {
        Account acc = checkCookie(request);
        if (acc == null) {
            modelMap.put("accountForm", new Account());
            return "login";
        }   
        else {          
            AccountModel accountModel = new AccountModel();
            if (accountModel.login(acc.getUsername(), acc.getPassword())) {
                session.setAttribute("username", acc.getUsername());
                return "welcome";
            } else {
                modelMap.put("errorMSg", "invalid login from cookie");
                return "login";
            }
        }       
    }

    @RequestMapping(value = "/authenticate", method = RequestMethod.POST)
    public String loginRequestHandler(@ModelAttribute("accountForm") Account account,ModelMap modelMap,HttpSession session,HttpServletRequest request,HttpServletResponse response) {
        AccountModel accountModel=new AccountModel();
        if(accountModel.login(account.getUsername(), account.getPassword()))
        {
            session.setAttribute("username", account.getUsername());
            if(request.getParameter("remember")!=null)
            {
                Cookie ckUsername=new Cookie("username",account.getUsername());
                ckUsername.setMaxAge(30);
                response.addCookie(ckUsername);
                Cookie ckPassword=new Cookie("password",account.getPassword());
                ckUsername.setMaxAge(30);
                response.addCookie(ckPassword);
            }
            return "welcome";
        }
        else
        {
            modelMap.put("errorMSg", "invalid login not from cookie");
            return "login";
        }
    }


    @RequestMapping(value = "/logout", method = RequestMethod.GET)
    public String logout(HttpSession session,HttpServletRequest request,HttpServletResponse response) {
        session.removeAttribute("username");
        for (Cookie ck:request.getCookies()) {
            if(ck.getName().equalsIgnoreCase("username")){
                ck.setMaxAge(0);
                response.addCookie(ck);
            }
            if(ck.getName().equalsIgnoreCase("password")){
                ck.setMaxAge(0);
                response.addCookie(ck);
            }
        }
        return "login";
    }


    public Account checkCookie(HttpServletRequest request) {
        Cookie [] cookies=request.getCookies();
        Account account=null;
        String username="",  password="";
        for (Cookie ck:cookies) {
            if(ck.getName().equalsIgnoreCase("username"))
                username=ck.getValue();
            if(ck.getName().equalsIgnoreCase("password"))
                password=ck.getValue();
        }
        if(!username.isEmpty() && !password.isEmpty())
            account=new Account(username,password);
        return account;
    }
}

在jsp中

<c:if test="${sessionScope.username != null}">
   <c:redirect url = "http://localhost:8080/Test2/"/>
</c:if>
welcome ${sessionScope.username }
<br>
<a href="${pageContext.request.contextPath}/logout">Logout</a>

如何在具有时间约束的spring mvc中实现记住我的功能

1 个答案: