在Grails应用程序中实现"记住我"

在Grails应用程序中实现"记住我"功能，可以通过使用Spring Security插件来实现。Spring Security插件提供了一套完整的安全解决方案，包括认证、授权和"记住我"功能。

以下是在Grails应用程序中使用Spring Security插件实现"记住我"功能的步骤：

安装Spring Security插件：在Grails应用程序的根目录下运行以下命令来安装Spring Security插件：grails install-plugin spring-security-coregrails.plugins.springsecurity.userLookup.userDomainClassName = 'com.example.User' grails.plugins.springsecurity.userLookup.authorityJoinClassName = 'com.example.UserRole' grails.plugins.springsecurity.authority.className = 'com.example.Role' grails.plugins.springsecurity.controllerAnnotations.staticRules = [ '/': ['permitAll'], '/index': ['permitAll'], '/index.gsp': ['permitAll'], '/**/js/**': ['permitAll'], '/**/css/**': ['permitAll'], '/**/images/**': ['permitAll'], '/**/favicon.ico': ['permitAll'] ] grails.plugins.springsecurity.filterChain.chainMap = [ '/assets/**': 'JOINED_FILTERS,-exceptionTranslationFilter,-authenticationProcessingFilter,-securityContextPersistenceFilter,-rememberMeAuthenticationFilter', '/**': 'JOINED_FILTERS,-restTokenValidationFilter,-restExceptionTranslationFilter' ]package com.example class User implements Serializable { String username String password boolean enabled = true boolean accountExpired = false boolean credentialsExpired = false boolean accountLocked = false Set<Role> getAuthorities() { UserRole.findAllByUser(this).collect { it.role } as Set } static constraints = { username blank: false, unique: true password blank: false } static mapping = { password column: '`password`' } } package com.example class Role implements Serializable { String authority static constraints = { authority blank: false, unique: true } } package com.example class UserRole implements Serializable { User user Role role static constraints = { } } package com.example class UserDetailsService implements GrailsUserDetailsService { UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { User user = User.findByUsername(username) if (!user) { throw new UsernameNotFoundException('User not found', username) } new org.springframework.security.core.userdetails.User(user.username, user.password, user.enabled, true, true, true, user.authorities) } }package com.example class LoginController { def index() { if (springSecurityService.isLoggedIn()) { redirect uri: '/' } else { [loginForm: new LoginCommand()] } } def authenticate() { def loginCommand = new LoginCommand() bindData(loginCommand, params.loginForm, [include: ['username', 'password', 'rememberMe']]) if (loginCommand.hasErrors() || !springSecurityService.authenticationSuccess()) { flash.message = 'Authentication failed. Please try again.' redirect action: 'index' } else { redirect uri: (springSecurityService.currentUser as User).getTargetUri() ?: '/' } } } package com.example class LogoutController { def index() { redirect uri: '/' } } package com.example class LoginCommand { String username String password boolean rememberMe static constraints = { username blank: false password blank: false } }<!DOCTYPE html> <html> <head> <meta name="layout" content="main"> <title>Login</title> </head> <body> <div class="container"> <div class="row"> <div class="col-md-6 col-md-offset-3"> <g:if test="${flash.message}"> <div class="alert alert-danger">${flash.message}</div> </g:if> <g:form action="authenticate" class="form-horizontal"> <legend>Login</legend> <div class="form-group"> <label for="username" class="col-sm-2 control-label">Username</label> <div class="col-sm-10"> <input type="text" class="form-control" id="username" name="loginForm.username" placeholder="Username"> </div> </div> <div class="form-group"> <label for="password" class="col-sm-2 control-label">Password</label> <div class="col-sm-10"> <input type="password" class="form-control" id="password" name="loginForm.password" placeholder="Password"> </div> </div> <div class="form-group"> <div class="col-sm-offset-2 col-sm-10"> <div class="checkbox"> <label> <input type="checkbox" name="loginForm.remember
配置Spring Security插件：在grails-app/conf/Config.groovy文件中配置Spring Security插件。例如，可以设置以下属性：
创建用户和角色类：在grails-app/domain目录下创建User和Role类，并实现UserDetailsService接口。例如：
创建登录和注销控制器：在grails-app/controllers目录下创建LoginController和LogoutController类，并实现登录和注销功能。例如：
在grails-app/views目录下创建登录页面login/index.gsp和登录表单login/_form.gsp。例如：