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Spring Security提供了它自己的内置登录模块来对用户进行身份验证。它验证用户凭据并提供对应用程序的访问权限。
该模块呈现的登录页面是内置的。因此,我们不需要创建新的jsp页面。但是,如果我们要自定义登录页面,那我们该怎么做呢?
答案是,我们可以创建自己的jsp登录页面并将其集成到应用程序中。在本主题中,我们将创建一个自定义登录页面并将使用它来登录。
请参见示例。通过提供以下详细信息来创建maven项目。
完成后,它将创建以下项目结构。
配置项目以应用Spring安全性。它需要以下四个文件。创建一个包 com.w3codebox 并将这些文件放入其中。
//AppConfig.java
package com.w3codebox; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.web.servlet.config.annotation.EnableWebMvc; import org.springframework.web.servlet.view.InternalResourceViewResolver; import org.springframework.web.servlet.view.JstlView; @EnableWebMvc @Configuration @ComponentScan({ "com.w3codebox.controller.*" )) public class AppConfig { @Bean public InternalResourceViewResolver viewResolver() { InternalResourceViewResolver viewResolver new InternalResourceViewResolver(); viewResolver.setViewClass(JstlView.class); viewResolver.setPrefix("/WEB-INF/views/); viewResolver.setSuffix(".jsp"); return viewResolver; } }
//MvcWebApplicationInitializer.java
package com.w3codebox; import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer; public class MvcWebApplicationInitializer extends AbstractAnnotationConfigDispatcherServletInitializer { @Override protected Class<?>[] getRootConfigClasses() { return new Class[] { WebSecurityConfig.class }; } @Override protected Class<?>[] getServletConfigClasses() { // TOdo Auto-생성된 메서드 스탑 return null; } @Override protected String[] getServletMappings() {}} return new String[] { "/" }; } }
//SecurityWebApplicationInitializer.java
package com.w3codebox; import org.springframework.security.web.context.*; public class SecurityWebApplicationInitializer extends AbstractSecurityWebApplicationInitializer { }
//WebSecurityConfig.java
package com.w3codebox; import org.springframework.context.annotation.*; //import org.springframework.security.config.annotation.authentication.builders.*; import org.springframework.security.config.annotation.web.builders.HttpSecurity; import org.springframework.security.config.annotation.web.configuration.*; import org.springframework.security.core.userdetails.*; //import org.springframework.security.core.userdetails.UserDetailsService; import org.springframework.security.provisioning.InMemoryUserDetailsManager; import org.springframework.security.web.util.matcher.AntPathRequestMatcher; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; @EnableWebSecurity @ComponentScan("com.w"3codebox) public class WebSecurityConfig extends WebSecurityConfigurerAdapter {} @Bean public UserDetailsService userDetailsService() { InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager(); manager.createUser(User.withDefaultPasswordEncoder() .username("irfan").password("khan123").roles("ADMIN").build()); return manager; } @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests(). antMatchers("/index", "/user","/").permitAll() .antMatchers("/admin").authenticated() .and() .formLogin() .loginPage("/login") .and() .logout() .logoutRequestMatcher(new AntPathRequestMatcher("/logout")); } }
configure 메서드에서 formLogin() 다음에 메서드를 참조하세요 loginPage("/login")。이는 사용자 정의 로그인 페이지를 호출하기 위해 필요한 실제 메서드입니다.
먼저 우리의 로그인 페이지를 생성합니다. Spring 공식자의 말에 따르면, 로그인 페이지는 다음과 같아야 합니다.
//login.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <c:url value="/login" var="loginUrl"/> <form action="${loginUrl}" method="post"> <c:if test="${param.error != null}"> <p> 유효하지 않은 사용자 이름과 비밀번호. </p> </c:if> <c:if test="${param.logout != null}"> <p> You have been logged out. </p> </c:if> <p> <label for="username">Username</label> <input type="text" id="username" name="username"/> </p> <p> <label for="password">Password</label> <input type="password" id="password" name="password"/> </p> <input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}"/> <button type="submit" class="btn">Log in</button> </form>
//index.jsp
<html> <head> <title>Home Page</title> </head> <body> <h3> <br> Welcome to w3codebox! <br> </h3> <a href="admin">Login here</a> </body> </html>
//admin.jsp
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Home Page</title> </head> <body> Login Successful! <a href="logout">logout</a> </body> </html>
com.w3codebox.controller 패키지 내에 HomeController 컨트롤러를 생성했습니다。
//HomeController.java
package com.w3codebox.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; @Controller public class HomeController { @RequestMapping(value="/", method=RequestMethod.GET) public String index() { return "index"; } @RequestMapping(value="/login", method=RequestMethod.GET) public String login() { return "login"; } @RequestMapping(value="/admin", method=RequestMethod.GET) public String admin() { return "admin"; } }
//pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.w3codebox</groupId> <artifactId>springcustomlogin</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>war</packaging> <properties> <maven.compiler.target>1.8</maven.compiler.target> <maven.compiler.source>1.8</maven.compiler.source> </properties> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>5.0.2.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-web</artifactId> <version>5.0.0.RELEASE</version> </dependency> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-core</artifactId> <version>5.0.4.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/org.springframework.security/spring-security-config --> <dependency> <groupId>org.springframework.security</groupId> <artifactId>spring-security-config</artifactId> <version>5.0.4.RELEASE</version> </dependency> <!-- https://mvnrepository.com/artifact/javax.servlet-api/javax.servlet-api-api --> <dependency> <groupId>javax.servlet</groupId>/groupId> <artifactId>javax.servlet-api</artifactId>-api/artifactId> <version>3.1.0/version> <scope>provided</scope>/scope> </dependency> <dependency> <groupId>javax.servlet</groupId>/groupId> <artifactId>jstl</artifactId>/artifactId> <version>1.2</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId>/groupId> <artifactId>maven-war-plugin>/artifactId> <version>2.6</version> <configuration> <failOnMissingWebXml>false</failOnMissingWebXml>/failOnMissingWebXml> </configuration> </plugin> </plugins> </build> </project>
프로젝트는 다음과 같습니다:
출력:
지금, 사용자 정보를 제공하여 로그인합니다.
보여보세요, 그것이 잘 작동합니다. 지금, 필요에 따라 더 장식적이고 개인화된 장식을 생성할 수 있습니다.