1. 新建SpringBoot工程

2. 项目依赖

<dependencies> <!-- security --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-security</artifactId> </dependency> <!-- thymeleaf --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <!-- web --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!-- tomcat --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <!-- lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <!-- test --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> </dependency></dependencies>

3. 定义登录成功处理器

• 新建一个类实现AuthenticationSuccessHandler
• 重写onAuthenticationSuccess方法

package zw.springboot.controller;import lombok.SneakyThrows;import org.json.JSONObject;import org.springframework.security.core.Authentication;import org.springframework.security.web.authentication.AuthenticationSuccessHandler;import org.springframework.stereotype.Component;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.io.PrintWriter;/** * @className LoginSuccessHandler * @description 登录成功处理器 * @author 周威 * @date 2020-09-03 13:50 **/@Componentpublic class LoginSuccessHandler implements AuthenticationSuccessHandler{ @SneakyThrows @Override public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException { // 设置response缓冲区字符集 response.setCharacterEncoding("UTF-8"); // 定义一个JSONObject对象 JSONObject object = new JSONObject(); // 填写登录成功响应信息 object.put("code", 1); object.put("msg", "登录成功"); // 设置响应头 response.setContentType("application/json;charset=utf-8"); // 获得打印输出流 PrintWriter pw = response.getWriter(); // 向客户端写入一个字符串 pw.print(object.toString()); // 关闭流资源 pw.close(); }}

4. 定义登录失败处理器新建一个类实现AuthenticationFailureHandler接口重写onAuthenticationFailure方法

package zw.springboot.controller;import lombok.SneakyThrows;import org.json.JSONObject;import org.springframework.security.core.AuthenticationException;import org.springframework.security.web.authentication.AuthenticationFailureHandler;import org.springframework.stereotype.Component;import javax.servlet.ServletException;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.IOException;import java.io.PrintWriter;/** * @className LoginErrorHandler * @description 登录失败处理器 * @author 周威 * @date 2020-09-03 13:57 **/@Componentpublic class LoginErrorHandler implements AuthenticationFailureHandler{ @SneakyThrows @Override public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException authenticationException) throws IOException, ServletException { // 设置response缓冲区字符集 response.setCharacterEncoding("UTF-8"); // 定义一个JSONObject对象 JSONObject object = new JSONObject(); // 填写登录失败响应信息 object.put("code", -1); object.put("msg", "登录失败"); // 设置响应头 response.setContentType("application/json;charset=utf-8"); // 获得打印输出流 PrintWriter pw = response.getWriter(); // 向客户端写入一个字符串 pw.print(object.toString()); // 关闭流资源 pw.close(); }}

5. 安全认证配置类

package zw.springboot.config;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Bean;import org.springframework.security.config.annotation.web.builders.HttpSecurity;import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;import org.springframework.security.core.userdetails.User;import org.springframework.security.core.userdetails.UserDetailsService;import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;import org.springframework.security.crypto.password.PasswordEncoder;import org.springframework.security.provisioning.InMemoryUserDetailsManager;import org.springframework.security.web.authentication.AuthenticationFailureHandler;import org.springframework.security.web.authentication.AuthenticationSuccessHandler;/** * @className SpringSecurityConfig * @description 安全人认证配置类 * @author 周威 * @date 2020-09-03 13:42 **/@EnableWebSecuritypublic class SpringSecurityConfig extends WebSecurityConfigurerAdapter{ @Autowired private AuthenticationSuccessHandler loginSuccessHandler; @Autowired private AuthenticationFailureHandler loginErrorHandler; // 定义用户信息服务 @Bean @Override protected UserDetailsService userDetailsService() { InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager(); // 模拟两个用户身份 manager.createUser(User.withUsername("admin").password(passwordEncoder().encode("123456")).authorities("p1").build()); manager.createUser(User.withUsername("user").password(passwordEncoder().encode("654321")).authorities("p2").build()); return manager; } // 定义密码加密器 @Bean public PasswordEncoder passwordEncoder() { return new BCryptPasswordEncoder(); } // 定义拦截机制 @Override protected void configure(HttpSecurity http) throws Exception { http .authorizeRequests() // 设置哪些请求需要认证 .antMatchers("/**").authenticated() .and() // 启用表单登录认证 .formLogin() // 指定登录成功处理器 .successHandler(loginSuccessHandler) // 指定登录失败处理器 .failureHandler(loginErrorHandler); }}

6. 项目运行测试

7. 登录成功测试

8. 登录失败测试

总结

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