spring boot 整合 spring security

项目结构

添加依赖

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.9.RELEASE</version>
        <relativePath/>
    </parent>

     <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-freemarker</artifactId>
         <version>2.4.2</version>
     </dependency>

     <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-security</artifactId>
     </dependency>

修改配置文件

spring:
  freemarker:
    template-loader-path: classpath:/templates/
    charset: UTF-8
    cache: false
    suffix: .ftl

创建登录页

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录页</title>
</head>
<body>
<form id="formLogin" method="post">
    用户名<input type="text" name="username" value="admin"/>
    密码<input type="text" name="password" value="123456"/>
    <input type="checkbox" name="remember-me" value="true"/>记住我
    <input type="button" onclick="login()" value="login"/>
</form>
</body>
<script type="text/javascript" src="js/jquery.min.js"></script>
<script>
    function login() {
        $.ajax({
            type: "POST",//方法类型
            dataType: "json",//服务器预期返回类型
            url: "/login",   // 登录url
            data: $("#formLogin").serialize(),
            success: function (data) {
                console.log(data)
                if (data.code == 200) {
                    window.location.href = "/";
                } else {
                    alert(data.message);
                }
            }
        });
    }
</script>
</html>

创建首页

index.ftl

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>首页</title>
</head>
<body>
我是首页
</body>
</html>

创建SecurityConfiguration类

package com.lgg.config;

import com.lgg.service.MyAuthenticationService;
import com.lgg.service.MyUserDetailsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.security.web.authentication.rememberme.JdbcTokenRepositoryImpl;
import org.springframework.security.web.authentication.rememberme.PersistentTokenRepository;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.sql.DataSource;
import java.io.IOException;

/**
 * Security配置类
 */
@Configuration
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Autowired
    private MyUserDetailsService myUserDetailsService;
    @Autowired
    private MyAuthenticationService myAuthenticationService;

    /**
     * http请求处理方法
     *
     * @param http
     * @throws Exception
     */
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests().antMatchers("/toLoginPage", "/code/**").permitAll()//放行登录页面
                .anyRequest().authenticated()//所有请求都需要登录认证才能访问;
                .and().formLogin()//开启表单认证
                .loginPage("/toLoginPage")//自定义登录页面
                .loginProcessingUrl("/login")// 登录处理Url
                .usernameParameter("username").passwordParameter("password") //修改自定义表单name值.
                .successHandler(myAuthenticationService)//自定义登录成功处理
                .failureHandler(myAuthenticationService)//自定义登录失败处理
//                .defaultSuccessUrl("/")
//                .successForwardUrl("/")
                .and().logout().logoutUrl("/logout")//设置退出url
                .logoutSuccessHandler(myAuthenticationService)//自定义退出处理
                .and().rememberMe().rememberMeParameter("remember-me")// 自定义表单name值
                .tokenValiditySeconds(2 * 7 * 24 * 60 * 60)// 两周
                .tokenRepository(getPersistentTokenRepository())// 设置tokenRepository
                .and().csrf().disable(); // 关闭csrf防护

        // 允许iframe加载页面
        http.headers().frameOptions().sameOrigin();
    }

    @Autowired
    DataSource dataSource;

    /**
     * 持久化token,负责token与数据库之间的相关操作
     *
     * @return
     */
    @Bean
    public PersistentTokenRepository getPersistentTokenRepository() {
        JdbcTokenRepositoryImpl tokenRepository = new JdbcTokenRepositoryImpl();
        tokenRepository.setDataSource(dataSource);//设置数据源
        // 启动时创建一张表, 第一次启动的时候创建, 第二次启动的时候需要注释掉, 否则会报错
//        tokenRepository.setCreateTableOnStartup(true);
        return tokenRepository;
    }


    /**
     * WebSecurity
     *
     * @param web
     * @throws Exception
     */
    @Override
    public void configure(WebSecurity web) throws Exception {
        //解决静态资源被拦截的问题
        web.ignoring().antMatchers("/css/**", "/images/**", "/js/**", "/favicon.ico");
    }

    /**
     * 身份验证管理器
     *
     * @param auth
     * @throws Exception
     */
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);// 使用自定义用户认证
    }


}

创建MyAuthenticationService类

package com.lgg.service;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.DefaultRedirectStrategy;
import org.springframework.security.web.RedirectStrategy;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.security.web.authentication.logout.LogoutSuccessHandler;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

/**
 * 自定义登录成功或失败处理类
 */
@Service
public class MyAuthenticationService implements AuthenticationSuccessHandler, AuthenticationFailureHandler, LogoutSuccessHandler {

    @Autowired
    ObjectMapper objectMapper;
    private RedirectStrategy redirectStrategy = new DefaultRedirectStrategy();

    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
        System.out.println("登录成功后续处理....");
//        redirectStrategy.sendRedirect(request, response, "/");
//
        Map result = new HashMap();
        result.put("code", HttpStatus.OK.value());// 设置响应码
        result.put("message", "登录成功");// 设置响应信息
        response.setContentType("application/json;charset=UTF-8");
        response.getWriter().write(objectMapper.writeValueAsString(result));
    }

    @Override
    public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
        System.out.println("登录失败后续处理....");
        //redirectStrategy.sendRedirect(request, response, "/toLoginPage");
//        Map result = new HashMap();
//        result.put("code", HttpStatus.UNAUTHORIZED.value());// 设置响应码
//        result.put("message", exception.getMessage());// 设置错误信息
//        response.setContentType("application/json;charset=UTF-8");
//        response.getWriter().write(objectMapper.writeValueAsString(result));
    }

    @Override
    public void onLogoutSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
        System.out.println("退出成功后续处理....");
        redirectStrategy.sendRedirect(request, response, "/toLoginPage");
    }

}

创建MyUserDetailsService类

package com.lgg.service;


import com.lgg.entity.User;
import com.lgg.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Collection;

/**
 * 基于数据库中完成认证
 */
@Service
public class MyUserDetailsService implements UserDetailsService {

    @Autowired
    UserService userService;

    /**
     * 根据username查询用户实体
     *
     * @param username
     * @return
     * @throws UsernameNotFoundException
     */
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userService.findByUsername(username);
        if (user == null) {
            throw new UsernameNotFoundException(username);// 用户名没有找到
        }
        // 先声明一个权限集合, 因为构造方法里面不能传入null
        Collection<? extends GrantedAuthority> authorities = new ArrayList<>();
        // 需要返回一个SpringSecurity的UserDetails对象
        UserDetails userDetails =
                new org.springframework.security.core.userdetails.User(user.getUsername(),
//                        "{noop}" + user.getPassword(),// {noop}表示不加密认证。
                        "{bcrypt}" + user.getPassword(),
                        true, // 用户是否启用 true 代表启用
                        true,// 用户是否过期 true 代表未过期
                        true,// 用户凭据是否过期 true 代表未过期
                        true,// 用户是否锁定 true 代表未锁定
                        authorities);
        return userDetails;
    }
}

创建HelloSecurityController类

package com.lgg.controller;


import com.lgg.entity.User;
import com.lgg.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.RememberMeAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.annotation.AuthenticationPrincipal;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationException;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

/**
 * security入门案例
 */
@Controller
public class HelloSecurityController {


    @RequestMapping("/toLoginPage")
    public String toLoginPage() {
        return "login";
    }

    /**
     * 获取当前登录用户
     *
     * @return
     */
    @RequestMapping("/abc")
//    @ResponseBody
    public String getCurrentUser() {
        UserDetails userDetails = (UserDetails)
                SecurityContextHolder.getContext().getAuthentication().getPrincipal();
        System.out.println("abc");
        return "abc";
    }

    /**
     * 获取当前登录用户
     *
     * @return
     */
    @RequestMapping("/loginUser1")
    @ResponseBody
    public UserDetails getCurrentUser1() {
        UserDetails userDetails = (UserDetails)
                SecurityContextHolder.getContext().getAuthentication().getPrincipal();
        return userDetails;
    }

    /**
     * 获取当前登录用户
     *
     * @return
     */
    @RequestMapping("/loginUser2")
    @ResponseBody
    public UserDetails getCurrentUser(Authentication authentication) {
        UserDetails userDetails = (UserDetails) authentication.getPrincipal();
        return userDetails;
    }

    /**
     * 获取当前登录用户
     *
     * @return
     */
    @RequestMapping("/loginUser3")
    @ResponseBody
    public UserDetails getCurrentUser(@AuthenticationPrincipal UserDetails userDetails) {
        return userDetails;
    }

    @Autowired
    private UserService userService;

    /**
     * 根据用户ID查询用户
     *
     * @return
     */
    @GetMapping("/{id}")
    @ResponseBody
    public User getById(@PathVariable Integer id) {
        //获取认证信息
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        // 判断认证信息是否来源于RememberMe
        if (RememberMeAuthenticationToken.class.isAssignableFrom(authentication.getClass())) {
            throw new RememberMeAuthenticationException("认证信息来源于RememberMe,请重新登录");
        }
        User user = userService.getById(id);
        return user;
    }


}