1.需要的依赖

		<!--thylemeaf与springsecurity整合-->
		<dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-springsecurity4</artifactId>
            <version>3.0.4.RELEASE</version>
        </dependency>

		<!--security-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        
        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        
        <!--thymeleaf-->
 		<dependency>
            <groupId>org.thymeleaf</groupId>
            <artifactId>thymeleaf-spring5</artifactId>
        </dependency>
        <dependency>
            <groupId>org.thymeleaf.extras</groupId>
            <artifactId>thymeleaf-extras-java8time</artifactId>
        </dependency>

2.静态资源（首页、登录页…比较简陋在我资源可以免费获取）

目录结构

3. controller页面跳转

package com.kuang.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class RouterController {
	// 首页
    @RequestMapping({"/","/index"})
    public String index(){
        return "index";
    }

	// 到登录页面
    @RequestMapping("/toLogin")
    public String toLogin(){
        return "views/login";
    }
    
    //分别到各个页面
    @RequestMapping("/level1/{id}")
    public String level1(@PathVariable("id")int id){
        return "views/level1/"+id;
    }

    @RequestMapping("/level2/{id}")
    public String level2(@PathVariable("id")int id){
        return "views/level2/"+id;
    }

    @RequestMapping("/level3/{id}")
    public String level3(@PathVariable("id")int id){
        return "views/level3/"+id;
    }
}

4.继承WebSecurityConfigurerAdapter

import org.springframework.beans.factory.annotation.Autowired;
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.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter{
    //链式编程
    //授权
    @Override
    protected void configure(HttpSecurity http) throws Exception{
        //所有人可以访问首页，功能页只有对应的权限才能访问
        //访问规则
        http.authorizeRequests()
                .antMatchers("/").permitAll()
                .antMatchers("/level1/**").hasRole("vip1")
                .antMatchers("/level2/**").hasRole("vip2")
                .antMatchers("/level3/**").hasRole("vip3");

        //没有权限默认跳转登录页面
           http.formLogin().
                   loginPage("/toLogin").
                   usernameParameter("user"). // 表单提交的用户名要与name对应
                   passwordParameter("pwd").  // 表单提交的密码
                   loginProcessingUrl("/login");

        //网站攻击 关闭
        http.csrf().disable();

           //开启注销功能
        http.logout().logoutSuccessUrl("/");

        //开启记住我功能
        http.rememberMe().rememberMeParameter("remember");
    }
 // 利用内存数据进行认证
    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication()
                // 密码需要加密 
                .passwordEncoder(new BCryptPasswordEncoder())
                .withUser("weihuadi").password(new BCryptPasswordEncoder().encode("123")).roles("vip2","vip3")
                .and()
                .withUser("root").password(new BCryptPasswordEncoder().encode("123")).roles("vip1","vip2","vip3")
                .and()
                .withUser("guest").password(new BCryptPasswordEncoder().encode("123")).roles("vip1");

    }
 }

5.测试

5.1 首页

5.2 登录页面

5.3 我登录了root页面(可以展示所有页面)

5.4 点击注销回到首页，并清除cookie和session

5.5 thymeleaf整合security对权限的判断和控制

原文链接:https://blog.csdn.net/weixin_49092628/article/details/117359081