【spring boot--security】集成

🍁登录认证

加入依赖：

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

配置文件config类:

package com.nice.blog.admin.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
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.crypto.bcrypt.BCryptPasswordEncoder;

/**
 * @Description:
 * @Author : Jerry
 * @create : 2022-08-27 10:40
 */
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Bean
    public BCryptPasswordEncoder bCryptPasswordEncoder(){
        return new BCryptPasswordEncoder();
    }

    public static void main(String[] args) {
        //加密策略 MD5 不安全 彩虹表  MD5 加盐
        String nice = new BCryptPasswordEncoder().encode("nice");
        System.out.println(nice);
    }
    @Override
    public void configure(WebSecurity web) throws Exception {
        super.configure(web);
    }
    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http.authorizeRequests() //开启登录认证
//                .antMatchers("/user/findAll").hasRole("admin") //访问接口需要admin的角色
                .antMatchers("/css/**").permitAll()
                .antMatchers("/img/**").permitAll()
                .antMatchers("/js/**").permitAll()
                .antMatchers("/plugins/**").permitAll()
                .antMatchers("/admin/**").access("@authService.auth(request,authentication)") //自定义service 来去实现实时的权限认证
                .antMatchers("/pages/**").authenticated()
                .and().formLogin()
                .loginPage("/login.html") //自定义的登录页面
                .loginProcessingUrl("/login") //登录处理接口
                .usernameParameter("username") //定义登录时的用户名的key 默认为username
                .passwordParameter("password") //定义登录时的密码key，默认是password
                .defaultSuccessUrl("/pages/main.html")
                .failureUrl("/login.html")
                .permitAll() //通过 不拦截，更加前面配的路径决定，这是指和登录表单相关的接口 都通过
                .and().logout() //退出登录配置
                .logoutUrl("/logout") //退出登录接口
                .logoutSuccessUrl("/login.html")
                .permitAll() //退出登录的接口放行
                .and()
                .httpBasic()
                .and()
                .csrf().disable() //csrf关闭 如果自定义登录 需要关闭
                .headers().frameOptions().sameOrigin();// 支持iframe页面嵌套
    }

}

创建admin实体类：

package com.nice.blog.admin.entity;

import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import lombok.Data;

/**
 * @Description:
 * @Author : Jerry
 * @create : 2022-08-27 10:58
 */
@Data
public class Admin {

    @TableId(type = IdType.AUTO)
    private Long id;
    private String username;
    private String password;
}

创建AdminService:

package com.nice.blog.admin.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.nice.blog.admin.entity.Admin;
import com.nice.blog.admin.mapper.AdminMapper;
import com.nice.blog.admin.service.AdminService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * @Description:
 * @Author : Jerry
 * @create : 2022-08-27 11:03
 */
@Service
public class AdminServiceImpl implements AdminService {

    @Autowired
    private AdminMapper adminMapper;

    @Override
    public Admin findAdminByUsername(String username) {
        LambdaQueryWrapper<Admin> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Admin::getUsername,username);
        queryWrapper.last("limit 1");
        Admin admin = adminMapper.selectOne(queryWrapper);
        return admin;
    }
}

建立AuthService类：（主要写权限认证方法）

package com.nice.blog.admin.service;

import org.springframework.security.core.Authentication;
import org.springframework.stereotype.Service;

import javax.servlet.http.HttpServletRequest;

/**
 * @Description:
 * @Author : Jerry
 * @create : 2022-08-27 11:19
 */
@Service
public class AuthService {

    public boolean auth(HttpServletRequest request, Authentication authentication){
        return true;
    }

}

建立SecurityUserService类：
添加到spring容器中：

package com.nice.blog.admin.service;

import com.nice.blog.admin.entity.Admin;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.User;
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.Component;

import java.util.ArrayList;

/**
 * @Description:
 * @Author : Jerry
 * @create : 2022-08-27 10:52
 */
@Component
public class SecurityUserService implements UserDetailsService {

    @Autowired
    private AdminService adminService;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //登录的时候会把 username 传递到这里
        //通过username查询 admin表 如果admin存在 将密码告诉spring security
        //如果不存在 返回null 认证失败
        Admin admin = adminService.findAdminByUsername(username);
        if(admin == null){
            return null;
        }
        UserDetails userDetails = new User(username,admin.getPassword(),new ArrayList<>());
        //new ArrayList<>()为认证授权类，为null
        return userDetails;
    }
}

🍁权限认证

自定义service 来去实现实时的权限认证
在AuthService 里实现：

package com.nice.blog.admin.service;

import com.nice.blog.admin.entity.Admin;
import com.nice.blog.admin.entity.Permission;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Service;

import javax.servlet.http.HttpServletRequest;
import java.util.List;

/**
 * @Description: 权限认证
 * @Author : Jerry
 * @create : 2022-08-27 11:19
 */
@Service
public class AuthService {

    @Autowired
    private AdminService adminService;

    public boolean auth(HttpServletRequest request, Authentication authentication){
        //权限认证
        //请求路径
        String requestURI = request.getRequestURI();
        Object principal = authentication.getPrincipal(); //用户信息
        if(principal == null || "anonymousUser".equals(principal)){//匿名用户
            return false;
        }
        UserDetails userDetails = (UserDetails) principal;
        String username = userDetails.getUsername();
        Admin admin = adminService.findAdminByUsername(username);
        if(admin == null){
            return false;
        }
        if(1 == admin.getId()){
            //超级管理员
            return true;
        }
        Long id = admin.getId();
        List<Permission> permissionList = this.adminService.findAdminByAdminId(id);
        requestURI = StringUtils.split(requestURI,'?')[0]; //取到前面不到参数的那一部分
        for(Permission permission:permissionList){
            if(requestURI.equals(permission.getPath())){
                return true;
            }
        }
        return false;
    }

}

实现findAdminByAdminId方法：

/**
 * @Description:
 * @Author : Jerry
 * @create : 2022-08-27 11:03
 */
@Service
public class AdminServiceImpl implements AdminService {

    @Autowired
    private AdminMapper adminMapper;

    //.....

    @Override
    public List<Permission> findAdminByAdminId(Long id) {
        return adminMapper.findPermissionByAdminId(id);
    }
}

//不想建xml的话，也可以在mapper接口中直接写。

package com.nice.blog.admin.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.nice.blog.admin.entity.Admin;
import com.nice.blog.admin.entity.Permission;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;

import java.util.List;

/**
 * @Description:
 * @Author : Jerry
 * @create : 2022-08-27 10:58
 */
@Repository
public interface AdminMapper extends BaseMapper<Admin> {
    //不想建xml的话，也可以直接写。
    @Select("select * from ms_permission where id in(select permission_id from ms_admin_permission where admin_id = #{id})")
    List<Permission> findPermissionByAdminId(Long id);
}