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目录

一、登录验证

1.自定义密码账号

Ⅰ.引入依赖

Ⅱ. XxxApplication启动类

Ⅲ. 在application.yml文件中自定义

Ⅳ.启动项目

2.从数据库中查找账号和密码 

Ⅰ.引入依赖

Ⅱ. application.yml文件

Ⅲ. bean包的操作

Ⅳ. service层

Ⅴ.config配置类 

Ⅵ.启动项目

二、权限问题

1.config类

2.bean包

3.service层

4.启动项目

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一、登录验证

1.自定义密码账号

Ⅰ.引入依赖

先搭建好一个SpringBoot框架，在基础上引入依赖

<!--web-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <version>2.7.1</version>
</dependency>
<!--小辣椒-->
<dependency>
    <groupId>org.projectlombok</groupId>
    <artifactId>lombok</artifactId>
    <version>1.18.24</version>
</dependency>
<!--spring security-->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>

Ⅱ. XxxApplication启动类

@SpringBootApplication
public class DemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class,args);
    }
}

Ⅲ. 在application.yml文件中自定义

spring:
  security:
    user:
      name: porsche
      password: 911

Ⅳ.启动项目

运行项目，在网页中输入账号密码。

2.从数据库中查找账号和密码 

Ⅰ.引入依赖

<!--mysql连接-->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
</dependency>
<!--mybatis plus-->
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.5.1</version>
</dependency>
<!--druid-->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid-spring-boot-starter</artifactId>
    <version>1.2.9</version>
</dependency>

Ⅱ. application.yml文件

server:
  port: 8080
spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    username: bjwl
    password: bjwl
    url: jdbc:mysql://192.168.1.118:3306/book_store?serverTimezone=Asia/Shanghai&useSSL=false&allowPublicKeyRetrieval=true
    type: com.alibaba.druid.pool.DruidDataSource
mybatis-plus:
  configuration:
    map-underscore-to-camel-case: false 
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl

Ⅲ. bean包的操作

实体类：

@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("user")
public class Users implements Serializable {
 
    private Integer id;
    private String userName;
    private String passWord;
    private String nickName;
    private Integer state;
}

LoginUsers类：

@AllArgsConstructor
@NoArgsConstructor
public class LoginUsers implements UserDetails {
    private Users users;
 
    //返回当前用户的所有权限
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return users.getList();
    }
 
    //返回密码
    public String getPassword() {
        return users.getPassWord();
    }
 
    //返回用户名
    public String getUsername() {
        return users.getUserName();
    }
 
    @Override
    public boolean isAccountNonExpired() {
        return true;
    }
 
    @Override
    public boolean isAccountNonLocked() {
        return true;
    }
 
    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }
 
    @Override
    public boolean isEnabled() {
        return true;
    }
}

Ⅳ. service层

// 是SpringSecurity的业务类，负责实现认证和授权
@Service
public class UsersService implements UserDetailsService {
    @Resource
    private UsersMapper mapper;
 
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        QueryWrapper<Users> wrapper = new QueryWrapper<>();
        wrapper.eq("username", username);
        Users users = mapper.selectOne(wrapper);//查询一条记录
        if (Objects.isNull(users)) {
            throw new RuntimeException("用户名没有找到");
        }
        return new LoginUsers(users);
    }
}

Ⅴ.config配置类 

/*
它是SpringSecurity的配置类
 */
@Configuration
public class SpringSecurityConfig extends WebSecurityConfigurerAdapter {
    @Resource
    private UsersService usersService;
 
    @Bean
    public PasswordEncoder getPasswordEncoder() {
        return new BCryptPasswordEncoder();
    }
 
    //数据库的认证
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(usersService).passwordEncoder(getPasswordEncoder());
    }
}

Ⅵ.启动项目

 此时后台也会显示出，在数据库中查询了一次

二、权限问题

1.config类

在类中设置权限，和设置权限名，给1.html只开启了abc01的权限，给2.html开启了abc01和abc02的权限。

也就是说abc01可以访问1.html和2.html，abc02只可以访问2.html

protected void configure(HttpSecurity http) throws Exception {
    http.formLogin()
            .loginPage("/login.html")   //登录页面设置
            .loginProcessingUrl("/a/lo")    //登录访问路径  这里同 login.html中的action
            .permitAll()
            .and().exceptionHandling().accessDeniedPage("/403.html")
            .and().authorizeRequests()
            .antMatchers("/login.html", "/a/lo").permitAll()    //设置哪些路径可以直接访问，不需要认证
            .antMatchers("/1.html").hasAuthority("adc01")   //设置当前网页访问权限
            .antMatchers("/2.html").hasAnyAuthority("abc01","abc02")
            .anyRequest().authenticated()   //所有请求都可以访问
            .and().csrf().disable();    //关闭csrf，csrf：跨站请求伪造
}

2.bean包

在实体类中加入

@TableField(exist = false)
private List<GrantedAuthority> list;

3.service层

为用户设置权限名

List<GrantedAuthority> list = new ArrayList<>();
list.add(new SimpleGrantedAuthority("abc02"));
users.setList(list);

4.启动项目

登录

访问1.html

访问2.html

 

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