Security自定义全局AuthenticationManager

二、AuthenticationManager两种使用方式

1、默认方式

只要引入security依赖，SpringBoot默认会在工厂中创建AuthenticationManager bean,直接使用即可，但是使用是通过AuthenticationManagerBuilder来使用，如下

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    /**
     * 自定义一个方法，把springboot工厂中默认配置的AuthenticationManager拿出来使用即可
     */
    @Autowired
    public void authManager(AuthenticationManagerBuilder builder){
        System.out.println("默认=="+builder);

    }
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .anyRequest().authenticated()
                .and().formLogin();
    }
}

对于默认方式，默认工厂中有userDetailsService之后，AuthenticationManager自动会配置userDetailsService，所以使用的时候无需再自定义

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Bean
    public UserDetailsService userDetailsService(){
        InMemoryUserDetailsManager userDetailsManager = new InMemoryUserDetailsManager();
        userDetailsManager.createUser(User.withUsername("root").password("root").roles("admin").build());
        return userDetailsManager;
    }
    
    
    /*工厂中的AuthenticationManager会自动配置上面的userDetailsService 所以无需自定义
    @Autowired
    public void authManager(AuthenticationManagerBuilder builder) throws Exception {
        builder.userDetailsService(userDetailsService());
    }*/
    

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .anyRequest().authenticated()
                .and().formLogin();
    }
}

2、自定义方式

重写配置中的configure(AuthenticationManagerBuilder builder)方法，就会覆盖工厂默认的AuthenticationManager bean

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Bean
    public UserDetailsService userDetailsService(){
        InMemoryUserDetailsManager userDetailsManager = new InMemoryUserDetailsManager();
        userDetailsManager.createUser(User.withUsername("root").password("root").roles("admin").build());
        return userDetailsManager;
    }
    
    //自定义
    @Override
    protected void configure(AuthenticationManagerBuilder builder) throws Exception {
        //自定义AuthenticationManager后需要手动配置上面的userDetailsService
        builder.userDetailsService(userDetailsService());//改的是DaoAuthenticationProvider
        //也可通过builder.authenticationProvider()自定authenticationProvider
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .anyRequest().authenticated()
                .and().formLogin();
    }
}

默认的AuthenticationManager，在任何地方都可以注入使用，但是这种自定义方式创建的AuthenticationManager是对象工厂内部本地的一个AuthenticationManager，在其他地方使用，比如我们的controller中注入的时候就会出错，需要我们将自定义的AuthenticationManager暴露出去

@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Bean
    public UserDetailsService userDetailsService(){
        InMemoryUserDetailsManager userDetailsManager = new InMemoryUserDetailsManager();
        userDetailsManager.createUser(User.withUsername("root").password("root").roles("admin").build());
        return userDetailsManager;
    }
    
    //自定义
    @Override
    protected void configure(AuthenticationManagerBuilder builder) throws Exception {
        //手动配置上面的userDetailsService
        builder.userDetailsService(userDetailsService());//改的是DaoAuthenticationProvider
        //也可通过builder.authenticationProvider()自定authenticationProvider
    }
    //将上面自定义的AuthenticationManager在工厂中暴露，可以在任何位置注入
    @Override
    @Bean
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .anyRequest().authenticated()
                .and().formLogin();
    }
}

二、全局AuthenticationManager使用自定义数据源

1、数据库表设计

 

2、逻辑实现

boot整合mybatis流程省略

实体类如下（省略get set）

//角色
public class Role {
    private Integer id;
    private String name;
    private String nameZh;
}
//用户
/**
 * 自定义用户类实现UserDetails
 * 定义所有set方法
 * get方法只需要id和roles就行
 */
public class User implements UserDetails {
    private Integer id;
    private String username;
    private String password;
    private Boolean enabled;
    private Boolean accountNonLocked;//账号是否被锁
    private Boolean accountNonExpired;//账号是否过期
    private Boolean credentialsNonExpired;//密码是否过期
    private List roles = new ArrayList<>();//当前用户所有角色

    //权限信息
    @Override
    public Collection getAuthorities() {
        Set authorities = new HashSet<>();
        //数据库角色转成权限信息
        roles.forEach(role -> {
            SimpleGrantedAuthority simpleGrantedAuthority = new SimpleGrantedAuthority(role.getName());
            authorities.add(simpleGrantedAuthority);
        });
        return authorities;
    }

    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public String getUsername() {
        return username;
    }

    @Override
    public boolean isAccountNonExpired() {
        return accountNonExpired;
    }

    @Override
    public boolean isAccountNonLocked() {
        return accountNonLocked;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return credentialsNonExpired;
    }

    @Override
    public boolean isEnabled() {
        return enabled;
    }

    public Integer getId() {
        return id;
    }

    public List getRoles() {
        return roles;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public void setEnabled(Boolean enabled) {
        this.enabled = enabled;
    }

    public void setAccountNonLocked(Boolean accountNonLocked) {
        this.accountNonLocked = accountNonLocked;
    }

    public void setAccountNonExpired(Boolean accountNonExpired) {
        this.accountNonExpired = accountNonExpired;
    }

    public void setCredentialsNonExpired(Boolean credentialsNonExpired) {
        this.credentialsNonExpired = credentialsNonExpired;
    }

    public void setRoles(List roles) {
        this.roles = roles;
    }
}

自定义数据源类

@Component
public class MyUserDetailsService implements UserDetailsService {
    @Autowired
    UserDao userDao;
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //根据用户名查询
        User user = userDao.loadUserByUsername(username);
        if(ObjectUtils.isEmpty(user)){
            throw new UsernameNotFoundException("用户名不正确");
        }
        //根据用户查询具有的角色
        List roles = userDao.getRolesByUid(user.getId());
        //设置权限 后续直接可通过getAuthorities获取到权限信息
        user.setRoles(roles);
        return user;
    }
}

 mapper.xml两个方法

 配置类

@Configuration
public class MySecurityConfig extends WebSecurityConfigurerAdapter {
    //注入自定义的数据源
    @Autowired
    private MyUserDetailsService myUserDetailsService;

    //自定义AuthenticationManager
    @Override
    protected void configure(AuthenticationManagerBuilder builder) throws Exception {
        builder.userDetailsService(myUserDetailsService);
    }
    //暴露自定义的AuthenticationManager
    @Override
    @Bean
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                //=================资源拦截=============
                .mvcMatchers("/user/login").permitAll()//permitAll（）表示放行资源 无需认证就可访问 必须放在所有认证前
                .anyRequest().authenticated()//anyRequest()所有请求 .authenticated()表示所有请求需要认证才能访问
                .and().formLogin() //formLogin()表示表单认证

                //=================登录界面配置=================
                .loginPage("/login.html")//自定义访问登录页面地址
                .loginProcessingUrl("/doLogin")//自定义登录请求的url
                .usernameParameter("name")//自定义用户名、密码变量名
                .passwordParameter("pass")

                //=================认证配置=================
                .successForwardUrl("/index")//认证成功始终跳转的路径.defaultSuccessUrl("/hello") redirect 重定向跳转 但是优先跳转到请求的路径 ，可以传入第二个参数true总是重定向到hello
                .failureForwardUrl("/user/toLoginPage")//认证失败 跳转 错误信息在request中,.failureUrl("/login.html")认证失败 redirect跳转 错误信息在session中

                //=================注销相关配置==========================
                .and().logout()//开启注销，默认是配置的
                .logoutUrl("/user/logout")//注销地址，默认是logout 并且请求方式只能是get
                .invalidateHttpSession(true)//清除session信息，默认true
                .clearAuthentication(true)//清除认证信息，默认true
                .logoutSuccessUrl("/user/toLoginPage")//退出，默认是登录页面地址

                .and().csrf().disable();
    }
}