SpringSecurity

1.继承extends WebSecurityConfigurerAdapter

①重写方法：

@Override
protected void configure(HttpSecurity http) throws Exception

②密码加密

@Bean
public PasswordEncoder passwordEncoder(){
    return new BCryptPasswordEncoder();
}
③：使用记住我

@Autowired
PersistentTokenRepository tokenRepository;

@Bean
public PersistentTokenBasedRememberMeServices getPersistentTokenBasedRememberMeServices() {
		PersistentTokenBasedRememberMeServices tokenBasedservice = new PersistentTokenBasedRememberMeServices(
				"remember-me", userDetailsService, tokenRepository);
		return tokenBasedservice;
	}

替换记住我第二种方案，使用JdbcTokenRepositoryImpl：

@Bean
public PersistentTokenRepository persistentTokenRepository() {
		JdbcTokenRepositoryImpl tokenRepositoryImpl = new JdbcTokenRepositoryImpl();
		tokenRepositoryImpl.setDataSource(dataSource);
		return tokenRepositoryImpl;
	}

④：存储凭据在数据库中，所以要在UserDetailsService中配置DaoAuthenticationProvider来处理

//创建一个类实现此方法
@Autowired
@Qualifier("customUserDetailsService")
UserDetailsService userDetailsService;

@Bean
public DaoAuthenticationProvider authenticationProvider() {
		DaoAuthenticationProvider authenticationProvider = new DaoAuthenticationProvider();
		authenticationProvider.setUserDetailsService(userDetailsService);
		authenticationProvider.setPasswordEncoder(passwordEncoder());
		return authenticationProvider;
	}

2.初始化类注册 springSecurityFilter，穿件一个类继承extends AbstractSecurityWebApplicationInitializer：

public class SecurityWebApplicationInitializer extends AbstractSecurityWebApplicationInitializer {

}

3.配置springmvc：

@Configuration

@EnableWebMvc

@ComponentScan(basePackages = "com.yiibai.springmvc")
public class AppConfig extends WebMvcConfigurerAdapter{

重写此方法：

@Override

public void configureViewResolvers(ViewResolverRegistry registry) 

4.spring初始化器类：

public class AppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

	@Override
	protected Class<?>[] getRootConfigClasses() {
		return new Class[] { AppConfig.class };
	}
 
	@Override
	protected Class<?>[] getServletConfigClasses() {
		return null;
	}
 
	@Override
	protected String[] getServletMappings() {
		return new String[] { "/" };
	}

}