springsecurity中使access_token获取用户信息（tokenStore)

springsecurity中使access_token获取用户信息（tokenStore)

public class TokenUtil {
	/**
	 * 根据token获取用户名
	 *
	 *

	 * @author hanjidong
	 * @date 2020年12月16日 上午10:37:12
	 * @since 0.0.1
	 * @param access_token
	 * @return
	 * String
	 */
	public static SyswareUserDetails getUserNameByToken(String access_token) {
		try {
			//获取tokensotre对象
			InMemoryTokenStore tokenStore = (InMemoryTokenStore) SystemContext.getBean("tokenStore");
			OAuth2AccessToken readAccessToken = tokenStore.readAccessToken(access_token);
			if(readAccessToken == null){
				throw new IllegalArgumentException("token无效");
			}
			if(readAccessToken.isExpired()){
				throw new RuntimeException("token已过期");
			}
			OAuth2Authentication oAuth2Authentication = null;
			Field authenticationStore = tokenStore.getClass().getDeclaredField("authenticationStore");
			authenticationStore.setAccessible(true);
			Object authenticationStoreObj = authenticationStore.get(tokenStore);
			if (authenticationStoreObj instanceof ConcurrentHashMap) {
				ConcurrentHashMap nticationStoreObjMap = (ConcurrentHashMap) authenticationStoreObj;
				oAuth2Authentication = nticationStoreObjMap.get(access_token);
			}
			Object principal = oAuth2Authentication.getPrincipal();
			
			return (SyswareUserDetails) principal;
//			//获取存储用户名与token的map
//			// 暴力反射获取属性
//			Field declaredField = tokenStore.getClass().getDeclaredField("userNameToAccessTokenStore");
//			// 设置反射时取消Java的访问检查，暴力访问
//			declaredField.setAccessible(true);
//			Object nameObject = declaredField.get(tokenStore);
//			if (nameObject instanceof ConcurrentHashMap) {
//				ConcurrentHashMap> usernameTokenMap = (ConcurrentHashMap>) nameObject;
//				Set>> entrySet = usernameTokenMap.entrySet();
//				for (Entry> entry : entrySet) {
//					Collection value = entry.getValue();
//					for (OAuth2AccessToken oAuth2AccessToken : value) {
//						if (oAuth2AccessToken.getValue().equals(access_token)) {
//							return entry.getKey().split(":")[1];
//						}
//					}
//				}
//			}
		} catch (Exception e) {
			throw new RuntimeException(e.getMessage());
		}
	}
}

@Component
public class SystemContext implements ApplicationContextAware{
	/**
     * 上下文对象实例
     */
    private static ApplicationContext applicationContext;

    @SuppressWarnings("static-access")
	@Autowired
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        this.applicationContext = applicationContext;
    }
    /**
     * 获取applicationContext
     * @return
     */
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }
    /**
     * 通过name获取 Bean.
     * @param name
     * @return
     */
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    /**
     * 通过class获取Bean.
     * @param clazz
     * @param 
     * @return
     */
    public static  T getBean(Class clazz){
        return getApplicationContext().getBean(clazz);
    }

    /**
     * 通过name,以及Clazz返回指定的Bean
     * @param name
     * @param clazz
     * @param 
     * @return
     */
    public static  T getBean(String name,Class clazz){
        return getApplicationContext().getBean(name, clazz);
    }
}