google-api-client-java-async:允许非阻塞调用的 Google API Java 客户端的扩展

#Google API 非阻塞 Java 客户端 Google API Java 客户端的扩展，允许非阻塞调用 ##Usage Credential credential = ... //生成 OAuth 令牌 NIOHttpTransport nioTransport = new NIOHttpTransport(); 目录目录 = new Directory.Builder(nioTransport, new JacksonFactory(), credential); GoogleAsyncClient.executeAsync(directory.users().list().setCustomer("my_customer"), new FutureCallback<Users>() { @Override public void completed(Us