来自Google API的存储凭据可使用Java重复使用

您可以像这样从存储的凭据创建GoogleCredential对象：

GoogleCredential credential = new GoogleCredential.Builder()        .setTransport(new NetHttpTransport())        .setJsonFactory(new JacksonFactory())        .setClientSecrets("client_id", "client_secret")        .build();credential.setAccessToken("access_token");