使用 gcloud CLI 在 Pub/Sub 中发布和接收消息

本页面介绍如何使用 Google Cloud CLI 在 Pub/Sub 中执行以下操作：

  • 创建主题和订阅
  • 将消息发布到主题。
  • 接收来自订阅的消息。

如需在 Google Cloud 控制台中直接遵循有关此任务的分步指导，请点击操作演示：

操作演示

准备工作

  1. Sign in to your Google Cloud account. If you're new to Google Cloud, create an account to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.

  2. Set up a Google Cloud console project.

    Set up a project

    Click to:

    • Create or select a project.
    • Enable the Pub/Sub API for that project.

    You can view and manage these resources at any time in the Google Cloud console.

  3. Install the Google Cloud CLI.

  4. To initialize the gcloud CLI, run the following command: 

    gcloud init

  5. Set up a Google Cloud console project.

    Set up a project

    Click to:

    • Create or select a project.
    • Enable the Pub/Sub API for that project.

    You can view and manage these resources at any time in the Google Cloud console.

  6. Install the Google Cloud CLI.

  7. To initialize the gcloud CLI, run the following command: 

    gcloud init

创建主题

创建 ID 为 my-topic 的主题：

gcloud pubsub topics create my-topic

创建订阅

创建 ID 为 my-sub 的订阅，并将其附加到 my-topic：

gcloud pubsub subscriptions create my-sub --topic=my-topic

发布消息

将消息发布到 my-topic：

gcloud pubsub topics publish my-topic --message="hello"

接收消息

接收来自 my-sub 的消息：

gcloud pubsub subscriptions pull my-sub --auto-ack

gcloud CLI 会将消息输出到命令行。

结果怎么样？

后续步骤