遷移發送佇列時建立 App Engine 工作

將發送佇列程式碼從 App Engine 工作佇列遷移至 Cloud Tasks 時，建立 App Engine 工作。

深入探索

如需包含這個程式碼範例的詳細說明文件，請參閱下列內容：

程式碼範例

Java

如要瞭解如何安裝及使用 Cloud Tasks 的用戶端程式庫，請參閱「Cloud Tasks 用戶端程式庫」。

如要向 Cloud Tasks 進行驗證，請設定應用程式預設憑證。 詳情請參閱「為本機開發環境設定驗證」。

import com.google.cloud.tasks.v2.AppEngineHttpRequest;
import com.google.cloud.tasks.v2.CloudTasksClient;
import com.google.cloud.tasks.v2.HttpMethod;
import com.google.cloud.tasks.v2.QueueName;
import com.google.cloud.tasks.v2.Task;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(
    name = "TaskEnqueue",
    description = "Enqueue a task targeted at endpoint '/cloudtasks/worker'",
    urlPatterns = "/cloudtasks/enqueue")
public class Enqueue extends HttpServlet {

  // TODO(developer): Replace these variables before running the sample.
  static final String projectId = "my-project-id";
  static final String locationId = "us-central1";

  // Function creates Cloud Tasks from form submissions.
  protected void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    String key = request.getParameter("key");

    try (CloudTasksClient client = CloudTasksClient.create()) {
      // Construct the fully qualified queue name.
      String queueName = QueueName.of(projectId, locationId, "default").toString();

      // Construct the task body.
      Task task =
          Task.newBuilder()
              .setAppEngineHttpRequest(
                  AppEngineHttpRequest.newBuilder()
                      .setRelativeUri("/cloudtasks/worker?key=" + key)
                      .setHttpMethod(HttpMethod.POST)
                      .build())
              .build();

      // Add the task to the default queue.
      Task taskResponse = client.createTask(queueName, task);
      System.out.println("Task created: " + taskResponse.getName());
    }

    response.sendRedirect("/");
  }
}

後續步驟

如要搜尋及篩選其他 Google Cloud 產品的程式碼範例，請參閱Google Cloud 範例瀏覽器。