This sample demonstrates how to use Google Cloud Spanner from Google App Engine standard Java 11 environment.

• Install the Google Cloud SDK and run:

   gcloud init

If this is your first time creating an App engine application:

   gcloud app create

• Copy the sample apps to your local machine:

  git clone https://github.com/GoogleCloudPlatform/java-docs-samples

• Add the appengine-simple-jetty-main Main class to your classpath:

  cd java-docs-samples/appengine-java11/appengine-simple-jetty-main
  mvn install

• Create a Spanner instance.

• Update SPANNER_INSTANCE value in [app.yaml](src/main/appengine/app.yaml) with your instance id.

• Move into the appengine-java11/spanner directory and compile the app:

  cd ../spanner
  mvn package

• /spanner : will run sample operations against the spanner instance in order. Individual tasks can be run using the task query parameter. See SpannerTasks for supported set of tasks. Note : by default all the spanner example operations run in order, this operation may take a while to return.

mvn clean package appengine:deploy

To see the results of the deployed sample application, open https://PROJECT_ID.appspot.com/spanner in a web browser. Note : by default all the spanner example operations run in order, this operation may take a while to show results.