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docs: add simple connection sample to readme #263

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merged 1 commit into from Nov 8, 2020
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docs: add simple connection sample to readme #263

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28 changes: 25 additions & 3 deletions README.md
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Expand Up @@ -58,8 +58,30 @@ See the [Google Cloud Spanner JDBC client library docs][javadocs] to learn how t
use this Google Cloud Spanner JDBC Client Library.




### Creating a JDBC Connection

The following example shows how to create a JDBC connection to Cloud Spanner and execute a simple query.

```java
String projectId = "my-project";
String instanceId = "my-instance";
String databaseId = "my-database";

try (Connection connection =
DriverManager.getConnection(
String.format(
"jdbc:cloudspanner:/projects/%s/instances/%s/databases/%s",
projectId, instanceId, databaseId))) {
try (Statement statement = connection.createStatement()) {
try (ResultSet rs = statement.executeQuery("SELECT CURRENT_TIMESTAMP()")) {
while (rs.next()) {
System.out.printf(
"Connected to Cloud Spanner at [%s]%n", rs.getTimestamp(1).toString());
}
}
}
}
```


## Troubleshooting
Expand Down Expand Up @@ -101,7 +123,7 @@ Java 8 OSX | [![Kokoro CI][kokoro-badge-image-3]][kokoro-badge-link-3]
Java 8 Windows | [![Kokoro CI][kokoro-badge-image-4]][kokoro-badge-link-4]
Java 11 | [![Kokoro CI][kokoro-badge-image-5]][kokoro-badge-link-5]

[product-docs]: https://cloud.google.com/pubsub/docs/
[product-docs]: https://cloud.google.com/spanner/docs/use-oss-jdbc
[javadocs]: https://googleapis.dev/java/google-cloud-spanner-jdbc/latest/index.html
[kokoro-badge-image-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-spanner-jdbc/java7.svg
[kokoro-badge-link-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-spanner-jdbc/java7.html
Expand Down