import com.couchbase.client.java.Cluster; import com.couchbase.client.java.CouchbaseCluster; import com.couchbase.client.java.document.JsonDocument; import com.couchbase.client.java.document.json.JsonObject; public class CouchbaseExample { public static void main(String[] args) { Cluster cluster = CouchbaseCluster.create("localhost"); Bucket bucket = cluster.openBucket("my_bucket"); JsonObject documentContent = JsonObject.create().put("name", "John").put("age", 30); JsonDocument document = JsonDocument.create("user:1", documentContent); bucket.upsert(document); JsonDocument fetchedDocument = bucket.get("user:1"); System.out.println(fetchedDocument.content()); cluster.disconnect(); } }