如何使用java从cocuhbase批量选择和更新文档？

Cluster cluster = Cluster.connect("couchbase://localhost", "username", "password");

Bucket bucket = cluster.bucket("bucketName");

String query = "SELECT * FROM bucketName WHERE condition";
N1qlQuery n1qlQuery = N1qlQuery.simple(query);

N1qlQueryResult result = bucket.query(n1qlQuery);
for (N1qlQueryRow row : result) {
    JsonObject document = row.value();
    // 处理每个文档
}

JsonDocument document = JsonDocument.create("documentId", JsonObject.create().put("key", "value"));
bucket.upsert(document);

List<JsonDocument> documents = new ArrayList<>();
documents.add(JsonDocument.create("documentId1", JsonObject.create().put("key1", "value1")));
documents.add(JsonDocument.create("documentId2", JsonObject.create().put("key2", "value2")));
bucket.upsertAll(documents);