Lee rangos de fila (HBase)
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Lee filas con varios rangos.
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Muestra de código
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[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Información o código de muestra incorrectos","incorrectInformationOrSampleCode","thumb-down"],["Faltan la información o los ejemplos que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis content demonstrates how to read a range of rows in a Bigtable table using Java code.\u003c/p\u003e\n"],["\u003cp\u003eThe code provided uses a key range to specify the start and stop rows for the read operation.\u003c/p\u003e\n"],["\u003cp\u003eAuthentication is required to connect to Bigtable, and setting up Application Default Credentials is recommended.\u003c/p\u003e\n"],["\u003cp\u003eThe code initializes a Bigtable client, defines a scan operation with start and stop row keys, and then iterates through the resulting rows.\u003c/p\u003e\n"],["\u003cp\u003eThe content references further documentation for reading data, setting up the client library and sample browser.\u003c/p\u003e\n"]]],[],null,["Read rows with multiple ranges.\n\nExplore further\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Read examples](/bigtable/docs/reading-data)\n\nCode sample \n\nJava\n\n\nTo learn how to install and use the client library for Bigtable, see\n[Bigtable client libraries](/bigtable/docs/reference/libraries).\n\n\nTo authenticate to Bigtable, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n\n /**\n * Example of reading a range of rows using a key range.\n */\n public static void readRowRange() {\n // TODO(developer): Replace these variables before running the sample.\n String projectId = \"my-project-id\";\n String instanceId = \"my-instance-id\";\n String tableId = \"mobile-time-series\";\n readRowRange(projectId, instanceId, tableId);\n }\n\n public static void readRowRange(String projectId, String instanceId, String tableId) {\n // Initialize client that will be used to send requests. This client only needs to be created\n // once, and can be reused for multiple requests.\n try (Connection connection = BigtableConfiguration.connect(projectId, instanceId)) {\n Table table = connection.getTable(TableName.valueOf(tableId));\n\n Scan rangeQuery =\n new Scan()\n .withStartRow(Bytes.toBytes(\"phone#4c410523#20190501\"))\n .withStopRow(Bytes.toBytes(\"phone#4c410523#201906201\"));\n\n ResultScanner rows = table.getScanner(rangeQuery);\n\n for (Result row : rows) {\n printRow(row);\n }\n\n } catch (IOException e) {\n System.out.println(\n \"Unable to initialize service client, as a network error occurred: \\n\" + e.toString());\n }\n }\n\nWhat's next\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=bigtable)."]]