Répertorier les connexions
Restez organisé à l'aide des collections
Enregistrez et classez les contenus selon vos préférences.
Répertoriez toutes les métadonnées de connexion d'un projet.
En savoir plus
Pour obtenir une documentation détaillée incluant cet exemple de code, consultez la page suivante :
Exemple de code
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
[[["Facile à comprendre","easyToUnderstand","thumb-up"],["J'ai pu résoudre mon problème","solvedMyProblem","thumb-up"],["Autre","otherUp","thumb-up"]],[["Difficile à comprendre","hardToUnderstand","thumb-down"],["Informations ou exemple de code incorrects","incorrectInformationOrSampleCode","thumb-down"],["Il n'y a pas l'information/les exemples dont j'ai besoin","missingTheInformationSamplesINeed","thumb-down"],["Problème de traduction","translationIssue","thumb-down"],["Autre","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis code sample demonstrates how to list all connection metadata within a specified project and location using the BigQuery Connection Service Client in Java.\u003c/p\u003e\n"],["\u003cp\u003eThe code requires setting up Application Default Credentials for authentication and uses the \u003ccode\u003eConnectionServiceClient\u003c/code\u003e to send a \u003ccode\u003eListConnectionsRequest\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe output iterates through and prints the names of the connection metadata found in the project and location.\u003c/p\u003e\n"],["\u003cp\u003eThe user needs to replace placeholder values in the code, specifically the \u003ccode\u003eprojectId\u003c/code\u003e and the \u003ccode\u003elocation\u003c/code\u003e, with their own information before running the sample.\u003c/p\u003e\n"],["\u003cp\u003eIt directs users to the appropriate documentation for setting up BigQuery and working with connections, as well as to the Google Cloud sample browser for other code examples.\u003c/p\u003e\n"]]],[],null,["# List connections\n\nList all connection metadata in a project.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Manage connections](/bigquery/docs/working-with-connections)\n\nCode sample\n-----------\n\n### Java\n\n\nBefore trying this sample, follow the Java setup instructions in the\n[BigQuery quickstart using\nclient libraries](/bigquery/docs/quickstarts/quickstart-client-libraries).\n\n\nFor more information, see the\n[BigQuery Java API\nreference documentation](/java/docs/reference/google-cloud-bigquery/latest/overview).\n\n\nTo authenticate to BigQuery, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for client libraries](/bigquery/docs/authentication#client-libs).\n\n import com.google.cloud.bigquery.connection.v1.https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigquery.connection.v1.ListConnectionsRequest.html;\n import com.google.cloud.bigquery.connection.v1.https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigquery.connection.v1.LocationName.html;\n import com.google.cloud.bigqueryconnection.v1.https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigqueryconnection.v1.ConnectionServiceClient.html;\n import java.io.IOException;\n\n // Sample to get list of connections\n public class ListConnections {\n\n public static void main(String[] args) throws IOException {\n // TODO(developer): Replace these variables before running the sample.\n String projectId = \"MY_PROJECT_ID\";\n String location = \"MY_LOCATION\";\n listConnections(projectId, location);\n }\n\n static void listConnections(String projectId, String location) throws IOException {\n try (https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigqueryconnection.v1.ConnectionServiceClient.html client = https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigqueryconnection.v1.ConnectionServiceClient.html.create()) {\n https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigquery.connection.v1.LocationName.html parent = https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigquery.connection.v1.LocationName.html.of(projectId, location);\n int pageSize = 10;\n https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigquery.connection.v1.ListConnectionsRequest.html request =\n https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigquery.connection.v1.ListConnectionsRequest.html.newBuilder()\n .setParent(parent.https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigquery.connection.v1.LocationName.html#com_google_cloud_bigquery_connection_v1_LocationName_toString__())\n .https://cloud.google.com/java/docs/reference/google-cloud-bigqueryconnection/latest/com.google.cloud.bigquery.connection.v1.ListConnectionsRequest.Builder.html#com_google_cloud_bigquery_connection_v1_ListConnectionsRequest_Builder_setPageSize_int_(pageSize)\n .build();\n client\n .listConnections(request)\n .iterateAll()\n .forEach(con -\u003e System.out.println(\"Connection Id :\" + con.getName()));\n }\n }\n }\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=bigqueryconnection)."]]