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Puedes usar cualquier biblioteca compatible con Java con un tiempo de ejecución de Java compatible para escribir funciones de Cloud Run en Java. Puedes usar Maven o Gradle para gestionar las dependencias de tus funciones de Java Cloud Run.
Declarar y gestionar dependencias
Puedes declarar y gestionar dependencias con Maven o Gradle:
Para gestionar las dependencias con Maven, sigue estos pasos:
Especifica las dependencias en la sección <dependencies> del archivo pom.xml de tu proyecto.
Para gestionar la dependencia de tu proyecto en Maven, puedes usar Maven Wrapper. Si no usas Maven Wrapper, Cloud Run Functions usará de forma predeterminada una versión reciente de Maven al ejecutar gcloud functions deploy.
Para gestionar las dependencias con Gradle, debes especificarlas en el archivo
build.gradle
de tu proyecto.
Functions Framework
es una dependencia obligatoria para todas las funciones. Aunque Cloud Run Functions lo instala en tu nombre cuando se crea la función, te recomendamos que lo incluyas como dependencia explícita para mayor claridad.
Si tu función depende de dependencias privadas, te recomendamos que hagas una réplica de functions-framework en tu registro privado. Incluye functions-framework como dependencia de tu función para evitar instalar el paquete desde Internet.
Usar las bibliotecas de cliente de Google Cloud para Java
Ten en cuenta que este archivo build.gradle incluye una tarea personalizada para ayudarte a ejecutar funciones de forma local.
applyplugin:'java'repositories{jcenter()mavenCentral()}configurations{invoker}dependencies{// Every function needs this dependency to get the Functions Framework API.compileOnly'com.google.cloud.functions:functions-framework-api:1.1.0'// To run function locally using Functions Framework's local invokerinvoker'com.google.cloud.functions.invoker:java-function-invoker:1.3.1'// These dependencies are only used by the tests.testImplementation'com.google.cloud.functions:functions-framework-api:1.1.0'testImplementation'junit:junit:4.13.2'testImplementation'com.google.truth:truth:1.4.0'testImplementation'org.mockito:mockito-core:5.10.0'}// Register a "runFunction" task to run the function locallytasks.register("runFunction",JavaExec){main='com.google.cloud.functions.invoker.runner.Invoker'classpath(configurations.invoker)inputs.files(configurations.runtimeClasspath,sourceSets.main.output)args('--target',project.findProperty('run.functionTarget')?:'','--port',project.findProperty('run.port')?:8080)doFirst{args('--classpath',files(configurations.runtimeClasspath,sourceSets.main.output).asPath)}}
[[["Es fácil de entender","easyToUnderstand","thumb-up"],["Me ofreció una solución al problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Es difícil de entender","hardToUnderstand","thumb-down"],["La información o el código de muestra no son correctos","incorrectInformationOrSampleCode","thumb-down"],["Me faltan las muestras o la información que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-08-21 (UTC)."],[],[],null,["# Specify dependencies in Java\n\nYou can use any Java compatible libraries with a\n[supported Java runtime](/run/docs/configuring/services/runtime-base-images#java)\nto write Cloud Run functions in Java. You can use either\n[Maven](https://maven.apache.org) or [Gradle](https://gradle.org) to manage\ndependencies for your Java Cloud Run functions.\n\nDeclaring and managing dependencies\n-----------------------------------\n\nYou can declare and manage dependencies using either Maven or Gradle:\n\n- To manage dependencies using Maven:\n\n - Specify the dependencies in the `\u003cdependencies\u003e` section inside the\n [`pom.xml`](http://maven.apache.org/guides/introduction/introduction-to-the-pom.html)\n file of your project.\n\n - To manage your project's dependency on Maven itself, you can use the\n [Maven Wrapper](https://maven.apache.org/wrapper/). If you don't use the\n Maven Wrapper, Cloud Run functions defaults to using a recent\n version of Maven when running [`gcloud functions deploy`](/sdk/gcloud/reference/functions/deploy).\n\n- To manage dependencies using Gradle, you specify the dependencies in the\n [`build.gradle`](https://docs.gradle.org/current/userguide/tutorial_using_tasks.html)\n file of your project.\n\nThe [Functions Framework](https://github.com/GoogleCloudPlatform/functions-framework-java)\nis a required dependency for all functions. Although\nCloud Run functions installs it on your behalf when the function\nis created, we recommend that you include it as an explicit dependency for\nclarity.\n\nIf your\nfunction relies on private dependencies, we recommend that you\nmirror `functions-framework` to your private registry. Include the mirrored\n`functions-framework` as a dependency to your function to avoid installing the\npackage from the public internet.\n\nUsing the Google Cloud Client Libraries for Java\n------------------------------------------------\n\n[Google Cloud Client Libraries for\nJava](https://github.com/googleapis/google-cloud-java) provide idiomatic access\nto Google Cloud services. To use a library, declare it as a dependency.\n\nTypically you only declare dependencies on the specific libraries that your\nfunction needs. For example: \n\n### Maven\n\n \u003cproject xmlns=\"http://maven.apache.org/POM/4.0.0\"\n xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n xsi:schemaLocation=\"http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd\"\u003e\n \u003cmodelVersion\u003e4.0.0\u003c/modelVersion\u003e\n\n \u003cgroupId\u003ecom.example.functions\u003c/groupId\u003e\n \u003cartifactId\u003efunctions-hello-world\u003c/artifactId\u003e\n \u003cversion\u003e1.0.0-SNAPSHOT\u003c/version\u003e\n \u003cproperties\u003e\n \u003cmaven.compiler.target\u003e11\u003c/maven.compiler.target\u003e\n \u003cmaven.compiler.source\u003e11\u003c/maven.compiler.source\u003e\n \u003c/properties\u003e\n\n \u003cdependencies\u003e\n \u003c!-- Required for Function primitives --\u003e\n \u003cdependency\u003e\n \u003cgroupId\u003ecom.google.cloud.functions\u003c/groupId\u003e\n \u003cartifactId\u003efunctions-framework-api\u003c/artifactId\u003e\n \u003cversion\u003e1.1.0\u003c/version\u003e\n \u003cscope\u003eprovided\u003c/scope\u003e\n \u003c/dependency\u003e\n \u003c/dependencies\u003e\n\n \u003cbuild\u003e\n \u003cplugins\u003e\n \u003cplugin\u003e\n \u003c!--\n Google Cloud Functions Framework Maven plugin\n\n This plugin allows you to run Cloud Functions Java code\n locally. Use the following terminal command to run a\n given function locally:\n\n mvn function:run -Drun.functionTarget=your.package.yourFunction\n --\u003e\n \u003cgroupId\u003ecom.google.cloud.functions\u003c/groupId\u003e\n \u003cartifactId\u003efunction-maven-plugin\u003c/artifactId\u003e\n \u003cversion\u003e0.11.0\u003c/version\u003e\n \u003cconfiguration\u003e\n \u003cfunctionTarget\u003efunctions.HelloWorld\u003c/functionTarget\u003e\n \u003c/configuration\u003e\n \u003c/plugin\u003e\n \u003c/plugins\u003e\n \u003c/build\u003e\n \u003c/project\u003e\n\n### Gradle\n\nNote that this `build.gradle` file includes a custom task to help you run\nfunctions locally. \n\n apply plugin: 'java'\n\n repositories {\n jcenter()\n mavenCentral()\n }\n configurations {\n invoker\n }\n\n dependencies {\n // Every function needs this dependency to get the Functions Framework API.\n compileOnly 'com.google.cloud.functions:functions-framework-api:1.1.0'\n\n // To run function locally using Functions Framework's local invoker\n invoker 'com.google.cloud.functions.invoker:java-function-invoker:1.3.1'\n\n // These dependencies are only used by the tests.\n testImplementation 'com.google.cloud.functions:functions-framework-api:1.1.0'\n testImplementation 'junit:junit:4.13.2'\n testImplementation 'com.google.truth:truth:1.4.0'\n testImplementation 'org.mockito:mockito-core:5.10.0'\n\n }\n\n // Register a \"runFunction\" task to run the function locally\n tasks.register(\"runFunction\", JavaExec) {\n main = 'com.google.cloud.functions.invoker.runner.Invoker'\n classpath(configurations.invoker)\n inputs.files(configurations.runtimeClasspath, sourceSets.main.output)\n args(\n '--target', project.findProperty('run.functionTarget') ?: '',\n '--port', project.findProperty('run.port') ?: 8080\n )\n doFirst {\n args('--classpath', files(configurations.runtimeClasspath, sourceSets.main.output).asPath)\n }\n }"]]