Java 8 已达到支持终止期限，并将于 2026 年 1 月 31 日
弃用。弃用后，您将无法部署 Java 8 应用，即使您的组织之前曾使用组织政策重新启用旧版运行时的部署，也无法部署。现有的 Java 8 应用在
弃用日期之后将继续运行并接收流量。我们建议您
迁移到最新支持的 Java 版本。
Google App Engine Java 8 标准环境文档
App Engine 标准环境可让您轻松构建和部署应用，保证应用在繁重负载和大量数据下能可靠运行。您的应用在其自有的安全可靠的环境中运行，该环境与服务器的硬件、操作系统或物理位置无关。
了解详情
获享 $300 免费赠金开始概念验证
-
体验 Gemini 2.0 Flash Thinking
-
免费使用热门产品（包括 AI API 和 BigQuery）的每月用量
-
不会自动收费，无需承诺
继续探索 20 多种提供“始终免费”用量的产品
使用适用于常见应用场景（包括 AI API、虚拟机、数据仓库等）的 20 多种免费产品。
培训
培训和教程
App Engine：Qwik Start - Java
了解 Google Cloud 的价值，以及如何将云端解决方案整合到您的业务策略中。
使用场景
使用场景
控制对网站和应用的访问权限
了解如何控制用户对企业 Web 资源的访问权限。
企业
BeyondCorp
身份验证
App Engine
代码示例
代码示例
App Engine 示例 - Hello World
此示例演示了如何使用 Java 在 App Engine 标准环境中构建 Hello World 应用。
代码示例
代码示例
App Engine 示例 - Cloud Datastore
此示例演示了如何通过 Java 在 App Engine 标准环境中使用 Cloud Datastore API。
代码示例
代码示例
Google Cloud API Showcase：适用于 Java 8 的 App Engine 标准环境中的 BigQuery 和 Cloud Monitoring
此示例演示了如何通过 Java 在 App Engine 标准环境中使用 BigQuery 和 Cloud Monitoring。
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2025-09-04。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-09-04。"],[[["\u003cp\u003eApp Engine standard environment enables the creation and deployment of applications that are robust under heavy loads and with significant data.\u003c/p\u003e\n"],["\u003cp\u003eThe environment offers application security and reliability, independent of the underlying hardware, operating system, or physical server location.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation provides guides for various tasks, including scheduling tasks with Cron, setting up development, deploying apps, sending mail, and using tools like Apache Maven.\u003c/p\u003e\n"],["\u003cp\u003eReference materials include details on configuration files like \u003ccode\u003eweb.xml\u003c/code\u003e, \u003ccode\u003eappengine-web.xml\u003c/code\u003e, \u003ccode\u003ecron.xml\u003c/code\u003e, \u003ccode\u003equeue.xml\u003c/code\u003e, and \u003ccode\u003edispatch.yaml\u003c/code\u003e, as well as guidance on migrating from AppCfg to gcloud.\u003c/p\u003e\n"],["\u003cp\u003eResources are available for managing costs, understanding quotas and limits, troubleshooting, viewing release notes, and exploring different environments and serverless options, along with related training, use cases, and code samples.\u003c/p\u003e\n"]]],[],null,["# Google App Engine Java 8 Standard Environment documentation\n===========================================================\n\n[Read product documentation](/appengine/docs/legacy/standard/java/runtime)\nApp Engine standard environment makes it easy to build and deploy an application that\nruns reliably under heavy load and with large amounts of data.\nYour application runs within its own secure, reliable environment that is\nindependent of the hardware, operating system, or physical location of the\nserver.\n[Learn more](/appengine/docs/legacy/standard/java/an-overview-of-app-engine)\n[Get started for free](https://console.cloud.google.com/freetrial) \n\n#### Start your proof of concept with $300 in free credit\n\n- Get access to Gemini 2.0 Flash Thinking\n- Free monthly usage of popular products, including AI APIs and BigQuery\n- No automatic charges, no commitment \n[View free product offers](/free/docs/free-cloud-features#free-tier) \n\n#### Keep exploring with 20+ always-free products\n\n\nAccess 20+ free products for common use cases, including AI APIs, VMs, data warehouses,\nand more.\n\nDocumentation resources\n-----------------------\n\nFind quickstarts and guides, review key references, and get help with common issues. \nformat_list_numbered\n\n### Guides\n\n-\n\n [Scheduling Tasks With Cron for Java 8](/appengine/docs/legacy/standard/java/config/cron)\n\n-\n\n [Getting Started: Setting Up Your Development Environment](/appengine/docs/legacy/standard/java/building-app/environment-setup)\n\n-\n\n [Sending Mail with the Mail API](/appengine/docs/legacy/standard/java/mail/sending-mail-with-mail-api)\n\n-\n\n [Deploying a Java App](/appengine/docs/legacy/standard/java/tools/uploadinganapp)\n\n-\n\n [Using Apache Maven and the App Engine Plugin (Cloud SDK-based)](/appengine/docs/legacy/standard/java/using-maven)\n\n-\n\n [Creating, Retrieving, Updating, and Deleting Entities](/appengine/docs/legacy/standard/java/datastore/creating-entities)\n\n-\n\n [App Engine Maven Plugin (Cloud SDK-based) Goals and Parameters](/appengine/docs/legacy/standard/java/maven-reference)\n\nfind_in_page\n\n### Reference\n\n-\n\n [The Deployment Descriptor: web.xml](/appengine/docs/legacy/standard/java/config/webxml)\n\n-\n\n [appengine-web.xml Reference](/appengine/docs/legacy/standard/java/config/appref)\n\n-\n\n [Migrating from AppCfg to gcloud Command Line](/appengine/docs/legacy/standard/java/tools/migrating-from-appcfg-to-gcloud)\n\n-\n\n [Configuration Files](/appengine/docs/legacy/standard/java/configuration-files)\n\n-\n\n [Configuring Datastore Indexes with index.yaml](/appengine/docs/legacy/standard/java/configuring-datastore-indexes-with-index-yaml)\n\n-\n\n [cron.xml Reference for App Engine SDK-Based Tooling](/appengine/docs/legacy/standard/java/config/cronref)\n\n-\n\n [queue.xml Reference](/appengine/docs/legacy/standard/java/config/queueref)\n\n-\n\n [dispatch.yaml Configuration File](/appengine/docs/legacy/standard/java/reference/dispatch-yaml)\n\ninfo\n\n### Resources\n\n-\n\n [Java release notes](/appengine/docs/legacy/standard/java/release-notes)\n\n-\n\n [Pricing](/appengine/pricing)\n\n-\n\n [Quotas and limits](/appengine/docs/legacy/standard/java/quotas)\n\n-\n\n [Managing costs](/appengine/docs/legacy/standard/java/managing-costs)\n\n-\n\n [Troubleshooting](/appengine/docs/legacy/standard/java/troubleshooting)\n\n-\n\n [Choosing an environment](/appengine/docs/the-appengine-environments)\n\n-\n\n [Choosing a serverless option](/serverless)\n\nRelated resources\n-----------------\n\nTraining and tutorials \nUse cases \nCode samples \nExplore self-paced training, use cases, reference architectures, and code samples with examples of how to use and connect Google Cloud services. Training \nTraining and tutorials\n\n### App Engine: Qwik Start - Java\n\n\nLearn the value of Google Cloud and how to incorporate cloud-based solutions into your business strategies.\n\n\n[Learn more](https://www.cloudskillsboost.google/focuses/951?parent=catalog) \nUse case \nUse cases\n\n### Controlling Access to Websites and Apps\n\n\nLearn how to control user access to enterprise web resources.\n\nEnterprise BeyondCorp Authentication App Engine\n\n\u003cbr /\u003e\n\n[Learn more](/solutions/authenticating-web-users) \nCode sample \nCode Samples\n\n### App Engine sample - Hello World\n\n\nThis sample demonstrates how build a Hello World app on App Engine standard environment with Java.\n\n\n[Open GitHub\narrow_forward](https://github.com/GoogleCloudPlatform/java-docs-samples/tree/master/appengine-java8/helloworld) \nCode sample \nCode Samples\n\n### App Engine sample - Cloud Datastore\n\n\nThis sample demonstrates how to use the Cloud Datastore API on App Engine standard environment with Java.\n\n\n[Open GitHub\narrow_forward](https://github.com/GoogleCloudPlatform/java-docs-samples/tree/master/appengine-java8/guestbook-cloud-datastore) \nCode sample \nCode Samples\n\n### Google Cloud API Showcase: BigQuery \\& Cloud Monitoring in App Engine standard environment for Java 8\n\n\nThis sample demonstrates how to use BigQuery and Cloud Monitoring on App Engine standard environment with Java.\n\n\n[Open GitHub\narrow_forward](https://github.com/GoogleCloudPlatform/java-docs-samples/tree/master/appengine-java8/bigquery)\n\nRelated videos\n--------------"]]
