Java 8은 지원이 종료되었으며 2026년 1월 31일에 지원 중단됩니다. 지원 중단 후에는 조직에서 이전에 조직 정책을 사용하여 레거시 런타임의 배포를 다시 사용 설정한 경우에도 Java 8 애플리케이션을 배포할 수 없습니다. 기존 Java 8 애플리케이션은 지원 중단 날짜 이후에도 계속 실행되고 트래픽을 수신합니다. 지원되는 최신 Java 버전으로 마이그레이션하는 것이 좋습니다.
REGION_ID는 앱을 만들 때 선택한 리전을 기준으로 Google에서 할당하는 축약된 코드입니다. 일부 리전 ID는 일반적으로 사용되는 국가 및 주/도 코드와 비슷하게 표시될 수 있지만 코드는 국가 또는 주/도와 일치하지 않습니다. 2020년 2월 이후에 생성된 앱의 경우 REGION_ID.r이 App Engine URL에 포함됩니다. 이 날짜 이전에 만든 기존 앱의 경우 URL에서 리전 ID는 선택사항입니다.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["이해하기 어려움","hardToUnderstand","thumb-down"],["잘못된 정보 또는 샘플 코드","incorrectInformationOrSampleCode","thumb-down"],["필요한 정보/샘플이 없음","missingTheInformationSamplesINeed","thumb-down"],["번역 문제","translationIssue","thumb-down"],["기타","otherDown","thumb-down"]],["최종 업데이트: 2025-09-04(UTC)"],[[["\u003cp\u003eThe REGION_ID is a code assigned by Google based on the region selected when creating an app, included in App Engine URLs for apps created after February 2020.\u003c/p\u003e\n"],["\u003cp\u003eApp Engine services can communicate through targeted HTTP requests using URLs that include the service or version ID and project ID.\u003c/p\u003e\n"],["\u003cp\u003eData can be shared across databases, App Engine apps, and external applications using methods outlined in the "Understanding Data and File Storage" documentation.\u003c/p\u003e\n"],["\u003cp\u003eWithin the same Google Cloud project, App Engine services can share a memcache instance and collaborate using Task Queues via specific APIs.\u003c/p\u003e\n"],["\u003cp\u003eCertain URL paths are restricted and cannot be used, including those ending with \u003ccode\u003e/eventlog\u003c/code\u003e, starting with \u003ccode\u003e/_ah/\u003c/code\u003e, and some ending with \u003ccode\u003ez\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,["# Communicating Between Your Services\n\n### Region ID\n\nThe \u003cvar translate=\"no\"\u003eREGION_ID\u003c/var\u003e is an abbreviated code that Google assigns\nbased on the region you select when you create your app. The code does not\ncorrespond to a country or province, even though some region IDs may appear\nsimilar to commonly used country and province codes. For apps created after\nFebruary 2020, \u003cvar translate=\"no\"\u003eREGION_ID\u003c/var\u003e`.r` is included in\nApp Engine URLs. For existing apps created before this date, the\nregion ID is optional in the URL.\n\nLearn more\n[about region IDs](/appengine/docs/legacy/standard/java/how-requests-are-routed#region-id). \nOK\n\nYou can use various methods to communicate between your App Engine\nservices or with other services, including Google Cloud services and\nexternal applications.\n\nThe simplest approach for communicating with your App Engine service is\nto send targeted HTTP requests, where the URL includes the name or ID of a\nresource. For example, you can include the ID of a service or version that you\nwant to target, in addition to the corresponding Google Cloud project ID: \n\n\n https://\u003cvar translate=\"no\"\u003eVERSION\u003c/var\u003e-dot-\u003cvar translate=\"no\"\u003eSERVICE\u003c/var\u003e-dot-\u003cvar translate=\"no\"\u003ePROJECT_ID\u003c/var\u003e.\u003cvar translate=\"no\"\u003e\u003ca href=\"#appengine-urls\" style=\"border-bottom: 1px dotted #999\" class=\"devsite-dialog-button\" data-modal-dialog-id=\"regional_url\" track-type=\"progressiveHelp\" track-name=\"modalHelp\" track-metadata-goal=\"regionalURL\"\u003eREGION_ID\u003c/a\u003e\u003c/var\u003e.r.appspot.com\n\nFor details about targeting your services, including how to define HTTPS URLs,\nsee [How Requests are\nRouted](/appengine/docs/legacy/standard/java/how-requests-are-routed).\nTo authorize the requests between your services and other Google Cloud\nservices, see [Setting Up Authentication for Server to Server Production\nApplications](/docs/authentication/production).\n\nTo share data across databases and your App Engine app or some other\nexternal application, see\n\n[Understanding Data and File\nStorage](/appengine/docs/legacy/standard/java/using-third-party-databases).\n\n\nIn the standard environment, you can also pass requests between services and\nfrom services to external endpoints using the\n[URL Fetch](/appengine/docs/legacy/standard/java/issue-requests) API.\n\nAdditionally, services in the standard environment that reside within the same\nGoogle Cloud project can also use one of the App Engine APIs for the\nfollowing tasks:\n\n- Share a single [memcache](/appengine/docs/legacy/standard/java/memcache) instance.\n- Collaborate by assigning work between services through [Task Queues](/appengine/docs/legacy/standard/java/taskqueue).\n\nReserved URL paths\n------------------\n\nIt is not possible to use the following URL paths:\n\n- Paths ending with `/eventlog`\n- Paths starting with `/_ah/`\n- Some paths ending with `z`"]]
