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Eclipse와 함께 app 엔진을 사용하여 샘플 프로그램을 실행하려고합니다. 이 사이트의 지침에 따라 Google 플러그인을 설치합니다. https://developers.google.com/appengine/docs/java/gettingstarted/installingappengine with eclipse
자습서를 따르면됩니다. 하지만 내 애플 리케이션이 어떤 이유로 실행되지 않습니다. 나는 다음과 같은 실수를 범한다.
14/12/2012 14:13:41 com.google.apphosting.utils.jetty.JettyLogger info
INFO: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger
14/12/2012 14:13:41 com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
INFO: Successfully processed C:\Users\rona\workspace\Guestbook\war\WEB-INF/appengine-web.xml
14/12/2012 14:13:41 com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml
SEVERE: Received exception processing C:\Users\rona\workspace\Guestbook\war\WEB-INF/appengine-web.xml
com.google.apphosting.utils.config.AppEngineConfigException: appengine-web.xml does not contain a <threadsafe> element.
See http://code.google.com/appengine/docs/java/config/appconfig.html#Using_Concurrent_Requests for more information.
You probably want to enable concurrent requests.
at com.google.apphosting.utils.config.AppEngineWebXmlReader.readAppEngineWebXml(AppEngineWebXmlReader.java:79)
at com.google.apphosting.utils.config.EarHelper.readWebModule(EarHelper.java:130)
at com.google.appengine.tools.development.AbstractContainerService.loadAppEngineWebXml(AbstractContainerService.java:334)
at com.google.appengine.tools.development.JettyContainerService.initContext(JettyContainerService.java:160)
at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:227)
at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:157)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:333)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:269)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:245)
com.google.apphosting.utils.config.AppEngineConfigException: Invalid appengine-web.xml(C:\Users\rona\workspace\Guestbook\war\WEB-INF/appengine-web.xml) - appengine-web.xml does not contain a <threadsafe> element.
See http://code.google.com/appengine/docs/java/config/appconfig.html#Using_Concurrent_Requests for more information.
You probably want to enable concurrent requests.
at com.google.apphosting.utils.config.EarHelper.readWebModule(EarHelper.java:132)
at com.google.appengine.tools.development.AbstractContainerService.loadAppEngineWebXml(AbstractContainerService.java:334)
at com.google.appengine.tools.development.JettyContainerService.initContext(JettyContainerService.java:160)
at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:227)
at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:157)
at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:333)
at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48)
at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:269)
at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:245)
코드는 Google 개발자가 정확히 동일하게 복사 한 것입니다. 다른 컴퓨터에서 실행되는 프로그램을 압니다. 제 설치 과정에서 무언가가 작동하지 않습니다.
<threadsafe>true</threadsafe>
명시 적으로 응용 프로그램이 스레드 안전 방식으로 설계되어 있는지 기대치를 설정하는 것이 필수입니다 :