Ошибка при использовании google objectify

Я получаю ошибку при использовании objectify. На самом деле я использую его в очень простом приложении с пружинным основанием, но не получаю правильный способ сделать то же самое. , чтобы сохранить его простым, я не использую ни один сервис/слой dao.Ошибка при использовании google objectify

Модель:

package com.tut.yudi.model; 

import com.googlecode.objectify.annotation.Entity; 
import com.googlecode.objectify.annotation.Id; 
import com.googlecode.objectify.annotation.Index; 

//import java.util.Date; 
import java.io.Serializable; 

@Entity 
public class Subject implements Serializable { 

    private static final long serialVersionUID = 1L; 
    //private long subjectId; 

    @Id 
    @Index 
    private String subjectName; 
    private int subjectRank; 
    private char status; 

    public String getSubjectName() { 
     return subjectName; 
    } 
    public void setSubjectName(String subjectName) { 
     this.subjectName = subjectName; 
    } 
    public int getSubjectRank() { 
     return subjectRank; 
    } 
    public void setSubjectRank(int subjectRank) { 
     this.subjectRank = subjectRank; 
    } 
    public char getStatus() { 
     return status; 
    } 
    public void setStatus(char status) { 
     this.status = status; 
    } 

}

класс OfyService:

package com.tut.yudi.common.dao; 

import com.googlecode.objectify.Objectify; 
import com.googlecode.objectify.ObjectifyFactory; 
import com.googlecode.objectify.ObjectifyService; 
import com.tut.yudi.model.Subject; 

public class OfyService { 
    static { 
     factory().register(Subject.class); 
     //ObjectifyService.register(Subject.class); --also doesn't work 
    } 

    public static Objectify ofy() { 
     return ObjectifyService.ofy(); 
    } 

    public static ObjectifyFactory factory() { 
     return ObjectifyService.factory(); 
    } 
}

мой контроллер:

package com.tut.yudi.controller; 

import static com.tut.yudi.common.dao.OfyService.ofy; 
import org.springframework.stereotype.Controller; 
import org.springframework.web.bind.annotation.RequestMapping; 

import com.tut.yudi.controller.Hello; 
import com.tut.yudi.model.Subject; 

import java.util.logging.Logger; 

@Controller 
public class Hello 
{ 
    protected static Logger logger = Logger.getLogger(Hello.class.getName()); 

    @RequestMapping("/") 
    public String home() 
    { 
     //sop(); 
     return "a"; 
    } 

    @RequestMapping(value = "/hello") 
    public String hello() 
    { 
     //sop(); 

     //some comment 

     Subject subject = new Subject(); 
     subject.setSubjectName("JAVA"); 
     subject.setSubjectRank(1); 
     subject.setStatus('A'); 
     System.out.println("Model object created..."); 

     //some coment 
     ofy().save().entity(subject).now(); 
     System.out.println("object created...."); 
     return "b"; 
    } 

}

Вот журналы:

Dec 24, 2013 9:15:58 PM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml 
INFO: Successfully processed /var/vcap.local/dea/apps/app-g7u2pbf8emc4gvmc-0-df6c037b5f628879778de0427da1f7e4/app/WEB-INF/appengine-web.xml 
Dec 24, 2013 9:15:58 PM com.google.apphosting.utils.config.AbstractConfigXmlReader readConfigXml 
INFO: Successfully processed /var/vcap.local/dea/apps/app-g7u2pbf8emc4gvmc-0-df6c037b5f628879778de0427da1f7e4/app/WEB-INF/web.xml 
Dec 24, 2013 9:15:58 PM com.google.appengine.tools.development.SystemPropertiesManager setSystemProperties 
INFO: Overwriting system property key 'java.util.logging.config.file', value '/var/vcap.local/dea/apps/app-g7u2pbf8emc4gvmc-0-df6c037b5f628879778de0427da1f7e4/appengine-java-sdk/config/sdk/logging.properties' with value 'WEB-INF/logging.properties' from '/var/vcap.local/dea/apps/app-g7u2pbf8emc4gvmc-0-df6c037b5f628879778de0427da1f7e4/app/WEB-INF/appengine-web.xml' 
Dec 24, 2013 9:15:58 PM com.google.apphosting.utils.jetty.JettyLogger info 
INFO: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger 
Dec 24, 2013 9:15:59 PM com.google.appengine.tools.development.IsolatedAppClassLoader checkWorkingDirectory 
WARNING: Your working directory, (/var/vcap.local/dea/apps/app-g7u2pbf8emc4gvmc-0-df6c037b5f628879778de0427da1f7e4) is not equal to your 
web application root (/var/vcap.local/dea/apps/app-g7u2pbf8emc4gvmc-0-df6c037b5f628879778de0427da1f7e4/app) 
You will not be able to access files from your working directory on the production server. 

Dec 24, 2013 9:15:59 PM com.google.apphosting.utils.jetty.JettyLogger info 
INFO: jetty-6.1.x 
Dec 24, 2013 9:16:20 PM com.google.appengine.tools.development.ApiProxyLocalImpl log 
INFO: javax.servlet.ServletContext log: Initializing Spring root WebApplicationContext 
log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader). 
log4j:WARN Please initialize the log4j system properly. 
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. 
Dec 24, 2013 9:16:27 PM com.google.appengine.tools.development.ApiProxyLocalImpl log 
INFO: javax.servlet.ServletContext log: Initializing Spring FrameworkServlet 'spring' 
Dec 24, 2013 9:16:27 PM com.google.apphosting.utils.jetty.JettyLogger info 
INFO: Started [email protected]:36886 
Dec 24, 2013 9:16:27 PM com.google.appengine.tools.development.AbstractServer startup 
INFO: Server default is running at http://localhost:36886/ 
Dec 24, 2013 9:16:27 PM com.google.appengine.tools.development.AbstractServer startup 
INFO: The admin console is running at http://localhost:36886/_ah/admin 
Dec 24, 2013 9:16:27 PM com.google.appengine.tools.development.DevAppServerImpl start 
INFO: Dev App Server is now running 
Dec 24, 2013 9:17:22 PM com.google.apphosting.utils.jetty.JettyLogger warn 
WARNING: /hello 
java.lang.ExceptionInInitializerError 
    at java.lang.Class.forName0(Native Method) 
    at java.lang.Class.forName(Class.java:186) 
    at com.google.appengine.tools.development.agent.runtime.RuntimeHelper.checkRestricted(RuntimeHelper.java:70) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.checkRestricted(Runtime.java:64) 
    at com.tut.yudi.controller.Hello.hello(Hello.java:38) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:616) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:115) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) 
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) 
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936) 
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) 
    at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:123) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectRequest(DevAppServerServersFilter.java:369) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectServerRequest(DevAppServerServersFilter.java:352) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doFilter(DevAppServerServersFilter.java:115) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:94) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:421) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:326) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) 
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) 
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) 
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) 
Caused by: java.lang.NullPointerException 
    at java.lang.Class.isAssignableFrom(Native Method) 
    at com.googlecode.objectify.impl.TypeUtils.isAssignableFrom(TypeUtils.java:179) 
    at com.googlecode.objectify.impl.translate.NumberTranslatorFactory.create(NumberTranslatorFactory.java:25) 
    at com.googlecode.objectify.impl.translate.NumberTranslatorFactory.create(NumberTranslatorFactory.java:18) 
    at com.googlecode.objectify.impl.translate.TranslatorRegistry.create(TranslatorRegistry.java:90) 
    at com.googlecode.objectify.impl.translate.ClassTranslator.(ClassTranslator.java:52) 
    at com.googlecode.objectify.impl.translate.EntityClassTranslator.(EntityClassTranslator.java:46) 
    at com.googlecode.objectify.impl.Transmog.(Transmog.java:49) 
    at com.googlecode.objectify.impl.ConcreteEntityMetadata.(ConcreteEntityMetadata.java:58) 
    at com.googlecode.objectify.impl.Registrar.register(Registrar.java:74) 
    at com.googlecode.objectify.ObjectifyFactory.register(ObjectifyFactory.java:180) 
    at com.tut.yudi.common.dao.OfyService.(OfyService.java:10) 
    ... 58 more 
Dec 24, 2013 9:17:22 PM com.google.apphosting.utils.jetty.JettyLogger warn 
WARNING: Nested in java.lang.ExceptionInInitializerError: 
java.lang.NullPointerException 
    at java.lang.Class.isAssignableFrom(Native Method) 
    at com.googlecode.objectify.impl.TypeUtils.isAssignableFrom(TypeUtils.java:179) 
    at com.googlecode.objectify.impl.translate.NumberTranslatorFactory.create(NumberTranslatorFactory.java:25) 
    at com.googlecode.objectify.impl.translate.NumberTranslatorFactory.create(NumberTranslatorFactory.java:18) 
    at com.googlecode.objectify.impl.translate.TranslatorRegistry.create(TranslatorRegistry.java:90) 
    at com.googlecode.objectify.impl.translate.ClassTranslator.(ClassTranslator.java:52) 
    at com.googlecode.objectify.impl.translate.EntityClassTranslator.(EntityClassTranslator.java:46) 
    at com.googlecode.objectify.impl.Transmog.(Transmog.java:49) 
    at com.googlecode.objectify.impl.ConcreteEntityMetadata.(ConcreteEntityMetadata.java:58) 
    at com.googlecode.objectify.impl.Registrar.register(Registrar.java:74) 
    at com.googlecode.objectify.ObjectifyFactory.register(ObjectifyFactory.java:180) 
    at com.tut.yudi.common.dao.OfyService.(OfyService.java:10) 
    at java.lang.Class.forName0(Native Method) 
    at java.lang.Class.forName(Class.java:186) 
    at com.google.appengine.tools.development.agent.runtime.RuntimeHelper.checkRestricted(RuntimeHelper.java:70) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.checkRestricted(Runtime.java:64) 
    at com.tut.yudi.controller.Hello.hello(Hello.java:38) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:616) 
    at com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:115) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132) 
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:686) 
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936) 
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:617) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
    at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) 
    at com.google.appengine.api.socket.dev.DevSocketFilter.doFilter(DevSocketFilter.java:74) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.ResponseRewriterFilter.doFilter(ResponseRewriterFilter.java:123) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:34) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:63) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:125) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectRequest(DevAppServerServersFilter.java:369) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doDirectServerRequest(DevAppServerServersFilter.java:352) 
    at com.google.appengine.tools.development.DevAppServerServersFilter.doFilter(DevAppServerServersFilter.java:115) 
    at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) 
    at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) 
    at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
    at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) 
    at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) 
    at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) 
    at com.google.appengine.tools.development.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:94) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:421) 
    at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
    at org.mortbay.jetty.Server.handle(Server.java:326) 
    at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) 
    at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) 
    at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547) 
    at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212) 
    at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) 
    at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409) 
    at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)

Спасибо.

источник

2013-12-24 user2769605

Есть несколько вещей, которые вы должны проверить:

Исключение связано с обработкой объективировать в примитивных типов в вашем Subject сущности, так что я изменил бы использовать Integer и Character (вместо полукокса и int) в этом классе. Мне не удалось воспроизвести его, так что, возможно, это ошибка, которая была исправлена или какое-то другое взаимодействие.
Как @Id, так и @Index на Subject.subjectName кажется не нужно?

источник

2013-12-25 13:23:18

Thnku so much ....... Проблема была в примитивных типах объекта Subject, поэтому я бы изменил использование Integer и Character (вместо char и int) в этом классе – user2769605

ETOOMUCHCOMPLEXITY: слои абстракции, добавленные каркасами, приводят к тому, что информация об ошибках в трассировке стека не коррелирует с вашим исходным кодом. Создайте крошечное новое приложение, которое работает. Постепенно добавляйте и тестируйте фрагменты вашего приложения, пока оно не сломается, а затем вернитесь к тому, что сработало и попробуйте что-то еще.

Самое раннее упоминание вашего исходного кода в трассировке стека - строка Hello.java 38. Подсчитав их, строка 38 - это конец файла! Вероятно, это означает, что класс Hello в целом выглядит хорошо, но не инициализируется. Поскольку сам класс Hello очень прост, ошибка наиболее вероятна в его отношении к другим вещам, от которых это зависит.

источник

2013-12-25 09:43:52

PLS проверяет обновленный код класса Hello. – user2769605

Ошибка при использовании google objectify

ответ

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