升级到 1.7.0.RELEASE 后出现 NoClassDefFoundError

Question

我试图在我的 playframework 项目中将我的应用程序从 1.6.2.RELEASE 升级到 1.7.0.RELEASE。 插入查询工作正常，但是当 spring-data 在获取查询结果后尝试使用类名膨胀对象时似乎存在问题，如果查询没有结果，则返回一个空数组列表而不会引发错误。

1.7.0.RELEASE 在另一个基于 spring-integration 框架的项目中运行良好。

下面是statck跟踪：-

java.lang.NoClassDefFoundError: models/db/nosql/ACME
 models.db.nosql.ACME_Instantiator_gtblf6.newInstance(Unknown Source)
 org.springframework.data.convert.BytecodeGeneratingEntityInstantiator$EntityInstantiatorAdapter.createInstance(BytecodeGeneratingEntityInstantiator.java:193)
 org.springframework.data.convert.BytecodeGeneratingEntityInstantiator.createInstance(BytecodeGeneratingEntityInstantiator.java:76)
 org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:250)
 org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:231)
 org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:191)
 org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:187)
 org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:78)
 org.springframework.data.mongodb.core.MongoTemplate$ReadDbObjectCallback.doWith(MongoTemplate.java:2191)
 org.springframework.data.mongodb.core.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:1873)
 org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:1696)
 org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:1679)
 org.springframework.data.mongodb.core.MongoTemplate.find(MongoTemplate.java:598)
 org.springframework.data.mongodb.core.MongoTemplate.find(MongoTemplate.java:589)
 GenerateACME.reverseBizCode(GenerateACME.java:42)
 Global.onStart(Global.java:23)
 play.core.j.JavaGlobalSettingsAdapter.onStart(JavaGlobalSettingsAdapter.scala:22)
 play.api.GlobalPlugin.onStart(GlobalSettings.scala:220)
 play.api.Play$$anonfun$start$1$$anonfun$apply$mcV$sp$1.apply(Play.scala:91)
 play.api.Play$$anonfun$start$1$$anonfun$apply$mcV$sp$1.apply(Play.scala:91)
 scala.collection.immutable.List.foreach(List.scala:383)
 play.api.Play$$anonfun$start$1.apply$mcV$sp(Play.scala:91)
 play.api.Play$$anonfun$start$1.apply(Play.scala:91)
 play.api.Play$$anonfun$start$1.apply(Play.scala:91)
 play.utils.Threads$.withContextClassLoader(Threads.scala:21)
 play.api.Play$.start(Play.scala:90)
 play.core.ReloadableApplication$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(ApplicationProvider.scala:157)
 play.core.ReloadableApplication$$anonfun$get$1$$anonfun$apply$1$$anonfun$1.apply(ApplicationProvider.scala:130)
 scala.Option.map(Option.scala:145)
 play.core.ReloadableApplication$$anonfun$get$1$$anonfun$apply$1.apply(ApplicationProvider.scala:130)
 play.core.ReloadableApplication$$anonfun$get$1$$anonfun$apply$1.apply(ApplicationProvider.scala:128)
 scala.util.Success.flatMap(Try.scala:230)
 play.core.ReloadableApplication$$anonfun$get$1.apply(ApplicationProvider.scala:128)
 play.core.ReloadableApplication$$anonfun$get$1.apply(ApplicationProvider.scala:120)
 scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
 scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
 scala.concurrent.forkjoin.ForkJoinTask$AdaptedRunnableAction.exec(ForkJoinTask.java:1361)
 scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
 scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
 scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
 scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

Answer 1

我也面临这个错误。我认为这是spring data mongodb的错误。

如果 Db 模型和所有服务、存储库在一个项目中，则不会出现此类错误。 但如果服务在另一个项目中，则可以 100% 重现。我找不到避免此错误的方法。

现在，我正在尝试在 mongodb 持久层上使用 OGM。