Nomin和Spring Boot应用程序：递归映射规则a = b导致无限循环 [英] Nomin and Spring Boot application: recursive mapping rule a = b causes infinite loop
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问题描述
由于我已经很少遇到组合Nomin，Eclipse和Groovy的问题（请参阅
在220行上，我们有 pm.sideB.isAssignableFrom（key.source）应该导致 true ，因为 pm.sideB 是类型的钱币和键.source 是 Coin 类型（见屏幕截图）。
你的问题是由
spring-boot-devtools 运行时依赖关系。当你用调试器运行你的应用程序时，你会发现类 net.hemisoft.ccm.porter.Coin 和 net.hemisoft.ccm.domain.CoinOnMarketPlace 使用两个不同的类加载器加载两次： -
sun.misc.Launcher $ AppClassLoader -
org.springframework.boot.devtools.restart。 classloader.RestartClassLoader
这就是为什么以下部分代码评估为 false ：
<$ p $ （pm.sideB.isAssignableFrom（key.source）&& pm.sideA.isAssignableFrom（key.target））result.add（new MappingWithDirection（pm，false））;
即使 key.source 和 pm.sideB 似乎是相同类，它们并不相同，因为它们由两个不同的类加载器管理。具有相同规范名称的类在同一个类加载器中仅相等。这就是为什么你的单元测试像一个魅力一样工作 - 没有涉及devtools的spring引导，如果你使用调试器去 Nomin.java :(行220）测试，你会看到 key.source 和 pm.sideB 在一个类加载器中持有同一个类的引用，所以此表达式的计算结果为 true ，并且正在使用您定义的映射。否则， nomin 的问题会自动生成映射（它可以使用 Nomin.disableAutoMapping（））禁用，在这种情况下，它使用默认的introspector - ReflectionIntrospector 。这个问题引发了Groovy类的问题，因为我们已经在您之前的一个SO问题中找到了解决方案。
解决方案
禁用 spring-boot-devtools 或禁用重新启动，或者至少尝试从重新启动的应用程序中排除您的域类。您可以查看 Spring Boot Devtools docs 看看如何去做。我会摆脱它 - 因为你可以看到它使你的应用程序在你的开发环境中以不同的方式运行，所以你永远无法确定它在运行时的表现。
As I had already few issues with combination Nomin, Eclipse and Groovy (see link1 and link2), I am again struggling with it.
My application works with JUnit Tests, both in Console via Gradle and Eclipse. But now it doesn't want to work when executing SpringBoot-Main class. Either in Eclipse nor with gradle bootRun on Console or Eclipse Gradle Task => Same Exception
@SpringBootApplication
class CcmApplication {
static void main(String[] args) {
def ctx = SpringApplication.run CcmApplication, args
def scanner = new Scanner(System.in);
print 'Press <Return> to quit program'
scanner.nextLine()
scanner.close()
ctx.close()
}
}
Transformator Class:
class CoinMarketCapTransformer {
def resource = ClassPathResource.newInstance("coinmarketcap2coin.groovymapper")
println resource.isFile() // Prints true
println resource.isReadable() // Prints true
Nomin nomin = Nomin.newInstance(resource.filename)
CoinOnMarketPlace transform(Coin coin, @Header(name="marketName", required=true) String marketName) {
MarketPlace marketPlace = MarketPlace.newInstance(name: marketName)
CoinOnMarketPlace comp = nomin.map(coin, CoinOnMarketPlace)
comp.setMarketPlace(marketPlace)
comp
}
Coin transform(CoinOnMarketPlace comp) {
nomin.map(comp, Coin.class)
}
}
coinmarketcap2coin.groovymapper
Why I named it .groovymapper please see in the link above. Its location is src/main/resources
import net.hemisoft.ccm.domain.CoinOnMarketPlace
import net.hemisoft.ccm.porter.Coin
mappingFor a: CoinOnMarketPlace, b: Coin
introspector exploding
automap()
a.coin.coinId = b.coinId
a.coin.name = b.name
a.coin.symbol = b.symbol
a.lastUpdate = b.lastUpdateEpoch
convert to_a: { lastUpdateEpoch -> DateUtils.convertEpochMillis(lastUpdateEpoch) }
convert to_b: { lastUpdate -> DateUtils.convertLocalDateTime(lastUpdate) }
Stacktrace:
2018-01-21 17:18:23.288 ERROR 16872 --- [sk-scheduler-10] o.s.integration.handler.LoggingHandler : org.springframework.integration.transformer.MessageTransformationException: Failed to transform Message; nested exception is org.springframework.messaging.MessageHandlingException: nested exception is org.nomin.core.NominException: org.nomin.Mapping: Recursive mapping rule a = b causes infinite loop!, failedMessage=GenericMessage [payload=net.hemisoft.ccm.porter.Coin(bitcoin, Bitcoin, BTC, 1, 11524.4, 1.0, 9.96663E9, 1.93806837423E11, 1.6817087E7, 1.6817087E7, 2.1E7, -3.42, -10.21, -15.21, 1516551267), headers={sequenceNumber=1, Server=cloudflare, sequenceSize=100, Connection=keep-alive, http_statusCode=200, Date=1516551503000, marketName=coinMarketCap, Set-Cookie=__cfduid=dba860f31637c55e679ebf89660fcc7701516551503; expires=Mon, 21-Jan-19 16:18:23 GMT; path=/; domain=.coinmarketcap.com; HttpOnly; Secure, correlationId=dd703a62-f9b4-4838-ddfe-d5f272ce894a, id=c0ce3ae4-f478-c8c4-7901-dbf0061da1e2, Content-Length=54264, contentType=application/json, timestamp=1516551503272}], failedMessage=GenericMessage [payload=net.hemisoft.ccm.porter.Coin(bitcoin, Bitcoin, BTC, 1, 11524.4, 1.0, 9.96663E9, 1.93806837423E11, 1.6817087E7, 1.6817087E7, 2.1E7, -3.42, -10.21, -15.21, 1516551267), headers={sequenceNumber=1, Server=cloudflare, sequenceSize=100, Connection=keep-alive, http_statusCode=200, Date=1516551503000, marketName=coinMarketCap, Set-Cookie=__cfduid=dba860f31637c55e679ebf89660fcc7701516551503; expires=Mon, 21-Jan-19 16:18:23 GMT; path=/; domain=.coinmarketcap.com; HttpOnly; Secure, correlationId=dd703a62-f9b4-4838-ddfe-d5f272ce894a, id=c0ce3ae4-f478-c8c4-7901-dbf0061da1e2, Content-Length=54264, contentType=application/json, timestamp=1516551503272}]
at org.springframework.integration.transformer.MessageTransformingHandler.handleRequestMessage(MessageTransformingHandler.java:95)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:109)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:141)
at org.springframework.integration.dispatcher.BroadcastingDispatcher.invokeHandler(BroadcastingDispatcher.java:224)
at org.springframework.integration.dispatcher.BroadcastingDispatcher.dispatch(BroadcastingDispatcher.java:180)
at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:73)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:438)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:388)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:181)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:160)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:47)
at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:108)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:418)
at org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:328)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutputs(AbstractMessageProducingHandler.java:219)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:115)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:141)
at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)
at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:132)
at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:105)
at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:73)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:438)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:388)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:181)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:160)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:47)
at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:108)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:418)
at org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:328)
at org.springframework.integration.handler.MessageHandlerChain$ReplyForwardingMessageChannel.send(MessageHandlerChain.java:238)
at org.springframework.messaging.MessageChannel.send(MessageChannel.java:45)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:181)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:160)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:47)
at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:108)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:418)
at org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:328)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutputs(AbstractMessageProducingHandler.java:219)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:115)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:141)
at org.springframework.integration.handler.MessageHandlerChain.lambda$configureChain$0(MessageHandlerChain.java:124)
at org.springframework.messaging.MessageChannel.send(MessageChannel.java:45)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:181)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:160)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:47)
at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:108)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:418)
at org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:328)
at org.springframework.integration.splitter.AbstractMessageSplitter.produceOutput(AbstractMessageSplitter.java:231)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutputs(AbstractMessageProducingHandler.java:219)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:115)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:141)
at org.springframework.integration.handler.MessageHandlerChain.handleMessageInternal(MessageHandlerChain.java:110)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:141)
at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)
at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:132)
at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:105)
at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:73)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:438)
at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:388)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:181)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:160)
at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:47)
at org.springframework.messaging.core.AbstractMessageSendingTemplate.send(AbstractMessageSendingTemplate.java:108)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutput(AbstractMessageProducingHandler.java:418)
at org.springframework.integration.handler.AbstractMessageProducingHandler.produceOutput(AbstractMessageProducingHandler.java:328)
at org.springframework.integration.handler.AbstractMessageProducingHandler.sendOutputs(AbstractMessageProducingHandler.java:219)
at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:115)
at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:141)
at org.springframework.integration.endpoint.PollingConsumer.handleMessage(PollingConsumer.java:129)
at org.springframework.integration.endpoint.AbstractPollingEndpoint.doPoll(AbstractPollingEndpoint.java:278)
at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller.lambda$run$0(AbstractPollingEndpoint.java:379)
at org.springframework.integration.util.ErrorHandlingTaskExecutor.lambda$execute$0(ErrorHandlingTaskExecutor.java:53)
at org.springframework.core.task.SyncTaskExecutor.execute(SyncTaskExecutor.java:50)
at org.springframework.integration.util.ErrorHandlingTaskExecutor.execute(ErrorHandlingTaskExecutor.java:51)
at org.springframework.integration.endpoint.AbstractPollingEndpoint$Poller.run(AbstractPollingEndpoint.java:373)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:93)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.messaging.MessageHandlingException: nested exception is org.nomin.core.NominException: org.nomin.Mapping: Recursive mapping rule a = b causes infinite loop!, failedMessage=GenericMessage [payload=net.hemisoft.ccm.porter.Coin(bitcoin, Bitcoin, BTC, 1, 11524.4, 1.0, 9.96663E9, 1.93806837423E11, 1.6817087E7, 1.6817087E7, 2.1E7, -3.42, -10.21, -15.21, 1516551267), headers={sequenceNumber=1, Server=cloudflare, sequenceSize=100, Connection=keep-alive, http_statusCode=200, Date=1516551503000, marketName=coinMarketCap, Set-Cookie=__cfduid=dba860f31637c55e679ebf89660fcc7701516551503; expires=Mon, 21-Jan-19 16:18:23 GMT; path=/; domain=.coinmarketcap.com; HttpOnly; Secure, correlationId=dd703a62-f9b4-4838-ddfe-d5f272ce894a, id=c0ce3ae4-f478-c8c4-7901-dbf0061da1e2, Content-Length=54264, contentType=application/json, timestamp=1516551503272}]
at org.springframework.integration.handler.MethodInvokingMessageProcessor.processMessage(MethodInvokingMessageProcessor.java:107)
at org.springframework.integration.transformer.AbstractMessageProcessingTransformer.transform(AbstractMessageProcessingTransformer.java:90)
at org.springframework.integration.transformer.MessageTransformingHandler.handleRequestMessage(MessageTransformingHandler.java:89)
... 84 more
Caused by: org.nomin.core.NominException: org.nomin.Mapping: Recursive mapping rule a = b causes infinite loop!
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:83)
at org.codehaus.groovy.reflection.CachedConstructor.doConstructorInvoke(CachedConstructor.java:77)
at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrap.callConstructor(ConstructorSite.java:84)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:247)
at org.nomin.core.MappingEntry.validate(MappingEntry.groovy:64)
at sun.reflect.GeneratedMethodAccessor121.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoCachedMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:210)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:59)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:174)
at org.nomin.core.MappingEntry.parse(MappingEntry.groovy:56)
at sun.reflect.GeneratedMethodAccessor120.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:98)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1224)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1033)
at org.codehaus.groovy.runtime.InvokerHelper.invokePogoMethod(InvokerHelper.java:1010)
at org.codehaus.groovy.runtime.InvokerHelper.invokeMethod(InvokerHelper.java:993)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodN(ScriptBytecodeAdapter.java:168)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodNSafe(ScriptBytecodeAdapter.java:176)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethodNSpreadSafe(ScriptBytecodeAdapter.java:183)
at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.invokeMethod0SpreadSafe(ScriptBytecodeAdapter.java:198)
at org.nomin.Mapping.parse(Mapping.groovy:44)
at org.nomin.core.Nomin.findApplicable(Nomin.java:228)
at org.nomin.core.Nomin.findCachedApplicable(Nomin.java:211)
at org.nomin.core.Nomin.map(Nomin.java:201)
at org.nomin.core.Nomin.map(Nomin.java:159)
at org.nomin.core.Nomin.map(Nomin.java:156)
at org.nomin.NominMapper$map.call(Unknown Source)
at net.hemisoft.ccm.repository.CoinMarketCapTransformer.transform(CoinMarketCapTransformer.groovy:17)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.messaging.handler.invocation.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:181)
at org.springframework.messaging.handler.invocation.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:114)
at org.springframework.integration.util.MessagingMethodInvokerHelper$HandlerMethod.invoke(MessagingMethodInvokerHelper.java:1039)
at org.springframework.integration.util.MessagingMethodInvokerHelper.invokeHandlerMethod(MessagingMethodInvokerHelper.java:608)
at org.springframework.integration.util.MessagingMethodInvokerHelper.processInternal(MessagingMethodInvokerHelper.java:504)
at org.springframework.integration.util.MessagingMethodInvokerHelper.process(MessagingMethodInvokerHelper.java:313)
at org.springframework.integration.handler.MethodInvokingMessageProcessor.processMessage(MethodInvokingMessageProcessor.java:104)
... 86 more
UPDATE:
The following CodeSnippet from Nomin.class works as expected when running under Test. When running via bootRun the else if on line 220 is false, what should be true.
On line 220 we have pm.sideB.isAssignableFrom(key.source) what should result to true, because pm.sideB is type of Coin, and key.source is type of Coin (see Screenshots).
解决方案
Your problem is caused by spring-boot-devtools runtime dependency. When you run your application with a debugger you will find out that classes net.hemisoft.ccm.porter.Coin and net.hemisoft.ccm.domain.CoinOnMarketPlace are loaded twice using two different classloaders:
sun.misc.Launcher$AppClassLoaderorg.springframework.boot.devtools.restart.classloader.RestartClassLoader
This is why following part of code evaluates to false:
else if (pm.sideB.isAssignableFrom(key.source) && pm.sideA.isAssignableFrom(key.target)) result.add(new MappingWithDirection(pm, false));
Even though key.source and pm.sideB seems to be the "same" classes, they are not equal because they are being managed by two different classloaders. Classes with the same canonical name are only equal inside same classloader. And this is why your unit test works like a charm - there is no spring boot devtools involved and if you go with debugger to Nomin.java:(line 220) while running unit test, you will see that key.source and pm.sideB hold a reference to the same class inside one classloader so this expression evaluates to true and the mapping you defined is being used. Otherwise nomin generates tries to generate mapping automatically (it can be disabled with Nomin.disableAutoMapping()) and in this case it uses default introspector - ReflectionIntrospector. This one causes issues with Groovy classes as we already figured out in one of your previous SO questions.
Solution
Disable spring-boot-devtools or disable restarts or at least try to exclude your domain classes from restarting application. You can check Spring Boot Devtools docs to see how to do it. I would just get rid of it - as you can see it makes your application running differently in your dev environment, so you can never be sure how it behaves when running live.
这篇关于Nomin和Spring Boot应用程序：递归映射规则a = b导致无限循环的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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