java - 由 : java. lang.NoClassDefFoundError : Could not initialize class javassist. util.proxy.DefineClassHelper 引起

Question

我正在与一个团队合作开展一个大学项目。当我在前端工作时，团队的一部分与后端的数据库建立了连接。但是当我尝试使用我们的 api 的 get 请求时，我的玻璃鱼日志中出现错误。有时我在运行时会遇到不同的错误。我们正在使用持久性构建一个网络应用程序。当我在浏览器中使用正确的网址时，会出现以下错误:

SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

和:

javax.persistence.PersistenceException: [PersistenceUnit: VodafoneZiggoDB] Unable to build Hibernate SessionFactory

奇怪的是我的队友没有这个问题。我们有相同的IDEA和mysql工作台版本。我们确实有不同的 mysql 服务器版本。我在 macOS 上工作，而他们却没有。

我尝试将 javassist.jar 添加到 pom 中，并进行清理和安装，但这不起作用。我尝试过重新安装 IntelliJ 但没有成功。我尝试在 pom.xml 中使用不同的 mysql 连接器版本。我尝试在 stackoverflow 上寻找解决方案，但没有成功。

持久化文件:

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
             version="2.0">

    <persistence-unit name="userPU" transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
        <non-jta-data-source>java:comp/env/jdbc/userDb</non-jta-data-source>
        <properties>
            <property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
            <property name="javax.persistence.sql-load-script-source" value="sql/data.sql" />
            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" />
            <property name="hibernate.show_sql" value="true" />
        </properties>
    </persistence-unit>
</persistence>

at org.glassfish.jersey.internal.Errors$1.call(Errors.java:272)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:268)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:268)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:289)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:256)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:704)
    at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:416)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:370)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:389)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:342)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:229)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1628)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:258)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:755)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:575)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:159)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:371)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:238)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:520)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:217)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:182)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:156)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:218)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:95)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:260)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:177)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:109)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:88)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:53)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:524)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:89)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:94)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:33)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:114)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:569)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:549)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister
    at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:123)
    at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:77)
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:354)
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:422)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:880)
    ... 60 more
Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
    at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:91)
    at org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:116)
    at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:388)
    at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:518)
    at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:124)
    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.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:96)
    ... 64 more
Caused by: java.lang.reflect.InvocationTargetException
    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.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:88)
    ... 73 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class javassist.util.proxy.DefineClassHelper
    at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:128)
    at javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:552)
    at javassist.util.proxy.ProxyFactory.createClass2(ProxyFactory.java:537)
    at javassist.util.proxy.ProxyFactory.createClass1(ProxyFactory.java:473)
    at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:444)
    at org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.postInstantiate(JavassistProxyFactory.java:72)
    at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:164)
    at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:164)
    at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:60)
    ... 78 more
]]

第二条轨迹:

[2019-04-26T16:39:48.657+0200] [Payara 5.184] [WARN] [] [org.hibernate.orm.connections.pooling] [tid: _ThreadID=34 _ThreadName=http-thread-pool::http-listener-1(3)] [timeMillis: 1556289588657] [levelValue: 900] [[
  HHH10001002: Using Hibernate built-in connection pool (not for production use!)]]

  Fri Apr 26 16:39:48 CEST 2019 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification.]]

    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:272)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:268)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:268)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:289)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:256)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:704)
    at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:416)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:370)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:389)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:342)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:229)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1628)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:258)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:755)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:575)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:159)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:371)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:238)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:520)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:217)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:182)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:156)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:218)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:95)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:260)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:177)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:109)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:88)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:53)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:524)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:89)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:94)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:33)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:114)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:569)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:549)
    at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister
    at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:123)
    at org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:77)
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:354)
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:422)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:880)
    ... 60 more
Caused by: org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
    at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:91)
    at org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:116)
    at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:388)
    at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:518)
    at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:124)
    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.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:96)
    ... 64 more
Caused by: java.lang.reflect.InvocationTargetException
    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.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:88)
    ... 73 more
Caused by: java.lang.ExceptionInInitializerError
    at javassist.util.proxy.DefineClassHelper.<clinit>(DefineClassHelper.java:220)
    at javassist.util.proxy.FactoryHelper.toClass(FactoryHelper.java:128)
    at javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:552)
    at javassist.util.proxy.ProxyFactory.createClass2(ProxyFactory.java:537)
    at javassist.util.proxy.ProxyFactory.createClass1(ProxyFactory.java:473)
    at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:444)
    at org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.postInstantiate(JavassistProxyFactory.java:72)
    at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:164)
    at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:164)
    at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:60)
    ... 78 more
Caused by: java.lang.RuntimeException: cannot initialize
    at javassist.util.proxy.DefineClassHelper$SecuredPrivileged$1.getReferencedUnsafe(DefineClassHelper.java:115)
    at javassist.util.proxy.DefineClassHelper$SecuredPrivileged$1.<init>(DefineClassHelper.java:95)
    at javassist.util.proxy.DefineClassHelper$SecuredPrivileged.<clinit>(DefineClassHelper.java:39)
    ... 88 more
Caused by: java.lang.ClassNotFoundException: sun.misc.Unsafe not found by javassist [345]
    at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1639)
    at org.apache.felix.framework.BundleWiringImpl.access$200(BundleWiringImpl.java:80)
    at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:2053)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at javassist.util.proxy.SecurityActions$8.run(SecurityActions.java:200)
    at javassist.util.proxy.SecurityActions$8.run(SecurityActions.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at javassist.util.proxy.SecurityActions.getSunMiscUnsafeAnonymously(SecurityActions.java:196)
    at javassist.util.proxy.DefineClassHelper$SecuredPrivileged$1.getReferencedUnsafe(DefineClassHelper.java:106)
    ... 90 more
]]

和:

[2019-05-04T16:17:26.395+0200] [Payara 5.184] [WARNING] [] [org.glassfish.jersey.internal.Errors] [tid: _ThreadID=32 _ThreadName=http-thread-pool::http-listener-1(3)] [timeMillis: 1556979446395] [levelValue: 900] [[
  The following warnings have been detected: WARNING: Unknown HK2 failure detected:
MultiException stack 1 of 1
javax.enterprise.inject.CreationException
    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 java.lang.Class.newInstance(Class.java:442)
    at org.jboss.weld.security.NewInstanceAction.run(NewInstanceAction.java:33)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:40)
    at org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:50)
    at org.jboss.weld.injection.Exceptions.rethrowException(Exceptions.java:90)
    at org.jboss.weld.injection.ConstructorInjectionPoint.newInstance(ConstructorInjectionPoint.java:127)
    at org.jboss.weld.injection.ConstructorInjectionPoint.invokeAroundConstructCallbacks(ConstructorInjectionPoint.java:92)
    at org.jboss.weld.injection.ConstructorInjectionPoint.newInstance(ConstructorInjectionPoint.java:78)
    at org.jboss.weld.injection.producer.AbstractInstantiator.newInstance(AbstractInstantiator.java:28)
    at org.jboss.weld.injection.producer.BasicInjectionTarget.produce(BasicInjectionTarget.java:112)
    at org.jboss.weld.injection.producer.BeanInjectionTarget.produce(BeanInjectionTarget.java:186)
    at org.glassfish.jersey.ext.cdi1x.internal.AbstractCdiBeanSupplier$2.getInstance(AbstractCdiBeanSupplier.java:109)
    at org.glassfish.jersey.ext.cdi1x.internal.AbstractCdiBeanSupplier._provide(AbstractCdiBeanSupplier.java:127)
    at org.glassfish.jersey.ext.cdi1x.internal.GenericCdiBeanSupplier.get(GenericCdiBeanSupplier.java:66)
    at org.glassfish.jersey.inject.hk2.InstanceSupplierFactoryBridge.provide(InstanceSupplierFactoryBridge.java:77)
    at org.jvnet.hk2.internal.FactoryCreator.create(FactoryCreator.java:153)
    at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:487)
    at org.jvnet.hk2.internal.PerLookupContext.findOrCreate(PerLookupContext.java:70)
    at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2126)
    at org.jvnet.hk2.internal.ServiceLocatorImpl.internalGetService(ServiceLocatorImpl.java:777)
    at org.jvnet.hk2.internal.ServiceLocatorImpl.internalGetService(ServiceLocatorImpl.java:740)
    at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:710)
    at org.glassfish.jersey.inject.hk2.AbstractHk2InjectionManager.getInstance(AbstractHk2InjectionManager.java:184)
    at org.glassfish.jersey.inject.hk2.ImmediateHk2InjectionManager.getInstance(ImmediateHk2InjectionManager.java:54)
    at org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:129)
    at org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:286)
    at org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:75)
]]

当我在 mysql 连接器版本之间切换时，我还会收到 Driver#Connect 错误。

预期结果是浏览器或玻璃鱼日志中都没有出现这些错误。并且实际上在后端和 mysql 工作台之间建立了连接。

Answer 1

我已经重新导入了maven依赖，mvn clean install verifycompile打包了。然后我重新安装了 payara 5 并编辑了我的配置。现在它就像一个魅力!