类名错误或未设置类路径：com.mysql.cj.jdbc.MysqlDataSource 请检查 server.log 以获取更多详细信息

问题描述 投票：0回答：1

当我在 JDBC 中尝试 Ping 时，出现错误：

Ping Connection Pool failed for banksmart. Class name is wrong or classpath is not set for : com.mysql.cj.jdbc.MysqlDataSource Please check the server.log for more details.

这是我的 JDBC 连接池设置：

https://imgur.com/a/kOf6qXi

我添加了这些(https://imgur.com/a/Oo7zBeS ) 文件到：

/home/banksmart/glassfish4/glassfish/domains/domain1/lib/ext

这是取自

/home/banksmart/glassfish4/glassfish/domains/domain1/logs/server.log
的server.log：

[2023-04-23T13:53:18.461+0545] [glassfish 4.1] [SEVERE] [jdbc.exc_cnfe_ds] [javax.enterprise.resource.resourceadapter.com.sun.gjc.util] [tid: _ThreadID=193 _ThreadName=admin-listener(25)] [timeMillis: 1682237298461] [levelValue: 1000] [[
  RAR5099 : Wrong class name or classpath for Datasource Object
java.lang.ClassNotFoundException: com.mysql.cj.jdbc.MysqlDataSource
        at java.net.URLClassLoader.findClass(URLClassLoader.java:387)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:348)
        at com.sun.gjc.common.DataSourceObjectBuilder.getDataSourceObject(DataSourceObjectBuilder.java:285)
        at com.sun.gjc.common.DataSourceObjectBuilder.constructDataSourceObject(DataSourceObjectBuilder.java:114)
        at com.sun.gjc.spi.ManagedConnectionFactoryImpl.getDataSource(ManagedConnectionFactoryImpl.java:1300)
        at com.sun.gjc.spi.DSManagedConnectionFactory.getDataSource(DSManagedConnectionFactory.java:163)
        at com.sun.gjc.spi.DSManagedConnectionFactory.createManagedConnection(DSManagedConnectionFactory.java:102)
        at com.sun.enterprise.connectors.service.ConnectorConnectionPoolAdminServiceImpl.getUnpooledConnection(ConnectorConnectionPoolAdminServiceImpl.java:702)
        at com.sun.enterprise.connectors.service.ConnectorConnectionPoolAdminServiceImpl.testConnectionPool(ConnectorConnectionPoolAdminServiceImpl.java:431)
        at com.sun.enterprise.connectors.ConnectorRuntime.pingConnectionPool(ConnectorRuntime.java:1162)
        at org.glassfish.connectors.admin.cli.PingConnectionPool.execute(PingConnectionPool.java:143)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:539)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:535)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:360)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:534)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:565)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:557)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:360)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:556)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1464)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:109)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1846)
        at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1722)
        at org.glassfish.admin.rest.utils.ResourceUtil.runCommand(ResourceUtil.java:253)
        at org.glassfish.admin.rest.utils.ResourceUtil.runCommand(ResourceUtil.java:231)
        at org.glassfish.admin.rest.resources.TemplateExecCommand.executeCommandLegacyFormat(TemplateExecCommand.java:157)
        at org.glassfish.admin.rest.resources.TemplateCommandGetResource.processGetLegacyFormat(TemplateCommandGetResource.java:75)
        at sun.reflect.GeneratedMethodAccessor199.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:151)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:171)
        at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:152)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:104)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:387)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:331)
        at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:103)
        at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:271)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
        at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
        at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
        at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:297)
        at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:254)
        at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1028)
        at org.glassfish.jersey.grizzly2.httpserver.GrizzlyHttpContainer.service(GrizzlyHttpContainer.java:365)
        at org.glassfish.admin.rest.adapter.RestAdapter$2.service(RestAdapter.java:316)
        at org.glassfish.admin.rest.adapter.RestAdapter.service(RestAdapter.java:179)
        at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
        at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
        at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
        at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
        at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
        at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
        at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
        at org.glassfish.grizzly.portunif.PUFilter.handleRead(PUFilter.java:231)
        at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
        at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
        at org.glassfish.grizzly.portunif.PUFilter.handleRead(PUFilter.java:231)
        at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
        at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
        at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
        at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
        at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
        at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
        at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
        at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
        at java.lang.Thread.run(Thread.java:750)
]]

[2023-04-23T13:53:18.462+0545] [glassfish 4.1] [WARNING] [test.connection.pool.failed] [javax.enterprise.resource.resourceadapter.com.sun.enterprise.connectors.service] [tid: _ThreadID=193 _ThreadName=admin-listener(25)] [timeMillis: 1682237298462] [levelValue: 900] [[
  RAR8054: Exception while creating an unpooled [test] connection for pool [ banksmart ], Class name is wrong or classpath is not set for : com.mysql.cj.jdbc.MysqlDataSource]]

[2023-04-23T13:53:18.479+0545] [glassfish 4.1] [SEVERE] [] [org.glassfish.admingui] [tid: _ThreadID=182 _ThreadName=admin-listener(14)] [timeMillis: 1682237298479] [levelValue: 1000] [[
  RestResponse.getResponse() gives FAILURE.  endpoint = 'https://localhost:4848/management/domain/resources/ping-connection-pool.json'; attrs = '{id=banksmart}']]

我的机器是运行Centos7 Minimal的VMware。

没有回答我问题的相关问题：

为什么我不能从 JDBC 连接池中 ping 我的数据库？

然后我读了这个答案http://bhapca.blogspot.com/2009/06/class-name-is-wrong-or-classpath-is-not.html

对于 3.1.1 一个文档和另一个文档表示 mysql-connector-java-5.1.14-bin.jar 应该放在lib下 文件夹，不在 lib/ext 文件夹下。

当我尝试重新启动域时，出现以下错误：

[banksmart@localhost bin]$ ./asadmin restart-domain domain1
NCLS-ADMIN-00010
Server is not running, will attempt to start it...
There is a process already using the admin port 4848 -- it probably is another instance of a GlassFish server.
Command restart-domain failed.

我读过的其他答案：

无法从 Glassfish 连接到 JDBC 连接池

当我尝试冲洗时，它也失败了：

Flush Connection Pool failed for banksmart. Flush Connection Pool did not happen as pool - banksmart is not initialized. Please check the server.log for more details.
java sql mysql glassfish
1个回答
0
投票

两个问题。

jarfile 放错地方了。应该在 /lib 而不是 lib/ext.

你拿错罐子了。您需要 mysql-connector-j-8.0.33.jar 或可能是旧版本。 sqljdbc 适用于 ms sqlserver。

其他看起来不对劲的是您的资源类型是

XADataSource
，但您选择了一个非 XA 驱动程序类。他们需要匹配。我怀疑你想要
com.mysql.cj.jdbc.MysqlXADataSource

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