Question

我希望你们都能帮助我，我和MuleSoft（MS）大师已经有2天了，我们无法解决这个问题。简单地说，我们无法连接到SQL Server数据库。我正在使用Generic_Database_Connectory，其中包含以下信息：

网址：jdbc:jtds:sqlserver://ba-crmdb01.ove.local:60520;Instance=CRM;user=rcapilli...
驱动程序类名称：com.microsoft.sqlserver.jdbc.SQLServerDriver

这是最新的sqljdbc4.jar文件。 “测试连接”工作正常。没问题。但是当我运行应用程序时，我收到此错误（如下）

任何人都能够使SQL Server数据库连接正常工作???

ERROR 2015-04-09 14:05:31,106 [pool-17-thread-1] org.mule.exception.DefaultSystemExceptionStrategy: Caught exception in Exception Strategy: null
java.lang.NullPointerException
	at org.mule.module.db.internal.domain.connection.DefaultDbConnection.isClosed(DefaultDbConnection.java:100) ~[mule-module-db-3.6.1.jar:3.6.1]
	at org.mule.module.db.internal.domain.connection.TransactionalDbConnectionFactory.releaseConnection(TransactionalDbConnectionFactory.java:136) ~[mule-module-db-3.6.1.jar:3.6.1]
	at org.mule.module.db.internal.processor.AbstractDbMessageProcessor.process(AbstractDbMessageProcessor.java:99) ~[mule-module-db-3.6.1.jar:3.6.1]
	at org.mule.transport.polling.MessageProcessorPollingMessageReceiver$1.process(MessageProcessorPollingMessageReceiver.java:164) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.transport.polling.MessageProcessorPollingMessageReceiver$1.process(MessageProcessorPollingMessageReceiver.java:148) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.ExecuteCallbackInterceptor.execute(ExecuteCallbackInterceptor.java:16) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.HandleExceptionInterceptor.execute(HandleExceptionInterceptor.java:30) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.HandleExceptionInterceptor.execute(HandleExceptionInterceptor.java:14) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.BeginAndResolveTransactionInterceptor.execute(BeginAndResolveTransactionInterceptor.java:54) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.ResolvePreviousTransactionInterceptor.execute(ResolvePreviousTransactionInterceptor.java:44) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.SuspendXaTransactionInterceptor.execute(SuspendXaTransactionInterceptor.java:50) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.ValidateTransactionalStateInterceptor.execute(ValidateTransactionalStateInterceptor.java:40) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.IsolateCurrentTransactionInterceptor.execute(IsolateCurrentTransactionInterceptor.java:41) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.ExternalTransactionInterceptor.execute(ExternalTransactionInterceptor.java:48) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.RethrowExceptionInterceptor.execute(RethrowExceptionInterceptor.java:28) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.RethrowExceptionInterceptor.execute(RethrowExceptionInterceptor.java:13) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.TransactionalErrorHandlingExecutionTemplate.execute(TransactionalErrorHandlingExecutionTemplate.java:109) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.execution.TransactionalErrorHandlingExecutionTemplate.execute(TransactionalErrorHandlingExecutionTemplate.java:30) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.transport.polling.MessageProcessorPollingMessageReceiver.pollWith(MessageProcessorPollingMessageReceiver.java:147) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.transport.polling.MessageProcessorPollingMessageReceiver.poll(MessageProcessorPollingMessageReceiver.java:138) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.transport.AbstractPollingMessageReceiver.performPoll(AbstractPollingMessageReceiver.java:216) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.transport.PollingReceiverWorker.poll(PollingReceiverWorker.java:80) ~[mule-core-3.6.1.jar:3.6.1]
	at org.mule.transport.PollingReceiverWorker.run(PollingReceiverWorker.java:49) ~[mule-core-3.6.1.jar:3.6.1]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) ~[?:1.7.0_75]
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304) ~[?:1.7.0_75]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) ~[?:1.7.0_75]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.7.0_75]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [?:1.7.0_75]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [?:1.7.0_75]
	at java.lang.Thread.run(Thread.java:745) [?:1.7.0_75]

Answer 1

这就是我以前的配置方式，它对我有用..你可以尝试这个例子： -

<db:generic-config name="Generic_Database_Configuration"
        url="jdbc:sqlserver://ANIRBAN-PC\\SQLEXPRESS:1433;databaseName=MyDBName;user=sa;password=mypassword"
        driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver" doc:name="Generic Database Configuration" />

并在骡子流中： -

<db:select config-ref="Generic_Database_Configuration" doc:name="Database">
    <db:parameterized-query><![CDATA[select * from table1]]></db:parameterized-query>
  </db:select>

Answer 2

如果您的测试连接正常，则数据库连接应该没有问题。请发布配置XML，这将有助于确定问题。

Answer 3

您尝试使用数据库连接器执行查询字符串时会出现问题。由于Mule连接器测试仅检查连接，而不检查查询的正确性。

你测试了你的查询吗？在DB sql查询编辑器中运行此查询时是否显示该值？

如果这不能解决问题，那么请您与我们分享您的流程。

希望这有帮助

Answer 4

我也遇到了同样的问题，所以我尝试了不同的jar。您可以从以下位置获取jdbc jar文件： https://mvnrepository.com/artifact/com.microsoft.sqlserver/mssql-jdbc/6.1.0.jre8

不确定问题是否是jar，但在使用这个新的jar文件后它才有效。此外，如果您已对项目进行了整理，请从pom.xml文件中删除现有的sqljdbc jar文件及其依赖项。

MuleSoft和SQL Server数据库连接失败

4 个答案: