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please try againinclude error,path:/comp/breadcrumb/nav?compId=breadcrumb_nav-15148117969478034 cause:org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.RuntimeException: org.springframework.transaction.TransactionSystemException: Could not commit JDBC transaction; nested exception is java.sql.SQLException: Unknown error%!(EXTRA string=invalid protocol version: 255) org.springframework.transaction.TransactionSystemException: Could not commit JDBC transaction; nested exception is java.sql.SQLException: Unknown error%!(EXTRA string=invalid protocol version: 255) at org.springframework.jdbc.datasource.DataSourceTransactionManager.doCommit(DataSourceTransactionManager.java:275) at cn.ce.ebiz.framework.persistence.mybatis.DataSourceTransactionManagerExt.doCommit(DataSourceTransactionManagerExt.java:55) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:761) at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:730) at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:483) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:290) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) at com.sun.proxy.$Proxy79.findPages(Unknown Source) at com.alibaba.dubbo.common.bytecode.Wrapper215.invokeMethod(Wrapper215.java) at com.alibaba.dubbo.rpc.proxy.javassist.JavassistProxyFactory$1.doInvoke(JavassistProxyFactory.java:45) at com.alibaba.dubbo.rpc.proxy.AbstractProxyInvoker.invoke(AbstractProxyInvoker.java:71) at com.alibaba.dubbo.config.invoker.DelegateProviderMetaDataInvoker.invoke(DelegateProviderMetaDataInvoker.java:48) at com.alibaba.dubbo.rpc.protocol.InvokerWrapper.invoke(InvokerWrapper.java:52) at cn.ce.ebiz.framework.remoting.DubboContextFilter.invoke(DubboContextFilter.java:220) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.rpc.filter.ExceptionFilter.invoke(ExceptionFilter.java:61) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.rpc.filter.TimeoutFilter.invoke(TimeoutFilter.java:41) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.monitor.support.MonitorFilter.invoke(MonitorFilter.java:74) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.rpc.protocol.dubbo.filter.TraceFilter.invoke(TraceFilter.java:77) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.rpc.filter.ContextFilter.invoke(ContextFilter.java:71) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.rpc.filter.GenericFilter.invoke(GenericFilter.java:131) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.rpc.filter.ClassLoaderFilter.invoke(ClassLoaderFilter.java:37) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.rpc.filter.EchoFilter.invoke(EchoFilter.java:37) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper$1.invoke(ProtocolFilterWrapper.java:68) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol$1.reply(DubboProtocol.java:98) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.handleRequest(HeaderExchangeHandler.java:96) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchangeHandler.received(HeaderExchangeHandler.java:168) at com.alibaba.dubbo.remoting.transport.DecodeHandler.received(DecodeHandler.java:50) at com.alibaba.dubbo.remoting.transport.dispatcher.ChannelEventRunnable.run(ChannelEventRunnable.java:79) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Caused by: java.sql.SQLException: Unknown error%!(EXTRA string=invalid protocol version: 255) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3978) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3914) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2491) at com.mysql.jdbc.ConnectionImpl.commit(ConnectionImpl.java:1555) at com.mchange.v2.c3p0.impl.NewProxyConnection.commit(NewProxyConnection.java:803) at org.springframework.jdbc.datasource.DataSourceTransactionManager.doCommit(DataSourceTransactionManager.java:272) ... 42 more

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数控剪板送料机选购技巧

【摘要】:
数控剪板送料机选购技巧1、要看厂家的实力、信誉、口碑、客户案例;2、要看厂家生产的数控剪板送料机质量怎么样,用什么样的配件、技术水平,成熟程度;3、要考察客户使用现场情况,客户满意度怎么样,客户说的最有说服力;4、要对数控剪板送料机厂家售后保障,培训材料,设备易损件等详细了解;总结:   要根据自己自身使用需求,选择适合自己的数控剪板送料机,要货比三家,自己心里才有数。

数控剪板送料机选购技巧

数控剪板送料机选购技巧

1、要看厂家的实力、信誉、口碑、客户案例

2、要看厂家生产的数控剪板送料机质量怎么样,用什么样的配件、技术水平,成熟程度;

3、要考察客户使用现场情况,客户满意度怎么样,客户说的最有说服力;

4、要对数控剪板送料机厂家售后保障,培训材料,设备易损件等详细了解;

总结:

     要根据自己自身使用需求,选择适合自己的数控剪板送料机,要货比三家,自己心里才有数。

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