please try againinclude error,path:/comp/breadcrumb/nav?compId=breadcrumb_nav-15453540333944983 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.findPageNameById(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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虫胶树

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产品描述
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1、来源

紫胶是由生活在寄主植物上的紫胶虫分泌的纯天然树脂,具有粘接性强、绝缘、防潮、涂膜光滑、透亮等特征,且无毒、无味,是重要的工业原料,被广泛应用于化工、军工、冶金、机械、木器、造纸、电子、医药、食品等行业,具有重要的经济价值。紫胶产品主要有:颗粒胶、有色虫胶片、漂白胶及紫胶红色素等系列产品。

2、组分

紫胶的主要成份是树脂。此外,还含有蜡质、色素和其它水溶物等。各组分的含量随寄主树、产地、季节的不同而有所变化。

3、特性

(1)唯一的热硬化性天然树脂,在常温下易溶于酒精,而以125℃加热三小时却不溶于酒精。

(2)不溶于水,溶解于酒精等有机溶剂,能快干而产生光泽、装饰、耐久的薄膜,对各种物体的表面显示高度的粘着性,坚固且富有弹性。因此,有防水、防潮、防锈、耐腐、对物体起保护作用。

(3)能抵抗紫外线光。

(4)在碱性溶液中可成良好胶片具有高粘着力。

(5)能抗拒碳化氢溶剂如汽油等,具有耐油作用。

(6)是一种低热非导体,其膨胀系数小,是良好的绝缘体。

(7)利用我厂特有的技术,用精选的原料加工生产的紫胶片产品已具备与印度产品相媲美的能力。产品具有透明、耐磨擦、易溶于酒精、涂膜干燥快、耐油耐酸、可塑性强、固色性能好等优点。

4、应用

(1)加热具有可塑性及可铸性,加上它有吸收大量渗入物的能力,在熔铸工业上很有应用价值。

(2)紫胶树脂的无毒性。基于上述优良特性,紫胶树脂被应用于酒精涂料、电绝缘材料、印刷油墨、橡胶填充料以及利用其耐油、耐酸的用途。

(3)其它行业:在医药、食品、化妆品、化工、冶金、机械、木器、造纸、电子及军工等领域被广泛应用。

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