我有一个带有JDBC mysql连接的服务器,但每天早上我检查服务器时都会收到此错误:
java.sql.SQLException:通信链接失败: java.io.EOFException,底层原因:null
**开始没有异常**
java.io.EOFException的
堆栈跟踪:
java.io.EOFException的 在com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1395) 在com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:1539) 在com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1930) 在com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1168) 在com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1279) 在com.mysql.jdbc.Connection.execSQL(Connection.java:2281) 在com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1634) 在hu.craftbox.Server.CraftboxServerHandler.messageReceived(CraftboxServerHandler.java:158) 在org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) 在org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) 在org.jboss.netty.channel.DefaultChannelPipeline $ DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) 在org.jboss.netty.handler.timeout.ReadTimeoutHandler.messageReceived(ReadTimeoutHandler.java:184) 在org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) 在org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) 在org.jboss.netty.channel.DefaultChannelPipeline $ DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) 在org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) 在org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:70) 在org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) 在org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) 在org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) 在org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) 在org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) 在org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) 在org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318) 在org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) 在org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) 在org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) 在org.jboss.netty.util.internal.DeadLockProofWorker $ 1.run(DeadLockProofWorker.java:42) 在java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor $ Worker.run(ThreadPoolExecutor.java:615) 在java.lang.Thread.run(Thread.java:744)
**结束了例外**
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:1714) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:1930) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1168) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1279) at com.mysql.jdbc.Connection.execSQL(Connection.java:2281) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1634) at hu.craftbox.Server.CraftboxServerHandler.messageReceived(CraftboxServerHandler.java:158) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) at org.jboss.netty.handler.timeout.ReadTimeoutHandler.messageReceived(ReadTimeoutHandler.java:184) at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) at org.jboss.netty.handler.codec.oneone.OneToOneDecoder.handleUpstream(OneToOneDecoder.java:70) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318) at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744)
什么可能导致此问题,我该如何解决?