Caused by: java.io.EOFException: Can not read response from server.

1、错误描述

The last packet successfully received from the server was 76,997 milliseconds ago.  The last packet sent successfully to the server was 78,995 

milliseconds ago.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1117)
	at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:2144)
	at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1900)
	at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:3401)
	at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:483)
	at com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:3096)
	at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:2266)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2687)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2719)
	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2155)
	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2318)
	at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.logicalcobwebs.proxool.ProxyStatement.invoke(ProxyStatement.java:100)
	at org.logicalcobwebs.proxool.ProxyStatement.intercept(ProxyStatement.java:57)
	at $java.sql.Wrapper$$EnhancerByProxool$$8d43c634.executeQuery(<generated>)
	at base.dao.impl.BaseDaoImpl$2.execute(BaseDaoImpl.java:185)
	at base.dao.impl.BaseDaoImpl$2.execute(BaseDaoImpl.java:1)
	at org.hibernate.jdbc.WorkExecutor.executeReturningWork(WorkExecutor.java:72)
	at org.hibernate.internal.SessionImpl$3.accept(SessionImpl.java:2052)
	at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.coordinateWork(JdbcCoordinatorImpl.java:313)
	... 82 more
Caused by: java.io.EOFException: Can not read response from server. Expected to read 5 bytes, read 3 bytes before connection was unexpectedly 

lost.
	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3017)
	at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:2125)
	... 102 more

2、错误原因

       错误提示：不能从服务器获取响应，即因为某种原因导致数据库服务器连接失败

3、解决办法

     检查数据库连接情况，确保正常连接