hi!
i got this message recently:
ERROR,11:50:57 - Error calling Connection.prepareStatement:
java.sql.SQLException: No operations allowed after connection
closed.Connection was implicitly closed due to underlying exception/error:
** BEGIN NESTED EXCEPTION **
com.mysql.jdbc.CommunicationsException
MESSAGE: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.io.EOFException
STACKTRACE:
java.io.EOFException
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1934)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2380)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2909)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1600)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1695)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3020)
at com.mysql.jdbc.Connection.rollbackNoChecks(Connection.java:4913)
at com.mysql.jdbc.Connection.rollback(Connection.java:4810)
at
com.ibatis.common.jdbc.SimpleDataSource.popConnection(SimpleDataSource.java:629)
i reach the database like this:
<settings cacheModelsEnabled="true" />
<transactionManager type="JDBC" commitRequired="false">
<dataSource type="SIMPLE">
<property value="${driver}" name="JDBC.Driver" />
<property value="${url}" name="JDBC.ConnectionURL" />
<property value="${username}" name="JDBC.Username" />
<property value="${password}" name="JDBC.Password" />
</dataSource>
</transactionManager>
what is problem with it? why did it happen?
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