较简单问题:写不进大于20M的数据到longblob列中,请指救配置,再加分
java.sql.SQLException: Communication link failure: com.mysql.jdbc.PacketTooBigEx
ception
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:885)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:956)
at com.mysql.jdbc.Connection.execSQL(Connection.java:1874)
at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1351)
at org.apache.james.mailrepository.JDBCMailRepository.store(JDBCMailRepo
sitory.java:584)
at org.apache.james.mailrepository.JDBCSpoolRepository.store(JDBCSpoolRe
pository.java:190)
at org.apache.james.James.sendMail(James.java:444)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.avalon.phoenix.components.application.BlockInvocationHandl
er.invoke(BlockInvocationHandler.java:92)
at $Proxy9.sendMail(Unknown Source)
at org.apache.james.smtpserver.SMTPHandler.processMail(SMTPHandler.java:
1353)
at org.apache.james.smtpserver.SMTPHandler.doDATA(SMTPHandler.java:1200)
at org.apache.james.smtpserver.SMTPHandler.parseCommand(SMTPHandler.java
:560)
at org.apache.james.smtpserver.SMTPHandler.handleConnection(SMTPHandler.
java:337)
at org.apache.james.util.connection.ServerConnection$ClientConnectionRun
ner.run(ServerConnection.java:404)
at org.apache.avalon.excalibur.thread.impl.ExecutableRunnable.execute(Ex
ecutableRunnable.java:47)
at org.apache.avalon.excalibur.thread.impl.WorkerThread.run(WorkerThread
.java:80)
java.sql.SQLException: No operations allowed after connection closed
at com.mysql.jdbc.Connection.checkClosed(Connection.java:2497)
at com.mysql.jdbc.Connection.setAutoCommit(Connection.java:559)
at org.apache.james.util.mordred.PoolConnEntry.setAutoCommit(PoolConnEnt
ry.java:254)
at org.apache.james.mailrepository.JDBCMailRepository.store(JDBCMailRepo
sitory.java:438)
at org.apache.james.mailrepository.JDBCSpoolRepository.store(JDBCSpoolRe
pository.java:190)
at org.apache.james.James.sendMail(James.java:444)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.avalon.phoenix.components.application.BlockInvocationHandl
er.invoke(BlockInvocationHandler.java:92)
at $Proxy9.sendMail(Unknown Source)
at org.apache.james.smtpserver.SMTPHandler.processMail(SMTPHandler.java:
1353)
at org.apache.james.smtpserver.SMTPHandler.doDATA(SMTPHandler.java:1200)
at org.apache.james.smtpserver.SMTPHandler.parseCommand(SMTPHandler.java
:560)
at org.apache.james.smtpserver.SMTPHandler.handleConnection(SMTPHandler.
java:337)
at org.apache.james.util.connection.ServerConnection$ClientConnectionRun
ner.run(ServerConnection.java:404)
at org.apache.avalon.excalibur.thread.impl.ExecutableRunnable.execute(Ex
ecutableRunnable.java:47)
at org.apache.avalon.excalibur.thread.impl.WorkerThread.run(WorkerThread
.java:80)