Gracias
Fuzzylog, ya solucione ese problema efectivamente era por la sesiones; ahora me sale el siguiente error:
Cita: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:
** BEGIN NESTED EXCEPTION **
java.io.IOException
MESSAGE: Stream closed
STACKTRACE:
java.io.IOException: Stream closed
at com.mysql.jdbc.util.ReadAheadInputStream.checkClos ed(ReadAheadInputStream.java:238)
at com.mysql.jdbc.util.ReadAheadInputStream.read(Read AheadInputStream.java:178)
at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1994 )
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO. java:2411)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.ja va:2916)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:16 31)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java :1723)
at com.mysql.jdbc.Connection.execSQL(Connection.java: 3256)
at com.mysql.jdbc.PreparedStatement.executeInternal(P reparedStatement.java:1313)
at com.mysql.jdbc.PreparedStatement.executeQuery(Prep aredStatement.java:1448)
at Sente.dao.SenteCuestDao.ingresarresdo(SenteCuestDa o.java:635)
at servlets.rsptacuestdoc.processRequest(rsptacuestdo c.java:193)
at servlets.rsptacuestdoc.doPost(rsptacuestdoc.java:2 78)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:717)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11Conn ectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run( JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
He buscado y la verdad no se porque me sale este error, asumo que es conexión, pero no se que sera.