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POCannot store Date variable in database in Java
 

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  1. POCannot store Date variable in database in Java
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    <p>I am trying to keep the last login date of a user in the database. Here are the necessary parts:</p> <p>In my login page, I create a Date object and put it into my session, I import <em>java.util.Date</em>:</p> <pre><code>&lt;% Calendar c = Calendar.getInstance(); Date l = new Date(c.get(Calendar.YEAR),c.get(Calendar.MONTH),c.get(Calendar.DAY_OF_MONTH),c.get(Calendar.HOUR),c.get(Calendar.MINUTE)); //the midnight, that's the first second of the day. //Globals.customer.lastlogin=l; session.setAttribute("lastlogin", l); %&gt; </code></pre> <p>Then when login is successful, I update my database in my servlet, this servlet is called when login button is clicked:</p> <pre><code>try { int result=-1; PreparedStatement checkDB = (PreparedStatement) con.prepareStatement( "UPDATE users set lastlogin='"+(Date)session.getAttribute("lastlogin")+"' where username='"+session.getAttribute("username")+"'"); result= checkDB.executeUpdate(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } </code></pre> <p>I keep lastlogin as a Date variable in my Database. But I get the following error when trying to update last login:</p> <pre><code>com.mysql.jdbc.MysqlDataTruncation: Data truncation: Incorrect date value: 'Wed Jul 02 05:49:00 VET 3913' for column 'lastlogin' at row 1 at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2936) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1601) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1710) at com.mysql.jdbc.Connection.execSQL(Connection.java:2436) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1402) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1694) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1608) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1593) at classes.LoginServlet.service(LoginServlet.java:94) at javax.servlet.http.HttpServlet.service(HttpServlet.java:723) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:662) </code></pre> <p>Can anyone help me with this? Thanks</p>
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    1. COMay be this can help - http://stackoverflow.com/questions/530012/how-to-convert-java-util-date-to-java-sql-date
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      1. USSahil Dave
 

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