Java.sql.SQLException: [Microsoft][ODBC Driver Manager] Invalid cursor state when using MS SQL Sever 2008

hi
i am using jdbc/odbc connection and my code for database is

StringBuffer stringbufferdet=new StringBuffer("select phasevalue from T_PHASE where projectid = '"+projectId+"' and phaseid=");
    stringbufferdet.append("'");
    //stringbufferdet.append(vmetricresult2.elementAt(i));
    stringbufferdet.append(vmetricresult1.elementAt(i));
    stringbufferdet.append("'");
    String sdet = stringbufferdet.toString();
    System.out.println("----------------------2"+sdet);
    ps = con.prepareStatement(sdet);
    rs = ps.executeQuery();
    rs.next();
  
    phase2=rs.getInt(1);
  
    closeAll(con,ps,null,rs);

when i running code exception is coming

java.sql.SQLException: [Microsoft][ODBC Driver Manager] Invalid cursor state
 at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6958)
 at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7115)
 at sun.jdbc.odbc.JdbcOdbc.SQLGetDataInteger(JdbcOdbc.java:3812)
 at sun.jdbc.odbc.JdbcOdbcResultSet.getDataInteger(JdbcOdbcResultSet.java:5639)
 at sun.jdbc.odbc.JdbcOdbcResultSet.getInt(JdbcOdbcResultSet.java:582)
 at com.hps.dao.SearchReportDAO.getMetricResults(SearchReportDAO.java:1353)
 at com.hps.client.MetricsServlet.doPost(MetricsServlet.java:102)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:879)
 at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
 at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
 at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
 at java.lang.Thread.run(Thread.java:595)

Solution

Problem is coming due to wrong use of result set

use following line of code to retrive data from resultset

while(rs.next())

{

phase2=rs.getInt(1);

}