Bom gente, olá a todos primeiramente. Em um dos meus projetos, eu estou usando JDBC puro para a conexão e manipulação do banco de dados. Quando eu vou executar a seguinte classe:
[code]public static Professor loginProf(String matricula, String senha)
{
Professor prof = null;
try
{
String sql = "SELECT * FROM aluno WHERE matriculaProf = ? AND senha = ?;";
Conexao conex = new Conexao("jdbc:mysql://localhost:3306/mydb",
"com.mysql.jdbc.Driver", "root", "alunolab");
Connection con = conex.obterConexao();
PreparedStatement comando = con.prepareStatement(sql);
comando.setString(1, matricula);
comando.setString(2, senha);
ResultSet resultSet = comando.executeQuery();
if(resultSet.next())
{
prof = new Professor(resultSet.getString("matriculaProf"),
resultSet.getString("senha"));
}
resultSet.close();
comando.close();
con.close();
}catch ( Exception e)
{
System.out.println(e.getMessage());
e.printStackTrace();
}
prof = new Professor(matricula, senha);
return prof;
}[/code]
Aparece a seguinte exceção:
Unknown column ‘matriculaProf’ in 'where clause’
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column ‘matriculaProf’ in 'where clause’
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1052)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3597)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3529)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1990)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2151)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2625)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2119)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2281)
at model.dao.ProfessorDAO.loginProf(ProfessorDAO.java:78)
at controller.LoginServlet.processRequest(LoginServlet.java:35)
at controller.LoginServlet.doPost(LoginServlet.java:93)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:498)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:562)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:394)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Será que alguém aqui poderia me ajudar o com seguinte erro?
Desde já muito grato! 