Java Oracle插入记录

我想从文本字段在数据库中插入一条记录，但它不起作用。我正在使用Oracle 10g。我对所有这些都是新手。我的全部代码都在这里，但不起作用的部分是私有的void jButton2ActionPerformed（java.awt.event.ActionEvent evt）按钮代码：

    package project1;
    import java.sql.*;
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.PreparedStatement;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;
    import java.util.logging.Level;
    import java.util.logging.Logger;
    import javax.swing.event.ListSelectionEvent;
    import javax.swing.event.ListSelectionListener;
    import static project1.InsertFrame.connection;
    import javax.swing.table.DefaultTableModel;


    public class CRUD extends javax.swing.JFrame {

    //static Connection connection = null; 
         //Connection connection = null; 

          public CRUD() {

                     try {
                  initComponents();
                  String driverName = "oracle.jdbc.driver.OracleDriver";
                  Class.forName(driverName);
                  String serverName = "192.168.0.2";
                  String portNumber = "1521";
                  String sid = "XE";
                  String url = "jdbc:oracle:thin:@"+serverName+":"+portNumber+":"+sid;
                  String userName = "HR";
                  String password = "hr";
                         try {
                             connection = DriverManager.getConnection(url,userName,password);
                         } catch (SQLException ex) {
                             Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, ex);
                         }
                      try {
             String temp="";
             Statement stmt = connection.createStatement();
             ResultSet rs = stmt.executeQuery("SELECT DISTINCT URUN_TIPI FROM KART");


           while(rs.next()) // dönebildiği süre boyunca
           {
               String s = rs.getString("URUN_TIPI") ; //kolon isimleri oluşturuldu
               temp+=s+"_";
           }        

           Object [] tem_obj;

           tem_obj=temp.split("_");
           listOgrenciler.setListData(tem_obj);

       } catch (SQLException ex) {
           Logger.getLogger(edit.class.getName()).log(Level.SEVERE, null, ex);
       }

          } catch (ClassNotFoundException ex) {
              Logger.getLogger(CRUD.class.getName()).log(Level.SEVERE, null, ex);
          }    


             listOgrenciler.addListSelectionListener(new ListSelectionListener() {

               @Override
               public void valueChanged(ListSelectionEvent arg0) {
                   if (!arg0.getValueIsAdjusting()) {
                       try {
                         Statement stmtx = connection.createStatement();
                           Object[] sss=listOgrenciler.getSelectedValues();
                         String swhere="" ;
                         for (int i = 0; i < sss.length; i++) {
                               swhere+=sss[i].toString()+",";
                               }
                            swhere=swhere.substring(0,swhere.length()-1);
                         ResultSet rsx = stmtx.executeQuery("SELECT * FROM KART where URUN_TIPI in ('"+swhere+"')") ;
                         String temp="";
                         while(rsx.next()) // dönebildiği süre boyunca
                           {
                               String s = " * "+rsx.getString("BOLGE")+" - "+rsx.getString("SEHIR")+" - "+rsx.getString("LOKASYON")+" - "+rsx.getString("SERI_NO")+" - "+rsx.getString("URUN_TIPI")+" - "+rsx.getString("URUN_KODU")+" - "+rsx.getString("FAZ")+" - "+rsx.getString("SEVK_TARIH")+" - "+rsx.getString("ACIKLAMA")   ; //kolon isimleri oluşturuldu
                               temp+=s+"_";
                           }        

                             Object [] tem_obj;
                             tem_obj=temp.split("_");
                           String ara="";
                             for (int i = 0; i < tem_obj.length; i++) {
                               ara+=tem_obj[i].toString()+"\n";
                             }
                            texttoarea.setText(ara);

                       } catch (SQLException ex) 
                       {
                           Logger.getLogger(edit.class.getName()).log(Level.SEVERE, null, ex);
                       }         
                   }
               }
           });



        }
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        // TODO add your handling code here:

        try{

      String sqlInsert="INSERT INTO KART VALUES (?,?,?,?,?,?,?,?,?,?)";

      PreparedStatement psta=connection.preparedStatement(sqlInsert);
      psta.setString(1, jTextField1.getText());
      psta.setString(2, jTextField2.getText());
      psta.setString(3, jTextField3.getText());
      psta.setString(4, jTextField4.getText());
      psta.setString(5, jTextField5.getText());
      psta.setString(6, jTextField6.getText());
      psta.setString(7, jTextField7.getText());
      psta.setString(8, jTextField8.getText());
      psta.setString(9, jTextField9.getText());
      psta.setString(10, jTextField10.getText());

      psta.execute();
      psta.close();
      }
      catch(Exception e)
              {
              System.out.println(e.getCause());
              }
    } 
 public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(CRUD.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(CRUD.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(CRUD.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(CRUD.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new CRUD().setVisible(true);
            }
        });
    }
    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel10;
    private javax.swing.JLabel jLabel11;
    private javax.swing.JLabel jLabel12;
    private javax.swing.JLabel jLabel13;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JLabel jLabel7;
    private javax.swing.JLabel jLabel8;
    private javax.swing.JLabel jLabel9;
    private javax.swing.JScrollBar jScrollBar2;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane3;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField10;
    private javax.swing.JTextField jTextField2;
    private javax.swing.JTextField jTextField3;
    private javax.swing.JTextField jTextField4;
    private javax.swing.JTextField jTextField5;
    private javax.swing.JTextField jTextField6;
    private javax.swing.JTextField jTextField7;
    private javax.swing.JTextField jTextField8;
    private javax.swing.JTextField jTextField9;
    private javax.swing.JList listOgrenciler;
    private javax.swing.JTextArea texttoarea;
    // End of variables declaration                   
}

packageproject1；
导入java.sql.*；
导入java.sql.Connection；
导入java.sql.DriverManager；
导入java.sql.PreparedStatement；
导入java.sql.ResultSet；
导入java.sql.SQLException；
导入java.sql.Statement；
导入java.util.logging.Level；
导入java.util.logging.Logger；
导入javax.swing.event.ListSelectionEvent；
导入javax.swing.event.ListSelectionListener；
导入静态project1.InsertFrame.connection；
导入javax.swing.table.DefaultTableModel；
公共类CRUD扩展了javax.swing.JFrame{
//静态连接=空；
//连接=空；
公共积垢（）{
试一试{
初始化组件（）；
String driverName=“oracle.jdbc.driver.OracleDriver”；
类forName（driverName）；
字符串serverName=“192.168.0.2”；
字符串portNumber=“1521”；
字符串sid=“XE”；
String url=“jdbc:oracle:thin:@”+serverName+：“+portNumber+”：“+sid；
字符串userName=“HR”；
字符串密码=“hr”；
试一试{
connection=DriverManager.getConnection（url、用户名、密码）；
}catch（SQLException-ex）{
Logger.getLogger（CRUD.class.getName（））.log（Level.SEVERE，null，ex）；
}
试一试{
字符串temp=“”；
语句stmt=connection.createStatement（）；
结果集rs=stmt.executeQuery（“从KART中选择不同的URUN_TIPI”）；
while（rs.next（））//dönebildiği süre boyunca
{
String s=rs.getString（“URUN_TIPI”）；//kolon isimleri oluşturuldu
温度+=s+“u2;”；
}        
对象[]tem_obj；
tem_obj=温度拆分（“”）；
listOgrenciler.setListData（tem_obj）；
}catch（SQLException-ex）{
Logger.getLogger（edit.class.getName（））.log（Level.SEVERE，null，ex）；
}
}捕获（ClassNotFoundException ex）{
Logger.getLogger（CRUD.class.getName（））.log（Level.SEVERE，null，ex）；
}    
addListSelectionListener（新建ListSelectionListener（））{
@凌驾
public void值已更改（ListSelectionEvent arg0）{
如果（！arg0.getValueIsAdjusting（））{
试一试{
语句stmtx=connection.createStatement（）；
Object[]sss=listOgrenciler.getSelectedValues（）；
字符串swhere=“”；
对于（int i=0；icannot find symbol symbol:
method preparedStatement(String)
location: variable connection of type Connection