如何删除＆＃34;用尽的结果集＆＃34;例外？

Question

我正在尝试执行以下代码，但是正在显示＆＃34; Exhausted Resultset＆＃34;例外。我怎么能摆脱它？任何与此问题相关的帮助都将不胜感激......

这是Exception我得到的......

java.sql.SQLException: Exhausted Resultset
    at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)
    at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:133)
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:199)
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:263)
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:271)
    at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:445)
    at oracle.jdbc.driver.OracleResultSetImpl.getString(OracleResultSetImpl.java:954)
    at oracle.jdbc.driver.OracleResultSet.getString(OracleResultSet.java:494)
    at ReadCol.data(ReadCol.java:47)
    at ReadCol.main(ReadCol.java:71)

这是我的代码

import java.io.BufferedWriter;
import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.List;    
import javax.swing.JOptionPane;

public class ReadCol {
    public String[] array;
    public BufferedWriter out;
    public int cnt = 0;
    public void data() throws Exception{
        try{
            Class.forName("oracle.jdbc.driver.OracleDriver");
            Connection conn= DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","System","mine");
            conn.setAutoCommit(false);
            Statement st=conn.createStatement();
            ResultSet rs=st.executeQuery("select * from ATTENDANCE");
            ResultSetMetaData rsmd = rs.getMetaData();
            System.out.println("No of columns in the table:"+ rsmd.getColumnCount());
            for (int i = 1; i <= rsmd.getColumnCount(); i++) {
                String  fname = rsmd.getColumnName(i);
                System.out.println("COLUMN NAME: " + fname);
            }
            System.out.println();
            while(rs.next()){
                File file = new File("E:\\eclipse\\workspace\\AutoAttendanceSystem\\res\\AttendanceData.csv");
                List<String> lines = Files.readAllLines(file.toPath(), StandardCharsets.UTF_8);
                for (String line : lines) {
                    array = line.split(",");
                    if( ( rs.getString(1) == null && array[0] == null || rs.getString(1) != null && rs.getString(1).equals(array[0]) ) && ( rs.getString(7) == null && array[6] == null|| rs.getString(7) != null && rs.getString(7).equals(array[6]) )){
                        JOptionPane.showMessageDialog(null, "Can't Update Because record already exist");
                        cnt++;
                    }
                }
            }
            if(cnt == 0){
                out.write(rs.getString("ATTENDANT_NAME") + ", ");
                out.write(rs.getString("ATTENDANT_AGE") + ", ");
                out.write(rs.getString("ATTENDANT_CONTACT_NO") + ", ");
                out.write(rs.getString("ATTENDANT_DEPARTMENT_NAME") + ", ");
                out.write(rs.getString("REGISTRATION_NUM") + ", ");
                out.write(rs.getString("ABSENT_PRESENT") + ", ");
                out.write(rs.getString("ATTENDANCE_TIME_DATE") + ", ");
                out.newLine();
                out.flush();
                System.out.println("updated, not already Exist");
                JOptionPane.showMessageDialog(null, "Updated");
            }
            out.close();
            conn.close();
        }catch (IOException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
    public static void main(String[] args) throws Exception{
        ReadCol r = new ReadCol();
        r.data();
    }
}