IO错误：网络适配器无法建立给出的连接错误

Question

我想使用CSV阅读器将值上传到oracle数据库，

我有这样的数据库连接

package com.test.examples;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

/**
 * @author henry gunawan
 *
 */
public class DBConnection
{
        public static Connection getConnection() throws SQLException, ClassNotFoundException
        {
                //Class.forName("com.mysql.jdbc.Driver");
                 Class.forName("oracle.jdbc.driver.OracleDriver");

                Connection connection = DriverManager.getConnection("jdbc:oracle:thin:@10.40.43.133:1526:opr", "user", "Password");

                return connection;
        }

        public static void main(String[] args)
    {
                try
        {
                getConnection();
        }
        catch (SQLException | ClassNotFoundException e)
        {
                e.printStackTrace();
        }
    }
}

我有这样的主班

package com.test.examples;

import java.io.FileReader;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.Statement;

import com.opencsv.CSVReader;

public class ImportCsv
{
        public static void main(String[] args)
        {
                readCsv();
                readCsvUsingLoad();
        }

        private static void readCsv()
        {

                try (CSVReader reader = new CSVReader(new FileReader("billy.csv"), ';'); Connection connection = DBConnection.getConnection();)
                {
                        String insertQuery = "Insert into EDC_LOT_PAIRTO_MERCHANT (edc,num, merchant) values (?,?,?)";
                        PreparedStatement pstmt = connection.prepareStatement(insertQuery);
                        String[] rowData = null;
                        int i = 0;
                        while((rowData = reader.readNext()) != null){
                        for (String data : rowData)
                        {
                                pstmt.setString((i % 3) + 1, data);

                                if (++i % 3 == 0)
                                        pstmt.addBatch();// add batch

                                if (i % 30 == 0)// insert when the batch size is 10
                                        pstmt.executeBatch();
                        }}
                        System.out.println("Data Successfully Uploaded");
                }
                catch (Exception e)
                {
                        e.printStackTrace();
                }

        }

        private static void readCsvUsingLoad()
        {
                try (Connection connection = DBConnection.getConnection())
                {

                        String loadQuery = "LOAD DATA LOCAL INFILE '" + "C:\\billy.csv" + "' INTO TABLE EDC_LOT_PAIRTO_MERCHANT  FIELDS TERMINATED BY ';'"
                                        + " LINES TERMINATED BY '\n' (edc, num, merchant) ";
                        System.out.println(loadQuery);
                        Statement stmt = connection.createStatement();
                        stmt.execute(loadQuery);
                }
                catch (Exception e)
                {
                        e.printStackTrace();
                }
        }

}

我遇到了这样的错误，好像我的连接是正确的，但是返回给出了错误。

java.sql.SQLRecoverableException: IO Error: The Network Adapter could not establish the connection
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:489)
    at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:553)
    at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:254)
    at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
    at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:528)
    at java.sql.DriverManager.getConnection(DriverManager.java:664)
    at java.sql.DriverManager.getConnection(DriverManager.java:247)
    at com.javacodegeeks.examples.DBConnection.getConnection(DBConnection.java:18)
    at com.javacodegeeks.examples.ImportCsv.readCsv(ImportCsv.java:21)
    at com.javacodegeeks.examples.ImportCsv.main(ImportCsv.java:14)
Caused by: oracle.net.ns.NetException: The Network Adapter could not establish the connection
    at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:439)
    at oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:454)
    at oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:693)
    at oracle.net.ns.NSProtocol.connect(NSProtocol.java:251)
    at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1140)
    at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:340)
    ... 9 more
Caused by: java.net.ConnectException: Connection timed out: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method)
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85)
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:149)
    at oracle.net.nt.ConnOption.connect(ConnOption.java:133)
    at oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:405)
    ... 14 more

在我与mysql的连接中，此代码工作正常，但是当我尝试连接至oracle时，出现此错误。