java连oracle

下载连接驱动

安装完oracle之后 D:\app\Administrator\product\11.2.0\dbhome_1\jdbc\lib 目录下拷贝

支持jdk1.6以上

From.java

import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.ResultSet;
import java.sql.SQLException;

public class From extends JFrame {
    private JPanel jPanel;
    private JButton button1;
    private JButton button2;
    private JTextField jTextField;

    From() {
        init();
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("From");
        frame.setContentPane(new From().jPanel);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.pack();
        frame.setSize(600, 500);
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

    private void init() {
        Button1ClickListener buttonClickListener1 = new Button1ClickListener();
        Button2ClickListener buttonClickListener2 = new Button2ClickListener();
        button1 = new JButton("增删改");
        button2 = new JButton("查询");
        jTextField = new JTextField(10);
        jPanel.add(button1);
        jPanel.add(button2);
        jPanel.add(jTextField);
        button1.addActionListener(buttonClickListener1);
        button2.addActionListener(buttonClickListener2);
    }
    //增删改监听
    class Button1ClickListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            ConnOracle connOracle = new ConnOracle();
            int count = connOracle.insert();
            if (count != 0) {
                JOptionPane.showMessageDialog(null, "连接成功更改" + count + "行数据", "提示", JOptionPane.INFORMATION_MESSAGE);
            } else {
                JOptionPane.showMessageDialog(null, "数据异常", "提示", JOptionPane.ERROR_MESSAGE);
            }
        }
    }
    //查询监听
    class Button2ClickListener implements ActionListener {
        String str;

        public void actionPerformed(ActionEvent e) {
            ConnOracle connOracle = new ConnOracle();
            ResultSet rs = connOracle.query();
            try {
                if (rs != null) {
                    while (rs.next()) {
                        jTextField.setText(rs.getString(1));
                        String str = rs.getString("name");
                    }
                } else {
                    JOptionPane.showMessageDialog(null, "数据异常", "提示", JOptionPane.ERROR_MESSAGE);
                }
            } catch (SQLException e1) {
                e1.printStackTrace();
            }
        }
    }
}

ConnOracle.java

import java.sql.*;

public class ConnOracle {

    private static String user = "MES";
    private static String password = "zidonghua";
    private static String url = "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
    // 创建一个数据库连接
    Connection connection = null;
    // 创建预编译语句对象，一般都是用这个而不用Statement
    Statement pstm = null;
    // 创建一个结果集对象
    ResultSet rs = null;

    //插入，更新，删除
    public int insert() {
        int count=0;
        String str = "insert into FRUITS  (ID,NAME,PLACE,AMOUNT) values(6,'土豆','山东',99)";
        try {
            connection = DriverManager.getConnection(url, user, password);
            pstm = connection.createStatement();
            count = pstm.executeUpdate(str);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return count;
    }
    //查询
    public ResultSet query() {
        ResultSet  rs=null;
        String str = "select NAME from FRUITS where id=8";
        try {
            connection = DriverManager.getConnection(url, user, password);
            pstm = connection.createStatement();
            rs = pstm.executeQuery(str);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return rs;
    }
}