1. 官網下載

2. 解壓

3. 匯入驅動

1、右鍵工程，build path

2、Libraries–>Add External JARs–>選擇mysql安裝目錄下的jar包

3、此時在我們的工程下就有了

4. 編寫測試程式碼

1.資料庫連線

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

import com.mysql.jdbc.Connection;

public class DBUtil {
    //1、載入驅動
    static{
        try
 
 {
            Class.forName("com.mysql.jdbc.Driver");
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }

    //2、連線。返回連線，以便其它地方使用
    private static String url="jdbc:mysql://127.0.0.1:3306/test";
    private static String name="root";
    private static String password="960926"
 
;
    private static Connection connection=null;
    public static Connection getConnection(){
        try {
            connection=(Connection) DriverManager.getConnection(url, name, password);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return connection;
    }
    public
 
 static void main(String[] args) {
        Connection connection=getConnection();
        if (connection!=null){
            System.out.println("連線成功");
        }
    }
}

輸出：

2.增刪改查語句

首先test資料庫中有一張user表，表為

查詢：

public static void inqurie() {
    Connection connection = DBUtil.getConnection();
    try {
        Statement statement = (Statement) connection.createStatement();
        String sql = "SELECT *FROM user";
        ResultSet resultSet = statement.executeQuery(sql);

        while (resultSet.next()) {
            String name = resultSet.getString("name");
            String password = resultSet.getString("password");
            System.out.println("使用者名稱： " + name + " 密碼： " + password);
            }

        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

public static void main(String[] args) {
    inqurie();
}

新增：

public static void add(){
        Connection connection = DBUtil.getConnection();
        String sql="INSERT INTO user (name,password) VALUE(?,?)";
        try {
            PreparedStatement preparedStatement=(PreparedStatement) connection.prepareStatement(sql);
            preparedStatement.setString(1, "王五");
            preparedStatement.setString(2, "789");
            preparedStatement.execute();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        add();
        inqurie();
    }

修改：

public static void update(){
        Connection connection = DBUtil.getConnection();
        try {
            Statement statement=(Statement) connection.createStatement();
            String sql="UPDATE user SET password='111' WHERE name='張三'";
            statement.executeUpdate(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
    public static void main(String[] args) {
        update();
        inqurie();
    }

刪除：

public static void delete() {
        Connection connection = DBUtil.getConnection();
        try {
            Statement statement = (Statement) connection.createStatement();
            String sql = "DELETE FROM user WHERE name='張三'";
            statement.executeUpdate(sql);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        delete();
        inqurie();
    }