配置mysql数据库连接路径

import mysql.connector

# 创建数据库连接
mydb = mysql.connector.connect(
  host="localhost",
  user="username",
  passwd="password",
  database="database_name"
)

# 执行数据库操作
mycursor = mydb.cursor()
mycursor.execute("SELECT * FROM table_name")
result = mycursor.fetchall()

# 关闭数据库连接
mydb.close()

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

public class MySQLConnector {
    public static void main(String[] args) {
        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;

        try {
            // 加载MySQL JDBC驱动
            Class.forName("com.mysql.jdbc.Driver");

            // 创建数据库连接
            connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/database_name", "username", "password");

            // 创建Statement对象
            statement = connection.createStatement();

            // 执行数据库查询
            resultSet = statement.executeQuery("SELECT * FROM table_name");

            // 处理查询结果
            while (resultSet.next()) {
                // TODO: 处理每一行数据
            }
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        } finally {
            // 关闭连接和释放资源
            try {
                if (resultSet != null) {
                    resultSet.close();
                }
                if (statement != null) {
                    statement.close();
                }
                if (connection != null) {
                    connection.close();
                }
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
}