xml檔案  一定要使用與  mysql8.0   相對於的   connect jar   包
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/mybatis?characterEncoding=utf8&useSSL=false&serverTimezone=UTC&rewriteBatchedStatements=true
jdbc.username=root
jdbc.password=root

例項

package itheima;


import java.sql.*;

public class JdbcTest {
public static void main(String[] args) {
    Connection connection = null;
    PreparedStatement preparedStatement = null;
    ResultSet resultSet = null;

    try {
        // 載入資料庫驅動
        Class.forName("com.mysql.cj.jdbc.Driver");

        // 通過驅動管理類獲取資料庫連結
        connection = DriverManager.getConnection
                ("jdbc:mysql://localhost:3306/bank?characterEncoding=utf8&useSSL=false&serverTimezone=UTC&rewriteBatchedStatements=true", "root", "root");
        // 定義sql語句 ?表示佔位符
        String sql = "insert into account values (null , 'xilali' , 10)";

        // 獲取預處理statement
        preparedStatement = connection.prepareStatement(sql);
        preparedStatement.executeUpdate();
        // 設定引數，第一個引數為sql語句中引數的序號（從1開始），第二個引數為設定的引數值
        //preparedStatement.setString(1, "王五");

      //  preparedStatement.setString(1, "%王%");
        // 向資料庫發出sql執行查詢，查詢出結果集
        /*resultSet = preparedStatement.executeQuery();
        // 遍歷查詢結果集
        while (resultSet.next()) {
            System.out.println(resultSet.getString("id") + "  " + resultSet.getString("name"));
        }*/
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // 釋放資源
        if (resultSet != null) {
            try {
                resultSet.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        if (preparedStatement != null) {
            try {
                preparedStatement.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        if (connection != null) {
            try {
                connection.close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
}
 

}