mysql jdbc查询数据库乱码

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.Properties;

public class MySQLExample {
    public static void main(String[] args) {
        try {
            String url = "jdbc:mysql://localhost:3306/mydatabase?useUnicode=yes&characterEncoding=UTF-8";
            Properties props = new Properties();
            props.setProperty("user", "username");
            props.setProperty("password", "password");
            props.setProperty("useUnicode", "yes");
            props.setProperty("characterEncoding", "UTF-8");

            Connection conn = DriverManager.getConnection(url, props);
            Statement stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("SELECT * FROM example");

            while (rs.next()) {
                String name = rs.getString("name");
                System.out.println("Name: " + name);
            }

            rs.close();
            stmt.close();
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}