如何在MySQL中使用连接池来优化连接性能？

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.23</version>
</dependency>
<dependency>
    <groupId>com.zaxxer</groupId>
    <artifactId>HikariCP</artifactId>
    <version>4.0.3</version>
</dependency>

# 数据库连接配置
spring.datasource.url=jdbc:mysql://localhost:3306/mydatabase
spring.datasource.username=root
spring.datasource.password=123456

# 连接池配置
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.hikari.maximum-pool-size=10
spring.datasource.hikari.minimum-idle=5
spring.datasource.hikari.idle-timeout=30000

import com.zaxxer.hikari.HikariDataSource;

// 创建连接池对象
HikariDataSource dataSource = new HikariDataSource();
dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/mydatabase");
dataSource.setUsername("root");
dataSource.setPassword("123456");
dataSource.setMaximumPoolSize(10);
dataSource.setMinimumIdle(5);
dataSource.setIdleTimeout(30000);

import java.sql.Connection;
import java.sql.SQLException;

// 获取连接对象
Connection connection = dataSource.getConnection();

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

// 查询操作示例
String sql = "SELECT * FROM user";
try (PreparedStatement statement = connection.prepareStatement(sql);
     ResultSet resultSet = statement.executeQuery()) {
    while (resultSet.next()) {
        // 处理查询结果
        int id = resultSet.getInt("id");
        String name = resultSet.getString("name");
        // ...
    }
} catch (SQLException e) {
    // 异常处理
    e.printStackTrace();
}

// 关闭连接对象
if (connection != null) {
    try {
        connection.close();
    } catch (SQLException e) {
        e.printStackTrace();
    }
}