How to use MySQL's connection pool to optimize database connection management
Overview:
As the size of the application and the amount of concurrent access increase, optimizing database connection management becomes more and more important. The traditional database connection method has the overhead of creating and closing connections, while the connection pool can effectively manage connections and improve the performance and scalability of the database. This article will introduce how to use MySQL's connection pool to optimize database connection management, and give corresponding code examples.
HikariConfig config = new HikariConfig(); config.setMaximumPoolSize(10); // 设置最大连接数为10 config.setMinimumIdle(5); // 设置最小连接数为5 config.setConnectionTimeout(5000); // 设置连接超时时间为5秒 DataSource dataSource = new HikariDataSource(config);
DataSource dataSource = new BasicDataSource(); dataSource.setUrl("jdbc:mysql://localhost:3306/mydb"); dataSource.setUsername("username"); dataSource.setPassword("password"); Connection connection = dataSource.getConnection();
import java.sql.Connection; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import javax.sql.DataSource; import org.apache.commons.dbcp.BasicDataSource; public class ConnectionPoolExample { public static void main(String[] args) { DataSource dataSource = new BasicDataSource(); ((BasicDataSource) dataSource).setUrl("jdbc:mysql://localhost:3306/mydb"); ((BasicDataSource) dataSource).setUsername("username"); ((BasicDataSource) dataSource).setPassword("password"); try (Connection connection = dataSource.getConnection(); Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("SELECT * FROM users")) { while (resultSet.next()) { System.out.println(resultSet.getString("name")); } } catch (SQLException e) { e.printStackTrace(); } } }
Summary:
Using MySQL's connection pool can optimize database connection management and improve database performance and scalability. By introducing the connection pool library, configuring connection pool parameters, obtaining connections and using connections, we can operate the database more conveniently. I hope the content of this article can provide you with some help in database connection management.
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