数据库连接池的使用（c3p0，Druid）

时间：2020-01-14 16:38:30 阅读：119 评论：0 收藏：0 [点我收藏+]

标签：bsp rgs comm code lib proxy int inf mysql

package com.fgy.datasource.c3p0;

import com.mchange.v2.c3p0.ComboPooledDataSource;

import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.SQLException;

/**
 * c3p0的使用
 */
public class C3P0Demo {
    public static void main(String[] args) throws SQLException {
        // 使用默认配置
        // DataSource dataSource = new ComboPooledDataSource();
        // 使用指定名称配置
        DataSource dataSource = new ComboPooledDataSource("otherc3p0");
        
        Connection conn = dataSource.getConnection();
        System.out.println(conn); // com.mchange.v2.c3p0.impl.NewProxyConnection@41fecb8b
    }
}

配置文件：

　　技术图片

package com.fgy.datasource.druid;

import com.alibaba.druid.pool.DruidDataSourceFactory;

import javax.sql.DataSource;
import java.io.InputStream;
import java.sql.Connection;
import java.util.Properties;

/**
 * Druid的使用
 */
public class DruidDemo {
    public static void main(String[] args) throws Exception {
        Properties properties = new Properties();
        InputStream is = DruidDemo.class.getClassLoader().getResourceAsStream("druid.properties");
        properties.load(is);
        DataSource dataSource = DruidDataSourceFactory.createDataSource(properties);
        
        Connection conn = dataSource.getConnection();
        System.out.println(conn); // com.mysql.jdbc.JDBC4Connection@79d8407f
    }
}