Java基于JDBCTemplate+Druid数据库连接池实现JDBC工具类

2021-9-12

package cn.imyjs.utils;

import com.alibaba.druid.pool.DruidDataSourceFactory;

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

public class JDBCutils {
    private static DataSource ds = null;
    static {
        try {
            //1.加载Properties配置文件 
            Properties pro = new Properties();
            //使用ClassLoder加载配置文件，获取字节输入流
            InputStream is = JDBCutils.class.getClassLoader().getResourceAsStream("druid.properties");
            pro.load(is);
            //2.初始化连接对象
            ds = DruidDataSourceFactory.createDataSource(pro);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //获取连接池对象
    public static DataSource getDataSource(){
        return ds;
    }

    //获取Connection连接对象
    public static Connection getConnection() throws SQLException {
        return ds.getConnection();
    }
}

依赖数据库配置文件：druid.properties

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/db1?useSSL=false
username=root
password=3105501510
initialSize=5
maxActive=10
maxWait=3000

依赖数据库连接池技术：阿里巴巴的Druid技术