Create datasource using Druid connection pool

Use Druid Connection pool creation DataSource( data source )

There are two ways to create

The first one is

Use Map aggregate , Set each attribute to create

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.pool.DruidDataSourceFactory;
import org.apache.commons.dbutils.QueryRunner;
import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;
public class Test01 {
    
    public static void main(String[] args) throws Exception {
    
        Map<String, String> map = new HashMap();
        // Set up URL
        map.put(DruidDataSourceFactory.PROP_URL, "jdbc:mysql://10.10.10.134:3306/java20");
        // Set the drive Driver
        map.put(DruidDataSourceFactory.PROP_DRIVERCLASSNAME, "com.mysql.jdbc.Driver");
        // Set the username 
        map.put(DruidDataSourceFactory.PROP_USERNAME,"root");
        // Set the password 
        map.put(DruidDataSourceFactory.PROP_PASSWORD,"123456");

        // create data source 
        DataSource dataSource = DruidDataSourceFactory.createDataSource(map);
    }
}

The second kind

Use properties Configuration file

Create a... In the project root directory resources File and mark it as a resource directory

Create a db.properties And write the following configuration

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://10.10.10.134:3306/java20
username=root
password=123456

To write java class

import com.alibaba.druid.pool.DruidDataSourceFactory;
import javax.sql.DataSource;
import java.io.IOException;
import java.util.Properties;
public class Test02 {
    
    public static void main(String[] args) throws Exception {
    
        Properties properties = new Properties();
        properties.load(Test02.class.getClassLoader().getResourceAsStream("db.properties"));
        DataSource dataSource = DruidDataSourceFactory.createDataSource(properties);
    }
}