数据库连接池 druid实例

import java.io.FileInputStream;
import java.util.Properties;
import javax.sql.DataSource;
import com.alibaba.druid.pool.DruidDataSourceFactory;

public class ReadJVM {
    public static DataSource ds = null;
    public static void main(String[] args) {

        Properties pps = System.getProperties();
       // pps.list(System.out);
        String path=ReadJVM.class.getClassLoader().getResource("resources/db.properties").getPath();
        try {
            FileInputStream in=new FileInputStream(path);
            pps.load(in);
            ds=DruidDataSourceFactory.createDataSource(pps);
            System.out.println(ds.getConnection().getMetaData().getURL());
            System.out.println(ds.getConnection().getMetaData().getUserName());

        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}