java链接数据库（C3P0）

import java.sql.Connection;
import java.sql.SQLException;

import javax.sql.DataSource;

import com.mchange.v2.c3p0.ComboPooledDataSource;

public class C3P0Utils {
	public static ComboPooledDataSource cpds= new ComboPooledDataSource();
	public static DataSource getDataSource(){
		return cpds;
	}
	public static Connection getConnection(){
		try {
			return cpds.getConnection();
		} catch (SQLException e) {
			e.printStackTrace();
			throw new RuntimeException("数据库连接失败");
		}
	}
}