代码如下:
import java.io.FileNotFoundException; import java.io.IOException; import java.sql.Connection; import java.sql.SQLException; import java.util.Properties; import org.apache.commons.dbcp.BasicDataSource; public class DBUtil { private static BasicDataSource ds; static { Properties prop = new Properties(); try { prop.load(DBUtil.class.getClassLoader().getResourceAsStream("config.properties"));//类目录下要有对应的文件 String className = prop.getProperty("classname"); String url = prop.getProperty("url"); String password = prop.getProperty("password"); String username = prop.getProperty("username"); ds = new BasicDataSource(); ds.setDriverClassName(className); ds.setUrl(url); ds.setUsername(username); ds.setPassword(password); System.out.println("连接成功!"); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } public static Connection getConnection() throws SQLException { return ds.getConnection(); } public static void closeConnection(Connection conn) { try { conn.commit(); conn.close(); } catch (SQLException e) { e.printStackTrace(); } } }