在resources目录下定义db.properties文件
driverClassName=com.mysql.jdbc.Driver url=jdbc:mysql:////jdbcdemo username=root password=root
获取文件信息:
public static void main(String[] args) throws IOException { ClassLoader loader = Thread.currentThread().getContextClassLoader(); InputStream resourceAsStream = loader.getResourceAsStream("db.properties"); Properties p = new Properties(); p.load(resourceAsStream); System.out.println(p.getProperty("driverClassName")); }