读取配置文件的方法

第一种

try{
                //读取配置文件
                Properties prop = new Properties();            
                InputStream is = DBUtil.class.getClassLoader().getResourceAsStream("config.properties");
                prop.load(is);
                is.close();
        
                //获取驱动
                String driver = prop.getProperty("jdbc.className");
                
                System.out.println(driver);
                //获取地址
                url = prop.getProperty("jdbc.url");
                
                //获取用户名
                user = prop.getProperty("jdbc.username");
            
                //获取密码
                pwd = prop.getProperty("jdbc.password");
                            
                //注册驱动
                Class.forName(driver);
                
            }catch(Exception e){
                e.printStackTrace();
            }

第二种

            Properties prop = new Properties();
            try {
                String path = "WEB-INF/classes";
                path = request.getSession().getServletContext().getRealPath(path);

                InputStream is = new FileInputStream(path+"/arcgis.properties");
                prop.load(is);
                is.close();
                String mapserver = prop.getProperty("MAPSERVER");
                model.addAttribute("mapserver", mapserver);
                return "view/gp/bian_all";
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }