java中使用FileInputstream进行读取文本字符

 try {
            //String sourcePath="https://gist.githubusercontent.com/CootCraig/6186298/raw/26fb35a849fac60cb3653e9b8b9877af5ce39f66/logger.js";
            //readHtmlFile(sourcePath);
            FileInputStream fs = new FileInputStream("/home/devbwh/IdeaProjects/test/src/1.txt");
            byte[] buffer = new byte[1024];
            int content;
            while ((content = fs.read()) != -1) {
                // convert to char and display it
                System.out.print((char) content);
            }
            fs.close();
        } catch (Exception e) {
            e.printStackTrace();
        }