FileReader和BufferedReader的区别

1.FileReader不能一行行读

        FileReader fr = null;
        try {
            fr = new FileReader(new File(path));
            StringBuffer stringBuffer = new StringBuffer();
            int ch;
            while ((ch = fr.read()) != -1) {
                stringBuffer.append(ch);
            }
            System.out.println(stringBuffer);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            IOUtils.close(fr);//关闭流
        }

2.BufferedReader可以一行行地读

        BufferedReader br = null;
        try {
            br = new BufferedReader(new FileReader(new File(path)));
            StringBuffer stringBuffer = new StringBuffer();
            String line;
            while ((line = br.readLine()) != null) {
                stringBuffer.append(line);
　　　　　　　　　 }
            System.out.println(stringBuffer);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            IOUtils.close(br);//关闭流
        }