java io流读文件，乱码问题

     原来读文件用 FileReader fr = new FileReader(文件路径);

                               BufferedReader br = new BufferedReader(fr);

        会出现乱码问题。

 

    后来发现要设置编码，如下

                   File file = new File(文件路径);
                  InputStreamReader read = new InputStreamReader(new FileInputStream(file),编码);
                  BufferedReader br = new BufferedReader(read);

    问题解决。