java 读取txt文件乱码

private void msgTxt(){

try {

InputStreamReader isr = new InputStreamReader(new FileInputStream("文件路径"), "UTF-8"); //设置为UTF-8

BufferedReader br = new BufferedReader(isr);

String s1 = null;

while((s1 = br.readLine()) != null) {

System.out.println(s1.toString());

}

br.close();

isr.close();

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}