解析時(shí)：InputStream inputStream = file.getInputStream();
InputStreamReader is =new InputStreamReader(inputStream,"utf-8");
注意在生成輸入流時(shí)設(shè)置utf-8編碼。
導(dǎo)出時(shí)（這里是使用PrintWriter）：在生成輸出流時(shí)設(shè)置utf-8編碼
Writer write =new OutputStreamWriter(new FileOutputStream(new File(file,fileName)), "UTF-8");
PrintWriter printWriter=new PrintWriter(write);
