DataInputStream的readline不能读取中文的解决方法

<strong><span style="font-size: 13px;">import java.io.BufferedReader; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; public class Interview { @SuppressWarnings("deprecation") public Interview() throws IOException { String file = "interview.txt"; DataOutputStream outputStream = new DataOutputStream( new FileOutputStream(file)); String str = "上海外航商务旅行公司 (FASCO)，成立于1984年，隶属于中国民航华东管理局，是中国市场最早提供一站式商务旅行管理的大型国有企业集团。"; byte[] b=str.getBytes(); outputStream.write(b, 0, b.length); outputStream.close(); DataInputStream inputStream = new DataInputStream(new FileInputStream( file)); <span style="background-color: #33ffff;"> BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); </span> System.out.println(reader.readLine()); reader.close(); inputStream.close(); } public static void main(String[] args) throws IOException { new Interview(); } } </span></strong>