以下代码，网址才不过是2K的歌词文件，然后制定保存目录，下载下来有200多K，并且打不开.....这是怎么回事？

怎么下载网址：http://s.geci.me/lrc/365/36503/3650301.lrc

并且能制定保存在缓存上面呢？

package china.testthree; import android.os.AsyncTask; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.Log; import java.io.*; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; public class MainActivity extends AppCompatActivity { private String path = "http://s.geci.me/lrc/365/36503/3650301.lrc"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); new DownTash().execute(path); } class DownTash extends AsyncTask { @Override protected File doInBackground(String... strings) { String url = strings[0]; BufferedInputStream bis = null; BufferedOutputStream bos = null; HttpURLConnection conn = null; try { URL url1 = new URL(url); conn = (HttpURLConnection) url1.openConnection(); conn.setRequestMethod("GET"); conn.setReadTimeout(3000); File file = new File(getApplicationContext().getExternalCacheDir().getAbsolutePath(), "111.lrc"); Log.i("ddd", file.getPath()); bis = new BufferedInputStream(conn.getInputStream()); bos = new BufferedOutputStream(new FileOutputStream(file)); byte[] bytes = new byte[1024]; int len; while ((len = bis.read()) != -1) { bos.write(bytes, 0, len); } } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } finally { try { bis.close(); bos.close(); conn.disconnect(); } catch (IOException e) { e.printStackTrace(); } } return null; } } }