Android 获取下载文件的真实名字，android下载文件, public s

Android 获取下载文件的真实名字，android下载文件, public s

    public static String getReallyFileName(String url) {              String filename = "";              URL myURL;              HttpURLConnection conn = null;              if (url == null || url.length() < 1) {                  return null;              }              try {                  myURL = new URL(url);                  conn = (HttpURLConnection) myURL.openConnection();                  conn.connect();                  conn.getResponseCode();                  URL absUrl = conn.getURL();// 获得真实Url                  Log.e("H3c", "x:" + absUrl);                  // 打印输出服务器Header信息                  // Map<String, List<String>> map = conn.getHeaderFields();                  // for (String str : map.keySet()) {                  // if (str != null) {                  // Log.e("H3c", str + map.get(str));                  // }                  // }                  filename = conn.getHeaderField("Content-Disposition");// 通过Content-Disposition获取文件名，这点跟服务器有关，需要灵活变通                  if (filename == null || filename.length() < 1) {                      filename = absUrl.getFile();                  }              } catch (MalformedURLException e) {                  e.printStackTrace();              } catch (IOException e) {                  e.printStackTrace();              } finally {                  if (conn != null) {                      conn.disconnect();                      conn = null;                  }              }              return filename;          }