下午好！
请帮我在下载文件时处理网站上的授权。我开发了一个可以从网站下载更新的应用程序。该网站未使用授权，但现在它已经出现。我添加了授权代码，但是它不起作用，文件被下载但没有像不正确的文件格式那样启动。
现在我只是android中的初学者，可能是我什么都不懂，丢失了。
这是我的代码模块。
public void checkUpdate(Context contextf, String urlAdress) {
try {
HttpURLConnection c = (HttpURLConnection) new URL(urlAdress).openConnection();
c.setDoOutput(true);
c.setUseCaches(false);
// new strings in code for authorization \/
c.setRequestProperty("Authorization", "Basic " + Base64.encodeToString(("myUser:myPassword").getBytes(), Base64.NO_WRAP));
//\
c.connect();
String PATH = "/mnt/sdcard/Download/";
File file = new File(PATH);
file.mkdirs();
File outputFile = new File(file, "Update.apk");
FileOutputStream fos = new FileOutputStream(outputFile);
InputStream is = c.getInputStream();
byte[] buffer = new byte[1024];
int len1 = 0;
while ((len1 = is.read(buffer)) != -1) {
fos.write(buffer, 0, len1);
}
fos.close();
is.close();
PackageInfo infoNewApp = context.getPackageManager().getPackageArchiveInfo(PATH + "Update.apk", PackageManager.GET_META_DATA);
if (infoNewApp != null) {
ApplicationInfo appInfo = infoNewApp.applicationInfo;
if (Build.VERSION.SDK_INT >= 8) {
appInfo.sourceDir = PATH;
appInfo.publicSourceDir = PATH;
}
int vcodeNewApp = infoNewApp.versionCode;
PackageInfo infoApp = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
if (infoApp != null) {
int vcodeApp = infoApp.versionCode;
if (vcodeNewApp > vcodeApp) {
LaunchUpdate();
} else {
}
}
} else {
}
} catch (Exception e) {
Log.d(TAG, "Update error! " + e.getMessage());
}
}