URL url = new URL(arg0[1]);
HttpURLConnection c = (HttpURLConnection) url.openConnection();
c.setRequestMethod("GET");
c.setDoOutput(true);
c.connect();
String PATH = "/mnt/sdcard/Android/";
File file = new File(PATH);
file.mkdirs();
File outputFile = new File(file, "myGame.apk");
if(outputFile.exists()){
outputFile.delete();
}
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();
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File("mnt/sdcard/Android/myGame.apk")), "application/vnd.android.package-archive");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(intent);
我想做自动更新应用程序功能,它会下载 apk 文件并安装它。但是,当我通过 Java 下载并捕获异常时:java.io.FileNotFoundException http://192.168.2.143/myGame.apk
,其中 url[0]="http://192.168.2.143/myGame.apk",我使用设备中的浏览器打开http://192.168.2.143/myGame.apk
,可以下载 apk 并在 sdcard/Download 中/ 文件夹。我的清单中有 INTERNET 权限。任何想法?