同样的代码在java中工作,但在安卓中不工作
try {
//link below might contain offensive advertisemensts
url = new URL("http://wasabisyrup.com/archives/GWB5lyn4FM8");
urlConnection = (HttpURLConnection) url.openConnection();
int c = urlConnection.getResponseCode();
.
.
.
这段代码在JavaIDE上编译时给出响应代码200,但在安卓上运行asynctask时抛出403错误。这让我快发疯了。请帮忙
安卓代码示例:
public class MainActivity extends Activity {
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Code here executes on main thread after user presses button
new DownloadFilesTask().execute();
}
});
}
private class DownloadFilesTask extends AsyncTask<Void, Void, Void> {
protected Void doInBackground(Void... params) {
CookieManager cookieManager = new CookieManager();
CookieHandler.setDefault(cookieManager);
URL url;
HttpURLConnection urlConnection = null;
try {
url = new URL("http://wasabisyrup.com/archives/GWB5lyn4FM8");
urlConnection = (HttpURLConnection) url.openConnection();
int c = urlConnection.getResponseCode();
System.out.println(c);
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
}catch(Exception e){
e.printStackTrace();
} finally {
urlConnection.disconnect();
}
return null;
}
protected void onProgressUpdate(Integer... progress) {
//setProgressPercent(progress[0]);
}
protected void onPostExecute() {
}
}
我得到的输出是:
I/System.out: 403 W/System.err: java.io.FileNotFoundException: http://wasabisyrup.com/archives/GWB5lyn4FM8 at com.安卓.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:238) W/System.err: at ml.melun.junhea.web_test.MainActivity$DownloadFilesTask.doInBackground(MainActivity.java:47) at ml.melun.junhea.web_test.MainActivity$DownloadFilesTask.doInBackground(MainActivity.java:35) at 安卓.os.AsyncTask$2.call(AsyncTask.java:295) at java.util.concurrent.FutureTask.run(FutureTask.java:237) at 安卓.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) at java.lang.Thread.run(Thread.java:818)
# 1 楼答案
使用代理并检查每种情况下发送的内容。您可能会发现一些额外的头文件可能会导致问题,具体取决于后端处理它们的方式