[android-developers] query about the usage of HttpsURLConnection
Hi all,
I am using HttpsURLConnection to post data to a web server.
Here is the function I wrote to get the result. (see the code below)
Very strangely, when the function be first called in my program it
would very likely return -1; and then I re-call the function after the
first call, it would always work ok.
So I wonder if there is anything I am missing in the code that when
the function be firstly called, the missing party is be initialized,
in that the followed call goes OK.
Could anyone give some hints on this?
Here is my code of the function:
=
Public MyReturn executeHttpsGet(Context context, String url) {
try {
URL u = new URL(url);
HttpsURLConnection httpConnection;
httpConnection = (HttpsURLConnection)u.openConnection();
httpConnection.setSSLSocketFactory(mSslContext.getSocketFactory());
httpConnection.setHostnameVerifier(mVerifier);
httpConnection.setDoInput(true);
httpConnection.setConnectTimeout(DEFAULTTIMEOUT);
httpConnection.setUseCaches(true);
httpConnection.connect();
ret.code = httpConnection.getResponseCode();
Log.i(TAG, ResponseCode: +String.valueOf(ret.code));
BufferedReader reader;
if (ret.code == 200) {
reader = new BufferedReader(new
InputStreamReader(httpConnection.getInputStream()));
} else {
reader = new BufferedReader(new
InputStreamReader(httpConnection.getErrorStream()));
}
String line;
ret.body = ;
while((line = reader.readLine())!= null) {
ret.body = ret.body + line;
}
ret.reader = new StringReader(ret.body);
PsLogUtil.appendMessage(context, TAG, Responsebody: +ret.body);
httpConnection.disconnect();
}catch (Exception e) {
e.printStackTrace();
Log.e(TAG, +e.getMessage());
ret.body = ;
ret.code = -1;
}
return ret;
}
Thanks very much for your kindly help.
Best
Hugo
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Re: [android-developers] query about the usage of HttpsURLConnection
Thanks for Vu-Nguyen's reply. I did more test, and here is some output
about the err:
=
W/System.err( 1390): java.lang.NullPointerException
W/System.err( 1390): at java.io.Reader.init(Reader.java:72)
W/System.err( 1390): at
java.io.InputStreamReader.init(InputStreamReader.java:72)
W/System.err( 1390): at
android.test.MyTestHttpRequest.executeHttpsPost(MyTestHttpRequest.java:262)
W/System.err( 1390): at
android.test.MyTestServerToolkitL.loginUser(MyTestUserServerToolkitL.java:40)
W/System.err( 1390): at
com.me.mytest.MyTestLoginActivity$6.run(PsLoginActivity.java:279)
=
It seems some null pointer is the reason? Is it?
Best
Hugo
2010/3/10 Trung-Liem Vo lie...@gmail.com
Hill Hugo,
Nothing miss in your code.
I had the same problem with you before when I got data from the server
using HttpsURLConnection. And I try connect again that would be fine.
If you find the reason, would you tell me?
Thanks,
Vu-Nguyen
*From:* android-developers@googlegroups.com [mailto:
android-develop...@googlegroups.com] *On Behalf Of *Hugo Wang
*Sent:* Wednesday, March 10, 2010 10:26 AM
*To:* android-developers@googlegroups.com
*Subject:* [android-developers] query about the usage of
HttpsURLConnection
Hi all,
I am using HttpsURLConnection to post data to a web server.
Here is the function I wrote to get the result. (see the code below)
Very strangely, when the function be first called in my program it would very
likely return -1; and then I re-call the function after the first call, it
would always work ok.
So I wonder if there is anything I am missing in the code that when the
function be firstly called, the missing party is be initialized, in that
the followed call goes OK.
Could anyone give some hints on this?
Here is my code of the function:
=
Public MyReturn executeHttpsGet(Context context, String url) {
try {
URL u = new URL(url);
HttpsURLConnection httpConnection;
httpConnection =
(HttpsURLConnection)u.openConnection();
httpConnection.setSSLSocketFactory(mSslContext.getSocketFactory());
httpConnection.setHostnameVerifier(mVerifier);
httpConnection.setDoInput(true);
httpConnection.setConnectTimeout(DEFAULTTIMEOUT);
httpConnection.setUseCaches(true);
httpConnection.connect();
ret.code =
httpConnection.getResponseCode();
Log.i(TAG, ResponseCode:
+String.valueOf(ret.code));
BufferedReader reader;
if (ret.code == 200) {
reader = new
BufferedReader(new InputStreamReader(httpConnection.getInputStream()));
} else {
reader = new
BufferedReader(new InputStreamReader(httpConnection.getErrorStream()));
}
String line;
ret.body = ;
while((line = reader.readLine())!=
null) {
ret.body = ret.body +
line;
}
ret.reader = new
StringReader(ret.body);
PsLogUtil.appendMessage(context, TAG,
Responsebody: +ret.body);
httpConnection.disconnect();
}catch (Exception e) {
e.printStackTrace();
Log.e(TAG, +e.getMessage());
ret.body = ;
ret.code = -1;
}
return ret;
}
Thanks very much for your kindly help.
Best
Hugo
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