Provide me code for connecting webservices in android by using HttpClient step by step. also mentioned method name how to set.
Suppose My Method name is : ActiveSurveyList() and URL: http://.....
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I am developing the android application. which is going to update the content from android to the web(php webservice). Can anyone give me the sample code for my reference.
View 4 Replies View RelatedI'm trying to create a login function in my new App.I wrote a php file in my server to be an interface between my App and MySQL.
Quote:
private void connectPHP(){
try {
HttpClient client = new DefaultHttpClient();[code].....
I expect responseMessage will equal to "Success", but as result it returns a NULL value.
1. I'd try the php file in a web browser and it operates normally, I'm sure the problem came from the JAVA code.
2. I'd try to use the response.getStatusLine().getStatusCode() method to check the HTTP status code, but it doesn't return any number.
I got one blog which interacts with servlets... Link as follows
http://groups.google.com/group/android-developers/browse_thread/threa...
In that program 2 libraries were used..
1---> import org.apache.commons.httpclient.HttpClient; 2---> import org.apache.commons.httpclient.methods.GetMethod;
When i check these libraries in my program, its show error....how to resolve this error?
can i do it? I just wanna make SELECT/INSERT into a remote database with my android phone application, i think it have to be easy but i can't find the way. I only find people that tell i have to make a webservice os romething like that, but that is another world for me, and i can't put a webservice in the database host.
View 10 Replies View RelatedI have an android APP. I need to connect to a remote D.B. on the internet. All i know is that i have to use a Web Service, installed on the remote DB server.With my Android APP i have to connect to the web service, and the web service will do the logical operations to get the necesary data from the D.B. and will send them to me. the web service is not a problem, i have a friend that will do it (i have no idea about web services), but i dont know how i have to do the connexion with the Web Services, and also i dont know how have to be the functions of the Web Service.I have searched for tutorials on google but i can't find a good tutorial for beginners like me.can someone give me a little help? for example, a good tutorial for beginners connecting android to a remote DB with webservices?
View 3 Replies View RelatedI am using following webservices for retrieving data from server
server side:.net
client side:ksoap2
whenever activity start, onCreate i am using spinner for displying data returned by the webservices
when this activity start it showing black screen after lunching the activity .i found black screen is coming when activity connecting to webservices
How to resolve this?
MyCode...
I have a class A which is responsible for fetching data from web services in android and i have a class B which is responsible for creating and rendering List View in android
Now how can i populate data on List View once the data is fetched successfully.
well i have following options but which one is better .. (if someone has anyother then i don't mind)
1) Create an intent of Class B and
pass the data that need to be
populated
2) Creating a static method int Class
B which will accept the data as an
argument and call setListAdapter
in class B i have used Holder Patter to create ListActivity. ( for reference List14.java in samples of Android )
What are the best practices to design webservices for mobile (particularly Android) apps?
Personally I'm focused on using JSON (and not XML) and I try to make it the less verbose I can. But I'm probably missing a lot of things.
i have to develop the app is insert the database from spinner in mysql database via soap webserices in android application...
i have use below webservice code:
Code:
package com.xcart;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
[Code]...
this is my android source code for spinner:
Code:
public class InsertionExample extends Activity{
private final String NAMESPACE = "[URL]...";
private final String URL =
[Code]....
my logcat window says following error:
Quote:
08-23 02:48:40.030: D/AndroidRuntime(4055): Shutting down VM
08-23 02:48:40.030: W/dalvikvm(4055): threadid=1: thread exiting with uncaught exception (group=0x4001d800)
08-23 02:48:40.060: E/AndroidRuntime(4055): FATAL EXCEPTION: main
[Code]...
what error is occurred here.give me solution...
am developed one app..here am using json webservices for fetching data from database...Here am used dis coding part:
<?php
$r=mysql_connect("localhost","root","");
mysql_select_db("xcart",$r);
[Code]....
dis is successfully worked in localhost..then am connecting my coding means its displayederror in logcat..the error is json array exception not converted to json array ..how it is diplayed..i konw my coding part having error..so ly it is displayed...
I haven't used the Java HttpClient before and the documentation is confusing. Say I want to send a POST to the URL "https://domain/foo/ bar". I'm accessing a server with an XML API that defines the message to send like this:
code:.........
And the response to expect like this:
code:..........
Now, I can build and parse the portion inside the serverapi tags but I'm not sure how the HttpClient handles the header. If I use the standard code like this:
code:...........
In the area shown as "not sure", should I pre-pend the entire header in front of the xml section, just as it's shown in the server API document or does the client take care of the first line, since it knows the URL?
Is there a way to see exactly what is about to be sent right before I call HttpClient.execute?
As for parsing the response, I believe I can just do this:
code:..........
Or do I need to strip anything off the response content before I start parsing the xml? I took a few stabs at this and it looks like there's some HTTP bookkeeping information at the start of the response content.
I'm writing a small application which needs httpclient lib, basically to manage the cookie/session automatically. The website I'm targeting needs a valid session, so, between each http call, I need to send the cookie. Httpclient does it well. This is a tv stream application and I have to fetch the channel url, the url has a token parameter and I have to be logged / authenticated / (=> have a valid cookie/sessionid) to fetch the channel url.
I got the first cookie/sessionid with the first connection to the website. The cookie is valid for a certain amount of time, there is no "expires" but I don't know if there is any server cron to cleanup the sessions. I assume I have to "ping" every x secondes to maintain the session valid.
Between each http call, the time could be from 1 sec to several minutes, it depends if the user wants to change the watched tv channel. The http call (to fetch the url) is not made by the UI Thread.
There are several possibilities to manage the httpclient : - a single httpclient static singleton instance accessed by a custom synchronized getClient() on an helper class => when / how to release the http connection ? How to handle that correctly if the user got a phone call / does not use the application for now (unvalidate during onResume, etc)? - Save the cookie (String serialized into SharedPreferences) and create every time a new httpclient instance (then set the cookie to the new instance) => overhead to get the http connection - other ?
By default HttpClient use HTTP/1.1 protocol, is there any way to change it to HTTP/1.0?
View 4 Replies View RelatedI had configure a Tomcat webserver with SSL and client autification. So I need a clienKey.p12 File to visit the site. If I import the key into Firefox, it works fine.
So I tried to develop a Client from "normal" Java. That works:
CODE:..........
Now I try to develope a Client into Android and I am getting crazy....
Here my two Android implementation:
CODE:...........
I always geht the following Exception:
CODE:................
But the key is the same that I use for the "normal" java Client and for the import into firefox. So the key is valid. But it is signed by me... I don't want to sign it by a commercial Company like verisign.
I'm new to implementing HTTPS connections in Android. Essentially, I'm trying to connect to a server using the org.apache.http.client.HttpClient. I believe, at some point, I'll need to access the application's keystore in order to authorize my client with a private key. But, for the moment, I'm just trying to connect and see what happens; I keep getting an HTTP/1.1 400 Bad Request error.
I can't seem to make heads or tails of this despite many examples (none of them seem to work for me). My code looks like this (the BODY constant is XmlRPC):
CODE:.......................
For example: Say I searched something on the Walmart homepage. Like this. How would I retrieve the information from the first product listed. Information like product name, price, details, rating, model. And how would I search in the box.
The only way it seems like to me is to replace http://www.walmart.com/search/search-ng.do?
search_constraint=0&ic=48_0&search_query=someProduct&Find.x=0&Find.y=0&Find=Find.
Then replace someProduct with the seach and call it in an HttpClient.
Has anyone tried to use a newer version of Apache HttpClient on Android? There's an annoying bug in the HttpClient used by Android and I was wondering if I would run into problems trying to redistribute HttpClient 4.1 with my app.
View 2 Replies View RelatedI am using httpclient for my android app and I have a local site which has a few https pages. Since default httpclient doesnot allow self-signed certificates I am using "EasySSLFactory" and "EasyX509TrustManager", which are mentioned in httpclient documentation.
CODE:.......
The problem is if I use this SSLFactory in my android app, I am getting correct response from my site's https pages, but I get "SSL handshake failure: I/O error during system call, Unknown error: 0" for sites such as "gmail.com", "ymail.com". If I don't use. "EasySSLSocketFactory" I get response from these sites but get exception for my site.
This page fetch code works fine as a standalone java application.
I'm connecting to a REST service using HttpClient under Android. I'd like to be able to write code where I could pull the host, port, etc. out of a properties file and not have to write fake Schemes and other things like that in order to do the development work. In other words, the live site will have a cert. The dev site will have a self-signed cert or a CA cert. Either way, I need the code to seamlessly work with both kinds of certs if possible. Can someone point me in the right direction?
View 2 Replies View RelatedDoes anyone know how to avoid the XSL transforming that is taking place in the HTTPClient? I just want the raw xml.
View 5 Replies View RelatedI am having a hugely annoying issue with delays using HTTPClient and post the first time I call execute on the client the response takes 5 seconds to come back. Subsequent calls take around 100 to 200 ms. I am using the Apache client so does anyone know why this takes so long? The client setup looks like below
CODE:.........
The timing for this look like below.
CODE:......................
I'm trying to call a web server that is using relative URL redirects for some of the calls. This of course isn't working with DefaultHttpClient as it isn't treating it as a relative URL. I've gotten as far as implementing a RedirectHandler in an attempt to catch the redirect and add in the base call but I can't work out how to get the location of the redirect.
With the following method how do I go about finding out where I am being redirected to? I can't find any fields on either response or context that have what I need and I don't know where else to look.
public URI getLocationURI(HttpResponse response, HttpContext context)
Until recently, our app shared a single Apache HttpClient instance using the ThreadSafeClientConnManager across the whole application. The http client instance was held by a singleton class.
Since I dislike the singleton pattern for its numerous problems, I refactored our API accessor to be a per-thread object, but now for every thread (which mostly means per Activity/Service in our case) a new HttpClient instance is created.
It's not that I have problems with this new approach, but I've read that the Apache folks suggest to only have one instance per app for performance reasons.
Visually, what we did before was this:
HttpClient (thread safe)
|
|
/
/
Activity1...ActivityN
Now, we do this:
Activity1 ... ActivityN
| |
| |
HttpClient1 HttpClientN
How do you guys do this in your applications? If you share one single HttpClient across your app and potentially many concurrent threads, how do you handle access to it?
I am trying to use a certain wrapper of HttpClient, called HTTPRequestHelper with an associated responseHandler as the basic class for my wrapper to a web service which is implemented as a singleton.
HTTPRequestHelper and samples of usage are described in chapter 6 of "Unlocking Android" published by Manning.
My problem is that invoking both the helper and the handler from a thread started on the main UI thread (either from an AsyncTask or directly) works only sporadically.
Here is the basic setup.
public class APIService { private ArrayList<Something> myThing;
CODE:.................
HttpClient 4 doesn't have that included anymore. The upstream project didn't integrate it from the 3.x client. I had to do exactly the same today. Basically I solved it by including some additional jars: mime4j httpmime This question was already on the list and there's some better explanation: http://groups.google.com/group/android-developers/msg/1ea124b384da9dc2 -- Urs My problem is that while i know what i have to include, i can't find a sensible download link for httpmime. the page points back to httpcore for downloads, but of course it's not in there any more (i checked). i was up for compiling it, but the source link takes me to the javadoc! something is definitely screwed up.
View 14 Replies View RelatedI'm trying to do multipart form upload using the 4.x httpclient on android. all the 4.x code samples I'm seeing use org.apache.http.entity.mime.MultipartEntity, but I'm running into a roadblock trying to find it. It's supposed to be in the httpmime project, but the download link for that project leads me back to httpcore, and the httpcore download doesn't contain that class. anyone else get multi part form upload to work?
View 2 Replies View RelatedI am trying to upload a image file to server and get back a JSON Object. But an IOException was thrown out. Following is my codes, can anybody have a look at them?
CODE:.....................
I'm working on an application that does an upload to a webserver, but struggling with the actual fileupload.. code:
CODE:............
Now, I have this working with what is no longer supported in MultipartEntity as follows:
CODE:...........
Problem is MultipartEntity is apparently no longer supported, although I found the libraries I can include in my project.
An Android app I am building requires web authentication for users to make data calls. In Adobe AIR and later the iPhone, we did this by rendering a login page in a webview-equivalent page and setting a cookie when the user signs in. Subsequent data calls use the same Cookie Jar and so are seen as authenticated.
In the Android version, I authenticate the user using a WebView and then once thats done, I make a data call using DefaultHttpClient, however I cant seem to load the data on the second call.
Is there some cookie gotcha I am missing? I imagine the HTTPClient and WebView would share the same Cookie space.