I've set up a new Access Point on my emulator so that I can view traffic in Fiddler by following the instructions here: http://aurir.wordpress.com/2010/03/22/tutorial-getting-android-emulator-working-with-fiddler-http-proxy-tool/
This works for the browser requests from the Emulator but the HttpPost request in my application is now visible in Fiddler.
Here's the code I'm using:
private InputStream post(String url, Hashtable<String, String> postvariables) {
DefaultHttpClient httpClient = new DefaultHttpClient();
URI uri;
InputStream data = null;
try {
uri = new URI(url);
HttpPost method = new HttpPost(uri);
method.setHeader("Content-Type","application/json");
String param = new String();
Enumeration<String> e = postvariables.keys();
while(e.hasMoreElements())
{
String key = e.nextElement();
param = param + key + "=" + postvariables.get(key);
if(e.hasMoreElements()) {
param = param + "&";
}
}
Log.i("RestClient",url + param);
HttpEntity entity = new StringEntity(param);
method.setEntity(entity);
HttpResponse response = httpClient.execute(method);
data = response.getEntity().getContent();
} catch (Exception e) {
e.printStackTrace();
}
return data;
}
Any idea what I'm doing wrong?
I have never tried this explicitly, but have seen many reports that redirecting emulator traffic by changing the APN only affects the Browser. You might have better luck running the emulator instance with the option -http-proxy <proxy>. Look here, under Emulator Startup Options (Network) for more:
http://developer.android.com/guide/developing/tools/emulator.html
$0.02: We use Charles to debug web services and booting up the emulator in this fashion works for all traffic.
Hope that helps!
Related
I am trying to make a login and register for an android app.
I have been having problems adjusting the code to API 22.
Although I know I have to use HttpURLConnection instead of HttpRequestParams etc., and have done that, I can't figure out how to adjust the code to incorporate the database server and my PHP files stored on there.
It's mostly this bit below that I can't figure out.
HttpClient client = new DefaultHttpClient(httpRequestParams);
HttpPost post = new HttpPost(SERVER_ADDRESS + "FetchUserData.php");
Can anyone help? Thanks in advance.
Here's the full code:
#Override
protected User doInBackground(Void... params) {
ContentValues contentValues = new ContentValues();
contentValues.put("username", user.username);
contentValues.put("password", user.password);
URL url = new URL(SERVER_ADDRESS);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(CONNECTION_TIMEOUT);
conn.setReadTimeout(CONNECTION_TIMEOUT);
HttpClient client = new DefaultHttpClient(httpRequestParams);
HttpPost post = new HttpPost(SERVER_ADDRESS + "FetchUserData.php");
User returnedUser = null;
try {
post.setEntity(new UrlEncodedFormEntity(dataToSend));
HttpResponse httpResponse = client.execute(post);
HttpEntity entity = httpResponse.getEntity();
String result = EntityUtils.toString(entity);
JSONObject jObject = new JSONObject(result);
if(jObject.length() == 0) {
returnedUser = null;
} else {
String mobile = jObject.getString("mobile");
String email = jObject.getString("email");
returnedUser = new User(mobile, email, user.mobile, user.email);
}
} catch(Exception e) {
e.printStackTrace();
}
return returnedUser;
}
first: It's already been answered
Sending Http request for Android 22+
second: I've made a class that meets your needs, which allow you to send request and receive response with one line of code (It's also explained in post above)
Here is the link for the my class:
HttpRequest
I try to connect MySql.And can use the PostMan get data from 192.168.56.1:8080/BookBankService/rest/api/getall and when I use chorme in genymotion browse 192.168.56.1:8080/ can see the tomcat page. But when I test my code the result return null. And when I use debugger I can see the postRequest url is 192.168.56.1t:8080/BookBankService/rest/api/getall
(Ingore locahost mean 192.168.56.1 here)
public static String post(String url, String json) {
LocalhostURL ="http://192.168.56.1:8080/BookBankService/rest/api"
String result = "";
try {
String strRequest = LocalhostURL + url;
HttpPost postRequest = new HttpPost(strRequest);
postRequest.setHeader("Content-type", "application/json");
postRequest.setHeader("accept", "application/json");
postRequest.setHeader("accept","text/plain");
StringEntity s = new StringEntity(json);
s.setContentEncoding("UTF-8");
s.setContentType("application/json");
postRequest.setEntity(s);
HttpResponse response = httpClient.execute(postRequest);
result = getResult(response).toString();
} catch (Exception e) {
System.out.println(e.getMessage());
}
return result;
}
Android Http request must be executed in AsyncTask or Handler.
If none, then you'll try to get the result before the execute returned a value.
Take a look at a class i created.
Java : a WebService asking embeded in a AsyncTask
where do you are testing your code?
If you're testing it in an emulator you have to replace "localhost" with "10.0.0.2" that is the IP address of the host machine.
For further info please read here: http://developer.android.com/guide/faq/commontasks.html - section "Referring to localhost from the emulated environment"
I'm building an android application that needs to connect to a WCF service. I developed a one and hosted it on my local IIS (7.5) on the following URL:http://129.168.125.5/MyAppDomain/RESTService.svc
(I used local IP address not localhost to avoid referring to the same device or using 10.0.0.2). It works fine on the emulator but When I tried to debug it from my active device connected via USB (galaxy note 3) using Eclipse,
I always got connection to http://129.168.125.5 refused
. I also granted permission to INTERNET in my manifest file. Any Help Please?
Here is my code sample:
Boolean res = false;
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://129.168.125.5/MobileShopper/ShopperService.svc/Login");
post.setHeader("Accept", "application/json");
post.setHeader("Content-type", "application/json");
try
{
JSONObject obj = new JSONObject();
obj.put("email", mEmail);
obj.put("password", mPassword);
StringEntity entity = new StringEntity(obj.toString());
post.setEntity(entity);
HttpResponse response = client.execute(post);
HttpEntity Hentity = response.getEntity();
if(Hentity.getContentLength() != 0) {
// stream reader object
Reader JSONReader = new InputStreamReader(response.getEntity().getContent());
//create a buffer to fill if from reader
final char[] buffer = new char[(int) response.getEntity().getContentLength()];
//fill the buffer by the help of reader
JSONReader.read(buffer);
//close the reader streams
JSONReader.close();
if(new String(buffer).equals("1")){
res = true;
}
else
res = false;
}
}catch(Exception e)
{
Log.e("Error", e.getMessage());
return false;
}
return res;
I am trying to send data to my server using HttpPost via the following code.
private boolean FacebookLogin(String url) {
boolean isDataSend = false;
try {
HttpClient client = new DefaultHttpClient();
HttpPost request = new HttpPost(url);
List<NameValuePair> value = new ArrayList<NameValuePair>();
value.add(new BasicNameValuePair("data", FacebookData()));
UrlEncodedFormEntity entity = new UrlEncodedFormEntity(value);
request.setEntity(entity);
HttpResponse res = client.execute(request);
if (res.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
String bufstring = EntityUtils.toString(res.getEntity(),
"UTF-8");
isDataSend = true;
}
} catch (Exception e) {
}
return isDataSend;
}
Is there any way i can have a look at how the $_POST looks on the server end. so that it will be easier for me to code the server part.
You can write the received $_POST on a file. Sometimes I do that. It's not the most elegant solution, but it works fine.
Try using a http proxy (e.g. Fiddler) for debugging, it helps a lot in these cases. You can set up an emulator to use this proxy for network communications, so you can inspect the messages sent and received. Check out the emulator docs on how to configure it to use a proxy.
As part of my Android app, I'd like to upload bitmaps to be remotely stored. I have simple HTTP GET and POST communication working perfectly, but documentation on how to do a multipart POST seems to be as rare as unicorns.
Furthermore, I'd like to transmit the image directly from memory, instead of working with a file. In the example code below, I'm getting a byte array from a file to be used later on with HttpClient and MultipartEntity.
File input = new File("climb.jpg");
byte[] data = new byte[(int)input.length()];
FileInputStream fis = new FileInputStream(input);
fis.read(data);
ByteArrayPartSource baps = new ByteArrayPartSource(input.getName(), data);
This all seems fairly clear to me, except that I can't for the life of me find out where to get this ByteArrayPartSource. I have linked to the httpclient and httpmime JAR files, but no dice. I hear that the package structure changed drastically between HttpClient 3.x and 4.x.
Is anyone using this ByteArrayPartSource in Android, and how did they import it?
After digging around in the documentation and scouring the Internet, I came up with something that fit my needs. To make a multipart request such as a form POST, the following code did the trick for me:
File input = new File("climb.jpg");
DefaultHttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://localhost:3000/routes");
MultipartEntity multi = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
String line;
multi.addPart("name", new StringBody("test"));
multi.addPart("grade", new StringBody("test"));
multi.addPart("quality", new StringBody("test"));
multi.addPart("latitude", new StringBody("40.74"));
multi.addPart("longitude", new StringBody("40.74"));
multi.addPart("photo", new FileBody(input));
post.setEntity(multi);
HttpResponse resp = client.execute(post);
The HTTPMultipartMode.BROWSER_COMPATIBLE bit is very important. Thanks to Radomir's blog on this one.
try this:
HttpClient httpClient = new DefaultHttpClient() ;
HttpPost httpPost = new HttpPost("http://example.com");
MultipartEntity entity = new MultipartEntity();
entity.addPart("file", new FileBody(file));
httpPost.setEntity(entity );
HttpResponse response = null;
try {
response = httpClient.execute(httpPost);
} catch (ClientProtocolException e) {
Log.e("ClientProtocolException : "+e, e.getMessage());
} catch (IOException e) {
Log.e("IOException : "+e, e.getMessage());
}
Perhaps you can do following step to import library into your Android.
requirement library
- apache-mime4j-0.6.jar
- httpmime-4.0.1.jar
Right click your project and click properties
select java build path
select tab called "Order and Export"
Apply it
Fully uninstall you apk file with the adb uninstall due to existing apk not cater for new library
install again your apk
run it
Thanks,
Jenz
I'm having the same problem. I'm trying to upload an image through MultiPart Entity and it seens that the several updates on HttpClient/MIME are cracking everything. I'm trying the following code, falling with an Error "NoClassDefFoundError":
public static void executeMultipartPost(File image, ArrayList<Cookie> cookies, String myUrlToPost) {
try {
// my post instance
HttpPost httppost = new HttpPost(myUrlToPost);
// setting cookies for the connection session
if (cookies != null && cookies.size() > 0) {
String cookieString = "";
for (int i=0; i<cookies.size(); ++i) {
cookieString += cookies.get(i).getName()+"="+cookies.get(i).getValue()+";";
}
cookieString += "domain=" + BaseUrl + "; " + "path=/";
httppost.addHeader("Cookie", cookieString);
}
// creating the http client
HttpClient httpclient = new DefaultHttpClient();
// creating the multientity part [ERROR OCCURS IN THIS BELLOW LINE]
MultipartEntity multipartEntity = new MultipartEntity();
multipartEntity.addPart("photoupload", new FileBody(image));
httppost.setEntity(multipartEntity);
HttpResponse response = httpclient.execute(httppost);
HttpEntity resEntity = response.getEntity();
} catch (Exception e) {}
}
This method is fully compilable and uses the httpclient-4.0.1.jar and httpmime-4.2.jar libs, but again, I remember that it crashs in the commented line for me.