I have tried different methods to upload and retrieve a link via imgur but none have been successfull despite looking at the imgur api.
http://api.imgur.com/examples#uploading_java
But the following methods partly works..
im trying to retrieve,
errors: if any errors occured.
link to image: the link to the image hosted
delete link: the link to delete the image hosted
But i only end up with the "delete link", as the others are blank,
check it out:
public void post(String path) {
List<NameValuePair> postContent = new ArrayList<NameValuePair>(2);
postContent.add(new BasicNameValuePair("key", DEV_KEY));
postContent.add(new BasicNameValuePair("image", path));
String url = "http://api.imgur.com/2/upload";
HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost(url);
try {
MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE);
for(int index=0; index < postContent.size(); index++) {
if(postContent.get(index).getName().equalsIgnoreCase("image")) {
// If the key equals to "image", we use FileBody to transfer the data
entity.addPart(postContent.get(index).getName(), new FileBody(new File (postContent.get(index).getValue())));
} else {
// Normal string data
entity.addPart(postContent.get(index).getName(), new StringBody(postContent.get(index).getValue()));
}
}
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost, localContext);
mImgurResponse = parseResponse (response);
Iterator it = mImgurResponse.entrySet().iterator();
while(it.hasNext()){
HashMap.Entry pairs = (HashMap.Entry)it.next();
Log.i("INFO",pairs.getKey().toString());
if(pairs.getValue()!=null){
reviewEdit.setText(pairs.getValue().toString());
Log.i("INFO",pairs.getValue().toString());
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
private Map<String,String> parseResponse(HttpResponse response) {
String xmlResponse = null;
try {
xmlResponse = EntityUtils.toString(response.getEntity());
} catch (ParseException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
if (xmlResponse == null) return null;
HashMap<String, String> ret = new HashMap<String, String>();
ret.put("error", getXMLElementValue(xmlResponse, "error_msg"));
ret.put("delete", getXMLElementValue(xmlResponse, "delete_page"));
ret.put("original", getXMLElementValue(xmlResponse, "original_image"));
return ret;
}
private String getXMLElementValue(String xml, String elementName) {
if (xml.indexOf(elementName) >= 0)
return xml.substring(xml.indexOf(elementName) + elementName.length() + 1,
xml.lastIndexOf(elementName) - 2);
else
return null;
}
All i get back in the end is a hashmap mImageResponse with only the delete link...
any ideas on what im doing wrong?
The fix to this was merely to change the URL to: imgur.com/api/upload.xml
Related
Am trying to create user into my salesforce account through REST api using java.But its returning 400 status code.Can you please guide me?
Here is the code am trying:
public static void createUsers() {
System.out.println("\n_______________ USER INSERT _______________");
String uri = baseUri + "/sobjects/User/";
System.out.println(uri);
try {
//create the JSON object containing the new lead details.
JSONObject lead = new JSONObject();
lead.put("FirstName", "Jake");
lead.put("LastName", "sully");
lead.put("Alias", "Jake");
lead.put("Email", "Jake#gmail.com");
lead.put("Username", "Jake#gmail.com");
lead.put("Name", "jake");
lead.put("UserRoleId","00E28000000oD8EEAU");
lead.put("Id", "10028000000GLSIAA4");
lead.put("EmailEncodingKey", "ISO-8859-1");
lead.put("TimeZoneSidKey", "Asia/Kolkata");
lead.put("LocaleSidKey", "en_US");
lead.put("ProfileId", "00e280000027hnGAAQ");
lead.put("LanguageLocaleKey", "en_US");
//Construct the objects needed for the request
HttpClient httpClient = HttpClientBuilder.create().build();
HttpPost httpPost = new HttpPost(uri);
httpPost.addHeader(oauthHeader);
httpPost.addHeader(prettyPrintHeader);
// The message we are going to post
StringEntity body = new StringEntity(lead.toString(1));
body.setContentType("application/json");
httpPost.setEntity(body);
//Make the request
HttpResponse response = httpClient.execute(httpPost);
//Process the results
System.out.println(response.toString());
int statusCode = response.getStatusLine().getStatusCode();
if (statusCode == 201) {
String response_string = EntityUtils.toString(response.getEntity());
JSONObject json = new JSONObject(response_string);
// Store the retrieved lead id to use when we update the lead.
leadId = json.getString("id");
} else {
System.out.println("Insertion unsuccessful. Status code returned is " + statusCode);
}
} catch (JSONException e) {
System.out.println("Issue creating JSON or processing results");
e.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace();
} catch (NullPointerException npe) {
npe.printStackTrace();
}
}
I've been trying to get this work for a while now. Im working on an app where the user signs in with a username and password which uses a httppost request to post to the server. i get the correct response, and during the post i store the session cookie that the server gives me. (I store it in a cookie store)
But when i try to click a link on the menu ( which does a second http post) after i logged in, the servers gives me a message saying that i am not logged in. But i send the cookie that i recieved in the first post to the server in the second post, yet the server does not recognize that i am logged in. To test this more easily i used the chrome plug in "Postman" which lets you post to websites easily. The only time it worked was when i log in to the website using chrome then use Postman to do the second post, which successfully gives me a response. however, when i use Postman to log in, then also use postman to attempt the second post , again, "Not logged in". Im guessing that the cookie is not being stored properly in the app. How could i go about fixing this? I read some stuff about storing the cookies in something called "Shared Preferences", is that possibly a fix? If so, what is it and how could i store the cookies there?
public static String executeHttpPost(String url, ArrayList<NameValuePair> postParameters) throws Exception {
BufferedReader in = null;
try {
LoginLayout.httpClient = new DefaultHttpClient();
HttpPost request = new HttpPost(url);
UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameters);
request.setEntity(formEntity);
CookieStore cookiestore = LoginLayout.httpClient.getCookieStore();
HttpResponse response = LoginLayout.httpClient.execute(request);
List<Cookie> cookies = LoginLayout.httpClient.getCookieStore().getCookies();
cookiestore.addCookie(cookie);
cookie = cookies.get(0);
cookieValue = "ASPSESSIONIDCQTCRACT=" + cookiestore.getCookies();
System.out.println("The cookie" + cookieValue);
List<Cookie> cookiess = cookiestore.getCookies();
cookiee = cookies.get(0);
Header[] headers = response.getAllHeaders();
System.out.println("length" + headers.length);
for (int i=0; i < headers.length; i++) {
Header h = headers[i];
System.out.println( "Header names: "+h.getName());
System.out.println( "Header Value: "+h.getValue());
}
in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
}
in.close();
// System.out.println( mCookie);
String result = sb.toString();
return result;
}
finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
} }
Here is the getter so i can access the cookie from the cookie store in the next activity
public static String getCookie(){
return cookiee.getName() +"="+cookiee.getValue();
}
Here is the second post where i try to retrieve the stored cookie, which it seems to do sucessfully, however the server doesnt recognize i am logged in
public static String executeHttpPost(String url, ArrayList<NameValuePair> postParameters) throws Exception {
BufferedReader in = null;
try {
HttpPost request = new HttpPost(url);
request.setHeader("Cookie", LoginLayout.getCookie());
UrlEncodedFormEntity formEntity = new UrlEncodedFormEntity(postParameters);
request.setEntity(formEntity);
HttpResponse response = LoginLayout.httpClient.execute(request);
Header[] headers = response.getAllHeaders();
System.out.println("length" + headers.length);
for (int i=0; i < headers.length; i++) {
Header h = headers[i];
System.out.println( "Header names: "+h.getName());
System.out.println( "Header Value: "+h.getValue());
}
in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
StringBuffer sb = new StringBuffer("");
String line = "";
String NL = System.getProperty("line.separator");
while ((line = in.readLine()) != null) {
sb.append(line + NL);
}
in.close();
//System.out.println( mCookie);
String result = sb.toString();
return result;
}
finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
You have to make sure that your HttpClient is using the same HttpContext on each request.
The CookieStore is associated with the HttpContext so create a new instance of HttpContext will create a new CookieStore as well.
The best way I found is to create a static instance of HttpContext and use it on every request.
Below I added an part of a class I'm using in my apps:
public class ApiClient {
// Constants
private final static String TAG = "ApiClient";
private final static String API_URL = "your-url";
// Data
private static ApiClient mInstance;
private HttpClient mHttpClient;
private ThreadSafeClientConnManager mConnectionManager;
private HttpPost mPost;
/*
* we need it static because otherwise it will be recreated and the session
* will be lost
*/
private static HttpContext mHttpContext;
private HttpParams mParams;
private Context mContext;
public ApiClient(Context pContext) {
mParams = new BasicHttpParams();
mContext = pContext;
if (null == mHttpContext) {
CookieStore cookieStore = new BasicCookieStore();
mHttpContext = new BasicHttpContext();
mHttpContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);
}
ConnManagerParams.setMaxTotalConnections(mParams, 300);
HttpProtocolParams.setVersion(mParams, HttpVersion.HTTP_1_1);
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
mConnectionManager = new ThreadSafeClientConnManager(mParams, schemeRegistry);
mHttpClient = new DefaultHttpClient(mConnectionManager, mParams);
}
public static ApiClient getInstance(Context pContext) {
if (null == mInstance) {
return (mInstance = new ApiClient(pContext));
} else {
return mInstance;
}
}
public void testPOST() {
List<NameValuePair> requestParams = new ArrayList<NameValuePair>();
requestParams.add(new BasicNameValuePair("param1", "value1"));
requestParams.add(new BasicNameValuePair("param2", "value2"));
mPost = new HttpPost(API_URL);
try {
mPost.setEntity(new UrlEncodedFormEntity(requestParams, HTTP.UTF_8));
HttpResponse responsePOST = mHttpClient.execute(mPost, mHttpContext);
HttpEntity resEntity = responsePOST.getEntity();
String result = EntityUtils.toString(resEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
To test it try setting the correct API_URL and
ApiClient api = ApiClient.getInstance(somContext);
api.testPOST();
I want to create a restful web service in java using jersey API and consume it in android application. I got this question on SO but it talks about java client whereas I have android client.
My service looks like this:
#Path("/no")
public class CheckNumber {
#POST
#Produces("application/json")
#Consumes("application/json")
public String getDetails(#PathParam("cNo") String cNo) {
String CardNo="";
try {
JSONObject jsonObj = new JSONObject(cNo);
CardNo=jsonObj.getString("CardNo");
} catch (ParseException e1) {
e1.printStackTrace();
}
//Do something
return "someValue";
}
}
Now comes the client side:
public class MainActivity extends Activity {
JSONObject json = new JSONObject();
String wsdl = "http://192.168.1.105:8080/restdemo/check/no/";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
new RequestTask().execute("1234567890");
}
class RequestTask extends AsyncTask<String, String, String> {
#Override
protected String doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
String add = "{\"CardNo\":\"" + uri[0] + "\"}";
HttpPost postMethod = new HttpPost(wsdl);
String responseString = null;
try {
postMethod.addHeader("Content-Type", "application/json");
HttpEntity entity = new StringEntity(add);
postMethod.setEntity(entity);
response = httpclient.execute(postMethod);
StatusLine statusLine = response.getStatusLine();
if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
responseString = out.toString();
} else {
response.getEntity().getContent().close();
throw new IOException(statusLine.getReasonPhrase());
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return responseString;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
}
}
}
I'm just starting with rest web services. I successfully created a sample rest service which consumes string and returns string and used this service in android app.
But when I try to pass json string using POST method. It's giving following errorin log:
java.io.IOException: Internal Server Error
at com.example.restclient.MainActivity$RequestTask.doInBackground(MainActivity.java:85)
where MainActivity.java:85 is throw new IOException(statusLine.getReasonPhrase()); which implies that statusLine.getStatusCode() is not returning HttpStatus.SC_OK. Instead it's returning status code = 500.
Any help appreciated.
It will be good to see the server side log to understand better.
Try creating the entity with UTF8 and set the content-type in the string entity rather than in the postMethod
StringEntity stringEntity = new StringEntity(myJsonDocStr, HTTP.UTF_8);
stringEntity.setContentType("application/json");
Try this code, It works for me
Boolean NetworkLostFlag = false;
HttpParams httpParameters = new BasicHttpParams();
int timeoutConnection = 10000;
HttpConnectionParams.setConnectionTimeout(httpParameters,
timeoutConnection);
int timeoutSocket = 12000;
HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
HttpClient httpclient = new DefaultHttpClient(httpParameters);
HttpPost httppost = new HttpPost(strUrl");
try {
httppost.setEntity(new UrlEncodedFormEntity(new BasicNameValuePair(arg1, val1), "UTF-8"));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
if (entity != null) {
InputStream instream = entity.getContent();
try {
// do something useful
StringBuffer buffer = new StringBuffer();
byte[] b = new byte[4096];
for (int n; (n = instream.read(b)) != -1;) {
buffer.append(new String(b, 0, n));
}
result = buffer.toString();
} catch (Exception e) {
NetworkLostFlag = true;
// TODO: handle exception
} finally {
instream.close();
}
}
} catch (Exception e) {
NetworkLostFlag = true;
e.printStackTrace();
}
I need to send some data from my Android device to my server. I am doing this through JSON. I have implemented the JSON post on Android, and I am trying to do a mapping on the server side in order to retrieve that data. My problem is that I keep getting an empty string.
Android method used to send JSON:
private void sendJson(final String json, final String URL) {
Thread t = new Thread(){
public void run() {
Looper.prepare(); //For Preparing Message Pool for the child Thread
HttpClient client = new DefaultHttpClient();
HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000); //Timeout Limit
try{
HttpPost post = new HttpPost(URL);
StringEntity se = new StringEntity(json);
se.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
post.setEntity(se);
client.execute(post);
}
catch(Exception e){
e.printStackTrace();
}
Looper.loop(); //Loop in the message queue
}
};
t.start();
}
Server-side method:
#RequestMapping(value = "/getLatestCalls", method = RequestMethod.POST)
public void getData(#ModelAttribute String json){
//... do something
}
The thing is that in this method my json String is "" every time. I have also tried using #RequestParam but with that it doesn't enter the method anymore. I have also tried with #ModelAttribute("json").
Can someone enlighten me a little here? Thank you in advance.
Here is the solution and it works fine.
server-side
#Controller
public class DataCollector {
#RequestMapping(value = "/clientdatacollector", method = RequestMethod.POST)
public #ResponseBody
void abc(Writer writer, #RequestParam("gpsdata") String gpsJSON) {
try {
// here is your jsonstring ;)
writer.write(gpsJSON.toString());
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
client-side
public static void httptest() {
ArrayList<TravellingData> tdArray = new ArrayList<TravellingData>();
Gson gson = new Gson();
String jsonString = "";
for (int i = 0; i < 1; i++) {
tdArray.add(ObjectCreater.createMockTravellingDataObject());
}
jsonString = gson.toJson(tdArray);
HttpClient client = new DefaultHttpClient();
HttpPost post = null;
try {
post = new HttpPost(
"http://localhost:8080/uygulama/clientdatacollector");
} catch (URISyntaxException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("gpsdata", jsonString));
post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = null;
try {
response = client.execute(post);
} catch (HttpException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
BufferedReader rd = new BufferedReader(new InputStreamReader(
response.getEntity().getContent()));
String line = "";
while ((line = rd.readLine()) != null) {
System.out.println(line);
}
} catch (IOException e) {
e.printStackTrace();
}
}
Try using #RequestBody. It should work.
I want to upload a txt file to a website, I'll admit I haven't looked into it in any great detail but I have looked at a few examples and would like more experienced opinions on whether I'm going in the right direction.
Here is what I have so far:
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
private String ret;
HttpResponse response = null;
HttpPost httpPost = null;
public String postPage(String url, String data, boolean returnAddr) {
ret = null;
httpClient.getParams().setParameter(ClientPNames.COOKIE_POLICY, CookiePolicy.RFC_2109);
httpPost = new HttpPost(url);
response = null;
StringEntity tmp = null;
try {
tmp = new StringEntity(data,"UTF-8");
} catch (UnsupportedEncodingException e) {
System.out.println("HTTPHelp : UnsupportedEncodingException : "+e);
}
httpPost.setEntity(tmp);
try {
response = httpClient.execute(httpPost,localContext);
} catch (ClientProtocolException e) {
System.out.println("HTTPHelp : ClientProtocolException : "+e);
} catch (IOException e) {
System.out.println("HTTPHelp : IOException : "+e);
}
ret = response.getStatusLine().toString();
return ret;
}
And I call it as follows:
postPage("http://www.testwebsite.com", "data/data/com.testxmlpost.xml/files/logging.txt", true));
I want to be able to upload a file from the device to a website.
But when trying this way I get the following response back.
HTTP/1.1 405 Method Not Allowed
Am I trying the correct way or should I be doing it another way?
That code looks reasonable, the error is from the server and indicates that POST is not allowed for that page.
You're sending the literal string "data/data/com.testxmlpost.xml/files/logging.txt". If you want to post a file, use a FileEntity.