I import writer from apache. The error occured when I try using it.
in is just the url.
I was following exactly what was on this link:
Store image to Blobstore from android client and retrieve blobkey and upload url to store in Datastore. - GAE
Does someone know this error?
UPDATED
Here is the full code:
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import com.google.api.client.util.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
public class GetBlobUrlTask extends ActionBarActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_get_blob_url_task);
}
#Override
protected Void doInBackground(Void... arg0){
HttpClient httpClient = new DefaultHttpClient();
//This will invoke "ImgUpload servlet
HttpGet httpGet = new HttpGet("http://PUT_YOUR_URL_HERE/bloburlget");
HttpResponse response;
try {
response = httpClient.execute(httpGet);
HttpEntity urlEntity = response.getEntity();
InputStream in = urlEntity.getContent();
String str = "";
StringWriter writer = new StringWriter();
String encoding = "UTF-8";
IOUtils.copy(in, writer, encoding);
str = writer.toString();
HttpPost httppost = new HttpPost(str);
File f = new File(picturePath);
MultipartEntityBuilder reqEntity = MultipartEntityBuilder.create();
reqEntity.addBinaryBody("photo", f, ContentType.create("image/jpeg"), "foto2.jpg");
httppost.setEntity(reqEntity.build());
response = httpClient.execute(httppost); //Here "uploaded" servlet is automatically invoked
str = EntityUtils.toString(response.getEntity());
JSONObject resultJson = new JSONObject(str);
blobKey = resultJson.getString("blobKey");
servingUrl = resultJson.getString("servingUrl");
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_get_blob_url_task, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
My guess is the person in the example is using IOUtils from Apache Commons and you are using a different IOUtils provided by the Google HTTP client
Related
I am new to android app development, and one of my clients asked me to fix this code his past dev left the job . there were a lot of errors I was able to fix it. But now I am stuck at a point in HTTP request error in java and cannot execute this code. Let me know how to fix it. Current status complied SDK 33 and cannot downgrade the same. Code below. HTTP client is deprecated.
package com.ecom.ecommerce;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.util.ArrayList;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.content.res.Configuration;
import android.graphics.drawable.ColorDrawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.ProgressBar;
import android.widget.TextView;
public class ActivityCategoryList extends Activity {
GridView listCategory;
ProgressBar prgLoading;
TextView txtAlert;
// declare adapter object to create custom category list
AdapterCategoryList cla;
// create arraylist variables to store data from server
static ArrayList<Long> Category_ID = new ArrayList<Long>();
static ArrayList<String> Category_name = new ArrayList<String>();
static ArrayList<String> Category_image = new ArrayList<String>();
String CategoryAPI;
int IOConnect = 0;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.category_list);
ActionBar bar = getActionBar();
bar.setBackgroundDrawable(new
ColorDrawable(getResources().getColor(R.color.header)));
bar.setDisplayHomeAsUpEnabled(true);
bar.setHomeButtonEnabled(true);
bar.setTitle("Category");
prgLoading = (ProgressBar) findViewById(R.id.prgLoading);
listCategory = (GridView) findViewById(R.id.listCategory);
txtAlert = (TextView) findViewById(R.id.txtAlert);
cla = new AdapterCategoryList(ActivityCategoryList.this);
// category API url
CategoryAPI = Constant.CategoryAPI+"?accesskey="+Constant.AccessKey;
// call asynctask class to request data from server
new getDataTask().execute();
// event listener to handle list when clicked
listCategory.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
// TODO Auto-generated method stub
// go to menu page
Intent iMenuList = new Intent(ActivityCategoryList.this, ActivityMenuList.class);
iMenuList.putExtra("category_id", Category_ID.get(position));
iMenuList.putExtra("category_name", Category_name.get(position));
startActivity(iMenuList);
overridePendingTransition(R.anim.open_next, R.anim.close_next);
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_category, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
switch (item.getItemId()) {
case R.id.cart:
// refresh action
Intent iMyOrder = new Intent(ActivityCategoryList.this, ActivityCart.class);
startActivity(iMyOrder);
overridePendingTransition (R.anim.open_next, R.anim.close_next);
return true;
case R.id.refresh:
IOConnect = 0;
listCategory.invalidateViews();
clearData();
new getDataTask().execute();
return true;
case android.R.id.home:
// app icon in action bar clicked; go home
this.finish();
overridePendingTransition(R.anim.open_main, R.anim.close_next);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
// clear arraylist variables before used
void clearData(){
Category_ID.clear();
Category_name.clear();
Category_image.clear();
}
// asynctask class to handle parsing json in background
public class getDataTask extends AsyncTask<Void, Void, Void>{
// show progressbar first
getDataTask(){
if(!prgLoading.isShown()){
prgLoading.setVisibility(0);
txtAlert.setVisibility(8);
}
}
#Override
protected Void doInBackground(Void... arg0) {
// TODO Auto-generated method stub
// parse json data from server in background
parseJSONData();
return null;
}
#Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
// when finish parsing, hide progressbar
prgLoading.setVisibility(8);
// if internet connection and data available show data on list
// otherwise, show alert text
if((Category_ID.size() > 0) && (IOConnect == 0)){
listCategory.setVisibility(0);
listCategory.setAdapter(cla);
}else{
txtAlert.setVisibility(0);
}
}
}
// method to parse json data from server
public void parseJSONData(){
clearData();
try {
// request data from Category API
HttpClient client = new DefaultHttpClient();
HttpConnectionParams.setConnectionTimeout(client.getParams(), 15000);
HttpConnectionParams.setSoTimeout(client.getParams(), 15000);
HttpUriRequest request = new HttpGet(CategoryAPI);
HttpResponse response = client.execute(request);
InputStream atomInputStream = response.getEntity().getContent();
BufferedReader in = new BufferedReader(new InputStreamReader(atomInputStream));
String line;
String str = "";
while ((line = in.readLine()) != null){
str += line;
}
// parse json data and store into arraylist variables
JSONObject json = new JSONObject(str);
JSONArray data = json.getJSONArray("data");
for (int i = 0; i < data.length(); i++) {
JSONObject object = data.getJSONObject(i);
JSONObject category = object.getJSONObject("Category");
Category_ID.add(Long.parseLong(category.getString("Category_ID")));
Category_name.add(category.getString("Category_name"));
Category_image.add(category.getString("Category_image"));
Log.d("Category name", Category_name.get(i));
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
IOConnect = 1;
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
#Override
protected void onDestroy() {
// TODO Auto-generated method stub
//cla.imageLoader.clearCache();
listCategory.setAdapter(null);
super.onDestroy();
}
#Override
public void onConfigurationChanged(final Configuration newConfig)
{
// Ignore orientation change to keep activity from restarting
super.onConfigurationChanged(newConfig);
}
#Override
public void onBackPressed() {
// TODO Auto-generated method stub
super.onBackPressed();
finish();
overridePendingTransition(R.anim.open_main, R.anim.close_next);
}
}
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I'm having some trouble with the connection to my database, I could need some help to see if it's the .java file that is wrong or my .php file. The result right now is "couldn't connect to database"
.php file http://pastebin.com/9fMmzprd
.java:
package com.example.stolle.httpclient;
import android.app.Activity;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class contact extends Activity {
TextView resultView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contact);
StrictMode.enableDefaults();
resultView = (TextView) findViewById(R.id.result);
getData();
}
public void getData(){
String result ="";
InputStream isr = null;
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new
HttpPost("http://stolle.se.preview.citynetwork.se/kontaktApp/read_allcontacts.php");
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
isr = entity.getContent();
}
catch (Exception e){
Log.e("log_tag","Error in http connection"+e.toString());
resultView.setText("Couldnt connect to database");
}
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(isr,"iso-8859-1"),8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line=reader.readLine()) != null) {
sb.append(line + "\n");
}
isr.close();
result=sb.toString();
}
catch(Exception e){
Log.e("log_tag","Error converting result"+e.toString());
}
try {
String s = "";
JSONArray jArray = new JSONArray(result);
for(int i=0; i<jArray.length(); i++){
JSONObject json = jArray.getJSONObject(i);
s = s+
"id : "+json.getInt("id")+"\n"+
"name : "+json.getString("name")+"\n"+
"mail : "+json.getString("mail")+"\n"+
"company :"+json.getString("company")+"\n\n";
}
resultView.setText(s);
}
catch (Exception e){
//to do handle exception
Log.e("Log_tag", "Error Parsing Data" + e.toString());
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_contact, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Your problem is not with PHP. Your PHP file is working good. Your error is at httppost request section. You dont have a setEntity which is required. Look here for details.
I can give a example of Httppost request with name value pair.
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("test","123"));
try{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("URL");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
}
i am developing an android app, which needs to send a string to web server(written in java).when server receives this string it will automatically fire response.after going through many examples i tried to do this .
i used following code to send request.
try{
String url = "https://mywebserver";
URL obj = new URL(url);
HttpsURLConnection con = (HttpsURLConnection) obj.openConnection();
//add reuqest header
con.setRequestMethod("POST");
con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
String urlParameters = "014500000000000000000000** 0000 0030000100700006800006000000000000000 0 I 00000000 00000000000000000000000000000000000073054721143";
// Send post request
con.setDoOutput(true);
//something is wrong after this line
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
int responseCode = con.getResponseCode();
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
//print result
System.out.println(response.toString());
}catch(Exception e){
tv_str.setText("caught exception");
}
this is not working (generating an exception). and i also tried this example- answer 2 but not working and
also, is there any webserver for Testing http post requests. i.e how do i test my request
if there is any other way to do this please tell me as i am new to this
my logcat:
07-08 11:59:37.423: D/dalvikvm(31971): Late-enabling CheckJNI
07-08 11:59:37.713: I/Adreno-EGL(31971): <qeglDrvAPI_eglInitialize:316>: EGL 1.4 QUALCOMM build: (CL4169980)
07-08 11:59:37.713: I/Adreno-EGL(31971): OpenGL ES Shader Compiler Version: 17.01.10.SPL
07-08 11:59:37.713: I/Adreno-EGL(31971): Build Date: 12/04/13 Wed
07-08 11:59:37.713: I/Adreno-EGL(31971): Local Branch: workspace
07-08 11:59:37.713: I/Adreno-EGL(31971): Remote Branch:
07-08 11:59:37.713: I/Adreno-EGL(31971): Local Patches:
07-08 11:59:37.713: I/Adreno-EGL(31971): Reconstruct Branch:
07-08 11:59:37.764: D/OpenGLRenderer(31971): Enabling debug mode 0
07-08 11:59:37.849: E/Adreno-ES20(31971): <gl_external_unsized_fmt_to_sized:2379>: QCOM> format, datatype mismatch
07-08 11:59:37.849: E/Adreno-ES20(31971): <get_texture_formats:3009>: QCOM> Invalid format!
thanks in advance
yes json is easy. i implemented this and its working fine.. thanks to JLONG and user1369434.
package m.example.postrwq;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONObject;
import android.support.v7.app.ActionBarActivity;
import android.app.Activity;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
Button btnPost;
TextView tvIsConnected;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnPost = (Button) findViewById(R.id.button1);
tvIsConnected = (TextView) findViewById(R.id.textView1);
if(isConnected()){
tvIsConnected.setBackgroundColor(0xFF00CC00);
tvIsConnected.setText("You are conncted");
}
else{
tvIsConnected.setText("You are NOT conncted");
}
btnPost.setOnClickListener(new OnClickListener(){
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
new HttpAsyncTask().execute("http://hmkcode.appspot.com/jsonservlet");
}});
}
private class HttpAsyncTask extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... urls) {
return POST(urls[0]);
}
// onPostExecute displays the results of the AsyncTask.
#Override
protected void onPostExecute(String result) {
Toast.makeText(getBaseContext(), "Data Sent!", Toast.LENGTH_LONG).show();
}
}
public static String POST(String url){
InputStream inputStream = null;
String result = "";
try {
// 1. create HttpClient
HttpClient httpclient = new DefaultHttpClient();
// 2. make POST request to the given URL
HttpPost httpPost = new HttpPost(url);
String json = "my string";
// 6. set json to StringEntity
StringEntity se = new StringEntity(json);
// 7. set httpPost Entity
httpPost.setEntity(se);
// 8. Set some headers to inform server about the type of the content
httpPost.setHeader("Accept", "application/json");
httpPost.setHeader("Content-type", "application/json");
// 9. Execute POST request to the given URL
HttpResponse httpResponse = httpclient.execute(httpPost);
// 10. receive response as inputStream
inputStream = httpResponse.getEntity().getContent();
// 11. convert inputstream to string
if(inputStream != null)
result = convertInputStreamToString(inputStream);
else
result = "Did not work!";
} catch (Exception e) {
Log.d("InputStream", e.getLocalizedMessage());
}
// 12. return result
return result;
}
private static String convertInputStreamToString(InputStream inputStream) throws IOException {
// TODO Auto-generated method stub
BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream));
String line = "";
String result = "";
while((line = bufferedReader.readLine()) != null)
result += line;
inputStream.close();
return result;
}
public boolean isConnected() {
// TODO Auto-generated method stub
ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Activity.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected())
return true;
else
return false;
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
hope this will help others
Just a hint for you: I think it would be easier to use JSON in combination with GSON (instead of a simple String) to transport your data between the app and the webserver.
Do you really need to use HTTPS? If yes I guess you should set SSLSocketFactory for your connection after opening it. Check this answer for more info: https://stackoverflow.com/a/16507195/1407451
I also would like to recomend you not use HttpsURLConnection itself but take look at some libraries for network comunications like Retrofit or Volley. For me it seems to be much easer to use.
I use a JSON parser java class, because it is much easier to transport data from the app and server just like user1369434 said. I forgot where I got the code but here it is, create a java class named JSONparser then post this:
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
// constructor
public JSONParser() {
}
// function get json from url
// by making HTTP POST or GET mehtod
public JSONObject makeHttpRequest(String url, String method,
List<NameValuePair> params) {
// Making HTTP request
try {
// check for request method
if(method == "POST"){
// request method is POST
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}else if(method == "GET"){
// request method is GET
DefaultHttpClient httpClient = new DefaultHttpClient();
String paramString = URLEncodedUtils.format(params, "utf-8");
url += "?" + paramString;
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
}
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jObj;
}
}
Then on your Activty do this:
public class YOUR ACTIVITY extends Activity {
JSONParser jParser = new JSONParser();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Create a Asynctask for the http request
new NAMEOFYOURASYNCTASK().execute();
}
}
and on your asynctask:
class YOURASYNCTASK extends AsyncTask<String, String, String> {
#Override
protected String doInBackground(String... args) {
// TODO Auto-generated method stub
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("username_GET", dealer_user_name ));
// getting JSON string from URL
json = jParser.makeHttpRequest(YOUR URL HERE, "POST", params);
// Check your log cat for JSON reponse
Log.d("All Products: ", json.toString());
modify your php code to throw JSON files back to the app and. like this:
// array for JSON response
$response = array();
// success
$response["success"] = 1;
// echoing JSON response
echo json_encode($response);
you get the idea. this is just a suggestion btw.
i tried to upload the image to the server for two days but i could not post the image .the coding is compiled and run sucessfully but the imag is not write into the server.
this is my coding:
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.widget.Toast;
public class sde extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
loadtoUrl("http://
");
}
private void loadtoUrl(String string) {
// TODO Auto-generated method stub
try {
String pathToOurFile = "/sdcard/tamil.PNG";
FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile) );
BufferedInputStream bis = new BufferedInputStream(fileInputStream,3000);
byte[] bt=new byte[bis.available()];
HttpURLConnection connection = (HttpURLConnection)new URL(string).openConnection();
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.connect();
FileOutputStream input = (FileOutputStream) connection.getOutputStream();
input.write(bt);
} catch (MalformedURLException e) {
Context context = null;
int duration = 0;
Toast.makeText(context, "erro in writing", duration);
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
here is a nice article, http://blog.sptechnolab.com/2011/03/09/android/android-upload-image-to-server/. It contains an example that will upload an image and write it at server side. It works.
public boolean fileUpload(Map<String , String> params, ByteArrayOutputStream file, String link) throws Throwable{
Account user = Util.getAccount(getApplicationContext());
try{
HttpClient httpClient = new DefaultHttpClient();
HttpPost postRequest = new HttpPost(link);
MultipartEntity multipartContent = new MultipartEntity();
if (params != null && !params.isEmpty()) {
for (Map.Entry<String , String> entry : params.entrySet()) {
multipartContent.addPart(entry.getKey(),new StringBody(entry.getValue(),Charset.forName(HTTP.UTF_8)));
}
}
byte[] data = file.toByteArray();
ByteArrayBody img = new ByteArrayBody(data, "capture.jpg");
multipartContent.addPart("image",img);
postRequest.setEntity(multipartContent);
HttpResponse res = httpClient.execute(postRequest);
res.getEntity().getContent().close();
return true;
}catch(Throwable e){
throw e;
}
}
I'm trying to make a login interface in android , i want to connect to a php file that connects to a database.
the database is called "daymanager" and the table is "login"
And this is the php file called login.php :
<?php
$host="localhost";
$user="root";
$pass="";
$dbname="daymanager";
$con= mysql_connect($host,$user,$pass);
$BD= mysql_select_db($dbname, $con);
//$username=$_POST['username'];
//$password=$_POST['password'];
$query=mysql_query("select username,password from login");
$num=mysql_num_rows($query);
if($num==1)
{
while($list=mysql_fetch_array($query))
{
$output=$row[username];
echo json_encode($output);
}
mysql_close();
}
?>
and this is the java code in eclipse :
package com.mounzer.test;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.ArrayList;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.scheme.HostNameResolver;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONObject;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.SharedPreferences;
import android.database.sqlite.SQLiteDatabase;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class Activating extends Activity implements OnClickListener {
Button login;
EditText user,pass;
String username,password;
HttpClient httpclient;
HttpPost httppost;
ArrayList<NameValuePair> namevaluepairs;
HttpResponse response;
HttpEntity entity;
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activ);
initialise();
}
private void initialise() {
// TODO Auto-generated method stub
login =(Button) findViewById(R.id.login);
user=(EditText) findViewById(R.id.user);
pass=(EditText) findViewById(R.id.pass);
login.setOnClickListener(this);
}
public void onClick(View v) {
// TODO Auto-generated method stub
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
httpclient = new DefaultHttpClient();
httppost =new HttpPost("http://192.168.48.1:6789/aglprojet/Login.php");
username=user.getText().toString();
password=pass.getText().toString();
try
{
namevaluepairs = new ArrayList<NameValuePair>();
namevaluepairs.add(new BasicNameValuePair("username", username));
namevaluepairs.add(new BasicNameValuePair("password", password));
httppost.setEntity(new UrlEncodedFormEntity(namevaluepairs));
response=httpclient.execute(httppost);
if(response.getStatusLine().getStatusCode()==200)
{
entity=response.getEntity();
if(entity !=null)
{
InputStream instream=entity.getContent();
JSONObject jsonResponse=new JSONObject(convertStreamToString(instream));
String retUser = jsonResponse.getString("username");
String retPass = jsonResponse.getString("password");
if(username.equals(retUser) && password.equals(retPass))
{
SharedPreferences sp=getSharedPreferences("logindetails", 0);
SharedPreferences.Editor spedit=sp.edit();
spedit.putString("user",username);
spedit.putString("pass",password);
spedit.commit();
Toast.makeText(getBaseContext(),"Succesfully connected", Toast.LENGTH_SHORT).show();
}else {Toast.makeText(getBaseContext(),"Invalid username or password", Toast.LENGTH_SHORT).show(); }
}
}
}catch(Exception e)
{
e.printStackTrace();
Toast.makeText(getBaseContext(),e.toString(), Toast.LENGTH_LONG).show();
}
}
private void Log(String string, String retUser) {
// TODO Auto-generated method stub
}
private static String convertStreamToString(InputStream is) {
/*
* To convert the InputStream to String we use the BufferedReader.readLine()
* method. We iterate until the BufferedReader return null which means
* there's no more data to read. Each line will appended to a StringBuilder
* and returned as String.
*/
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(null, e.toString(), Toast.LENGTH_SHORT).show();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
Toast.makeText(null, e.toString(), Toast.LENGTH_SHORT).show();
}
}
return sb.toString();
}
}
when I try the application from my mobile , it gives me this exception :
org.json.JSONException : value <html> of type java.lang.string cannot be converted to JSONObject
can anyone tell me what should I do please
thank you
My guess is that something is running into an error and returning an error message wrapped in HTML. Try calling your authentication script via a browser or anything that lets you see what it actually returns.
Also, you don't seem to return any fields in your output, so getString("username") etc is never going to work. If you want to return multiple things from your authentication script, put them into an array or something and json_encode that.
And finally, are you sure it's a good idea to send the password to your client...? (I'm guessing you're trying to do this judging by the fact that you try to read them back from the response)