I was unable to get the code you suggested
(json_encode($topLevelArray, JSON_FORCE_OBJECT); ) to operate without
error.
I am using a php file and MySQL SELECT statements on my site to
present a series of organizations
which can be further reduced to a single organization. I am trying to
bring back the single selected
organization to my Android application. I was able to grab the line I
needed and place it into the variable jnow
but for some reason it does not seem to recognize that the first
character is indeed '['. The code is as follows:
public class SelectLocation extends Activity {
/** Called when the activity is first created. */
String result = "";
String jnow = "";
private Reader in;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
BufferedReader in = null;
try {
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet();
request.setURI(new URI("http://www.mysite.com/
grabitgood.php"));
HttpResponse response = client.execute(request);
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();
String result = sb.toString();
String jnow = result.substring(result.indexOf("["),
result.length()-1);
int herenow = (result.lastIndexOf("["));
System.out.println(jnow);
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
//parse json data
try{
JSONArray jArray = new JSONArray(jnow);
for(int i=0;i<jArray.length();i++){
JSONObject json_data =
jArray.getJSONObject(i);
Log.i("log_tag","org_id:
"+json_data.getInt("id")+
", orgname:
"+json_data.getString("orgname")+
", cityname:
"+json_data.getString("cityname")+
", statename:
"+json_data.getString("statename")
);
}
}catch(JSONException e){
Log.e("log_tag", "Error parsing data "+e.toString());
}
}
public void BufferedReader(Reader in) {
this.in = in;
}
}
There are two lines that are read. The first line is:
<html><head><title>Find Organizations</title></head><body
style="background-color:#33990f"><body>
The second line read is:
[{"org_id":"39575","clubname":"ARTHRITIS FOUNDATION - VIRGINIA
CHAPTER","orgcity":"RICHMOND","orgstate":"VA"}]
The contents of jnow is only the second line which is:
[{"org_id":"39575","clubname":"ARTHRITIS FOUNDATION - VIRGINIA
CHAPTER","orgcity":"RICHMOND","orgstate":"VA"}]
My logcat gives me the following error and I am not sure why? Can
anyone point me in the right direction?
10-22 16:39:13.433: INFO/global(222): Default buffer size used in
BufferedReader constructor. It would be better to be explicit if an 8k-
char buffer is required.
10-22 16:39:13.463: INFO/System.out(222):
[{"org_id":"39575","clubname":"ARTHRITIS FOUNDATION - VIRGINIA
CHAPTER","orgcity":"RICHMOND","orgstate":"VA"}]
10-22 16:39:16.553: ERROR/log_tag(222): Error parsing data
org.json.JSONException: A JSONArray text must start with '[' at
character 0 of
10-22 16:39:17.343: INFO/ActivityManager(53): Displayed activity
com.oys.gfa.acecapper/.SelectLocation: 8167 ms (total 8167 ms)
On Oct 12, 10:07 pm, Brad Gies <rbg...@gmail.com> wrote:
> You should be able to get rid of the HTML, but it's tough to give you
> advice when we don't know the web server setup.
>
> If it's causing too many problems to get rid of the HTML, you can always
> do other things. I had the same problem on one of my sites, and to get
> the website admin to do anything was a 6 week problem, so I just sent
> back my results like this:
>
> echo "|||STARTMYJSON|||=" . json_encode($json0) . "=|||ENDMYJSON|||";
>
> When you get your results in your Android app into a string, just do a
> substring starting with the Start location and ending with the end
> location. It's not pretty but it's fairly fast.
>
> Also, I trashed your first email before I decided to respond, but I
> think you were using PHP. You need to be aware that PHP will return
> aJSONobject on occassion depending on your data, so if you have a newer
> version of PHP, you can use the JSON_FORCE_OBJECT param to make it an
> object every time, and your array will be the first property. It's
> safer, faster, and less code than having to code for either an object or
> an array in your Android app.
>
> json_encode($topLevelArray, JSON_FORCE_OBJECT);
>
> Sincerely,
>
> Brad Gies
> -----------------------------------------------------------------------
> Bistro Bot - Bistro
> Blurbhttp://bgies.comhttp://bistroblurb.comhttp://ihottonight.comhttp://forcethetruth.com
> -----------------------------------------------------------------------
>
> Everything in moderation, including abstinence (paraphrased)
>
> Every person is born with a brain... Those who learn to use it well are the
> successful happy ones - Brad Gies
>
> Adversity can make or break you... It's your choice... Choose wisely - Brad
> Gies
>
> Never doubt that a small group of thoughtful, committed people can
> change the world. Indeed. It is the only thing that ever has - Margaret Mead
>
> On 12/10/2010 2:49 PM, Capt Spaghetti wrote:
>
>
>
> > I removed html from the php file as suggested by Kostya Vasilyev and
> > changed the approach to retrieve the information. The new Android code
> > is as follows:
>
> > ========================
> > public void onCreate(Bundle savedInstanceState) {
> > super.onCreate(savedInstanceState);
> > BufferedReader in = null;
> > try {
> > HttpClient client = new DefaultHttpClient();
> > HttpGet request = new HttpGet();
> > request.setURI(new
> > URI("http://www.onyoursixinc.com/
> > grabitgood.php"));
> > HttpResponse response = client.execute(request);
> > 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();
>
> > String page = sb.toString();
> > System.out.println(page);
> > } catch (URISyntaxException e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > } catch (ClientProtocolException e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > } catch (IOException e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > } finally {
> > if (in != null) {
> > try {
> > in.close();
> > } catch (IOException e) {
> > e.printStackTrace();
> > }
> > }
> > }
>
> > //parsejsondata
> > try{
> > JSONArray jArray = new JSONArray(result);
> > for(int i=0;i<jArray.length();i++){
> > JSONObject json_data =
> > jArray.getJSONObject(i);
>
> > Log.i("log_tag","org_id:"+json_data.getInt("id")+
> > ", orgname:
> > "+json_data.getString("orgname")+
> > ", orgcity:
> > "+json_data.getString("orgcity")+
> > ",
> > orgstate:"+json_data.getString("orgstate")
> > );
> > }
> > }catch(JSONException e){
> > Log.e("log_tag", "Errorparsing data "+e.toString());
> > }
>
> > }
> > =====================
> > from my LOGCAT I can see I am getting the correct select response but
> > it looks like I am now picking up the html tags from the connect.php
> > file ince I use
> > require ("connect.php"); The LOGCAT now shows me the following:
>
> > ================
> > 10-12 17:37:41.320: INFO/System.out(218):<html><head><title>Find
> > Organizations</title></head><body style="background-
> > color:#33990f"><body>
> > 10-12 17:37:41.330: INFO/System.out(218):
> > [{"org_id":"39575","orgname":"ARTHRITIS FOUNDATION - VIRGINIA
> > CHAPTER","orgcity":"RICHMOND","orgstate":"VA"}]
> > 10-12 17:37:41.350:ERROR/log_tag(218):Errorparsing data
> > org.json.JSONException: A JSONArray text must start with '[' at
> > character 0 of
> > 10-12 17:37:42.042: INFO/ActivityManager(53): Displayed activity
> > com.oys.gfa.acecapper/.SelectOrgs: 40958 ms (total 40958 ms)
>
> > I am getting closer but still "no cigar". I don't know how to get rid
> > of all the HTML since I will actually need to have the user enter a
> > city and state and then "down select" from the response. The php file
> > I am using is a hard coded SELECT since I figured dealing withJSON
> > would be the more difficult problem to tackle.
>
> > Thanks,
> > Capt Spaghetti
>
> > On Oct 12, 3:57 pm, Mark Murphy<mmur...@commonsware.com> wrote:
> >> On Tue, Oct 12, 2010 at 3:51 PM, Capt Spaghetti<gene_august...@msn.com>
> >> wrote:
> >>> HttpPost httppost = new HttpPost("graborginfo.php");
> >> That is not a valid URL.
>
> >>> HttpResponse response = httpclient.execute(httppost);
> >>> HttpEntity entity = response.getEntity();
> >>> InputStream is = entity.getContent();
> >>> }catch(Exception e){
> >>> Log.e("log_tag", "Errorin http connection
> >>> "+e.toString());
> >>> }
> >>> //convert response to string
> >>> try{
> >>> InputStreamReader is = new
> >>> InputStreamReader(System.in);
> >>> BufferedReader reader = new BufferedReader(is);
> >>> StringBuilder sb = new StringBuilder();
> >>> String line = null;
> >>> while ((line = reader.readLine()) != null) {
> >>> sb.append(line + "\n");
> >>> }
> >>> is.close();
> >>> result=sb.toString();
> >>> }catch(Exception e){
> >>> Log.e("log_tag", "Errorconverting result
> >>> "+e.toString());
> >>> }
> >> For this, I recommend using the BasicResponseHandler pattern:
>
> >>http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/httpc...
>
> >> (orhttp://bit.ly/lCVgZifthat URL is too long)
>
> >>> The LOGCAT output for theerroris as follows:
> >>> =====================
> >>> 10-12 11:14:08.199: INFO/global(233): Default buffer size used in
> >>> BufferedReader constructor. It would be better to be explicit if an 8k-
> >>> char buffer is required.
> >>> 10-12 11:14:20.460:ERROR/log_tag(233):Errorparsing data
> >>> org.json.JSONException: A JSONArray text must start with '[' at
> >>> character 0 of
> >> You may want to dump the value you are trying toparseasJSONto
> >> LogCat, as it is not what you think it is.
>
> >> --
> >> Mark Murphy (a Commons
> >> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> >> Android 2.2 Programming Books:http://commonsware.com/books-Hide quoted
> >> text -
>
> >> - Show quoted text -- Hide quoted text -
>
> - Show quoted text -
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