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Send Array of objects using HttpPost in Android

I have an app that sends an object to an api via HttpPost. I have some sample such:
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(4);
nameValuePairs.add(new BasicNameValuePair("Destination", destination));
nameValuePairs.add(new BasicNameValuePair("Description", description));
nameValuePairs.add(new BasicNameValuePair("CreatorName ", myName));
In this object, I have an array of "User" objects, which has a DisplayName and Phone. How can I send this array through HttpPost? The following is not recognized by the server (where the quotes are escaped):
nameValuePairs.add(new BasicNameValuePair("Users", "[{"Destination":"St.Louis", "Phone":"1234"}]"));

Simplest way is to convert the Array as String (or JSON string). Then encode it with your server after passing as entity.

try this
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpPost httppostreq = new HttpPost(wurl);
StringEntity se = new StringEntity(nameValuePairs.toString());
se.setContentType("application/json;charset=UTF-8");
se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, "application/json;charset=UTF-8"));
httppostreq.setEntity(se);
HttpResponse httpresponse = httpclient.execute(httppostreq);

I think this code should work.
nameValuePairs.add(new BasicNameValuePair("user[0]", gson.toJson(users.get(0))));
nameValuePairs.add(new BasicNameValuePair("user[1]", gson.toJson(users.get(1))));

java client send Json as parameter or request body

I would like to send a json string using httpost(apache). I have two ways to do it.
I can make it as a parameter like this :
List<NameValuePair> urlParameters = new ArrayList<NameValuePair>();
urlParameters.add(new BasicNameValuePair("json",myJsonString));
httpPost.setEntity(new UrlEncodedFormEntity(urlParameters));
or I can make it as request body:
StringEntity params =new StringEntity(myJsonString);
request.addHeader("content-type", "application/json");
request.setEntity(params);
Which way I should do if myJsonString is very large? I'm using the 1st way because in servlet I just need to read it as a parameter.

UrlEncodedFormEntity equivalent in javascript

In java while doing an HTTP post request using nameValuePairs we write the following code!
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://sometesturl.com");
JSONObject json = new JSONObject();
json.put("id",1);
json.put("name","john");
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(1);
nameValuePairs.add(new BasicNameValuePair("data", "abc"));
nameValuePairs.add(new BasicNameValuePair("samplejson", json.toString()));
post.setEntity(new UrlEncodedFormEntity(nameValuePairs));
}
As seen over here we use the UrlEncodedFormEntity to encode our request body. Similarly, I need to do the same in Javascript. I have seen the EncodeURIComponent method but that doesn't seem to encode the request body. Instead it encodes the URL.
Can someone tell me how to encode the request body in javascript?

Java passing multidimensional array to PHP

I tryied to find some information about this but is a bit difficult since all i found is about javascript instead of java,
I want to know how i can get it in php too because i m not sure how to do it
I am trying to pass an array multidimensional by post, i have no idea how to pass a multdimensional array by java this is my code(i suppose that i only will need to change a few)
try
{
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://web");
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
for (int count=0; count < array.length; count++)
{//this loop is what i need to change but i dont know how to do it
nameValuePairs.add(new BasicNameValuePair("foto",array[count][0]));
nameValuePairs.add(new BasicNameValuePair("media",array[count][1]));
nameValuePairs.add(new BasicNameValuePair("votos",array[count][2]));
}
if(nameValuePairs != null) httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
ResponseHandler<String> responseHandler = new BasicResponseHandler();
httpclient.execute(httppost, responseHandler);
}

I think you should serialize the data to JSON/XML/CSV format and parse it on the server side. Otherwise it will be not so intelligent code.

Log into php-based site and scraping data - problems

I am creating a 3rd party java application (desktop) that needs to connect to a php-based site and log in to gather pertinent data. There is no accessible web service, no API, and every user will have their own secure login. The site uses dojo (if that matters), and I am using Java HttpClient to send the post.
HttpPost httppost = new HttpPost("https://thewebsite.net/index/login"); // .php ?
// Create a new HttpClient and Post Header
HttpClient httpclient = new DefaultHttpClient();
//initialize the response string
String nextpage = "";
try {
// Add nvps
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(3);
nameValuePairs.add(new BasicNameValuePair("", ""));
nameValuePairs.add(new BasicNameValuePair("login", "USER"));
nameValuePairs.add(new BasicNameValuePair("", ""));
nameValuePairs.add(new BasicNameValuePair("pass", "PASSWORD"));
nameValuePairs.add(new BasicNameValuePair("Submit", ""));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
userID = EntityUtils.toString(response.getEntity());
System.out.println(nextpage);
httppost.releaseConnection();
}
...
Now, the issue I'm having is that the response given to me is a validation jscript for the user / pass fields through dojo.
<script type='text/javascript'>
dojo.require("dojox.validate._base");
function validate_RepeatPassword(val, constraints)
{
var isValid = false;
if(constraints) {
var otherInput = dijit.byId(constraints[0]);
if(otherInput) {
var otherValue = otherInput.value;
isValid = (val == otherValue);
}
}
return isValid;
}
</script>
I simply want to connect, parse an html response, and close the connection.
When I use firebug, I get this as the post method, but I can't seem to get it to run:
Referer https://thewebsite.net/index/login
Source login=USER&pass=PASSWORD
When I use the HttpPost client to construct a direct post url without namevaluepairs:
HttpPost httppost = new HttpPost("https://thewebsite.net/index/login?login=USER&pass=PASSWORD");
, I get an error response that states "the user and pass fields cannot be left blank."
My question is: Is there a direct method to log in that is simpler that I'm missing that will allow me to successfully continue past log in?
Thanks - I love the SO community; hope you can help.

I think best library for doing this is jsoup
Connection.Response res =
Jsoup.connect("https://thewebsite.net/index/login?login=USER&pass=PASSWORD")
.method(Method.POST)
.execute();
After this you need to make verification also. You need to read cookies, request parameters and header parameters and this will work.

I didn't end up using your exact code (with the post parameters), but JSoup was the fix.
here's what I used:
`res = Jsoup.connect("https://thewebsite.net/index/login")
.data("login", User).data("pass", Pass)
.userAgent("Chrome").method(Method.POST).execute();
//then I grabbed the cookie and sent the next post for the data
Document t = res.parse(); //for later use
SessionID = res.cookie("UNIQUE_NAME");
//the JSON
Connection.Response driverx = Jsoup.connect("https://thewebsite.net/datarequest/data").cookie("UNIQUE_NAME",SessionID).userAgent("Chrome").method(Method.POST).execute();`