HttpGet with request body android

问题

I try to make a request on server by HttpGet. But in message body should be a json object. Code below is not working because unit_id and sercret_key are not sent on server in body message. How can I do it?

JSONObject:

{
"unit_id": 12345,
"secret_key": "sdfadfsa6as987654754"
}

My code:

private HttpResponse makeRequest(int id, String secretKey) throws Exception {
    BasicHttpParams params = new BasicHttpParams();
    params.setParameter("id", id);

    params.setParameter("secret_key", secretKey);

    httpget.setHeader("Accept", "application/json");

    httpget.setParams(params);
    httpget.setHeader("Content-type", "application/json");

    // Handles what is returned from the page
    return httpclient.execute(httpget);
}

Edit: in php this request is made like this

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://0101.apiary.io/api/reservations/");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, FALSE);
curl_setopt($ch, CURLOPT_POSTFIELDS, "{\n    \"unit_id\": 12345,\n    \"secret_key\":     \"sdfadfsa6as987654754\"\n}");
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/json"));
$response = curl_exec($ch);
curl_close($ch);

var_dump($response);

回答1:

Basically, you cannot send row data in the body (JSON or anything) with an HTTP/GET request. The protocol simply does not allow you to do that. Obviously, you will have to use POST to do that in Android too. :)

UPDATE

I was incorrect. Infact the protocol does allow you to put an entity into the request object. This class can be used instead of Apache HttpGet.

public class HttpGetWithEntity extends HttpEntityEnclosingRequestBase {

    public HttpGetWithEntity() {
        super();
    }

    public HttpGetWithEntity(URI uri) {
        super();
        setURI(uri);
    }

    public HttpGetWithEntity(String uri) {
        super();
        setURI(URI.create(uri));
    }

    @Override
    public String getMethod() {
        return HttpGet.METHOD_NAME;
    }
}

And use it like as follows,

HttpClient client = new DefaultHttpClient();
HttpGetWithEntity myGet = new HttpGetWithEntity("Url here");
myGet.setEntity(new StringEntity("This is the body", "UTF8"));
HttpResponse response = client.execute(myGet);

The source for HttpGetWithEntity is found here

回答2:

If you wnat to add JSON object to your request it must be a Post request, and this is how you perform it:

public static String sendComment (String commentString, int taskId, String sessionId, int displayType, String url) throws Exception{

    //creating map object to creat Json object from it
    Map<String, Object> jsonValues = new HashMap<String, Object>();
    jsonValues.put("sessionID", sessionId);
    jsonValues.put("NewTaskComment", commentString);
    jsonValues.put("TaskID" , taskId);
    jsonValues.put("DisplayType" , displayType);
    JSONObject json = new JSONObject(jsonValues);

    //creating a post request.
    DefaultHttpClient client = new DefaultHttpClient();
    HttpPost post = new HttpPost(url + SEND_COMMENT_ACTION);

    //setting json object to post request.
    AbstractHttpEntity entity = new ByteArrayEntity(json.toString().getBytes("UTF8"));
    entity.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
    post.setEntity(entity);

    //this is your response:
    HttpResponse response = client.execute(post);
    return getContent(response);    
}