如何将参数添加到Android中的HTTP GET请求？

我有一个HTTP GET请求，我试图发送。 我尝试通过首先创build一个BasicHttpParams对象并将该参数添加到该对象，然后调用我的HttpGet对象上的setParams( basicHttpParms )来尝试向此请求添加参数。 此方法失败。 但是，如果我手动添加我的参数到我的url（即附加?param1=value1&param2=value2 ）成功。

我知道我在这里失去了一些东西，任何帮助将不胜感激。

Answer 1

我使用NameValuePair和URLEncodedUtils列表来创build我想要的urlstring。

 protected String addLocationToUrl(String url){ if(!url.endsWith("?")) url += "?"; List<NameValuePair> params = new LinkedList<NameValuePair>(); if (lat != 0.0 && lon != 0.0){ params.add(new BasicNameValuePair("lat", String.valueOf(lat))); params.add(new BasicNameValuePair("lon", String.valueOf(lon))); } if (address != null && address.getPostalCode() != null) params.add(new BasicNameValuePair("postalCode", address.getPostalCode())); if (address != null && address.getCountryCode() != null) params.add(new BasicNameValuePair("country",address.getCountryCode())); params.add(new BasicNameValuePair("user", agent.uniqueId)); String paramString = URLEncodedUtils.format(params, "utf-8"); url += paramString; return url; } 

Answer 2

通过获取参数来构builduri，Uri.Builder提供了一个更有效的方法。

 Uri uri = new Uri.Builder() .scheme("http") .authority("foo.com") .path("someservlet") .appendQueryParameter("param1", foo) .appendQueryParameter("param2", bar) .build(); 

Answer 3

方法

 setParams() 

喜欢

 httpget.getParams().setParameter("http.socket.timeout", new Integer(5000)); 

只添加HttpProtocol参数。

要执行httpGet，您应该手动将您的参数附加到url

 HttpGet myGet = new HttpGet("http://foo.com/someservlet?param1=foo&param2=bar"); 

或者使用post请求get和post请求之间的区别在这里解释，如果你有兴趣的话

Answer 4

从HttpComponents 4.2+有一个新的类URIBuilder ，它提供了生成URI的方便途径。

您可以使用直接从stringURL创buildURI：

 List<NameValuePair> listOfParameters = ...; URI uri = new URIBuilder("http://example.com:8080/path/to/resource?mandatoryParam=someValue") .addParameter("firstParam", firstVal) .addParameter("secondParam", secondVal) .addParameters(listOfParameters) .build(); 

否则，您可以显式指定所有参数：

 URI uri = new URIBuilder() .setScheme("http") .setHost("example.com") .setPort(8080) .setPath("/path/to/resource") .addParameter("mandatoryParam", "someValue") .addParameter("firstParam", firstVal) .addParameter("secondParam", secondVal) .addParameters(listOfParameters) .build(); 

一旦你创build了URI对象，那么你只需要创buildHttpGet对象并执行它：

 //create GET request HttpGet httpGet = new HttpGet(uri); //perform request httpClient.execute(httpGet ...//additional parameters, handle response etc. 

Answer 5

 List<NameValuePair> params = new ArrayList<NameValuePair>(); params.add(new BasicNameValuePair("param1","value1"); String query = URLEncodedUtils.format(params, "utf-8"); URI url = URIUtils.createURI(scheme, userInfo, authority, port, path, query, fragment); //can be null HttpGet httpGet = new HttpGet(url); 

URI javadoc

注意： url = new URI(...)是越野车

Answer 6

  HttpClient client = new DefaultHttpClient(); Uri.Builder builder = Uri.parse(url).buildUpon(); for (String name : params.keySet()) { builder.appendQueryParameter(name, params.get(name).toString()); } url = builder.build().toString(); HttpGet request = new HttpGet(url); HttpResponse response = client.execute(request); return EntityUtils.toString(response.getEntity(), "UTF-8"); 

Answer 7

  class Searchsync extends AsyncTask<String, String, String> { @Override protected String doInBackground(String... params) { HttpClient httpClient = new DefaultHttpClient();/*write your url in Urls.SENDMOVIE_REQUEST_URL; */ url = Urls.SENDMOVIE_REQUEST_URL; url = url + "/id:" + m; HttpGet httpGet = new HttpGet(url); try { // httpGet.setEntity(new UrlEncodedFormEntity(nameValuePairs)); // httpGet.setEntity(new StringEntity(json.toString())); HttpResponse response = httpClient.execute(httpGet); HttpEntity resEntity = response.getEntity(); if (resEntity != null) { String responseStr = EntityUtils.toString(resEntity).trim(); Log.d("Response from PHP server", "Response: " + responseStr); Intent i = new Intent(getApplicationContext(), MovieFoundActivity.class); i.putExtra("ifoundmovie", responseStr); startActivity(i); } } catch (UnsupportedEncodingException 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(); } return null; }//enter code here }