好吧，我已经看了多个例子，我的代码似乎是正确的，但无论出于什么原因，参数没有被添加到URL。我试图连接到Last.Fm API，我的代码如下：

searchIT.setOnClickListener(new OnClickListener() 
    {
        
        @Override
        public void onClick(View v) 
        {
            // TODO Auto-generated method stub
            //Create new HTTPClient and Post header
            HttpPost API_ROOT = new HttpPost("http://ws.audioscrobbler.com/2.0/");
            HttpClient httpclient = new DefaultHttpClient();
            
            try 
            {
                //Add Data
                List<NameValuePair> nameValPairs = new ArrayList<NameValuePair>(4);
                
                nameValPairs.add(new BasicNameValuePair("method", "artist.getevents")); //Get events for artist
                nameValPairs.add(new BasicNameValuePair("artist", namesBox.getText().toString()));  //Get artist name
                nameValPairs.add(new BasicNameValuePair("autocorrect", "1"));   //Turn on AutoCorrect
                nameValPairs.add(new BasicNameValuePair("api_key", "xxxxxxxxxxxxxxxxxxxx")); //API Key - redacted for privacy
                API_ROOT.setEntity(new UrlEncodedFormEntity(nameValPairs));
                Log.i(TAG, "URL: " + API_ROOT.getURI().toString());
                
                //Execute HTTP Post Request
                HttpResponse response = httpclient.execute(API_ROOT);
                
                
            } 
            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();
            }
        }
    });

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我只是错过了什么吗？在日志中的网址显示为：http://ws.audioscrobbler.com/2.0/，所以它似乎错过了我试图传递到它的所有参数。任何想法，提示，更正或建议？