GET, DELETE method의 경우 querystring 추가

@@ -17,6 +17,8 @@ import java.io.InputStreamReader;
 import java.io.OutputStream;
 import java.net.HttpURLConnection;
 import java.net.URL;
+import java.util.Iterator;
+import java.util.Set;
 
 public class Api {
     public interface Callback {
@@ -32,8 +34,18 @@ public class Api {
             public void run() {
                 ApiResult apiResult;
                 try {
-                    Log.d("test", "callApi");
-                    URL url = new URL("http://" + Api.DOMAIN + endpoint);
+                    String queryString = "";
+                    if(("GET".equals(method) || "DELETE".equals(method)) && params != null) {
+                        Set<String> keys = params.keySet();
+                        Iterator<String> iter = keys.iterator();
+                        while(iter.hasNext()) {
+                            String key = iter.next();
+                            queryString += "&" + key + "=" + params.get(key).getAsString();
+                        }
+                        queryString = "?" + queryString.substring(1);
+                    }
+
+                    URL url = new URL("http://" + Api.DOMAIN + endpoint + queryString);
                     HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                     conn.setRequestMethod(method);