Refactoring: no need content param for sendGet

Author: Javen

src/cn/jpush/api/common/IHttpClient.java

@@ -49,7 +49,7 @@ public enum RequestMethod {
 
     public static final int DEFAULT_MAX_RETRY_TIMES = 3;
 
-    public ResponseWrapper sendGet(String url, String params) 
+    public ResponseWrapper sendGet(String url) 
             throws APIConnectionException, APIRequestException;
 
     public ResponseWrapper sendPost(String url, String content) 

src/cn/jpush/api/common/NativeHttpClient.java

@@ -45,9 +45,9 @@ public NativeHttpClient(String authCode, int maxRetryTimes, HttpProxy proxy) {
         initSSL();
     }
 
-    public ResponseWrapper sendGet(String url, String params) 
+    public ResponseWrapper sendGet(String url) 
             throws APIConnectionException, APIRequestException {
-		return sendRequest(url, params, RequestMethod.GET);
+		return sendRequest(url, null, RequestMethod.GET);
 	}
 
     public ResponseWrapper sendPost(String url, String content) 

src/cn/jpush/api/report/ReportClient.java

@@ -47,7 +47,7 @@ public ReceivedsResult getReceiveds(String msgIds)
         checkMsgids(msgIds);
 
         String url = REPORT_HOST_NAME + REPORT_RECEIVE_PATH + "?msg_ids=" + msgIds;
-        ResponseWrapper response = _httpClient.sendGet(url, null);
+        ResponseWrapper response = _httpClient.sendGet(url);
 
         return ReceivedsResult.fromResponse(response);
 	}
@@ -57,7 +57,7 @@ public MessagesResult getMessages(String msgIds)
         checkMsgids(msgIds);
 
         String url = REPORT_HOST_NAME + REPORT_MESSAGE_PATH + "?msg_ids=" + msgIds;
-        ResponseWrapper response = _httpClient.sendGet(url, null);
+        ResponseWrapper response = _httpClient.sendGet(url);
 
         return MessagesResult.fromResponse(response);
     }
@@ -73,7 +73,7 @@ public UsersResult getUsers(TimeUnit timeUnit, String start, int duration)
         String url = REPORT_HOST_NAME + REPORT_USER_PATH
                 + "?time_unit=" + timeUnit.toString()
                 + "&start=" + startEncoded + "&duration=" + duration;
-        ResponseWrapper response = _httpClient.sendGet(url, null);
+        ResponseWrapper response = _httpClient.sendGet(url);
 
         return UsersResult.fromResponse(response);
     }