issue #29 http代理支持

weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/RequestExecutor.java

@@ -11,13 +11,23 @@ import me.chanjar.weixin.common.exception.WxErrorException;
 
 /**
  * http请求执行器
- * @author Daniel Qian
  *
  * @param <T> 返回值类型
  * @param <E> 请求参数类型
  */
 public interface RequestExecutor<T, E> {
 
+  /**
+   *
+   * @param httpclient 传入的httpClient
+   * @param httpProxy http代理对象，如果没有配置代理则为空
+   * @param uri       uri
+   * @param data      数据
+   * @return
+   * @throws WxErrorException
+   * @throws ClientProtocolException
+   * @throws IOException
+   */
   public T execute(CloseableHttpClient httpclient, HttpHost httpProxy, String uri, E data) throws WxErrorException, ClientProtocolException, IOException;
 
 }