From 6ae100e3903ae9ec8f9f23f74a38776113511c70 Mon Sep 17 00:00:00 2001
From: nkorange <zpf.073@gmail.com>
Date: Fri, 8 Mar 2019 10:43:26 +0800
Subject: [PATCH] Fix http client error

---
 .../java/com/alibaba/nacos/client/naming/net/HttpClient.java  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/client/src/main/java/com/alibaba/nacos/client/naming/net/HttpClient.java b/client/src/main/java/com/alibaba/nacos/client/naming/net/HttpClient.java
index a0f4a4416..d05bd236d 100644
--- a/client/src/main/java/com/alibaba/nacos/client/naming/net/HttpClient.java
+++ b/client/src/main/java/com/alibaba/nacos/client/naming/net/HttpClient.java
@@ -69,7 +69,7 @@ public class HttpClient {
         HttpURLConnection conn = null;
         try {
             String encodedContent = encodingParams(paramValues, encoding);
-            url += (null == encodedContent) ? "" : ("?" + encodedContent);
+            url += (StringUtils.isEmpty(encodedContent)) ? "" : ("?" + encodedContent);
 
             conn = (HttpURLConnection) new URL(url).openConnection();
 
@@ -174,7 +174,7 @@ public class HttpClient {
     private static String encodingParams(Map<String, String> params, String encoding)
         throws UnsupportedEncodingException {
         if (null == params || params.isEmpty()) {
-            return null;
+            return "";
         }
 
         params.put("encoding", encoding);