configure json serialization properties

1 files changed, 8 insertions, 1 deletions

diff --git a/juick-www/src/main/java/com/juick/www/VKontakteLogin.java b/juick-www/src/main/java/com/juick/www/VKontakteLogin.java
index 83619b2a..1ccf36b6 100644
--- a/juick-www/src/main/java/com/juick/www/VKontakteLogin.java
+++ b/juick-www/src/main/java/com/juick/www/VKontakteLogin.java
@@ -17,6 +17,7 @@
  */
 package com.juick.www;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.juick.server.UserQueries;
 import com.juick.www.vk.*;
@@ -43,7 +44,13 @@ public class VKontakteLogin {
     private static final String VK_SECRET = "z2afNI8jA5lIpZ2jsTm1";
     private static final String VK_REDIRECT = "http://juick.com/_vklogin";
 
-    private final ObjectMapper mapper = new ObjectMapper();
+    public VKontakteLogin() {
+        mapper = new ObjectMapper();
+        mapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
+        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+        mapper.setSerializationInclusion(JsonInclude.Include.NON_DEFAULT);
+    }
+    private final ObjectMapper mapper;
 
     protected void doGet(JdbcTemplate sql, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
         String code = request.getParameter("code");