Index: forgon-tools/src/main/java/com/forgon/tools/json/JSONUtil.java
===================================================================
diff -u -r15911 -r15912
--- forgon-tools/src/main/java/com/forgon/tools/json/JSONUtil.java	(.../JSONUtil.java)	(revision 15911)
+++ forgon-tools/src/main/java/com/forgon/tools/json/JSONUtil.java	(.../JSONUtil.java)	(revision 15912)
@@ -384,23 +384,32 @@
 	
 	public static String optString(JsonObject obj,String key,
 			String defValue){
+		if(!obj.has(key)){
+			return defValue;
+		}
 		JsonElement jsonElement = obj.get(key);
 		if(jsonElement.isJsonNull()){
-			return defValue;
+			return null;
 		}
 		return jsonElement.getAsString();
 	}
 	public static Long optLong(JsonObject obj,String key,
 			Long defValue){
+		if(!obj.has(key)){
+			return defValue;
+		}
 		JsonElement jsonElement = obj.get(key);
 		if(jsonElement.isJsonNull()){
-			return defValue;
+			return null;
 		}
 		return jsonElement.getAsLong();
 	}
 	
 	public static int optInt(JsonObject obj,String key,
 			int defValue){
+		if(!obj.has(key)){
+			return defValue;
+		}
 		JsonElement jsonElement = obj.get(key);
 		if(jsonElement.isJsonNull()){
 			return defValue;