com.googlecode.json-simple 삭제, com.google.code.gson 추가

pom.xml

@@ -102,10 +102,14 @@
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>
 		</dependency>
-		<dependency>
+		<!-- <dependency>
 			<groupId>com.googlecode.json-simple</groupId>
 			<artifactId>json-simple</artifactId>
 			<version>1.1.1</version>
+		</dependency> -->
+		<dependency>
+			<groupId>com.google.code.gson</groupId>
+			<artifactId>gson</artifactId>
 		</dependency>
 		
 		<!-- /// Redis -->