diff --git a/src/main/java/kcc/let/uat/uia/web/APILoginContoller.java b/src/main/java/kcc/let/uat/uia/web/APILoginContoller.java
index 012fff09..a7a94872 100644
--- a/src/main/java/kcc/let/uat/uia/web/APILoginContoller.java
+++ b/src/main/java/kcc/let/uat/uia/web/APILoginContoller.java
@@ -14,6 +14,7 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;
 
+import org.apache.commons.lang3.StringUtils;
 import org.json.JSONObject;
 import org.springframework.context.ApplicationContext;
 import org.springframework.http.ResponseEntity;
@@ -80,7 +81,7 @@ public class APILoginContoller {
 		key = "std02@forwiz.comxpnBtqsev3nh9mryXRdL9QRSR72XuNc08ese5iXHb0Waq1dMnSdkHHqKCgoSFeyH.amV1c19kb21haW4vTE1T";
 		returnUrl = "/web/main/mainPage.do";*/
 		
-		if(userId == null || key == null) {
+		if(StringUtils.isEmpty(userId) || StringUtils.isEmpty(key)) {
 		    return "redirect:/web/main/mainPage.do";
 		}