diff --git a/src/main/java/haflow/engine/oozie/OozieEngine.java b/src/main/java/haflow/engine/oozie/OozieEngine.java
index 33a34b0..f8290ad 100644
--- a/src/main/java/haflow/engine/oozie/OozieEngine.java
+++ b/src/main/java/haflow/engine/oozie/OozieEngine.java
@@ -14,8 +14,8 @@ import haflow.module.DataType;
 import haflow.module.Module;
 import haflow.module.ModuleConfiguration;
 import haflow.module.ModuleEndpoint;
-import haflow.module.util.ModuleUtil;
 import haflow.service.HdfsService;
+import haflow.service.ModuleService;
 import haflow.service.NodeConfigurationService;
 import haflow.util.ClusterConfiguration;
 
@@ -331,7 +331,7 @@ public class OozieEngine extends AbstractEngine {
 	}
 
 	@Autowired
-	private void setModuleUtil(ModuleUtil moduleUtil) {
+	private void setModuleUtil(ModuleService moduleUtil) {
 		this.moduleUtil = moduleUtil;
 	}
 
@@ -352,7 +352,7 @@ public class OozieEngine extends AbstractEngine {
 
 	private Logger logger = Logger.getLogger(this.getClass().getName());
 	
-	private ModuleUtil moduleUtil;
+	private ModuleService moduleUtil;
 	private HdfsService hdfsService;
 	private OozieService oozieService;
 	private FlowDeployService flowDeployService;
diff --git a/src/main/java/haflow/module/util/ModuleUtil.java b/src/main/java/haflow/service/ModuleService.java
similarity index 98%
rename from src/main/java/haflow/module/util/ModuleUtil.java
rename to src/main/java/haflow/service/ModuleService.java
index b7e0cc4..f9686de 100644
--- a/src/main/java/haflow/module/util/ModuleUtil.java
+++ b/src/main/java/haflow/service/ModuleService.java
@@ -1,5 +1,5 @@
 
-package haflow.module.util;
+package haflow.service;
 
 import haflow.module.AbstractModule;
 import haflow.module.Module;
@@ -16,7 +16,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 @Component
-public class ModuleUtil {
+public class ModuleService {
 	private ClassHelper classHelper;
 
 	private ClassHelper getClassHelper() {
diff --git a/src/main/java/haflow/ui/controller/AdminLogonController.java b/src/main/java/haflow/ui/controller/AdminLogonController.java
index a0badab..97bf3fb 100644
--- a/src/main/java/haflow/ui/controller/AdminLogonController.java
+++ b/src/main/java/haflow/ui/controller/AdminLogonController.java
@@ -3,8 +3,8 @@ package haflow.ui.controller;
 
 import javax.servlet.http.HttpServletRequest;
 
-import haflow.module.util.Md5Util;
 import haflow.ui.helper.UserHelper;
+import haflow.util.Md5Util;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
@@ -58,7 +58,7 @@ public class AdminLogonController {
 	public String post(RedirectAttributes redirectAttributes,HttpServletRequest request,@RequestParam("username") String username,@RequestParam("password") String password) {
 		
 		if(username==""||password==""){
-			redirectAttributes.addFlashAttribute("message", "ÇëÌîдÓû§ÃûÃÜÂë");
+			redirectAttributes.addFlashAttribute("message", "����д�û�������");
 			return "redirect:/";
 		}
 		password=Md5Util.getMd5Hex(password);
@@ -71,7 +71,7 @@ public class AdminLogonController {
 			return "redirect:/adminhome";
 		}
 		else{
-			redirectAttributes.addFlashAttribute("message","Óû§ÃûÃÜÂë´íÎó");
+			redirectAttributes.addFlashAttribute("message","�û����������");
 			return "redirect:/";
 		}
 		
diff --git a/src/main/java/haflow/ui/controller/MainLogonController.java b/src/main/java/haflow/ui/controller/MainLogonController.java
index 7f0042c..4081c49 100644
--- a/src/main/java/haflow/ui/controller/MainLogonController.java
+++ b/src/main/java/haflow/ui/controller/MainLogonController.java
@@ -3,9 +3,9 @@ package haflow.ui.controller;
 
 import javax.servlet.http.HttpServletRequest;
 
-import haflow.module.util.Md5Util;
 import haflow.ui.helper.HdfsHelper;
 import haflow.ui.helper.UserHelper;
+import haflow.util.Md5Util;
 
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
diff --git a/src/main/java/haflow/ui/helper/ModuleHelper.java b/src/main/java/haflow/ui/helper/ModuleHelper.java
index 0a09fda..017afab 100644
--- a/src/main/java/haflow/ui/helper/ModuleHelper.java
+++ b/src/main/java/haflow/ui/helper/ModuleHelper.java
@@ -3,7 +3,7 @@ package haflow.ui.helper;
 import haflow.module.Module;
 import haflow.module.ModuleConfiguration;
 import haflow.module.ModuleEndpoint;
-import haflow.module.util.ModuleUtil;
+import haflow.service.ModuleService;
 import haflow.ui.model.ModuleConfigurationModel;
 import haflow.ui.model.ModuleBriefModel;
 import haflow.ui.model.ModuleEndpointModel;
@@ -20,7 +20,7 @@ import org.springframework.stereotype.Component;
 @Component
 public class ModuleHelper {
 	private static ModuleHelper moduleHelper;
-	private ModuleUtil moduleUtil;
+	private ModuleService moduleUtil;
 
 	public static ModuleHelper getModuleHelper() {
 		return moduleHelper;
@@ -30,12 +30,12 @@ public class ModuleHelper {
 		ModuleHelper.moduleHelper = moduleHelper;
 	}
 
-	private ModuleUtil getModuleUtil() {
+	private ModuleService getModuleUtil() {
 		return moduleUtil;
 	}
 
 	@Autowired
-	private void setModuleUtil(ModuleUtil moduleUtil) {
+	private void setModuleUtil(ModuleService moduleUtil) {
 		this.moduleUtil = moduleUtil;
 	}
 
diff --git a/src/main/java/haflow/module/util/Md5Util.java b/src/main/java/haflow/util/Md5Util.java
similarity index 96%
rename from src/main/java/haflow/module/util/Md5Util.java
rename to src/main/java/haflow/util/Md5Util.java
index cb01647..995f8a7 100644
--- a/src/main/java/haflow/module/util/Md5Util.java
+++ b/src/main/java/haflow/util/Md5Util.java
@@ -1,4 +1,4 @@
-package haflow.module.util;
+package haflow.util;
 
 import java.io.UnsupportedEncodingException;
 import java.security.MessageDigest;
diff --git a/src/main/webapp/WEB-INF/views/admin.jsp b/src/main/webapp/WEB-INF/views/admin.jsp
index 26bd3d0..32e7962 100644
--- a/src/main/webapp/WEB-INF/views/admin.jsp
+++ b/src/main/webapp/WEB-INF/views/admin.jsp
@@ -1,4 +1,4 @@
-<%@page import="haflow.module.util.ModuleUtil"%>
+<%@page import="haflow.service.ModuleService"%>
 <%@page import="haflow.ui.model.ModuleBriefModel"%>
 <%@page import="haflow.ui.helper.ModuleHelper"%>
 <%@ page language="java" contentType="text/html; charset=utf-8"
diff --git a/src/test/java/haflow/test/ModuleUtilTest.java b/src/test/java/haflow/test/ModuleUtilTest.java
index 63b70bc..dba2efb 100644
--- a/src/test/java/haflow/test/ModuleUtilTest.java
+++ b/src/test/java/haflow/test/ModuleUtilTest.java
@@ -5,7 +5,7 @@ import java.util.UUID;
 
 import haflow.module.Module;
 import haflow.module.AbstractModule;
-import haflow.module.util.ModuleUtil;
+import haflow.service.ModuleService;
 
 import org.junit.Assert;
 import org.junit.Test;
@@ -15,14 +15,14 @@ import org.springframework.test.context.junit4.AbstractJUnit4SpringContextTests;
 
 @ContextConfiguration(locations = "classpath:servlet-context.xml")
 public class ModuleUtilTest extends AbstractJUnit4SpringContextTests {
-	private ModuleUtil moduleUtil;
+	private ModuleService moduleUtil;
 
-	private ModuleUtil getModuleUtil() {
+	private ModuleService getModuleUtil() {
 		return moduleUtil;
 	}
 
 	@Autowired
-	private void setModuleUtil(ModuleUtil moduleUtil) {
+	private void setModuleUtil(ModuleService moduleUtil) {
 		this.moduleUtil = moduleUtil;
 	}