diff --git a/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/util/BrowserUtils.java b/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/util/BrowserUtils.java
index 8647ea8d..5234ab6f 100644
--- a/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/util/BrowserUtils.java
+++ b/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/common/util/BrowserUtils.java
@@ -8,22 +8,30 @@ import java.util.regex.Pattern;
 import javax.servlet.http.HttpServletRequest;
 
 /**
- * 
+ *
  * @Author 张代浩
- * 
+ *
  */
 public class BrowserUtils {
-	
+
+	private BrowserUtils(){
+
+	}
+
+	private static final String USER_AGENT = "USER-AGENT";
+
+	private static final String RV_11 = "rv:11.0";
+
 	// 判断是否是IE
 	public static boolean isIE(HttpServletRequest request) {
-		return (request.getHeader("USER-AGENT").toLowerCase().indexOf("msie") > 0 || request
-				.getHeader("USER-AGENT").toLowerCase().indexOf("rv:11.0") > 0) ? true
+		return (request.getHeader(USER_AGENT).toLowerCase().indexOf("msie") > -1 || request
+				.getHeader(USER_AGENT).toLowerCase().contains(RV_11)) ? true
 				: false;
 	}
 
 	/**
 	 * 获取IE版本
-	 * 
+	 *
 	 * @param request
 	 * @return
 	 */
@@ -47,7 +55,7 @@ public class BrowserUtils {
 
 	/**
 	 * 获取浏览器类型
-	 * 
+	 *
 	 * @param request
 	 * @return
 	 */
@@ -91,11 +99,11 @@ public class BrowserUtils {
 
 	private static boolean getBrowserType(HttpServletRequest request,
 			String brosertype) {
-		return request.getHeader("USER-AGENT").toLowerCase()
-				.indexOf(brosertype) > 0 ? true : false;
+		return request.getHeader(USER_AGENT).toLowerCase()
+				.indexOf(brosertype) > -1 ? true : false;
 	}
 
-	private final static String IE11 = "rv:11.0";
+	private final static String IE11 = RV_11;
 	private final static String IE10 = "MSIE 10.0";
 	private final static String IE9 = "MSIE 9.0";
 	private final static String IE8 = "MSIE 8.0";
@@ -112,7 +120,7 @@ public class BrowserUtils {
 	private final static String OTHER = "其它";
 
 	public static String checkBrowse(HttpServletRequest request) {
-		String userAgent = request.getHeader("USER-AGENT");
+		String userAgent = request.getHeader(USER_AGENT);
 		if (regex(OPERA, userAgent)) {
 			return OPERA;
 		}
@@ -164,26 +172,26 @@ public class BrowserUtils {
 		return m.find();
 	}
 
-	
+
 	private static Map<String, String> langMap = new HashMap<String, String>();
 	private final static String ZH = "zh";
 	private final static String ZH_CN = "zh-cn";
-	
+
 	private final static String EN = "en";
 	private final static String EN_US = "en";
-	
-	
-	static 
+
+
+	static
 	{
 		langMap.put(ZH, ZH_CN);
 		langMap.put(EN, EN_US);
 	}
-	
+
 	public static String getBrowserLanguage(HttpServletRequest request) {
-		
+
 		String browserLang = request.getLocale().getLanguage();
 		String browserLangCode = (String)langMap.get(browserLang);
-		
+
 		if(browserLangCode == null)
 		{
 			browserLangCode = EN_US;
@@ -198,7 +206,7 @@ public class BrowserUtils {
 
     /** 判断请求是否来自移动端 */
     public static boolean isMobile(HttpServletRequest request) {
-        String ua = request.getHeader("User-Agent").toLowerCase();
+        String ua = request.getHeader(USER_AGENT).toLowerCase();
         Pattern pattern = Pattern.compile("(phone|pad|pod|iphone|ipod|ios|ipad|android|mobile|blackberry|iemobile|mqqbrowser|juc|fennec|wosbrowser|browserng|webos|symbian|windows phone)");
         return pattern.matcher(ua).find();
     }