分页取cookie时增加非空判断

src/main/java/com/nis/domain/Page.java

@@ -80,7 +80,7 @@ public class Page<T> {
 		this(request, response, Integer.valueOf(Configurations.getIntProperty("page.pageSize", 30)));
 		
 			try {
-				if(CookieUtil.getValue(request, "Language").equalsIgnoreCase("zh_cn")){
+				if(CookieUtil.getValue(request, "Language")!=null&&CookieUtil.getValue(request, "Language").equalsIgnoreCase("zh_cn")){
 						prevPage="上一页";
 						nextPage="下一页";
 						currentPage="当前";