diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 23fd401fd..3a28e4b72 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -3296,6 +3296,14 @@ def strip_html(text,len=0,endss="...")
   return ss
 end
 
+def message_content content
+  content = (strip_html content).strip
+  if content.gsub(" ", "") == ""
+    content = "[非文本消息]"
+  end
+  content
+end
+
 def get_hw_index(hw,is_teacher)
   if is_teacher
     homeworks = hw.course.homework_commons.order("created_at asc")
diff --git a/app/views/layouts/_show_messages_list.html.erb b/app/views/layouts/_show_messages_list.html.erb
index ba31c4379..0829b9c42 100644
--- a/app/views/layouts/_show_messages_list.html.erb
+++ b/app/views/layouts/_show_messages_list.html.erb
@@ -5,7 +5,7 @@
 <ul class="shadowbox_news_list">
   <% messages.each do |ma| %>
     <% if ma.class == SystemMessage %>
-        <li><a href="<%=user_system_messages_path(User.current) %>" target="_blank" title="Trustie平台 发布新消息：<%= ma.subject.blank? ? (ma.content.nil? ? ma.description.html_safe : ma.content.html_safe) : ma.subject%>"><span class="shadowbox_news_user">Trustie平台 </span>发布新消息：<%= ma.subject.blank? ? (ma.content.nil? ? ma.description.html_safe : ma.content.html_safe) : ma.subject%></a></li>
+        <li><a href="<%=user_system_messages_path(User.current) %>" target="_blank" title="Trustie平台 发布新消息：<%= ma.subject.blank? ? (ma.content.nil? ? message_content(ma.description) : message_content(ma.content)) : ma.subject%>"><span class="shadowbox_news_user">Trustie平台 </span>发布新消息：<%= ma.subject.blank? ? (ma.content.nil? ? message_content(ma.description) : message_content(ma.content)) : ma.subject%></a></li>
     <% elsif ma.class == CourseMessage %>
       <% if ma.course_message_type == "News" %>
           <li><a href="<%=news_path(ma.course_message.id) %>" target="_blank" title="<%=ma.course_message.author.show_name %> 发布了通知：<%= ma.course_message.title%>"><span class="shadowbox_news_user"><%=ma.course_message.author.show_name %> </span>发布了通知：<%= ma.course_message.title%></a></li>
@@ -50,18 +50,18 @@
       <% elsif ma.course_message_type == "Poll" %>
           <li><a href="<%= poll_path(ma.course_message.id) %>" target="_blank" title="<%=ma.course_message.user.show_name %> 发布了问卷：<%= ma.course_message.polls_name.nil? ? "未命名问卷" : ma.course_message.polls_name %>"><span class="shadowbox_news_user"><%=ma.course_message.user.show_name %> </span>发布了问卷：<%= ma.course_message.polls_name.nil? ? "未命名问卷" : ma.course_message.polls_name%></a></li>
       <% elsif ma.course_message_type == "Message" %>
-          <% content = ma.course_message.parent_id.nil? ? ma.course_message.subject : ma.course_message.content.html_safe %>
+          <% content = ma.course_message.parent_id.nil? ? ma.course_message.subject : message_content(ma.course_message.content) %>
           <% href = board_message_path(ma.course_message.board_id, ma.course_message.parent_id ? ma.course_message.parent_id : ma.course_message.id) %>
           <li><a href="<%= href %>" target="_blank" title="<%=ma.course_message.author.show_name %> <%= ma.course_message.parent_id.nil? ? "发布了班级帖子：" : "评论了班级帖子：" %><%= content%>"><span class="shadowbox_news_user"><%=ma.course_message.author.show_name %> </span><%= ma.course_message.parent_id.nil? ? "发布了班级帖子：" : "评论了班级帖子：" %><%= content%></a></li>
       <% elsif ma.course_message_type == "StudentWorksScore" %>
-          <li><a href="<%= student_work_index_path(:homework => ma.course_message.student_work.homework_common_id) %>" target="_blank" title="<%=ma.course_message.reviewer_role == 3 ? '匿名用户' : ma.course_message.user.show_name+"老师" %> <%= ma.status == 0 ? "评阅了您的作品：" : "重新评阅了您的作品:" %><%= ma.content.html_safe if !ma.content.nil?%>"><span class="shadowbox_news_user"><%=ma.course_message.reviewer_role == 3 ? '匿名用户' : ma.course_message.user.show_name+"老师" %> </span><%= ma.status == 0 ? "评阅了您的作品：" : "重新评阅了您的作品:" %><%= ma.content.html_safe if !ma.content.nil?%></a></li>
+          <li><a href="<%= student_work_index_path(:homework => ma.course_message.student_work.homework_common_id) %>" target="_blank" title="<%=ma.course_message.reviewer_role == 3 ? '匿名用户' : ma.course_message.user.show_name+"老师" %> <%= ma.status == 0 ? "评阅了您的作品：" : "重新评阅了您的作品:" %><%= message_content(ma.content) if !ma.content.nil?%>"><span class="shadowbox_news_user"><%=ma.course_message.reviewer_role == 3 ? '匿名用户' : ma.course_message.user.show_name+"老师" %> </span><%= ma.status == 0 ? "评阅了您的作品：" : "重新评阅了您的作品:" %><%=  message_content(ma.content) if !ma.content.nil?%></a></li>
       <% elsif ma.course_message_type == "JournalsForMessage" %>
           <% if ma.course_message.jour_type == 'Course' %>
-              <li><a href="<%= course_feedback_path(ma.course_id) %>" target="_blank" title="<%=ma.course_message.user.show_name %> 在班级中留言了：<%= ma.course_message.notes.html_safe%>"><span class="shadowbox_news_user"><%=ma.course_message.user.show_name %> </span>在班级中留言了：<%= ma.course_message.notes.html_safe%></a></li>
+              <li><a href="<%= course_feedback_path(ma.course_id) %>" target="_blank" title="<%=ma.course_message.user.show_name %> 在班级中留言了：<%= message_content(ma.course_message.notes)%>"><span class="shadowbox_news_user"><%=ma.course_message.user.show_name %> </span>在班级中留言了：<%= message_content(ma.course_message.notes)%></a></li>
           <% elsif ma.course_message.jour_type == 'HomeworkCommon' %>
-              <li><a href="<%= homework_common_index_url_in_org(ma.course_id) %>" target="_blank" title="<%=ma.course_message.user.show_name %> <%=ma.course_message.m_parent_id.nil? ? '回复了您的作业：' : '在作业中回复了您：' %><%= ma.course_message.notes.html_safe%>"><span class="shadowbox_news_user"><%=ma.course_message.user.show_name %> </span><%=ma.course_message.m_parent_id.nil? ? '回复了您的作业：' : '在作业中回复了您：' %><%= ma.course_message.notes.html_safe%></a></li>
+              <li><a href="<%= homework_common_index_url_in_org(ma.course_id) %>" target="_blank" title="<%=ma.course_message.user.show_name %> <%=ma.course_message.m_parent_id.nil? ? '回复了您的作业：' : '在作业中回复了您：' %><%= message_content(ma.course_message.notes)%>"><span class="shadowbox_news_user"><%=ma.course_message.user.show_name %> </span><%=ma.course_message.m_parent_id.nil? ? '回复了您的作业：' : '在作业中回复了您：' %><%= message_content(ma.course_message.notes)%></a></li>
           <% else %>
-              <li><a href="<%= student_work_index_path(:homework => ma.course_message.jour.student_work.homework_common_id,:show_work_id => ma.course_message.jour.student_work_id) %>" target="_blank" title="<%=ma.course_message.user.show_name %><%=ma.course_message.user.allowed_to?(:as_teacher, ma.course) ? '老师' : '同学' %> 回复了作品评论：<%= ma.course_message.notes%>"><span class="shadowbox_news_user"><%=ma.course_message.user.show_name %><%=ma.course_message.user.allowed_to?(:as_teacher, ma.course) ? '老师' : '同学' %> </span>回复了作品评论：<%= ma.course_message.notes%></a></li>
+              <li><a href="<%= student_work_index_path(:homework => ma.course_message.jour.student_work.homework_common_id,:show_work_id => ma.course_message.jour.student_work_id) %>" target="_blank" title="<%=ma.course_message.user.show_name %><%=ma.course_message.user.allowed_to?(:as_teacher, ma.course) ? '老师' : '同学' %> 回复了作品评论：<%= message_content(ma.course_message.notes)%>"><span class="shadowbox_news_user"><%=ma.course_message.user.show_name %><%=ma.course_message.user.allowed_to?(:as_teacher, ma.course) ? '老师' : '同学' %> </span>回复了作品评论：<%= message_content(ma.course_message.notes)%></a></li>
           <% end %>
       <% elsif ma.course_message_type == "StudentWork" && !ma.course_message.homework_common.nil? && !User.current.allowed_to?(:as_teacher, ma.course_message.homework_common.course) %>
           <li><a href="<%=student_work_index_path(:homework => ma.course_message.homework_common_id) %>" target="_blank" title="<%=ma.course_message.homework_common.user.show_name %>老师 发布的作业：<%=ma.course_message.homework_common.name %>,由于迟交作业，您及您的作品都不能参与该作业的匿评"><span class="shadowbox_news_user"><%=ma.course_message.homework_common.user.show_name %>老师 </span>发布的作业：<%=ma.course_message.homework_common.name %>,由于迟交作业，您及您的作品都不能参与该作业的匿评</a></li>
@@ -112,11 +112,11 @@
       <% end %>
     <% elsif ma.class == MemoMessage %>
       <% if ma.memo_type == "Memo" %>
-          <li><a href="<%=forum_memo_path(ma.memo.forum_id, ma.memo.parent_id ? ma.memo.parent_id: ma.memo.id) %>" target="_blank" title="<%=ma.memo.author.show_name %> <%= ma.memo.parent_id.nil? ? "在贴吧发布帖子：" : "回复了贴吧帖子：" %><%= ma.memo.parent_id.nil? ? ma.memo.subject : ma.memo.content.html_safe%>"><span class="shadowbox_news_user"><%=ma.memo.author.show_name %> </span><%= ma.memo.parent_id.nil? ? "在贴吧发布帖子：" : "回复了贴吧帖子：" %><%= ma.memo.parent_id.nil? ? ma.memo.subject : ma.memo.content.html_safe%></a></li>
+          <li><a href="<%=forum_memo_path(ma.memo.forum_id, ma.memo.parent_id ? ma.memo.parent_id: ma.memo.id) %>" target="_blank" title="<%=ma.memo.author.show_name %> <%= ma.memo.parent_id.nil? ? "在贴吧发布帖子：" : "回复了贴吧帖子：" %><%= ma.memo.parent_id.nil? ? ma.memo.subject : message_content(ma.memo.content)%>"><span class="shadowbox_news_user"><%=ma.memo.author.show_name %> </span><%= ma.memo.parent_id.nil? ? "在贴吧发布帖子：" : "回复了贴吧帖子：" %><%= ma.memo.parent_id.nil? ? ma.memo.subject : message_content(ma.memo.content)%></a></li>
       <% end %>
     <% elsif ma.class == UserFeedbackMessage %>
       <% if ma.journals_for_message_type == "JournalsForMessage" %>
-          <li><a href="<%=feedback_path(ma.journals_for_message.jour_id) %>" target="_blank" title="<%=ma.journals_for_message.user.show_name %> <%= ma.journals_for_message.reply_id == 0 ? "给你留言了：" : "回复了你的留言：" %><%= ma.journals_for_message.notes.gsub("<p>","").gsub("</p>","").gsub("<br />","").html_safe%>"><span class="shadowbox_news_user"><%=ma.journals_for_message.user.show_name %> </span><%= ma.journals_for_message.reply_id == 0 ? "给你留言了：" : "回复了你的留言：" %><%= ma.journals_for_message.notes.gsub("<p>","").gsub("</p>","").gsub("<br />","").html_safe%></a></li>
+          <li><a href="<%=feedback_path(ma.journals_for_message.jour_id) %>" target="_blank" title="<%=ma.journals_for_message.user.show_name %> <%= ma.journals_for_message.reply_id == 0 || ma.journals_for_message.reply_id.nil? ? "给你留言了：" : "回复了你的留言：" %><%= message_content(ma.journals_for_message.notes)%>"><span class="shadowbox_news_user"><%=ma.journals_for_message.user.show_name %> </span><%= ma.journals_for_message.reply_id == 0 || ma.journals_for_message.reply_id.nil? ? "给你留言了：" : "回复了你的留言：" %><%= message_content(ma.journals_for_message.notes)%></a></li>
       <% end %>
     <% elsif ma.class == OrgMessage %>
       <% if ma.message_type == 'ApplySubdomain' %>
diff --git a/app/views/users/_join_course_course_message.html.erb b/app/views/users/_join_course_course_message.html.erb
index 01ebb5cf9..d0718c11e 100644
--- a/app/views/users/_join_course_course_message.html.erb
+++ b/app/views/users/_join_course_course_message.html.erb
@@ -18,7 +18,7 @@
   <p>真实姓名：<%= User.find(ma.course_message_id).realname %></p>
   <p>申请课程：<%= Course.find(ma.course_id).name%></p>
   <div class="fl">课程描述：</div>
-  <div class="ml60"><%= Course.find(ma.course_id).description.html_safe %></div>
+  <div class="ml60"><%= Course.find(ma.course_id).description.html_safe if Course.find(ma.course_id).description %></div>
   <p>申请职位：<%= ma.content == '9'  ? "教师" : "教辅"%></p>
 </div>
 <li class="<%=(ma.status == 0 || ma.status.nil?) ? 'homepageHomeworkContentWarn2' : 'homepageHomeworkContentWarn' %> fl">
diff --git a/app/views/users/_user_message_course.html.erb b/app/views/users/_user_message_course.html.erb
index f48ce7010..065cb0b27 100644
--- a/app/views/users/_user_message_course.html.erb
+++ b/app/views/users/_user_message_course.html.erb
@@ -309,7 +309,7 @@
               </div>
           <% else %>
               <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
-                <%= link_to ma.course_message.content.html_safe, board_message_path(ma.course_message.board_id, ma.course_message.parent_id),
+                <%= link_to message_content(ma.course_message.content), board_message_path(ma.course_message.board_id, ma.course_message.parent_id),
                             :class => "#{ma.viewed==0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
                             <!--:onmouseover =>"message_titile_show($(this),event)",-->
                             <!--:onmouseout => "message_titile_hide($(this))" %>-->
@@ -348,7 +348,7 @@
           </li>
           <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
             <% unless ma.content.nil? %>
-                <%= link_to ma.content.html_safe, student_work_index_path(:homework => ma.course_message.student_work.homework_common_id),
+                <%= link_to message_content(ma.content), student_work_index_path(:homework => ma.course_message.student_work.homework_common_id),
                             :class =>"#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
                             <!--:onmouseover =>"message_titile_show($(this),event)",-->
                             <!--:onmouseout => "message_titile_hide($(this))" %>-->
@@ -387,7 +387,7 @@
                     <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl" : "homepageNewsType fl" %>">在班级中留言了：</span>
                   </li>
                   <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
-                    <%= link_to ma.course_message.notes.html_safe, course_feedback_path(:id => ma.course_id),
+                    <%= link_to message_content(ma.course_message.notes), course_feedback_path(:id => ma.course_id),
                                 :class => "#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
                                 <!--:onmouseover => "message_titile_show($(this),event)",-->
                                 <!--:onmouseout => "message_titile_hide($(this))" %>-->
@@ -414,7 +414,7 @@
                     </span>
                   </li>
                   <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
-                    <%= link_to ma.course_message.notes.html_safe, homework_common_index_url_in_org( ma.course_id),
+                    <%= link_to message_content(ma.course_message.notes), homework_common_index_url_in_org( ma.course_id),
                                 :class => "#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
                     <!--:onmouseover => "message_titile_show($(this),event)",-->
                     <!--:onmouseout => "message_titile_hide($(this))" %>-->
@@ -437,7 +437,7 @@
                 <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl" : "homepageNewsType fl" %>">回复了作品评论：</span>
               </li>
               <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
-                <%= link_to ma.course_message.notes, student_work_index_path(:homework => ma.course_message.jour.student_work.homework_common_id,:show_work_id => ma.course_message.jour.student_work_id), :class => "#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
+                <%= link_to message_content(ma.course_message.notes), student_work_index_path(:homework => ma.course_message.jour.student_work.homework_common_id,:show_work_id => ma.course_message.jour.student_work_id), :class => "#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
                             <!--:onmouseover => "message_titile_show($(this),event)",-->
                             <!--:onmouseout => "message_titile_hide($(this))" %>-->
                 </a>
diff --git a/app/views/users/_user_message_forum.html.erb b/app/views/users/_user_message_forum.html.erb
index e0111276a..4757aa401 100644
--- a/app/views/users/_user_message_forum.html.erb
+++ b/app/views/users/_user_message_forum.html.erb
@@ -17,7 +17,7 @@
               </li>
           <% else %>
               <li class="homepageNewsContent fl"><a href="javascript:void(0);" class="newsGrey">
-                <%= link_to ma.memo.content.html_safe, forum_memo_path(ma.memo.forum_id, ma.memo.parent_id ? ma.memo.parent_id: ma.memo.id), :class =>"#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
+                <%= link_to message_content(ma.memo.content), forum_memo_path(ma.memo.forum_id, ma.memo.parent_id ? ma.memo.parent_id: ma.memo.id), :class =>"#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank' %>
                             <!--:onmouseover =>"message_titile_show($(this),event)",-->
                             <!--:onmouseout => "message_titile_hide($(this))" %>-->
                 </a>
diff --git a/app/views/users/_user_message_system.html.erb b/app/views/users/_user_message_system.html.erb
index a7e48f456..13967dce1 100644
--- a/app/views/users/_user_message_system.html.erb
+++ b/app/views/users/_user_message_system.html.erb
@@ -10,7 +10,7 @@
           <span style="color: red;float: left">【系统消息】</span>
           <li class="homepageSystenMessageContent fl">
 
-            <%= link_to ma.subject.blank? ? (ma.content.nil? ? ma.description.html_safe : ma.content.html_safe) : ma.subject, user_system_messages_path(User.current),
+            <%= link_to ma.subject.blank? ? (ma.content.nil? ?  message_content(ma.description) : message_content(ma.content)) : ma.subject, user_system_messages_path(User.current),
                         :id => "content_link_#{ma.id}", :target => '_blank' %>
                         <!--:onmouseover =>"message_titile_show($(this),event);",-->
                         <!--:onmouseout => "message_titile_hide($(this));"-->
diff --git a/app/views/users/_user_message_userfeedaback.html.erb b/app/views/users/_user_message_userfeedaback.html.erb
index 3af623813..1c33d9de4 100644
--- a/app/views/users/_user_message_userfeedaback.html.erb
+++ b/app/views/users/_user_message_userfeedaback.html.erb
@@ -9,7 +9,7 @@
             <span class="<%= ma.viewed == 0 ? "homepageNewsTypeNotRead fl":"homepageNewsType fl" %>"><%= ma.journals_for_message.reply_id == 0 ? "给你留言了：" : "回复了你的留言：" %></span>
           </li>
           <li class="homepageNewsContent fl">
-            <%= link_to ma.journals_for_message.notes.gsub("<p>","").gsub("</p>","").gsub("<br />","").html_safe, feedback_path(ma.journals_for_message.jour_id),  :class =>"#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank'%>
+            <%= link_to message_content(ma.journals_for_message.notes), feedback_path(ma.journals_for_message.jour_id),  :class =>"#{ma.viewed == 0 ? "newsBlack" : "newsGrey"}", :target => '_blank'%>
                         <!--:onmouseover =>"message_titile_show($(this),event)",-->
                         <!--:onmouseout => "message_titile_hide($(this))" %>-->
           </li>