diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 8c5d4acea..e35d0cebe 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -2897,183 +2897,75 @@ int main(int argc, char** argv){
 end
 
 def user_url_in_org(user_id)
-  if Rails.env.development?
-    return "http://localhost:3000/users/" + user_id.to_s
-  elsif Rails.env.test?
-    return "https://www.test.forge.trustie.net/users/" + user_id.to_s
-  else
-    return "https://www.trustie.net/users/" + user_id.to_s
-  end
+  Setting.host_name + "/users/" + user_id.to_s
 end
 
 def project_issues_url_in_org(project_id)
-  if Rails.env.development?
-    return "http://localhost:3000/projects/" + project_id.to_s + "/issues"
-  elsif Rails.env.test?
-    return "https://www.test.forge.trustie.net/projects/" + project_id.to_s + "/issues"
-  else
-    return "https://www.trustie.net/projects/" + project_id.to_s + "/issues"
-  end
+  Setting.host_name + "/projects/" + project_id.to_s + "/issues"
 end
 
 def issue_url_in_org(id)
-  if Rails.env.development?
-    return "http://localhost:3000/issues/" + id.to_s
-  elsif Rails.env.test?
-    return "https://www.test.forge.trustie.net/issues/" + id.to_s
-  else
-    return "https://www.trustie.net/issues/" + id.to_s
-  end
+  Setting.host_name + "/issues/" + id.to_s
 end
 
 def project_boards_url_in_org(id)
-  if Rails.env.development?
-    return "http://localhost:3000/projects/" + id.to_s + "/boards"
-  elsif Rails.env.test?
-    return "https://www.test.forge.trustie.net/projects/" + id.to_s + "/boards"
-  else
-    return "https://www.trustie.net/projects/" + id.to_s + "/boards"
-  end
+  Setting.host_name + "/projects/" + id.to_s + "/boards"
 end
 
 def board_message_url_in_org(board_id, message_id)
-  if Rails.env.development?
-    return "http://localhost:3000/boards/" + board_id.to_s + "/topics/" + message_id.to_s
-  elsif Rails.env.test?
-    return "https://www.test.forge.trustie.net/boards/" + board_id.to_s + "/topics/" + message_id.to_s
-  else
-    return "https://www.trustie.net/boards/" + board_id.to_s + "/topics/" + message_id.to_s
-  end
+  Setting.host_name + "/boards/" + board_id.to_s + "/topics/" + message_id.to_s
 end
 
 def project_url_in_org(id)
-  if Rails.env.development?
-    return "http://localhost:3000/projects/" + id.to_s
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/projects/" + id.to_s
-  else
-    return "https://www.trustie.net/projects/" + id.to_s
-  end
+  Setting.host_name + "/projects/" + id.to_s
 end
 
 def homework_common_index_url_in_org(course_id)
-  if Rails.env.development?
-    return "http://localhost:3000/homework_common?course=" + course_id.to_s
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/homework_common?course=" + course_id.to_s
-  else
-    return "https://www.trustie.net/homework_common?course=" + course_id.to_s
-  end
+  Setting.host_name + "/homework_common?course=" + course_id.to_s
 end
 
 def student_work_index_url_in_org(homework_id)
-  if Rails.env.development?
-    return "http://localhost:3000/student_work?homework=" + homework_id.to_s
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/student_work?homework=" + course_id.to_s
-  else
-    return "https://www.trustie.net/student_work?homework=" + course_id.to_s
-  end
+  Setting.host_name + "/student_work?homework=" + homework_id.to_s
 end
 
 def course_url_in_org(course_id)
-  if Rails.env.development?
-    return "http://localhost:3000/courses/" + course_id.to_s
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/courses/" + course_id.to_s
-  else
-    return "https://www.trustie.net/courses/" + course_id.to_s
-  end
+  Setting.host_name + "/courses/" + course_id.to_s
 end
 
 def user_watchlist_url_in_org(id)
-  if Rails.env.development?
-    return "http://localhost:3000/users/" + id.to_s + "/user_watchlist"
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/users/" + id.to_s + "/user_watchlist"
-  else
-    return "https://www.trustie.net/users/" + id.to_s + "/user_watchlist"
-  end
+  Setting.host_name + "/users/" + id.to_s + "/user_watchlist"
 end
 
 def user_fanslist_url_in_org(id)
-  if Rails.env.development?
-    return "http://localhost:3000/users/" + id.to_s + "/user_fanslist"
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/users/" + id.to_s + "/user_fanslist"
-  else
-    return "https://www.trustie.net/users/" + id.to_s + "/user_fanslist"
-  end
+  Setting.host_name + "/users/" + id.to_s + "/user_fanslist"
 end
 
 def user_blogs_url_in_org(user_id)
-  if Rails.env.development?
-    return "http://localhost:3000/users/" + user_id.to_s + "/blogs"
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/users/" + user_id.to_s + "/blogs"
-  else
-    return "https://www.trustie.net/users/" + user_id.to_s + "/blogs"
-  end
+  Setting.host_name + "/users/" + user_id.to_s + "/blogs"
 end
 
 def feedback_url_in_org(user_id)
-  if Rails.env.development?
-    return "http://localhost:3000/users/" + user_id.to_s + "/user_newfeedback"
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/users/" + user_id.to_s + "/user_newfeedback"
-  else
-    return "https://www.trustie.net/users/" + user_id.to_s + "/user_newfeedback"
-  end
+  Setting.host_name + "/users/" + user_id.to_s + "/user_newfeedback"
 end
 
 def user_activities_url_in_org(user_id)
-  if Rails.env.development?
-    return "http://localhost:3000/users/" + user_id.to_s + "/user_activities"
-  elsif Rails.env.test?
-    return "http://test.forge.trustie.net/users/" + user_id.to_s + "/user_activities"
-  else
-    return "http://www.trustie.net/users/" + user_id.to_s + "/user_activities"
-  end
+  Setting.host_name + "/users/" + user_id.to_s + "/user_activities"
 end
 
 def course_news_index_url_in_org(course_id)
-  if Rails.env.development?
-    return "http://localhost:3000/courses/" + course_id.to_s + "/news"
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/courses/" + course_id.to_s + "/news"
-  else
-    return "https://www.trustie.net/courses/" + course_id.to_s + "/news"
-  end
+  Setting.host_name + "/courses/" + course_id.to_s + "/news"
 end
 
 def news_url_in_org(news_id)
-  if Rails.env.development?
-    return "http://localhost:3000/news/" + news_id.to_s
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/news/" + news_id.to_s
-  else
-    return "https://www.trustie.net/news/" + news_id.to_s
-  end
+  Setting.host_name + "/news/" + news_id.to_s
 end
 
 def course_boards_url_in_org(course_id)
-  if Rails.env.development?
-    return "http://localhost:3000/courses/" + course_id.to_s + "/boards"
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/courses/" + course_id.to_s + "/boards"
-  else
-    return "https://www.trustie.net/courses/" + course_id.to_s + "/boards"
-  end
+  Setting.host_name + "/courses/" + course_id.to_s + "/boards"
 end
 
 def logout_url_without_domain
-  if Rails.env.development?
-    return "http://localhost:3000/logout"
-  elsif Rails.env.test?
-    return "https://test.forge.trustie.net/logout"
-  else
-    return "https://www.trustie.net/logout"
-  end
+  Setting.host_name + "/logout"
 end
 
 #判断是否为默认的组织栏目
diff --git a/app/views/organizations/_org_course_homework.html.erb b/app/views/organizations/_org_course_homework.html.erb
index 6900cbd34..2bc00d6b1 100644
--- a/app/views/organizations/_org_course_homework.html.erb
+++ b/app/views/organizations/_org_course_homework.html.erb
@@ -194,7 +194,7 @@
 
                   <div class="mr10 mb10 mt10 fl w100 fontGrey2" style="text-align: center;">
                     <% if project.is_public || User.current.member_of?(project) || User.current.admin? %>
-                        <%= link_to image_tag(url_to_avatar(project),:width=>"40",:height => "40",:class => "borderRadius"),project_path(project.id,:host=>Setting.host_name),:id=>"project_img_"+project.id.to_s+"_"+activity.id.to_s,:alt =>"项目头像" %>
+                        <%= link_to image_tag(url_to_avatar(project),:width=>"40",:height => "40",:class => "borderRadius"),project_url_in_org(project.id),:id=>"project_img_"+project.id.to_s+"_"+activity.id.to_s,:alt =>"项目头像" %>
                     <% else %>
                         <%= image_tag(url_to_avatar(project),:width=>"40",:height => "40",:class => "borderRadius",:id=>"project_img_"+project.id.to_s+"_"+activity.id.to_s,:alt =>"项目头像") %>
                     <% end %>
@@ -227,17 +227,17 @@
               <li class="homepagePostSettingIcon">
                 <ul class="homepagePostSettiongText">
                   <li>
-                    <%= link_to l(:button_edit),edit_homework_common_path(activity,:is_in_course => -1,:course_activity=>course_activity), :class => "postOptionLink"%>
+                    <%= link_to l(:button_edit),Setting.host_name + "/homework_common/" + activity.id.to_s + "/edit?", :class => "postOptionLink"%>
                   </li>
                   <li>
-                    <%= link_to(l(:label_bid_respond_delete), homework_common_path(activity,:is_in_course => -1,:course_activity=>course_activity),:method => 'delete', :confirm => l(:text_are_you_sure), :class => "postOptionLink")  %>
+                    <%= link_to(l(:label_bid_respond_delete), Setting.host_name + "/homework_common/" + activity.id.to_s + "?is_in_course=-1&course_activity=" + course_activity.to_s,:method => 'delete', :confirm => l(:text_are_you_sure), :class => "postOptionLink")  %>
                   </li>
                   <li>
-                    <%= link_to("评分设置", score_rule_set_homework_common_path(activity,:user_activity_id => user_activity_id, :is_in_course => 0),:class => "postOptionLink", :remote => true) %>
+                    <%= link_to("评分设置", Setting.host_name + "/homework_common/" + activity.id.to_s + "/score_rule_set?is_in_course=0&user_activity_id=" + user_activity_id.to_s,:class => "postOptionLink", :remote => true) %>
                   </li>
                   <% if activity.anonymous_comment == 0 %>
                       <li>
-                        <%= link_to("匿评设置", start_evaluation_set_homework_common_path(activity),:class => "postOptionLink", :remote => true) if activity.homework_detail_manual.comment_status == 1%>
+                        <%= link_to("匿评设置", Setting.host_name + "/homework_common/" + activity.id.to_s + "/start_evaluation_set",:class => "postOptionLink", :remote => true) if activity.homework_detail_manual.comment_status == 1%>
                       </li>
                       <li>
                         <%= homework_anonymous_comment activity,-1,user_activity_id,course_activity %>
@@ -245,17 +245,17 @@
                   <% end %>
                   <% if activity.anonymous_comment == 0 && (comment_status == 0 || comment_status == 1)%>
                       <li>
-                        <%= link_to("禁用匿评", alert_forbidden_anonymous_comment_homework_common_path(activity,:user_activity_id => user_activity_id,:course_activity=>course_activity),:class => "postOptionLink",
+                        <%= link_to("禁用匿评", Setting.host_name + "/homework_common/" + activity.id.to_s + "/alert_forbidden_anonymous_comment?user_activity_id=" + user_activity_id.to_s + "&course_activity=" + course_activity.to_s,:class => "postOptionLink",
                                     :title => "匿评是同学之间的双盲互评过程：每个同学将评阅系统分配给他/她的若干个作品",:remote => true)%>
                       </li>
                   <% end %>
                   <% if (activity.anonymous_comment == 1 && activity.is_open == 0) || (activity.anonymous_comment == 0 && comment_status == 3 && activity.is_open == 0) %>
                       <li>
-                        <%= link_to("公开作品", alert_open_student_works_homework_common_path(activity,:user_activity_id => user_activity_id, :is_in_course => -1,:course_activity=>course_activity),:class => "postOptionLink", :remote => true)%>
+                        <%= link_to("公开作品", Setting.host_name + "/homework_common/" + activity.id.to_s + "/alert_open_student_works?is_in_course=-1&user_activity_id=" + user_activity_id.to_s + "&course_activity=" + course_activity.to_s,:class => "postOptionLink", :remote => true)%>
                       </li>
                   <% elsif activity.is_open == 1 %>
                       <li>
-                        <%= link_to("取消公开", alert_open_student_works_homework_common_path(activity,:user_activity_id => user_activity_id, :is_in_course => -1,:course_activity=>course_activity),:class => "postOptionLink", :remote => true)%>
+                        <%= link_to("取消公开", Setting.host_name + "/homework_common/" + activity.id.to_s + "/alert_open_student_works?is_in_course=-1&user_activity_id=" + user_activity_id.to_s + "&course_activity=" + course_activity.to_s,:class => "postOptionLink", :remote => true)%>
                       </li>
                   <% end %>
                 </ul>
diff --git a/app/views/organizations/_org_course_poll.html.erb b/app/views/organizations/_org_course_poll.html.erb
index c124e829f..fff50786e 100644
--- a/app/views/organizations/_org_course_poll.html.erb
+++ b/app/views/organizations/_org_course_poll.html.erb
@@ -16,7 +16,7 @@
                 <%= link_to activity.try(:user).try(:realname), user_url_in_org(activity.user_id), :class => "newsBlue mr15" %>
             <% end %>
             TO
-            <%= link_to Course.find(activity.polls_group_id).name.to_s+" | 问卷", poll_index_path(:polls_type => "Course", :polls_group_id => activity.polls_group_id), :class => "newsBlue ml15" %>
+            <%= link_to Course.find(activity.polls_group_id).name.to_s+" | 问卷", Setting.host_name + "/poll?polls_type=Course&polls_group_id=" + activity.polls_group_id.to_s, :class => "newsBlue ml15" %>
             <!--<a href="javascript:void(0);" class="newsBlue ml15">分布式计算环境(课程名称)</a>-->
           </div>
           <div class="homepagePostTitle break_word" >
diff --git a/app/views/users/_watch_btn_for_picture.html.erb b/app/views/users/_watch_btn_for_picture.html.erb
index e604be318..be8673468 100644
--- a/app/views/users/_watch_btn_for_picture.html.erb
+++ b/app/views/users/_watch_btn_for_picture.html.erb
@@ -2,8 +2,8 @@
     <%= link_to("编辑资料", my_account_path, :class => "fl UsersEditBtn") %>
 <% else %>
     <%if(user.watched_by?(User.current))%>
-        <%= link_to "取消关注",watch_path(:object_type=> 'user',:object_id=>user.id,:target_id=>user.id),:class => "userFollow mr27 fl", :method => "delete",:remote => "true", :title => "取消关注"%>
+        <%= link_to "取消关注",Setting.host_name + "/watch?object_type=user&object_id="+user.id.to_s + "&target_id="+user.id.to_s,:class => "userFollow mr27 fl", :method => "delete",:remote => "true", :title => "取消关注"%>
     <% else %>
-        <%= link_to "添加关注",watch_path(:object_type=> 'user',:object_id=>user.id,:target_id=>user.id),:class => "userFollow mr27 fl", :method => "post",:remote => "true", :title => "添加关注"%>
+        <%= link_to "添加关注",Setting.host_name + "/watch?object_type=user&object_id="+user.id.to_s + "&target_id="+user.id.to_s,:class => "userFollow mr27 fl", :method => "post",:remote => "true", :title => "添加关注"%>
     <% end %>
 <% end %>
\ No newline at end of file