diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index 1b186b5f2..47d343e8f 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -749,7 +749,7 @@ module CoursesHelper
     if user.logged?
       joined = course.members.includes(:user).map{|member| member.user_id}.include? user.id
       text = joined ? l(:label_course_exit_student) : l(:label_course_join_student)
-      url = joined ? course_path(course.id) : try_join_path(:object_id => course.id)
+      url = joined ? join_path(:object_id => course.id) : try_join_path(:object_id => course.id)
       method = joined ? 'delete' : 'post'
       if joined
         link = link_to(text, url, :remote => true, :method => method, :class => "pr_join_a", :id => "#{course.id}", :confirm => l(:text_are_you_sure_out))
diff --git a/app/views/courses/join.js.erb b/app/views/courses/join.js.erb
index 8102098d5..04a77f87b 100644
--- a/app/views/courses/join.js.erb
+++ b/app/views/courses/join.js.erb
@@ -6,14 +6,14 @@ $("#join_in_course_header").html("<%= escape_javascript(join_in_course_header(@c
 alert("加入成功");
 hideModal();
 $("#try_join_course_link").replaceWith("<a href='<%=url_for(:controller => 'homework_common', :action => 'index',:course=>@course.id, :host=>Setting.host_course)%>' target='_blank' class='blue_n_btn fr mt20'>提交作品</a>");
-window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
+window.location.href= "<%= Setting.protocol%>://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
 <% elsif @state == 1 %>
 alert("密码错误");
 <% elsif @state == 2 %>
 alert("课程已过期\n请联系课程管理员重启课程。(在配置课程处)");
 <% elsif @state == 3 %>
 alert("您已经加入了课程");
-window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
+window.location.href= "<%= Setting.protocol%>://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
 <% elsif @state == 4 %>
 alert("您加入的课程不存在");
 <% elsif @state == 5 %>
@@ -27,15 +27,15 @@ hidden_join_course_form();
 <% elsif @state == 8%>
 alert("您已经是该课程的教师了");
 hidden_join_course_form();
-window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
+window.location.href= "<%= Setting.protocol%>://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
 <% elsif @state == 9%>
 alert("您已经是该课程的教辅了");
 hidden_join_course_form();
-window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
+window.location.href= "<%= Setting.protocol%>://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
 <% elsif @state == 10%>
 alert("您已经是该课程的管理员了");
 hidden_join_course_form();
-window.location.href= "http://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
+window.location.href= "<%= Setting.protocol%>://"+"<%= Setting.host_name%>"+"/courses/" + "<%= @course.id%>"
 <% else %>
 alert("未知错误，请稍后再试");
 <% end %>