diff --git a/lib/ldap_login/login.rb b/lib/ldap_login/login.rb
index 4645bf5..ca975f2 100644
--- a/lib/ldap_login/login.rb
+++ b/lib/ldap_login/login.rb
@@ -1,63 +1,41 @@
 module LdapLogin::Login
-  require 'net/ldap'
-  LDAP_ADSERVER=["ad.asia.edu.tw","ad2.asia.edu.tw","ad3.asia.edu.tw"]
+  LDAP_ADSERVER="https://ap99.mdu.edu.tw/MduDB/api/Auth/token/1"
+  AppKey = "YhoRop0YmL6"
   def ldap_login_auth(user,request,session,flash,params)
     ldap_hosts = LDAP_ADSERVER.shuffle
     error = ''
     ldap_user = params[:user_name]
     ldap_pass = params[:password]
     login_flag = false
-    _session = {'ad' => []}
     url = '/'
     url_method = 'redirect_to'
-    ldap_hosts.each do |ldap_host|
-      begin
-        ldap = Net::LDAP.new
-        ldap.host = ldap_host
-        ldap.port = 389
-        ldap.auth "#{ldap_user}@asia.edu.tw", ldap_pass
-        if ldap.bind
-          if !user.nil?
-            #filter = Net::LDAP::Filter.eq( "sAMAccountName", ldap_user )
-            #treebase = "ou=Asia Univ,dc=asia,dc=edu,dc=tws"
-            #puts "==LDAP SEARCH START=="
-            #ldap.search( :base => treebase, :filter => filter, :return_result => false ) do |entry|
-            #  puts "DN: #{entry.dn}"
-            #  entry.each do |attribute, values|
-            #    puts "   #{attribute}:"
-            #    values.each do |value|
-            #      puts "      --->#{value}"
-            #    end
-            #  end
-            #end
-            puts "==LDAP SEARCH END=="
-            session[:user_id] = user.id
-            session[:login_referer] = nil
-            if params[:referer_url]
-              url = URI.parse(params[:referer_url]).path
-              url_method = 'redirect_to' 
-            else
-              url = admin_dashboards_path
-              url_method = 'redirect_to'
-            end
-            login_flag = true
-          else
-            error = I18n.t('devise.failure.ldap_pass_but_account_not_in_orbit')
-          end
-        else
-          error = '驗證失敗，您輸入的使用者名稱或密碼不正確!'
-        end
-        break
-      rescue => e
-        if !e.class==Net::LDAP::ConnectionError
-          error = '發生不可預知的錯誤'
-          puts ['ldap',error,e]
-          break
-        else
-          error = 'Could not connect to AD server.'
-        end
-      end
+    
+    uri = URI(LDAP_ADSERVER)
+    req = Net::HTTP::Post.new(uri, 'Content-Type' => 'application/json')
+    req.body = {AppKey: AppKey,username: ldap_user,password: ldap_pass}.to_json
+    res = Net::HTTP.start(uri.hostname, uri.port) do |http|
+      http.request(req)
     end
+    
+    if res.code == '200' && JSON.load(res.body)["userID"]==ldap_user
+      if !user.nil?
+        session[:user_id] = ldap_user
+        session[:login_referer] = nil
+        if params[:referer_url]
+          url = URI.parse(params[:referer_url]).path
+          url_method = 'redirect_to' 
+        else
+          url = admin_dashboards_path
+          url_method = 'redirect_to'
+        end
+        login_flag = true
+      else
+        error = I18n.t('devise.failure.ldap_pass_but_account_not_in_orbit')
+      end
+    else
+      error = '驗證失敗，您輸入的使用者名稱或密碼不正確!'
+    end
+
     if !login_flag
       flash.now.alert = error.html_safe
       url = 'new'