Failed to fetch URL https://dl-ssl.google.com/android/repository/addons_list-2.xml, reason: Connection to https://dl-ssl.google.com refused

Failed to fetch URL http://dl-ssl.google.com/android/repository/repository.xml, reason: 



转载的,希望有帮助到大家,也谢谢提供该解决方案的朋友。
解决国内访问Google服务器的困难:
1.启动 Android SDK Manager ;
2.打开主界面,依次选择「Tools」、「Options…」,弹出『Android SDK Manager – Settings』窗口;
3.在『Android SDK Manager – Settings』窗口中,在「HTTP Proxy Server」和「HTTP Proxy Port」输入框内填入mirrors.neusoft.edu.cn和80,并且选中「Force https://… sources to be fetched using http://…」复选框;4.设置完成后单击「Close」按钮关闭『Android SDK Manager – Settings』窗口返回到主界面;
5.依次选择「Packages」、「Reload」。