调用WebService时加入身份验证,以拒绝未授权的访问
http://blog.csdn.net/wanderocn/article/details/6584098
http://blog.csdn.net/abandonship/article/details/5824328
http://blog.csdn.net/wanderocn/article/details/6584098
http://blog.csdn.net/abandonship/article/details/5824328