没有设置权限但是登陆rest页面需要用户名和密码

【解决办法】：
建议按照下面连接打安全补丁http://support.esri.com/en/dow ... /1991
解决的问题：
NIM090171 - Shutting down and restarting the ArcGIS Server Service when using the IIS and Java web adaptors can cause the REST handler on the restarted node to lose all principals, specifically esriEveryone, at the root level forcing users to log in for every request.