创建GeometryService
创建类似http://sampleserver2.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryServer的自己的GeometryService：
http://liushengnew:8399/arcgis/rest/services/Geometry/GeometryServer

进入manager，新建一个service,选择Geometry Service，然后一路next.一个服务器只能创建一个Geometry Service.
(
A Geometry Service already exists on your server.
You can only have one Geometry Service per server.)