There are only entity sets in service document now:
<?xml version="1.0" encoding="utf-8"?>
<service xml:base="http://jinfutanwebapi2:9001/what" xmlns="http://www.w3.org/2007/app" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:m="http://docs.oasis-open.org/odata/ns/metadata" m:context="http://jinfutanwebapi2:9001/what/$metadata">
<workspace>
<atom:title type="text">Default</atom:title>
<collection href="ConventionCustomers">
<atom:title type="text">ConventionCustomers</atom:title>
</collection>
<collection href="ConventionOrders">
<atom:title type="text">ConventionOrders</atom:title>
</collection>
</workspace>
</service>
<?xml version="1.0" encoding="utf-8"?>
<service xml:base="http://jinfutanwebapi2:9001/what" xmlns="http://www.w3.org/2007/app" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:m="http://docs.oasis-open.org/odata/ns/metadata" m:context="http://jinfutanwebapi2:9001/what/$metadata">
<workspace>
<atom:title type="text">Default</atom:title>
<collection href="ConventionCustomers">
<atom:title type="text">ConventionCustomers</atom:title>
</collection>
<collection href="ConventionOrders">
<atom:title type="text">ConventionOrders</atom:title>
</collection>
</workspace>
</service>