| 版，包含了在从客户端到服务器的请求上要求 UsernameToken 的策略信息。与策略本身一样 ，<wsdl:binding> 中的策略引用以粗体显示。
清单 1. 纯文本 UsernameToken WSDL
<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions targetNamespace="http://ws.sosnoski.com/library/wsdl"
xmlns:wns="http://ws.sosnoski.com/library/wsdl"
xmlns:tns="http://ws.sosnoski.com/library/types"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/">
<wsdl:types>
...
</wsdl:types>
<wsdl:message name="getBookRequest">
<wsdl:part element="wns:getBook" name="parameters"/>
</wsdl:message>
...
<wsdl:portType name="Library">
<wsdl:operation name="getBook">
<wsdl:input message="wns:getBookRequest" name="getBookRequest"/>
<wsdl:output message="wns:getBookResponse" name="getBookResponse"/>
</wsdl:operation>
...
</wsdl:portType>
<wsdl:binding name="LibrarySoapBinding" type="wns:Library">
<wsp:PolicyReference xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy"
URI="#UsernameToken"/>
<wsdlsoap:binding style="document"
transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="getBook">
<wsdlsoap:operation soapAction="urn:getBook"/>
<wsdl:input name="getBookRequest">
<wsdlsoap:body use="literal"/>
</wsdl:input>
<wsdl:output name="getBookResponse">
<wsdlsoap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
...
</wsdl:binding>
<wsdl:service name="MetroLibrary">
<wsdl:port binding="wns:LibrarySoapBinding" name="library">
<wsdlsoap:address location="http://localhost:8080/metro-library-username"/>
</wsdl:port>
</wsdl:service>
<!-- Policy for Username Token with plaintext password, sent from client to
server only -->
<wsp:Policy wsu:Id="UsernameToken" xmlns:wsu=
"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"
xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy">
<wsp:ExactlyOne>
<wsp:All>
<sp:SupportingTokens
xmlns:sp="http://docs.oasis-open.org/ws-sx/ws-securitypolicy/200702">
<wsp:Policy>
<sp:UsernameToken sp:IncludeToken=".../IncludeToken/AlwaysToRecipient"/>
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