红帽全球峰会第 26 章 启动点 WSDL 合同
26.1. WSDL 合同示例
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例 26.1 “helloworld WSDL 合同” 显示 HelloWorld WSDL 合同。该合同在 wsdl:portType 元素中定义单一界面 Greeter。该合同还定义了在 wsdl:port 元素中实施该服务的端点。
例 26.1. helloworld WSDL 合同
<?xml version="1.0" encoding=";UTF-8"?>
<wsdl:definitions name="HelloWorld"
targetNamespace="http://apache.org/hello_world_soap_http"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:tns="http://apache.org/hello_world_soap_http"
xmlns:x1="http://apache.org/hello_world_soap_http/types"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wsdl:types>
<schema targetNamespace="http://apache.org/hello_world_soap_http/types"
xmlns="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified">
<element name="sayHiResponse">
<complexType>
<sequence>
<element name="responseType" type="string"/>
</sequence>
</complexType>
</element>
<element name="greetMe">
<complexType>
<sequence>
<element name="requestType" type="string"/>
</sequence>
</complexType>
</element>
<element name="greetMeResponse">
<complexType>
<sequence>
<element name="responseType" type="string"/>
</sequence>
</complexType>
</element>
<element name="greetMeOneWay">
<complexType>
<sequence>
<element name="requestType" type="string"/>
</sequence>
</complexType>
</element>
<element name="pingMe">
<complexType/>
</element>
<element name="pingMeResponse">
<complexType/>
</element>
<element name="faultDetail">
<complexType>
<sequence>
<element name="minor" type="short"/>
<element name="major" type="short"/>
</sequence>
</complexType>
</element>
</schema>
</wsdl:types>
<wsdl:message name="sayHiRequest">
<wsdl:part element="x1:sayHi" name="in"/>
</wsdl:message>
<wsdl:message name="sayHiResponse">
<wsdl:part element="x1:sayHiResponse" name="out"/>
</wsdl:message>
<wsdl:message name="greetMeRequest">
<wsdl:part element="x1:greetMe" name="in"/>
</wsdl:message>
<wsdl:message name="greetMeResponse">
<wsdl:part element="x1:greetMeResponse" name="out"/>
</wsdl:message>
<wsdl:message name="greetMeOneWayRequest">
<wsdl:part element="x1:greetMeOneWay" name="in"/>
</wsdl:message>
<wsdl:message name="pingMeRequest">
<wsdl:part name="in" element="x1:pingMe"/>
</wsdl:message>
<wsdl:message name="pingMeResponse">
<wsdl:part name="out" element="x1:pingMeResponse"/>
</wsdl:message>
<wsdl:message name="pingMeFault">
<wsdl:part name="faultDetail" element="x1:faultDetail"/>
</wsdl:message>
<wsdl:portType name="Greeter">
<wsdl:operation name="sayHi">
<wsdl:input message="tns:sayHiRequest" name="sayHiRequest"/>
<wsdl:output message="tns:sayHiResponse" name="sayHiResponse"/>
</wsdl:operation>
<wsdl:operation name="greetMe">
<wsdl:input message="tns:greetMeRequest" name="greetMeRequest"/>
<wsdl:output message="tns:greetMeResponse" name="greetMeResponse"/>
</wsdl:operation>
<wsdl:operation name="greetMeOneWay">
<wsdl:input message="tns:greetMeOneWayRequest" name="greetMeOneWayRequest"/>
</wsdl:operation>
<wsdl:operation name="pingMe">
<wsdl:input name="pingMeRequest" message="tns:pingMeRequest"/>
<wsdl:output name="pingMeResponse" message="tns:pingMeResponse"/>
<wsdl:fault name="pingMeFault" message="tns:pingMeFault"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="Greeter_SOAPBinding" type="tns:Greeter">
...
</wsdl:binding>
<wsdl:service name="SOAPService">
<wsdl:port binding="tns:Greeter_SOAPBinding" name="SoapPort">
<soap:address location="http://localhost:9000/SoapContext/SoapPort"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
<?xml version="1.0" encoding=";UTF-8"?>
<wsdl:definitions name="HelloWorld"
targetNamespace="http://apache.org/hello_world_soap_http"
xmlns="http://schemas.xmlsoap.org/wsdl/"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:tns="http://apache.org/hello_world_soap_http"
xmlns:x1="http://apache.org/hello_world_soap_http/types"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<wsdl:types>
<schema targetNamespace="http://apache.org/hello_world_soap_http/types"
xmlns="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified">
<element name="sayHiResponse">
<complexType>
<sequence>
<element name="responseType" type="string"/>
</sequence>
</complexType>
</element>
<element name="greetMe">
<complexType>
<sequence>
<element name="requestType" type="string"/>
</sequence>
</complexType>
</element>
<element name="greetMeResponse">
<complexType>
<sequence>
<element name="responseType" type="string"/>
</sequence>
</complexType>
</element>
<element name="greetMeOneWay">
<complexType>
<sequence>
<element name="requestType" type="string"/>
</sequence>
</complexType>
</element>
<element name="pingMe">
<complexType/>
</element>
<element name="pingMeResponse">
<complexType/>
</element>
<element name="faultDetail">
<complexType>
<sequence>
<element name="minor" type="short"/>
<element name="major" type="short"/>
</sequence>
</complexType>
</element>
</schema>
</wsdl:types>
<wsdl:message name="sayHiRequest">
<wsdl:part element="x1:sayHi" name="in"/>
</wsdl:message>
<wsdl:message name="sayHiResponse">
<wsdl:part element="x1:sayHiResponse" name="out"/>
</wsdl:message>
<wsdl:message name="greetMeRequest">
<wsdl:part element="x1:greetMe" name="in"/>
</wsdl:message>
<wsdl:message name="greetMeResponse">
<wsdl:part element="x1:greetMeResponse" name="out"/>
</wsdl:message>
<wsdl:message name="greetMeOneWayRequest">
<wsdl:part element="x1:greetMeOneWay" name="in"/>
</wsdl:message>
<wsdl:message name="pingMeRequest">
<wsdl:part name="in" element="x1:pingMe"/>
</wsdl:message>
<wsdl:message name="pingMeResponse">
<wsdl:part name="out" element="x1:pingMeResponse"/>
</wsdl:message>
<wsdl:message name="pingMeFault">
<wsdl:part name="faultDetail" element="x1:faultDetail"/>
</wsdl:message>
<wsdl:portType name="Greeter">
<wsdl:operation name="sayHi">
<wsdl:input message="tns:sayHiRequest" name="sayHiRequest"/>
<wsdl:output message="tns:sayHiResponse" name="sayHiResponse"/>
</wsdl:operation>
<wsdl:operation name="greetMe">
<wsdl:input message="tns:greetMeRequest" name="greetMeRequest"/>
<wsdl:output message="tns:greetMeResponse" name="greetMeResponse"/>
</wsdl:operation>
<wsdl:operation name="greetMeOneWay">
<wsdl:input message="tns:greetMeOneWayRequest" name="greetMeOneWayRequest"/>
</wsdl:operation>
<wsdl:operation name="pingMe">
<wsdl:input name="pingMeRequest" message="tns:pingMeRequest"/>
<wsdl:output name="pingMeResponse" message="tns:pingMeResponse"/>
<wsdl:fault name="pingMeFault" message="tns:pingMeFault"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="Greeter_SOAPBinding" type="tns:Greeter">
...
</wsdl:binding>
<wsdl:service name="SOAPService">
<wsdl:port binding="tns:Greeter_SOAPBinding" name="SoapPort">
<soap:address location="http://localhost:9000/SoapContext/SoapPort"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>例 26.1 “helloworld WSDL 合同” 中定义的 Greeter 接口定义以下操作：
sayHi - 具有单个输出参数，xsd:string.
greetMe - 获取输入参数 xsd:string，以及输出参数，xsd:string。
greetMeOneWay - 具有 xsd:string 的单个输入参数。由于此操作没有输出参数，因此优化为单向调用（也就是说，使用者不会等待来自服务器的响应）。
pingMe - 没有输入参数，也没有输出参数，但可能会引发错误异常。
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