通常情况下,在JAX-WS2.0中是利用JAXB将传入的SOAP XML消息转换成JAVA的object,然后调用对应porttype的JAVA类的相应的方法,在完成调用后,再通过JAXB将返回参数转成SOAP XML.
JAX-WS还提供了另一种方法,让我们可以直接操作SOAP XML,通过让对应porttype的JAVA类实现 Provider<Source> 接口,当服务器端收到SOAP消息后,会调用 Source invoke(Source payload) 方法,如果需要直接对XML进行操作,不想利用JAXB来做对象和XML的转换,可以用这种机制.
例子:(用CXF发布web service)参照http://blog.csdn.net/kkdelta/archive/2009/03/12/3984312.aspx了解CXF发布的步骤.
1,JAVA 类
package com.cxfwsp.test;
import java.io.StringReader;
import javax.xml.transform.Result;
import javax.xml.transform.Source;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import javax.xml.ws.Provider;
import javax.xml.ws.Service;
import javax.xml.ws.ServiceMode;
import javax.xml.ws.WebServiceProvider;
@WebServiceProvider(serviceName = "TestWSProviderService",portName = "TestWSProviderPort",targetNamespace = "http://test.cxfwsp.com/",wsdlLocation = "wsdl/prjCXFWSP.wsdl")
@ServiceMode(Service.Mode.PAYLOAD)
public class TestWSProvider implements Provider<Source> {
??? public Source invoke(Source payload) {
??? ??? //System.out.println(payload);
??? ??? //DOMSource domsrc = (DOMSource)payload;
??? ??? try{
??? ??? ???
??? ??? ??? Transformer tFormer = TransformerFactory.newInstance().newTransformer();
??? ??? ???
??? ??? ??? Result result = new StreamResult(System.out);
??? ??????? tFormer.transform(payload,result);
??? ??? }catch(Exception e){
??? ??? ??? e.printStackTrace();
??? ??? }
??? ???
??? ??? return new StreamSource(new StringReader("<testWSResponse><return><retIntVal>12</retIntVal><retStrVAL>teststr</retStrVAL> </return></testWSResponse>"));
??? }
}
2,wsdl 文件:
<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions name="TestWSProviderService" targetNamespace="http://test.cxfwsp.com/" xmlns:tns="http://test.cxfwsp.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
? <wsdl:types>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://test.cxfwsp.com/" attributeFormDefault="unqualified" elementFormDefault="unqualified" targetNamespace="http://test.cxfwsp.com/">
??? <xs:element name="testWS" type="tns:testWS"/>
??? <xs:element name="testWSResponse" type="tns:testWSResponse"/>
??? <xs:complexType name="testWS">
??????? <xs:sequence>
??????????? <xs:element minOccurs="0" name="arg0" type="tns:reqParameter"/>
??????? </xs:sequence>
??? </xs:complexType>
??? <xs:complexType name="reqParameter">
??????? <xs:sequence>
??????????? <xs:element name="intVal" type="xs:int"/>
??????????? <xs:element minOccurs="0" name="strVAL" type="xs:string"/>
??????? </xs:sequence>
??? </xs:complexType>
??? <xs:complexType name="testWSResponse">
??????? <xs:sequence>
??????????? <xs:element minOccurs="0" name="return" type="tns:respParameter"/>
??????? </xs:sequence>
??? </xs:complexType>
??? <xs:complexType name="respParameter">
??????? <xs:sequence>
??????????? <xs:element name="retIntVal" type="xs:int"/>
??????????? <xs:element minOccurs="0" name="retStrVAL" type="xs:string"/>
??????? </xs:sequence>
??? </xs:complexType>
</xs:schema>
? </wsdl:types>
? <wsdl:message name="testWSResponse">
??? <wsdl:part name="parameters" element="tns:testWSResponse">
??? </wsdl:part>
? </wsdl:message>
? <wsdl:message name="testWS">
??? <wsdl:part name="parameters" element="tns:testWS">
??? </wsdl:part>
? </wsdl:message>
? <wsdl:portType name="TestWSProvider">
??? <wsdl:operation name="testWS">
????? <wsdl:input name="testWS" message="tns:testWS">
??? </wsdl:input>
????? <wsdl:output name="testWSResponse" message="tns:testWSResponse">
??? </wsdl:output>
??? </wsdl:operation>
? </wsdl:portType>
? <wsdl:binding name="TestWSProviderServiceSoapBinding" type="tns:TestWSProvider">
??? <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
??? <wsdl:operation name="testWS">
????? <soap:operation soapAction="" style="document"/>
????? <wsdl:input name="testWS">
??????? <soap:body use="literal"/>
????? </wsdl:input>
????? <wsdl:output name="testWSResponse">
??????? <soap:body use="literal"/>
????? </wsdl:output>
??? </wsdl:operation>
? </wsdl:binding>
? <wsdl:service name="TestWSProviderService">
??? <wsdl:port name="TestWSProviderPort" binding="tns:TestWSProviderServiceSoapBinding">
????? <soap:address location="http://localhost:8080/prjCXFWSP/services/TestWSProviderPort"/>
??? </wsdl:port>
? </wsdl:service>
</wsdl:definitions>
3 web.xml配置(集成Spring发布):
??? <context-param>
??? ??? <param-name>contextConfigLocation</param-name>
??? ??? <param-value>WEB-INF/beans.xml</param-value>
??? </context-param>
<listener>
??? ??? <listener-class>
??? ??? ??? org.springframework.web.context.ContextLoaderListener
??? ??? </listener-class>
??? </listener>
??? <servlet>
??? ??? <servlet-name>CXFServlet</servlet-name>
??? ??? <servlet-class>
??? ??? ??? org.apache.cxf.transport.servlet.CXFServlet
??? ??? </servlet-class>
??? ??? <load-on-startup>1</load-on-startup>
??? </servlet>
??? <servlet-mapping>
??? ??? <servlet-name>CXFServlet</servlet-name>
??? ??? <url-pattern>/services/*</url-pattern>
??? </servlet-mapping>
4,Spring 配置文件(beans.xml):
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" ??? xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" ??? xmlns:jaxws="http://cxf.apache.org/jaxws" ??? xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd"> ??? <import resource="classpath:META-INF/cxf/cxf.xml" /> ??? <import resource="classpath:META-INF/cxf/cxf-extension-soap.xml" /> ??? <import resource="classpath:META-INF/cxf/cxf-servlet.xml" /> ??? <bean name="testService" class="com.cxfwsp.test.TestWSProvider" /> ??? <jaxws:endpoint id="testEndpoint" implementor="#testService" ??? ??? wsdlLocation="classpath:wsdl/prjCXFWSP.wsdl" ??? ??? address="/TestWSProviderPort"> ??? ??? <jaxws:features> ??? ??? ??? <bean class="org.apache.cxf.feature.LoggingFeature" /> ??? ??? </jaxws:features> ??? </jaxws:endpoint> </beans>
