我正在尝试创建一个简单的 Spring Web 服务，调用该服务时会返回一个文件附件作为 SOAP 响应的一部分。 Endpoint类如下所示：
最后是终点
@PayloadRoot(namespace="http://ws.mypackage.com", localPart="downloadMessageRequest")
@ResponsePayload
public JAXBElement<DownloadResponseType> invoke(@RequestPayload DownloadMessageRequest req) throws Exception {
DownloadResponseType response = new DownloadResponseType();
DownloadResponseType.PayLoad payload = new DownloadResponseType.PayLoad();
javax.activation.DataHandler dataHandler = new javax.activation.DataHandler(new FileDataSource("c:\\temp\\maven-feather.png"));
payload.setMessagePayLoad(dataHandler);
response.setPayLoad(payload);
return objectFactory.createDownloadMessageResponse(response);
}
我希望响应将文件作为附件包含在内，类似于以下响应：
Content-Type: multipart/related; boundary=MIMEBoundary4A7AE55984E7438034;
type="application/xop+xml"; start="<[email protected]>";
start-info="text/xml; charset=utf-8"
--MIMEBoundary4A7AE55984E7438034
content-type: application/xop+xml; charset=utf-8; type="application/soap+xml;"
content-transfer-encoding: binary
content-id: <[email protected]>
<?xml version='1.0' encoding='utf-8'?>
<soapenv:Envelope xmlns:soapenv="...."....>
........
<xop:Include href="cid:[email protected]"
xmlns:xop="http://www.w3.org/2004/08/xop/include">
</xop:Include>
........
</soapenv:Envelope>
--MIMEBoundary4A7AE55984E7438034
content-type: application/octet-stream
content-transfer-encoding: binary
content-id: <[email protected]>
Binary Data.....
--MIMEBoundary4A7AE55984E7438034--
我尝试遵循 spring-ws 示例中的文档和示例代码，由于某种原因，我得到的输出始终是这样的（即，base64 数据不是附件。
HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
Accept: text/xml, text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2
SOAPAction: ""
Content-Type: text/xml;charset=utf-8
Content-Length: 4750
Date: Tue, 03 Jul 2012 17:05:21 GMT
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header/><SOAP-ENV:Body><ns2:downloadMessageResponse xmlns:ns2="http://ws.mypackage.com"><ns2:payLoad><ns2:messagePayLoad>....iVBORw0KGgoAAAANSUhEUgAAAFoAAAAeCyAAAAAElFTkSuQmCC....</ns2:messagePayLoad></ns2:payLoad></ns2:downloadMessageResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>
如您所见，有效负载不是附件。这是我配置应用程序的方式：
web.xml
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/app-config.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>webservice</servlet-name>
<servlet-class>org.springframework.ws.transport.http.MessageDispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/ws-config.xml</param-value>
</init-param>
</servlet>
ws-config.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ws="http://www.springframework.org/schema/web-services"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/web-services
http://www.springframework.org/schema/web-services/web-services-2.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="com.mypackage"/>
<ws:annotation-driven/>
<ws:dynamic-wsdl id="serviceDefinition" portTypeName="myService"
locationUri="http://localhost:8080/springWsTest/webservice">
<ws:xsd location="/WEB-INF/schemas/downloadMessageRequest.xsd"/>
</ws:dynamic-wsdl>
<bean id="marshaller" class="org.springframework.oxm.jaxb.Jaxb2Marshaller">
<property name="contextPath" value="com.mypackage.ws"/>
<property name="mtomEnabled" value="true"/>
</bean>
</beans>
下载MessageRequest.xsd 架构文件
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:m="http://ws.mypackage.com"
xmlns:xmime="http://www.w3.org/2005/05/xmlmime" elementFormDefault="qualified"
targetNamespace="http://ws.mypackage.com"
attributeFormDefault="unqualified">
<xs:element name="downloadMessageRequest">
<xs:complexType/>
</xs:element>
<xs:element name="downloadMessageResponse" type="m:downloadResponseType" />
<xs:complexType name="downloadResponseType">
<xs:sequence>
<xs:element name="requestName" type="xs:string"/>
<xs:element name="payLoad">
<xs:complexType>
<xs:sequence>
<xs:element name="messagePayLoad" type="xs:base64Binary" xmime:expectedContentTypes="application/octet-stream"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
<xs:element name="localDTMRequest">
<xs:complexType/>
</xs:element>
<xs:element name="localDTMResponse">
<xs:complexType>
<xs:sequence>
<xs:element name="localDTM" type="xs:dateTime"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
该文件确实被转换为 base64binary。 JAXB 类已正确生成。端点可以工作，但它不包含该文件作为附件。即使我设置了 mtomEnabled=true，它仍将其作为 XML 标记的一部分包含在内。
我缺少什么？
