Webservice部署问题及解决办法

部署问题

如果您的目标应用服务器为Weblogic10.3，那么在使用我们的webservice模块时可能会出现启动或调用时错误问题（This class does not support SAAJ 1.1），如果是这样，请在您的Spring环境当中添加如下bean配置：

<bean id="messageFactory" class="org.springframework.ws.soap.saaj.SaajSoapMessageFactory"> <property name="messageFactory"> <bean class="com.sun.xml.messaging.saaj.soap.ver1_1.SOAPMessageFactory1_1Impl"/> </property> </bean>

这样Spring WS在初始化时就会采用这里bean中定义的MessageFactory实现类，对进入的消息进行处理。

如果在weblogic10上部署时出现如下异常，

java.lang.LinkageError: loader constraints violated when linking javax/xml/namespace/NamespaceContext class

出现上述异常后，可以通过在工程当中添加下面三个jar应该就可以解决出现的异常

xalan-2.7.x+.jar xercesImpl-2.8.x+.jar xml-apis-1.3.x+.jar

在Weblogic11g上，即使添加了上述三个jar包，同时也配置了上述的messageFactory，也还可能出现下面这种类型的异常：

Caused by: com.sun.xml.messaging.saaj.SOAPExceptionImpl: Unable to internalize message at com.sun.xml.messaging.saaj.soap.MessageImpl.init(MessageImpl.java:470) at com.sun.xml.messaging.saaj.soap.MessageImpl.<init>(MessageImpl.java:273) at com.sun.xml.messaging.saaj.soap.ver1_1.Message1_1Impl.<init>(Message1_1Impl.java:68) at com.sun.xml.messaging.saaj.soap.ver1_1.SOAPMessageFactory1_1Impl.createMessage(SOAPMessageFactory1_1Impl.java:62) at org.springframework.ws.soap.saaj.SaajSoapMessageFactory.createWebServiceMessage(SaajSoapMessageFactory.java:184) ... 27 more Caused by: java.lang.LinkageError: loader constraint violation: when resolving overridden method "com.sun.xml.messaging.saaj.soap.SOAPDocumentImpl.createAttribute&#40;Ljava/lang/String&#59;&#41;Lorg/w3c/dom/Attr&#59;" the class loader &#40;instance of weblogic/utils/classloaders/ChangeAwareClassLoader&#41; of the current class, com/sun/xml/messaging/saaj/soap/SOAPDocumentImpl, and its superclass loader &#40;instance of <bootloader>&#41;, have different Class objects for the type org/w3c/dom/Attr used in the signature at com.sun.xml.messaging.saaj.soap.SOAPPartImpl.<init>(SOAPPartImpl.java:88) at com.sun.xml.messaging.saaj.soap.ver1_1.SOAPPart1_1Impl.<init>(SOAPPart1_1Impl.java:58) at com.sun.xml.messaging.saaj.soap.ver1_1.Message1_1Impl.getSOAPPart(Message1_1Impl.java:78) at com.sun.xml.messaging.saaj.soap.MessageImpl.initCharsetProperty(MessageImpl.java:1304) at com.sun.xml.messaging.saaj.soap.MessageImpl.init(MessageImpl.java:363)

解决办法是添加另外一种类型的messageFactory bean（将原来添加的messageFactory bean删除），添加方法是在spring配置文件当中添加如下配置信息：

<bean id="messageFactory" class="org.springframework.ws.soap.axiom.AxiomSoapMessageFactory"> <property name="payloadCaching" value="true"/> </bean>

然后将我们的spring-ws升级到2.0.5或以上版本以及axiom升级到1.2.12或以上版本，这样我们的webservice应该就可以正常运行了。

最后，在Spring WS官网上已详细罗列了在各种不同应用服务器当中可能出现的问题，具体请参考http://static./spring-ws/site/faq.html，这里就不再赘述。