CXF全接触(二) --- CXF2.0.9的Bug？(分析)

这是我在实际开发中遇到的问题，写出来是希望后来者不要像我一样浪费太多的时间在这个问题上。 

阅读本文前，请先查阅我的另一篇文章:

http://blog.csdn.net/kunshan_shenbin/archive/2009/01/17/3813000.aspx

首先声明，这是在JDK1.6.0_10环境下发现的。

先看出错信息：

......

2009-1-17 20:07:49 org.apache.xml.security.signature.Reference verify
信息: Verification successful for URI "#id-7723625"
2009-1-17 20:07:50 com.sun.xml.internal.messaging.saaj.soap.MessageImpl saveChanges
严重: SAAJ0539: Unable to get header stream in saveChanges
2009-1-17 20:07:50 com.sun.xml.internal.messaging.saaj.soap.MessageImpl saveChanges
严重: SAAJ0540: Error during saving a multipart message
2009-1-17 20:07:50 org.apache.cxf.phase.PhaseInterceptorChain doIntercept
信息: Interceptor has thrown exception, unwinding now
org.apache.cxf.binding.soap.SoapFault: SOAPEXCEPTION
 at org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor$SAAJOutEndingInterceptor.handleMessage(SAAJOutInterceptor.java:122)
 at org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor$SAAJOutEndingInterceptor.handleMessage(SAAJOutInterceptor.java:103)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
 at org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:74)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
 at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:77)
 at org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDestination.java:92)
 at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:285)
 at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:168)
 at org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:175)
 at org.apache.cxf.transport.servlet.AbstractCXFServlet.doPost(AbstractCXFServlet.java:153)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
 at java.lang.Thread.run(Thread.java:619)
Caused by: com.sun.xml.internal.messaging.saaj.SOAPExceptionImpl: Error during saving a multipart message
 at com.sun.xml.internal.messaging.saaj.soap.MessageImpl.saveChanges(MessageImpl.java:1126)
 at com.sun.xml.internal.messaging.saaj.soap.MessageImpl.writeTo(MessageImpl.java:1215)
 at org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor$SAAJOutEndingInterceptor.handleMessage(SAAJOutInterceptor.java:116)
 ... 24 more
Caused by: com.sun.xml.internal.messaging.saaj.SOAPExceptionImpl: Unable to get header stream in saveChanges:
 at com.sun.xml.internal.messaging.saaj.soap.MessageImpl.saveChanges(MessageImpl.java:1103)
 ... 26 more
Caused by: java.io.IOException: org.apache.xml.serializer.ToXMLSAXHandler cannot be cast to org.apache.xml.serializer.SerializationHandler
 at com.sun.xml.internal.messaging.saaj.soap.impl.EnvelopeImpl.output(EnvelopeImpl.java:298)
 at com.sun.xml.internal.messaging.saaj.soap.impl.EnvelopeImpl.output(EnvelopeImpl.java:309)
 at com.sun.xml.internal.messaging.saaj.soap.SOAPPartImpl.getContentAsStream(SOAPPartImpl.java:305)
 at com.sun.xml.internal.messaging.saaj.soap.MessageImpl.getHeaderBytes(MessageImpl.java:947)
 at com.sun.xml.internal.messaging.saaj.soap.MessageImpl.saveChanges(MessageImpl.java:1098)
 ... 26 more
2009-1-17 20:07:50 org.apache.cxf.phase.PhaseInterceptorChain doIntercept
信息: Interceptor has thrown exception, unwinding now
org.w3c.dom.DOMException: HIERARCHY_REQUEST_ERR: An attempt was made to insert a node where it is not permitted.
 at com.sun.org.apache.xerces.internal.dom.CoreDocumentImpl.insertBefore(CoreDocumentImpl.java:381)
 at com.sun.org.apache.xerces.internal.dom.NodeImpl.appendChild(NodeImpl.java:235)
 at com.sun.xml.internal.messaging.saaj.soap.SOAPPartImpl.appendChild(SOAPPartImpl.java:471)
 at org.apache.cxf.staxutils.W3CDOMStreamWriter.newChild(W3CDOMStreamWriter.java:81)
 at org.apache.cxf.staxutils.W3CDOMStreamWriter.writeStartElement(W3CDOMStreamWriter.java:98)
 at org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor.writeSoapEnvelopeStart(SoapOutInterceptor.java:98)
 at org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor.handleMessage(SoapOutInterceptor.java:79)
 at org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor.handleMessage(SoapOutInterceptor.java:60)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
 at org.apache.cxf.interceptor.AbstractFaultChainInitiatorObserver.onMessage(AbstractFaultChainInitiatorObserver.java:96)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:260)
 at org.apache.cxf.interceptor.OutgoingChainInterceptor.handleMessage(OutgoingChainInterceptor.java:74)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
 at org.apache.cxf.transport.ChainInitiationObserver.onMessage(ChainInitiationObserver.java:77)
 at org.apache.cxf.transport.servlet.ServletDestination.invoke(ServletDestination.java:92)
 at org.apache.cxf.transport.servlet.ServletController.invokeDestination(ServletController.java:285)
 at org.apache.cxf.transport.servlet.ServletController.invoke(ServletController.java:168)
 at org.apache.cxf.transport.servlet.AbstractCXFServlet.invoke(AbstractCXFServlet.java:175)
 at org.apache.cxf.transport.servlet.AbstractCXFServlet.doPost(AbstractCXFServlet.java:153)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
 at java.lang.Thread.run(Thread.java:619)
2009-1-17 20:07:50 org.apache.cxf.phase.PhaseInterceptorChain doIntercept
信息: Interceptor has thrown exception, unwinding now
org.apache.cxf.binding.soap.SoapFault: Error reading XMLStreamReader.
 at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:183)
 at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:56)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
 at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:429)
 at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:2001)
 at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1828)
 at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:66)
 at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:590)
 at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
 at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:276)
 at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:222)
 at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:73)
 at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:171)
 at $Proxy15.sayHi(Unknown Source)
 at com.cecltd.servlet.SayHiServlet.doPost(SayHiServlet.java:34)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
 at java.lang.Thread.run(Thread.java:619)
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,1]
Message: Premature end of file.
 at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:588)
 at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.nextTag(XMLStreamReaderImpl.java:1219)
 at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:85)
 ... 29 more
2009-1-17 20:07:50 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet SayHiServlet threw exception
javax.xml.ws.soap.SOAPFaultException: Error reading XMLStreamReader.
 at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:192)
 at $Proxy15.sayHi(Unknown Source)
 at com.cecltd.servlet.SayHiServlet.doPost(SayHiServlet.java:34)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
 at java.lang.Thread.run(Thread.java:619)
Caused by: org.apache.cxf.binding.soap.SoapFault: Error reading XMLStreamReader.
 at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:183)
 at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:56)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
 at org.apache.cxf.endpoint.ClientImpl.onMessage(ClientImpl.java:429)
 at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:2001)
 at org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1828)
 at org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:66)
 at org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:590)
 at org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:62)
 at org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:220)
 at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:276)
 at org.apache.cxf.endpoint.ClientImpl.invoke(ClientImpl.java:222)
 at org.apache.cxf.frontend.ClientProxy.invokeSync(ClientProxy.java:73)
 at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:171)
 ... 16 more
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[1,1]
Message: Premature end of file.
 at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.next(XMLStreamReaderImpl.java:588)
 at com.sun.org.apache.xerces.internal.impl.XMLStreamReaderImpl.nextTag(XMLStreamReaderImpl.java:1219)
 at org.apache.cxf.binding.soap.interceptor.ReadHeadersInterceptor.handleMessage(ReadHeadersInterceptor.java:85)
 ... 29 more

 

 代码如下：

服务端参考前一篇文档：http://blog.csdn.net/kunshan_shenbin/archive/2009/01/17/3813000.aspx

为了区分服务端与客户端，我把工程名更改为：J6CxfServer，如下图所示：

 

现在新建客户端如下图所示：

所使用的Jar包和上一篇文章是一样的，即和服务端一致。

代码如下：(实际上就是上篇中的测试部分的代码)

PasswordHandler.java

package com.cecltd.security; import java.io.IOException; import java.util.HashMap; import java.util.Map; import javax.security.auth.callback.Callback; import javax.security.auth.callback.CallbackHandler; import javax.security.auth.callback.UnsupportedCallbackException; import org.apache.ws.security.WSPasswordCallback; public class PasswordHandler implements CallbackHandler { private Map<String, String> passwords = new HashMap<String, String>(); public PasswordHandler() { passwords.put("apmserver", "apmserverpass"); passwords.put("apmclient", "apmclientpass"); } public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException { WSPasswordCallback pc = (WSPasswordCallback) callbacks[0]; String id = pc.getIdentifer(); pc.setPassword((String) passwords.get(id)); } }

SayHiSrvc.java

package com.cecltd.service; import javax.jws.WebService; @WebService public interface SayHiSrvc { public String sayHi(String username); }

SayHiServlet.java

package com.cecltd.servlet; import java.io.IOException; import javax.servlet.RequestDispatcher; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.context.WebApplicationContext; import org.springframework.web.context.support.WebApplicationContextUtils; import com.cecltd.service.SayHiSrvc; public class SayHiServlet extends HttpServlet { private static final long serialVersionUID = -5250627675717564249L; protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String username = String.valueOf(request.getParameter("username")); ServletContext sc = getServletContext(); WebApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(sc); SayHiSrvc sayHiSrvc = (SayHiSrvc)context.getBean("SayHiSrvc"); String message = sayHiSrvc.sayHi(username); request.setAttribute("Message", message); RequestDispatcher rd = getServletContext().getRequestDispatcher("/index.jsp"); rd.forward(request, response); } }

insecurity_enc.properties

org.apache.ws.security.crypto.provider=org.apache.ws.security.components.crypto.Merlin org.apache.ws.security.crypto.merlin.keystore.type=jks org.apache.ws.security.crypto.merlin.keystore.password=keystorePass org.apache.ws.security.crypto.merlin.alias.password=apmclientpass org.apache.ws.security.crypto.merlin.keystore.alias=apmclient org.apache.ws.security.crypto.merlin.file=clientStore.jks

outsecurity_enc.properties

org.apache.ws.security.crypto.provider=org.apache.ws.security.components.crypto.Merlin org.apache.ws.security.crypto.merlin.keystore.type=jks org.apache.ws.security.crypto.merlin.keystore.password=keystorePass org.apache.ws.security.crypto.merlin.alias.password=apmclientpass org.apache.ws.security.crypto.merlin.keystore.alias=apmclient org.apache.ws.security.crypto.merlin.file=clientStore.jks

outsecurity_sign.properties

org.apache.ws.security.crypto.provider=org.apache.ws.security.components.crypto.Merlin org.apache.ws.security.crypto.merlin.keystore.type=jks org.apache.ws.security.crypto.merlin.keystore.password=keystorePass org.apache.ws.security.crypto.merlin.alias.password=apmclientpass org.apache.ws.security.crypto.merlin.keystore.alias=apmclient org.apache.ws.security.crypto.merlin.file=clientStore.jks

applicationContext.xml

<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"> <bean id="SayHiSrvc" class="com.cecltd.service.SayHiSrvc" factory-bean="SayHiSrvcFactory" factory-method="create"/> <bean id="SayHiSrvcFactory" class="org.apache.cxf.jaxws.JaxWsProxyFactoryBean"> <property name="serviceClass" value="com.cecltd.service.SayHiSrvc" /> <property name="address" value="${host.url}/SayHiSrvc" /> <property name="outInterceptors"> <list> <bean class="org.apache.cxf.binding.soap.saaj.SAAJOutInterceptor" /> <ref bean="wss4jOutConfiguration" /> </list> </property> <property name="inInterceptors"> <list> <bean class="org.apache.cxf.binding.soap.saaj.SAAJInInterceptor" /> <ref bean="wss4jInConfiguration" /> </list> </property> </bean> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>/WEB-INF/serverhost.properties</value> </list> </property> </bean> <bean id="wss4jOutConfiguration" class="org.apache.cxf.ws.security.wss4j.WSS4JOutInterceptor"> <property name="properties"> <map> <entry key="action" value="Timestamp Encrypt Signature" /> <entry key="user" value="apmclient" /> <entry key="encryptionUser" value="apmserver" /> <entry key="signaturePropFile" value="outsecurity_sign.properties" /> <entry key="signatureKeyIdentifier" value="IssuerSerial" /> <entry key="encryptionPropFile" value="outsecurity_enc.properties" /> <entry> <key> <value>passwordCallbackRef</value> </key> <ref bean="passwordCallback" /> </entry> </map> </property> </bean> <bean id="wss4jInConfiguration" class="org.apache.cxf.ws.security.wss4j.WSS4JInInterceptor"> <property name="properties"> <map> <entry key="action" value="Timestamp Encrypt Signature" /> <entry key="user" value="apmclient" /> <entry key="decryptionPropFile" value="insecurity_enc.properties" /> <entry key="enableSignatureConfirmation" value="true" /> <entry key="signaturePropFile" value="outsecurity_sign.properties" /> <entry key="signatureKeyIdentifier" value="IssuerSerial" /> <entry> <key> <value>passwordCallbackRef</value> </key> <ref bean="passwordCallback" /> </entry> </map> </property> </bean> <bean id="passwordCallback" class="com.cecltd.security.PasswordHandler"/> </beans>

serverhost.properties

host.url=http://127.0.0.1:8080/J6CxfServer/services

web.xml

<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <display-name>J6CxfSrvcClient</display-name> <description>J6CxfSrvcClient</description> <context-param> <param-name>contextConfigLocation</param-name> <param-value>WEB-INF/applicationContext.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <servlet> <servlet-name>SayHiServlet</servlet-name> <servlet-class>com.cecltd.servlet.SayHiServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>SayHiServlet</servlet-name> <url-pattern>/SayHi</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>

index.jsp

<html> <title> </title> <body> <form action="SayHi" method="post"> <h1>Message:</h1> <% if( request.getAttribute("Message") == null ) { %> <h2>None</h2> <% } else { %> <h2><%= request.getAttribute("Message") %></h2> <% } %> <input type="text" id="username" name="username" /> <br/> <input type="submit" value="submit"> </form> </body> </html>

以上是客户端及服务端的代码，很明显，客户端也就是上一篇中测试部分的代码改编而来。然而，在上例JUnit4中运行正常的代码，在以网页(Servlet/JSP)形式下居然抛出了本文开头那样的错误，至今仍然很是不解。

解决的方法，还请继续关注我的后续博文。