Websphere 中的 JAXWS

Question

我在 Netbeans 中编写了一个简单的 Web 服务，如下所示。

@WebService()
public class CRSEncryptString {

/**
 * Web service operation
 */
@WebMethod(operationName = "encryptString")
public String encryptString(@WebParam(name = "plainText")
String plainText) {
    System.out.println("************* ");
    String cipher = plainText;
    System.out.println("***************************");
    return cipher;
}

}

添加的 jar 与 JAX-WS 相关，例如： activation.jar、FastInfoset.jar、http.jar、jaxb jar、jaxws jar、saaj jar 等

它在 Tomcat 和 Weblogic 中工作正常。

但是，在 Websphere 6.1 中运行时出现错误。

以下是服务器日志：

[2/17/12 17:22:53:421 IST] 0000003c AdminHelper   A   ADMN1009I: An attempt is made to start the JAXWS-Test1_war application.
[2/17/12 17:22:54:390 IST] 0000003c ApplicationMg A   WSVR0200I: Starting application: JAXWS-Test1_war
[2/17/12 17:22:54:452 IST] 0000003c ApplicationMg A   WSVR0204I: Application: JAXWS-Test1_war  Application build level: Unknown
[2/17/12 17:22:54:624 IST] 0000003c WebGroup      A   SRVE0169I: Loading Web Module: JAXWS-Test1.war.
[2/17/12 17:22:54:936 IST] 0000003c http          I   WSSERVLET12: JAX-WS context listener initializing

[2/17/12 17:22:55:264 IST] 0000003c http          E   WSSERVLET11: failed to parse runtime descriptor: java.lang.LinkageError: You are loading old SAAJ from jar:file:/E:/Program%20Files/Websphere6_1/lib/j2ee.jar!/javax/xml/soap/MessageFactory.class
                             java.lang.LinkageError: You are loading old SAAJ from jar:file:/E:/Program%20Files/Websphere6_1/lib/j2ee.jar!/javax/xml/soap/MessageFactory.class
    at com.sun.xml.ws.api.SOAPVersion.<init>(SOAPVersion.java:184)
    at com.sun.xml.ws.api.SOAPVersion.<clinit>(SOAPVersion.java:83)
    at java.lang.J9VMInternals.initializeImpl(Native Method)
    at java.lang.J9VMInternals.initialize(J9VMInternals.java:177)
    at com.sun.xml.ws.api.BindingID.<clinit>(BindingID.java:318)
    at java.lang.J9VMInternals.initializeImpl(Native Method)
    at java.lang.J9VMInternals.initialize(J9VMInternals.java:177)
    at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.createBinding(DeploymentDescriptorParser.java:302)
    at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parseAdapters(DeploymentDescriptorParser.java:243)
    at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parse(DeploymentDescriptorParser.java:147)
    at com.sun.xml.ws.transport.http.servlet.WSServletContextListener.contextInitialized(WSServletContextListener.java:108)
    at com.ibm.ws.wswebcontainer.webapp.WebApp.notifyServletContextCreated(WebApp.java:605)
    at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinish(WebApp.java:265)
    at com.ibm.ws.wswebcontainer.webapp.WebApp.initialize(WebApp.java:271)
    at com.ibm.ws.wswebcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:88)
    at com.ibm.ws.wswebcontainer.VirtualHost.addWebApplication(VirtualHost.java:157)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApp(WebContainer.java:653)
    at com.ibm.ws.wswebcontainer.WebContainer.addWebApplication(WebContainer.java:606)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:333)
    at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:549)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1295)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1129)
    at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:567)
    at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:814)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:948)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl$1.run(ApplicationMgrImpl.java:1478)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManagerImpl.java:3731)
    at com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextManagerImpl.java:3813)
    at com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityContext.java:245)
    at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:1483)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:615)
    at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:62)
    at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:615)
    at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:265)
    at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1089)
    at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:971)
    at com.sun.jmx.mbeanserver.DynamicMetaDataImpl.invoke(DynamicMetaDataImpl.java:231)
    at com.sun.jmx.mbeanserver.MetaDataImpl.invoke(MetaDataImpl.java:238)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:833)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:802)
    at com.ibm.ws.management.AdminServiceImpl$1.run(AdminServiceImpl.java:1055)
    at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
    at com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:948)
    at com.ibm.ws.management.application.AppManagementImpl._startApplication(AppManagementImpl.java:1285)
    at com.ibm.ws.management.application.AppManagementImpl.startApplication(AppManagementImpl.java:1184)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:615)
    at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:62)
    at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:615)
    at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:265)
    at javax.management.modelmbean.RequiredModelMBean.invokeMethod(RequiredModelMBean.java:1089)
    at javax.management.modelmbean.RequiredModelMBean.invoke(RequiredModelMBean.java:971)
    at com.sun.jmx.mbeanserver.DynamicMetaDataImpl.invoke(DynamicMetaDataImpl.java:231)
    at com.sun.jmx.mbeanserver.MetaDataImpl.invoke(MetaDataImpl.java:238)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:833)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:802)
    at com.ibm.ws.management.AdminServiceImpl$1.run(AdminServiceImpl.java:1055)
    at com.ibm.ws.security.util.AccessController.doPrivileged(AccessController.java:118)
    at com.ibm.ws.management.AdminServiceImpl.invoke(AdminServiceImpl.java:948)
    at com.ibm.ws.management.connector.AdminServiceDelegator.invoke(AdminServiceDelegator.java:139)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:615)
    at com.ibm.ws.management.connector.soap.SOAPConnector.invoke(SOAPConnector.java:338)
    at com.ibm.ws.management.connector.soap.SOAPConnector.service(SOAPConnector.java:206)
    at com.ibm.ws.management.connector.soap.SOAPConnection.handleRequest(SOAPConnection.java:55)
    at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:680)
    at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:484)
    at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1498)
Caused by: java.lang.NoSuchMethodError: javax/xml/soap/MessageFactory.newInstance(Ljava/lang/String;)Ljavax/xml/soap/MessageFactory;
    at com.sun.xml.ws.api.SOAPVersion.<init>(SOAPVersion.java:178)
    ... 78 more

[2/17/12 17:22:55:467 IST] 0000003c WebApp        E   WSSERVLET11: failed to parse runtime descriptor: java.lang.LinkageError: You are loading old SAAJ from jar:file:/E:/Program%20Files/Websphere6_1/lib/j2ee.jar!/javax/xml/soap/MessageFactory.class
 [2/17/12 17:22:55:514 IST] 0000003c ServletWrappe I   SRVE0242I: [JAXWS-Test1_war] [/JAXWS-Test1] [CRSEncryptString]: Initialization successful.
[2/17/12 17:22:55:530 IST] 0000003c VirtualHost   I   SRVE0250I: Web Module <null> has been bound to default_host[*:9080,*:80,*:9443,*:5060,*:5061,*:443].
[2/17/12 17:22:55:561 IST] 0000003c ApplicationMg A   WSVR0221I: Application started: JAXWS-Test1_war
[2/17/12 17:23:05:714 IST] 00000048 ServletWrappe I   SRVE0242I: [JAXWS-Test1_war] [/JAXWS-Test1] [/index.jsp]: Initialization successful.

请进一步建议我。

提前致谢..........

Answer 1

我通过管理控制台更改Websphere的类加载器策略解决了这个问题，即从Parent_first到Parent_last策略......

Answer 2

一般来说，我认为如果您不使用 WebSphere 自己的实现，那么在 WebSphere 下使用 JAX-WS 将会遇到困难。因此，您不希望部署任何额外的 jar，而是使用 WebSphere 7 中已有的 jar。

Answer 3

如果您使用 RAD，则应该将 Websphere Application Server 运行时添加到项目构建路径，而不是添加外部 jar。

Answer 4

更改 Websphere 中的类加载器顺序是有风险的，因为您正在加载 Websphere 可能不支持的自定义实现，并且您可能会遇到 LinkageErrors 和 ClassCastException 等运行时错误，因为不同的实现共存于同一 Java 进程中。最好的方法是使用 IBM 支持的 Jax-WS 编程模型。
来使用自定义 Web 服务引擎

或者，您可以通过禁用 IBM的 -Dcom.ibm.websphere.webservices.DisableIBMJAXWSEngine=true