Java 尝试通过Odata服务连接时，ErpConfigContext和ODataQueryBuilder抛出错误

我正在尝试为云解决方案构建一个应用程序。尝试在本地运行应用程序时，出现错误：

java.lang.NoClassDefFoundError：

com/sap/cloud/sdk/odatav2/connectivity/ODataException

这是在JavaEE7WebProfileTomee7服务器上运行的

Apr 22, 2019 3:48:33 PM org.apache.catalina.core.ContainerBase startInternal
SEVERE: A child container failed during start
java.util.center code hereoncurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WorkOrderDemo]]
       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
       at java.util.concurrent.FutureTask.get(FutureTask.java:192)
       at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942)
       at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1420)
       at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1410)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WorkOrderDemo]]
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
       ... 6 more
Caused by: java.lang.NoClassDefFoundError: com/sap/cloud/sdk/odatav2/connectivity/ODataException
       at java.lang.Class.getDeclaredFields0(Native Method)
       at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
       at java.lang.Class.getDeclaredFields(Class.java:1916)
       at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:110)
       at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:269)
       at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:137)
       at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:69)
       at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:328)
       at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:768)
       at org.apache.catalina.startup.OpenEJBContextConfig.configureStart(OpenEJBContextConfig.java:124)
       at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
       at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
       at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       ... 6 more
Caused by: java.lang.ClassNotFoundException: com.sap.cloud.sdk.odatav2.connectivity.ODataException
       at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1309)
       at org.apache.tomee.catalina.TomEEWebappClassLoader.loadClass(TomEEWebappClassLoader.java:208)
       at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1137)
       ... 20 more
 
Apr 22, 2019 3:48:33 PM org.apache.catalina.core.ContainerBase startInternal
SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
       at java.util.concurrent.FutureTask.get(FutureTask.java:192)
       at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942)
       at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       at org.apache.catalina.startup.Catalina.start(Catalina.java:681)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
       at java.lang.reflect.Method.invoke(Method.java:498)
       at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:353)
       at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:493)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
       at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1420)
       at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1410)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
       at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:950)
       at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       ... 6 more
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WorkOrderDemo]]
       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
       at java.util.concurrent.FutureTask.get(FutureTask.java:192)
       at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942)
       ... 8 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WorkOrderDemo]]
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
       ... 6 more
Caused by: java.lang.NoClassDefFoundError: com/sap/cloud/sdk/odatav2/connectivity/ODataException
       at java.lang.Class.getDeclaredFields0(Native Method)
       at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
       at java.lang.Class.getDeclaredFields(Class.java:1916)
       at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:110)
       at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:269)
       at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:137)
       at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:69)
       at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:328)
       at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:768)
       at org.apache.catalina.startup.OpenEJBContextConfig.configureStart(OpenEJBContextConfig.java:124)
       at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
       at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
       at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       ... 6 more
Caused by: java.lang.ClassNotFoundException: com.sap.cloud.sdk.odatav2.connectivity.ODataException
       at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1309)
       at org.apache.tomee.catalina.TomEEWebappClassLoader.loadClass(TomEEWebappClassLoader.java:208)
       at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1137)
       ... 20 more
 
Apr 22, 2019 3:48:33 PM org.apache.catalina.startup.Catalina start
SEVERE: The required Server component failed to start so Tomcat is unable to start.
org.apache.catalina.LifecycleException: Failed to start component [StandardServer[8005]]
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
       at org.apache.catalina.startup.Catalina.start(Catalina.java:681)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
       at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
       at java.lang.reflect.Method.invoke(Method.java:498)
       at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:353)
       at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:493)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardService[Catalina]]
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
       at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:793)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       ... 7 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina]]
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
       at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       ... 9 more
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
       at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:950)
       at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       ... 11 more
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
       at java.util.concurrent.FutureTask.get(FutureTask.java:192)
       at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942)
       ... 13 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost]]
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
       at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1420)
       at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1410)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.catalina.LifecycleException: A child container failed during start
       at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:950)
       at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:872)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       ... 6 more
Caused by: java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WorkOrderDemo]]
       at java.util.concurrent.FutureTask.report(FutureTask.java:122)
       at java.util.concurrent.FutureTask.get(FutureTask.java:192)
       at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:942)
       ... 8 more
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/WorkOrderDemo]]
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
       ... 6 more
Caused by: java.lang.NoClassDefFoundError: com/sap/cloud/sdk/odatav2/connectivity/ODataException
       at java.lang.Class.getDeclaredFields0(Native Method)
       at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
       at java.lang.Class.getDeclaredFields(Class.java:1916)
       at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:110)
       at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:269)
       at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:137)
       at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:69)
       at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:328)
       at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:768)
       at org.apache.catalina.startup.OpenEJBContextConfig.configureStart(OpenEJBContextConfig.java:124)
       at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)
       at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:94)
       at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5154)
       at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
       ... 6 more
Caused by: java.lang.ClassNotFoundException: com.sap.cloud.sdk.odatav2.connectivity.ODataException
       at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1309)
       at org.apache.tomee.catalina.TomEEWebappClassLoader.loadClass(TomEEWebappClassLoader.java:208)
       at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1137)
       ... 20 more

服务器的本地目标已配置为

ErpQueryEndpoint

Pom.xml

还包括

groupID

和

artifactId

用于

Odata

连接。包裹已经进口

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                 // TODO Auto-generated method stub
                 //response.getWriter().append("Served at: ").append(request.getContextPath());
                 final ErpConfigContext configContext = new ErpConfigContext(ErpDestination.getDefaultName());
                 try {
                        final List<MyWorkOrderType> workOrders = ODataQueryBuilder
                                .withEntity("/sap/opu/odata/sap/ZCF_workorder_SRV",
                                        "WorkOrderSet")
                                .select("Aufnr",
                                        "Ktext",
                                        "Auart",
                                        "Asttx")
                                .build()
                                .execute(configContext)
                                .asList(MyWorkOrderType.class);
                 } catch (IllegalArgumentException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                 } catch (ODataException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                 }
           }

受保护的void doGet（HttpServletRequest请求，HttpServletResponse响应）抛出ServletException，IOException{
//TODO自动生成的方法存根
//response.getWriter（）.append（“服务于：”）.append（request.getContextPath（））；
final-ErpConfigContext-configContext=new-ErpConfigContext（ErpDestination.getDefaultName（））；
试一试{
最终列表工单=ODataQueryBuilder
.与实体（“/sap/opu/odata/sap/ZCF\U工作订单\U SRV”，
“工作指令集”）
.选择（“Aufnr”，
“Ktext”，
“奥亚特”，
“Asttx”）
.build（）
.execute（配置上下文）
.asList（MyWorkOrderType.class）；
}捕获（IllegalArgumentException e）{
//TODO自动生成的捕捉块
e、 printStackTrace（）；
}捕获（ODataException e）{
//TODO自动生成的捕捉块
e、 printStackTrace（）；
}
}

正如我在您的代码中看到的，您正在查询SAP S/4HANA的自定义OData服务。对于自定义数据ODATA服务的ODATA查询，您也可以考虑使用ODataQueryBuilder来代替。要将VDM与自定义OData服务一起使用，可以使用中所述的VDM生成器。顺便说一下，它也适用于S/4HANA内部部署。您可以找到有关自定义的更多详细信息。

请添加标签。您可以将

mvn dependency:tree

的输出添加到您的问题中吗？在您的

pom.xml

中，类路径中似乎缺少

com.sap.cloud.servicesdk:odatav2连接库。但是现在我在import com.sap.cloud.sdk.s4hana.datamodel.odata.helper.OneToOneLink行中得到了生成的java的编译错误；WorkOrderOneToOneLink.java:[12,55]找不到符号[ERROR]符号：类OneToOneLink。我检查了POM，它看起来不错。有什么建议吗？谢谢。你的类路径上有
com.sap.cloud.s4hana.datamodel:odatacore
依赖项吗？deep dive博客文章假设您使用我们的一个原型来使用生成的VDM。谢谢，Christoph。我将POM中的SAP Cloud SDK版本更改为2.14.0，这是迄今为止的最新版本，从而解决了这个问题。com.sap.cloud.s4hana sdk bom 2.14.0