问题描述

我正在寻找一种在本地和使用 Cloud SDK 在 SAP Cloud Platform 上调用 S4HANA 本地 BAPI 的方法。问题是如何定义 RFC 目标，就像 HTTP 目标一样。

我还遇到了 JCo class not found 异常，找不到合适的解决方法。

本地

在 HTTP 目标中，我可以提供如下环境变量：

set destinations=[{name: "destName", url: "URL", username: "username", password: "password"}]

但不清楚如何定义 RFC 目标，哪些属性是必需的，如 jco 属性。

SCP云铸造厂

我在 SAP Cloud Platform 上创建了一个 RFC 目标。但是我找不到一种方法来装饰这个目的地以涉及 Cloud SDK 中的其他属性，就像 HTTP 目的地一样。

Destination destination = DestinationAccessor.getDestination(destName);
destination.asHttp().decorate(DefaultErpHttpDestination::new);

请注意，当我进行 bapi 调用时，RfcDestination 是不可接受的，仅需要类型 Destination。RfcDestination 不是接口 Destination 的实现类。

JCO 类未找到异常

java.lang.NoClassDefFoundError: com/sap/conn/jco/JCo

将 SAP Java Build Pack 与 Spring 引导一起使用时存在一个已知问题。我手动将 jar 文件 sapjco3.jar 添加到项目类路径中。但它仍然没有工作。

https://answers.sap.com/questions/12935437/call-op-bapi-using-cloud-sdk.html

更新

运行时未找到 JCO 类异常

你说的对。我在 SCP 上部署了应用程序，然后调用我提供的其余 API 来调用 S4HANA On-premise 系统的 BAPI。然后我在运行时得到了这个异常。
我正在使用 Spring Boot 应用程序。
Spring boot 项目由 SAP Cloud SDK spring archetype 生成。
请参阅下面的错误堆栈跟踪。
右键单击我的项目->构建路径->配置构建路径->选择库选项卡->添加外部jar
我将我的应用程序部署为 Jar 文件。

异常堆栈跟踪

2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR org.springframework.web.util.NestedServletException: Handler dispatch failed; nested exception is java.lang.NoClassDefFoundError: com/sap/conn/jco/JCoException
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1055)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.servlet.RequestAccessorFilter.lambda$doFilter$1(RequestAccessorFilter.java:71)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.thread.AbstractThreadContextExecutor.lambda$execute$0(AbstractThreadContextExecutor.java:317)
2020-04-09T01:55:46.220+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.thread.ThreadContextCallable.call(ThreadContextCallable.java:247)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.thread.AbstractThreadContextExecutor.execute(AbstractThreadContextExecutor.java:319)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.servlet.RequestAccessorFilter.doFilter(RequestAccessorFilter.java:71)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:526)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
2020-04-09T01:55:46.221+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:747)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1579)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at java.lang.Thread.run(Thread.java:836)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR Caused by: java.lang.NoClassDefFoundError: com/sap/conn/jco/JCoException
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.BapiTransactionFactory.createJCoTransaction(BapiTransactionFactory.java:33)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.AbstractTransactionFactory.createTransaction(AbstractTransactionFactory.java:39)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.RemoteFunctionRequestExecutor.execute(RemoteFunctionRequestExecutor.java:41)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.BapiRequest.execute(BapiRequest.java:79)
2020-04-09T01:55:46.222+0000 [APP/PROC/WEB/0] ERR   at com.bosch.test.service.CostCenterBapiService.getCostCenters(CostCenterBapiService.java:48)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at com.bosch.test.controllers.CostCenterBapiController.getCostCenterBapi(CostCenterBapiController.java:23)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at java.lang.reflect.Method.invoke(Method.java:498)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040)
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   ... 47 more
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR Caused by: java.lang.ClassNotFoundException: com.sap.conn.jco.JCoException
2020-04-09T01:55:46.223+0000 [APP/PROC/WEB/0] ERR   at java.net.URLClassLoader.findClass(URLClassLoader.java:444)
2020-04-09T01:55:46.224+0000 [APP/PROC/WEB/0] ERR   at java.lang.ClassLoader.loadClass(ClassLoader.java:480)
2020-04-09T01:55:46.224+0000 [APP/PROC/WEB/0] ERR   at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:92)
2020-04-09T01:55:46.224+0000 [APP/PROC/WEB/0] ERR   at java.lang.ClassLoader.loadClass(ClassLoader.java:413)
2020-04-09T01:55:46.224+0000 [APP/PROC/WEB/0] ERR   ... 64 more

我要强调的一件事是 SAP 提供的官方文档说“无法将 SAP Java 连接器与 Spring Boot 应用程序一起使用”。

https://help.sap.com/viewer/65de2977205c403bbc107264b8eccf4b/Cloud/en-US/3cee866c27ec4492b789b10c5d52d94b.html

具有非 Spring Boot 应用程序的 SAP Java 连接器

我基于 SAP Cloud SDK 原型 scp-cf-tomee 创建了一个新项目，并尝试调用 bapi。我认为 JCo 问题已经消失，但是在调用 Bapi 时我得到了一个新的异常“未设置用户信息”。有人有类似的问题，但似乎还没有解决方案。

https://answers.sap.com/questions/12969692/getting-access-to-the-sap-java-connector-in-cloud.html

2020-04-09T02:25:37.146+0000 [APP/PROC/WEB/0] ERR java.lang.IllegalStateException: User information is not set.
2020-04-09T02:25:37.146+0000 [APP/PROC/WEB/0] ERR   at com.sap.xs.security.UserInfoHolder.getUserInfo(UserInfoHolder.java:48)
2020-04-09T02:25:37.146+0000 [APP/PROC/WEB/0] ERR   at com.sap.core.connectivity.jco.kotyo.cf.auth.CFTenantProvider.getCurrentTenant(CFTenantProvider.java:21)
2020-04-09T02:25:37.146+0000 [APP/PROC/WEB/0] ERR   at com.sap.conn.jco.rt.TenantContextManager.getTenantContext(TenantContextManager.java:36)
2020-04-09T02:25:37.146+0000 [APP/PROC/WEB/0] ERR   at com.sap.conn.jco.rt.DefaultDestinationManager.searchDestination(DefaultDestinationManager.java:376)
2020-04-09T02:25:37.146+0000 [APP/PROC/WEB/0] ERR   at com.sap.conn.jco.rt.DefaultDestinationManager.getDestinationInstance(DefaultDestinationManager.java:109)
2020-04-09T02:25:37.146+0000 [APP/PROC/WEB/0] ERR   at com.sap.conn.jco.JCoDestinationManager.getDestination(JCoDestinationManager.java:56)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.JCoTransaction.<init>(JCoTransaction.java:99)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.BapiTransactionFactory.createJCoTransaction(BapiTransactionFactory.java:33)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.AbstractTransactionFactory.createTransaction(AbstractTransactionFactory.java:39)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.RemoteFunctionRequestExecutor.execute(RemoteFunctionRequestExecutor.java:41)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.s4hana.connectivity.rfc.BapiRequest.execute(BapiRequest.java:79)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.bosch.bapi.service.CostCenterBapiService.getCostCenters(CostCenterBapiService.java:44)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.bosch.bapi.CostCenterBapiServlet.doGet(CostCenterBapiServlet.java:30)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.openejb.server.httpd.EEFilter.doFilter(EEFilter.java:65)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.servlet.RequestAccessorFilter.lambda$doFilter$1(RequestAccessorFilter.java:71)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.thread.AbstractThreadContextExecutor.lambda$execute$0(AbstractThreadContextExecutor.java:317)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.thread.ThreadContextCallable.call(ThreadContextCallable.java:247)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.thread.AbstractThreadContextExecutor.execute(AbstractThreadContextExecutor.java:319)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.servlet.RequestAccessorFilter.doFilter(RequestAccessorFilter.java:71)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.security.servlet.HttpCachingHeaderFilter.doFilter(HttpCachingHeaderFilter.java:83)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at com.sap.cloud.sdk.cloudplatform.security.servlet.HttpSecurityHeadersFilter.doFilter(HttpSecurityHeadersFilter.java:41)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.filters.RestCsrfPreventionFilter.doFilter(RestCsrfPreventionFilter.java:125)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
2020-04-09T02:25:37.147+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:543)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomee.catalina.OpenEJBSecurityListener$RequestCapturer.invoke(OpenEJBSecurityListener.java:97)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at com.sap.xs.java.valves.ErrorReportValve.invoke(ErrorReportValve.java:66)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at ch.qos.logback.access.tomcat.LogbackValve.invoke(LogbackValve.java:256)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at com.sap.xs.security.TenantIdValve.invoke(TenantIdValve.java:33)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at com.sap.xs.security.UserInfoValve.invoke(UserInfoValve.java:19)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at com.sap.xs.statistics.tomcat.valve.RequestTracingValve.invoke(RequestTracingValve.java:43)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at com.sap.xs.logging.catalina.RuntimeInfoValve.invoke(RuntimeInfoValve.java:40)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:747)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:609)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:818)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1623)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
2020-04-09T02:25:37.148+0000 [APP/PROC/WEB/0] ERR   at java.lang.Thread.run(Thread.java:836)

装饰目的地

我同意你的解释。也许不需要将其作为 Http 目的地。但由于 SAP Java 连接器问题，我被卡住了。

本地 RFC 目标定义

实际上我不知道 RFC 目标需要哪些属性。如果我只使用 HTTP，我会得到 http 状态 404 和服务未找到异常。

标签： sap-cloud-platformsap-cloud-sdkbapis4hana

解决方案

感谢您在这里提出这个问题。我可以识别您问题中的不同方面，因此在下文中单独讨论它们。

JCO 类未找到异常

请就以下问题提供更多信息：

我了解您java.lang.NoClassDefFoundError: com/sap/conn/jco/JCo在将应用程序部署到 SCP 后在运行时收到一个。我的理解正确吗？
我知道您使用的是 Spring Boot 应用程序，对吗？
您是否使用过 SAP Cloud SDK 原型？
请在此处附上申请日志以供进一步参考。
您能否详细说明一下您是如何将 sapjco3.jar 添加到项目类路径中的？
您将应用程序部署为 jar 还是 war？

通过环境变量创建 RFC 目标

我了解您很难理解如何在环境变量中指定 RFC 目标。请问您已经分别尝试过哪些具体问题（错误消息等）您面临哪些问题？

不能修饰 RFC 目标以涉及其他属性

您正确指出，考虑到 HTTP 目标上的其他属性，SAP Cloud SDK 能够丰富请求标头。因此，您需要HttpDestination像这样装饰您的实例：

Destination destination = DestinationAccessor.getDestination(destName);
destination.asHttp().decorate(DefaultErpHttpDestination::new);

我了解您的问题对于 RFC 目的地的工作方式。据我判断，SAP 提供的 Java 连接器 (JCO) 库无论如何都会查看目标属性。因此，我认为在 RFC 目标领域中没有必要这样做。如果您不同意，请您更准确地概述您的要求。

BapiRequest 接受目的地，而不是 RfcDestination

BapiRequest::execute我理解你的问题，你对期望 aDestination而不是a感到惊讶RfcDestination。乍一看确实令人惊讶，但是，这是因为 SAP Cloud SDK 还支持调用包装为 SOAP API 的 BAPI。这通过HttpDestination. 对于您的具体用例，只需使用DestinationAccessor.getDestination("xyz")该返回值并将其传递给execute方法即可。您无需担心其他任何事情。

sap-cloud-platform - 使用 Cloud SDK 定义 S4HANA BAPI 调用的 SCP 目标