使用Cloud SDK 3.9.0在S4Hana内部部署的Spring Boot应用程序

Question

我正在尝试编写一个Spring Boot应用程序（Gradle），该应用程序将通过云连接器从S4 / Hana本地系统中查询数据。

仅供参考： 我已经在运行Java（Maven）应用程序（例如SAP的示例），运行正常。所以我的云设置应该可以。

将Spring Boot应用程序部署到Cloud Foundry时，出现以下错误消息：

   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT ***************************
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT APPLICATION FAILED TO START
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT ***************************
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT Description:
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT An attempt was made to call a method that does not exist. The attempt was made from the following location:
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT     com.sap.cloud.sdk.cloudplatform.connectivity.ScpCfDestinationLoader.<clinit>(ScpCfDestinationLoader.java:53)
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT The following method did not exist:
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT     com.sap.cloud.sdk.cloudplatform.cache.CacheManager.register(Lcom/github/benmanes/caffeine/cache/Cache;)Lcom/github/benmanes/caffeine/cache/Cache;
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT The method's class, com.sap.cloud.sdk.cloudplatform.cache.CacheManager, is available from the following locations:
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT     jar:file:/home/vcap/app/BOOT-INF/lib/caching-2.22.0.jar!/com/sap/cloud/sdk/cloudplatform/cache/CacheManager.class
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT     jar:file:/home/vcap/app/BOOT-INF/lib/caching-3.9.0.jar!/com/sap/cloud/sdk/cloudplatform/cache/CacheManager.class
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT It was loaded from the following location:
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT     jar:file:/home/vcap/app/BOOT-INF/lib/caching-2.22.0.jar!/
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT Action:
   2019-12-18T13:58:34.26+0100 [APP/PROC/WEB/0] OUT Correct the classpath of your application so that it contains a single, compatible version of com.sap.cloud.sdk.cloudplatform.cache.CacheManager
   2019-12-18T13:58:34.39+0100 [APP/PROC/WEB/0] OUT Exit status 1

我的Spring Boot应用程序类的配置如下：

我正在使用这些gradle依赖项：

  compile "com.sap.cloud.sdk.cloudplatform:scp-cf:3.9.0"
  compile "com.sap.cloud.sdk.s4hana:s4hana-all:3.9.0"
  compile "com.sap.cloud.sdk.cloudplatform:caching:3.9.0"
  compile "com.sap.cloud.sdk.cloudplatform:security-servlet:3.9.0"

和manifest.yml看起来像这样：

我缺少某些依赖项吗？还是* .yml错误？

Answer 1

好的，我找到了原因，但是我不明白为什么这是一个问题： 如果我使用：

DestinationAccessor.tryGetDestination("myDestination")

我得到了错误！当我尝试使用

到达目的地时

DestinationAccessor.getDestination("myDestination")

没有问题！