java.lang.NoClassDefFoundError:com/fasterxml/jackson/core/json/JsonWriteFeature原因是需要的fasterxml的版本包和其他包里面的旧版本重复而丢弃运行命令：mvndependency:tree-Dverbose-Dincludes=*fasterxml*:*databind*找出所有包含*fasterxml*:*jackson*的包：[INFO][INFO]---maven-dependency-plugin:2.8:tree(default-cli)@sr-flow-api---[INFO]com.huawei.