java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/ObjectMapper

缺少一个 jar 包，该 jar 包为：jackson-databind

依赖引入地址见：
http://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind/2.9.5
转:https://blog.csdn.net/qq_33811662/article/details/80601854