nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jackson/core/util/DefaultIndenter

需要加 

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.9.2</version>
</dependency>
 

个人理解：

 

 比如这种NoClass 应该想到是缺少jar

转载于:https://my.oschina.net/alyouge/blog/1580854