出现此异常,在pom.xml中添加如下依赖解决:
<dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.7.4</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.7.4</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.7.4</version> </dependency>
说明:jackson-annotations和jackson-databind依赖于jackson-databind
pom只加入jackson-databind依赖也可以
参考:https://blog.csdn.net/hlx20080808/article/details/51942759?locationNum=10