jackson 序列化LocalDate LocalDateTime报错 com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Java 8 date

1.需在项目中引入jackson-datatype-jsr310模块：

 下载jackson-datatype-jsr310.jar文件引入工程

2.在代码中显式注册模块： 

ObjectMapper mapper = new ObjectMapper();

mapper.registerModule(new JavaTimeModule());