jar包下载地址（fasterxml.jackson）

Home ? com.fasterxml.jackson ? core

jar包下载地址

https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations

https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core

https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind

 【下载方式】

 javadoc是文档（可选）

sources是源代码（可选）

jar可以通过外部引入加入工程的buildpath