java 入门环境 ​

jdk 下载 ​

• jdk 不同厂商镜像下载下载: https://www.injdk.cn

• jdk8 下载: https://www.oracle.com/java/technologies/downloads/#java8-windows

maven ​

• Apache Maven: http://maven.apache.org/download.cgi 选择 Binary zip archive 进行下载