maven

1.maven:安装及ecplise设置

出处：https://jingyan.baidu.com/article/6b1823098d4499ba58e159e1.html

2.maven下载

出处：https://www.cnblogs.com/zxg-6/p/7674219.html

3、net.sf.json-l

<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<version>2.4</version>
<classifier>jdk15</classifier>
</dependency>