java 工程idea 添加依赖几种方式:
1.add jar and dependecy derictory:

2.add Libary:
点击new library 选取java:

选择libs文件夹作为library:
选择 maven 则从maven官网匹配下载到指定lib文件作为library:
1.add jar and dependecy derictory:

2.add Libary:
点击new library 选取java:

选择libs文件夹作为library:
选择 maven 则从maven官网匹配下载到指定lib文件作为library: