The jar package in the idea's Pom file cannot be downloaded, the method of manually downloading the jar package

Problem Description:

When adding dependencies in the Pom file, the program is not downloaded and experimented with various ways:

Https://www.cnblogs.com/a8457013/p/7811519.html (may refer to, but I use invalid)

To get no fruit, you can only download to the local warehouse in use it:

Refer to the following blog, you can download the jar package and then install to the local, thank you very much for sharing: I hereby record a pen.

Https://www.cnblogs.com/czy16/p/7569628.html

Http://www.cnblogs.com/tangshengwei/p/6341628.html

The jar package in the idea's Pom file cannot be downloaded, the method of manually downloading the jar package