Record nexue configuration

1. The current startup and shutdown of nexus, account information and related
    configuration: refer to Chapter 1
Startup : nexus start
View status: nexus status
Close: nexus stop
Account: admin/1
Update: nexus There are two directories as follows, of which sonatype-work Store user information and warehouse information, and the other is [nexus-version number]. Replace the original [nexus-version number] directory with the new version.
Enable maven central repository index download. Enter the maven warehouse configuration page, select true for download remote index, then save, and then select rebuild index to start the download. The download process depends on the network.
Log out the anonymous and Deployment users, that is, set the status to disable in the user settings. For convenience, change the password of the admin user to "1".

2. Addresses and accounts of private warehouses and third-party warehouses
Create warehouses: Thirdparty, IRepo, and add the corresponding crud permissions to the privilege.
(Repository deletion and permission need to restart nexus)
Private repository:
http://127.0.0.1:8081/nexus/content/repositories/ThirdParty/ThirdParty/ThirdParty/ThirdParty
repositories are used to upload such developed by private or private institutions, without official Warehouse components.
http://127.0.0.1:8081/nexus/content/repositories/IRepo/
Personally developed component library and used for deploy
http://127.0.0.1:8081/nexus/content/repositories/central/
maven central warehouse.
Third-party repository:
http://maven.restlet.com/
restlet repository.
Refer to Chapter 5: Custom Proxy Warehouse 3.

User-level settings.xml configuration and description