1、停服

./nexus stop

2、进入OrientDB控制台：

cd /apply/nexus3/nexus-3.42.0-01/lib/support/

java -jar ./nexus-orient-console.jar 

3、在控制台执行：

connect plocal:/apply/nexus3/sonatype-work/nexus3/db/security admin admin

4、重置密码为admin123 

update user SET password="$shiro1$SHA-512$1024$NE+wqQq/TmjZMvfI7ENh/g==$V4yPw8T64UQ6GfJfxYq2hLsVrBY8D1v+bktfOxGdt4b/9BthpWPNUy/CBk6V9iA0nHpzYzJFWO8v/tZFtES8CA==" UPSERT WHERE id="admin"

 5、启动nexus服务，然后输入admin/admin123账户登录即可

./nexus start