Lavaweb [first understanding the solution of subsequent problems]

A summary of the problem

1 Each creation maven Project time , You need to modify the user settings file and the local repository

resolvent ： That is to modify the global default configuration

• Remember to check override first
  

2 After creating the project successfully , There are a lot of red mistakes

• resolvent ：
  • maven and idea The reason for the incompatible version of
  • Back to old maven The version will do
  • Modify environment variables , Delete maven file
  • reinstall
  • Please refer to javaweb First time to know

maven In the default project web.xml Version of the problem 【 There may be potential problems without modification 】

• resolvent ： To install tomcat\webapps\ROOT\WEB-INF Paste under directory web.xml Version information in the file