win7 80G的系統盤，隨著使用時間的增加，空間越來越小，只剩不到2G，隨計劃清理系統盤數據
1. maven 下載的jar移動到其它盤，這個比較簡單，這里不做說明
修改maven settings.xml文件目錄根據需要修改，localRepository>D:/m2_repo/repository/localRepository>
2. idea 2019.3，C:\Users\用戶名\.IntelliJIdea2019.3目錄占3.4G，移到其他盤符后發現注冊失效
2. idea 注冊失效解決
關閉所有idea應用
2.1 修改idea安裝目錄配置文件
修改安裝目錄idea 安裝目錄配置文件，bin/idea.properties，目的目錄根據需要修改
# idea.config.path=${user.home}/.IntelliJIdea/config
idea.config.path=D:/idea_config/.IntelliJIdea2019.3/config
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE system folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
# idea.system.path=${user.home}/.IntelliJIdea/system
idea.system.path=D:/idea_config/.IntelliJIdea2019.3/system
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to user installed plugins folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
# idea.plugins.path=${idea.config.path}/plugins
idea.plugins.path=D:/idea_config/.IntelliJIdea2019.3/plugins
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE logs folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
# idea.log.path=${idea.system.path}/log
idea.log.path=D:/idea_config/.IntelliJIdea2019.3/log
