IDEA的緩存文件夾.IntelliJIdea2017.1，存放着IDEA的破解密碼，各個項目的緩存，默認是在C盤的用戶目錄下，目前有1.5G大小。現在想要把它從C盤移出。
在IDEA的安裝路徑下中，進入bin目錄后找到屬性文件：idea.properties 用記事本打開，找到如下代碼段：
1 #--------------------------------------------------------------------- 2 # Uncomment this option if you want to customize path to IDE config folder. Make sure you're using forward slashes. 3 #--------------------------------------------------------------------- 4 # idea.config.path=${user.home}/.IntelliJIdea/config 5 6 #--------------------------------------------------------------------- 7 # Uncomment this option if you want to customize path to IDE system folder. Make sure you're using forward slashes. 8 #--------------------------------------------------------------------- 9 # idea.system.path=${user.home}/.IntelliJIdea/system 10 11 #--------------------------------------------------------------------- 12 # Uncomment this option if you want to customize path to user installed plugins folder. Make sure you're using forward slashes. 13 #--------------------------------------------------------------------- 14 # idea.plugins.path=${idea.config.path}/plugins
需要注意，在IDEA2017中，默認這些配置是注釋掉的，我在這可吃了大虧，沒想到配置沒有生效的原因是如此簡單。
更改配置文件如下：
1 #--------------------------------------------------------------------- 2 # Uncomment this option if you want to customize path to IDE config folder. Make sure you're using forward slashes. 3 #--------------------------------------------------------------------- 4 idea.config.path=E:/jiashubing/.IntelliJIdea/config 5 6 #--------------------------------------------------------------------- 7 # Uncomment this option if you want to customize path to IDE system folder. Make sure you're using forward slashes. 8 #--------------------------------------------------------------------- 9 idea.system.path=E:/jiashubing/.IntelliJIdea/system 10 11 #--------------------------------------------------------------------- 12 # Uncomment this option if you want to customize path to user installed plugins folder. Make sure you're using forward slashes. 13 #--------------------------------------------------------------------- 14 idea.plugins.path=${idea.config.path}/plugins
更改了以后重啟IDEA，會彈出如下界面Complete Installation，選擇Previous version
此時，在目錄下生成了一個.IntelliJIdea文件
此時把.IntelliJIdea2017.1刪除了也可以，原來的項目也都能找得到
PS：初始緩存文件夾.IntelliJIdea2017.1的來歷，之前安裝的是IDEA2015，那時的緩存文件是.IntelliJIdea，后來將IDEA2015升級成了IDE2017，在同一個目錄下生成了這個.IntelliJIdea2017.1文件夾。可能是IDEA內部的某種設置，如果文件中已經存在了.IntelliJIdea文件，就要在后面增加版本號后綴。