（1）打开安装路径的属性文件
我的安装路径是：D:JetBrainsIntelliJ IDEA 15.0.4，打开路径下的bin文件夹，找到idea.properties文件。
（2）修改属性配置
用notepad++或记事本等打开idea.properties文件，找到配置信息中有${user.home}的字段，如idea.config.path，idea.system.path：
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE config folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
# idea.config.path=${user.home}/.IntelliJIdea/config
#---------------------------------------------------------------------
# Uncomment this option if you want to customize path to IDE system folder. Make sure you're using forward slashes.
#---------------------------------------------------------------------
# idea.system.path=${user.home}/.IntelliJIdea/system
将${user.home}修改成你想存放的路径，注意去掉字段前面的井号”#”：
#--------------------------------------------------------------------- # Uncomment this option if you want to customize path to IDE config folder. Make sure you're using forward slashes. #--------------------------------------------------------------------- idea.config.path=D:/JetBrains/.IntelliJIdea/config #--------------------------------------------------------------------- # Uncomment this option if you want to customize path to IDE system folder. Make sure you're using forward slashes. #--------------------------------------------------------------------- idea.system.path=D:/JetBrains/.IntelliJIdea/system
（３）查看路径
如果路径D:/JetBrains出现文件夹.IntelliJIdea，则说明修改成功。