1.　　下載Interllij IDEA

下載網址：https://www.jetbrains.com/idea/download/#section=windows

選擇自己想用的版本，我是進行WEB開發，選的Ultimate，之後進行安裝即可；

安裝之後需要進行啟用，註冊碼：K03CHKJCFT-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-IJBDUuZMqhMJZfuM8Pgz1WXDRP3k9sKMJXuGdnbwoYDN4Y2G5Xmpw05GZUeESnh2/wzVxTHF4+PQ5ewk+J66F15b50VHSNxFI9XKWatoDfBc9EA1CddWqAU5CaipdMkSHoUDbT69PPGU4Vsfo1HTFv50tQ7RFVYMDbmVhw6mUbTFMvGiu5CZTuEVkmJ+1KpfuyQZvXjS1hXhfbK/xmpMG2/xRmK9lxW9PafZU1dWxqjYU8QBlUYgjdDsDS2apSTE+xFF6y3ZKK/YThpC7IYt5HR5Cc3VGjdb/H7jEAkH2/Uz0PrixPc3Bk5tU01rhxI4Z5VbmmWzGAhWWBtQEqU17A==-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

2.　　匯入已存在的專案；

　　1）如下圖所示：

　　2）找打工程所在地進行匯入；

　　3）按照其預設的選項進行next直至完成

3.　　上述匯入操作完成之後，進行專案的相關配置

　　1） 找到下圖所示的圖示並點選，或者ctrl+alt+shift+s

　　2）開啟之後選擇Project Setting -> Facets,然後點選右下角的Create Artifact，之後在點選apply，進行專案的手工匯入。

　　3) 配置tomcat ,點選Add Configurations,然後點選視窗右上角的"+",選擇Tomcat Server，然後選擇local，進行配置;點選Configurations選擇本地安裝的tomcat目錄，並點選下面的"+"匯入tomcat依賴的庫。

　　4） 點選Deployment,然後點選"+", 之後點選apply

　　5) 之後再匯入專案依賴的jar包，ctrl+alt+shift+s 開啟Project Setting -> Modules -> Dependencies,之後點選"+"進行jar包的匯入

　　6） 這個時候點選執行專案就可以跑起來了

　　7） 設定IntelliJ IDEA預設選擇的瀏覽器，其預設設定的是ie瀏覽器，我因為不喜歡ie瀏覽器，所以設定的為谷歌瀏覽器。點選File -> Settting -> Tools -> Web Browsers, 然後選擇勾選的瀏覽器，並配置預設啟動的瀏覽器配置