IntelliJ IDEA號稱當前Java開發效率最高的IDE工具。IntelliJ IDEA有兩個版本：社群版(Community)和旗艦版(Ultimate)。社群版時免費的、開源的，但功能較少，旗艦版提供了較多的功能，是收費的，可以試用30天。 
IntelliJ IDEA官網：https://www.jetbrains.com

下面來說一下IntelliJ IDEA旗艦版註冊方法。

一、下載IntelliJ IDEA的Ultimate版本

二、啟動IntelliJ IDEA並註冊

方法一：啟動時註冊(適合首次啟動時)

首次執行啟動IntelliJ IDEA，會彈出註冊頁面，選擇註冊Activate，通過Activation code註冊碼註冊，如下圖： 

方法二：啟動完之後再註冊

首次啟動時彈出註冊頁面，直接選擇試用免費版(Evaluate for free)開啟工具，如下圖： 
 
如果以前已經點選過試用，之後啟動不會再彈出上面的對話方塊。 


開啟IntelliJ IDEA工具後，點選工具欄上的Help–>Register…，如下：

在彈出的對話方塊裡選擇通過註冊碼方式註冊，如下圖：

將註冊碼(見第三部分)貼上到下面註冊碼區域，點選ok即可，右下角會出現成功提示，如下：

註冊碼

這是從網上生成的一個註冊碼，將下面的註冊碼直接複製貼上進去即可。 
註冊碼有效期為2017年01月31日至2018年01月30日 
使用時需要將“0.0.0.0 account.jetbrains.com”新增到hosts檔案中

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• 1

提示

20170425早上上班開啟idea，發現提示This license BIG3CLIK6F has bean cancelled.如下： 
 
解決方法：開啟C:\Windows\System32\drivers\etc\hosts檔案，新增一行

0.0.0.0 account.jetbrains.com

• 1

破解補丁方式

我本人IDEA版本用的是2018最新版，修改HOST檔案後親測可用：

      我使用的註冊碼是下面這個：

K71U8DBPNE-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-Owt3/+LdCpedvF0eQ8635yYt0+ZLtCfIHOKzSrx5hBtbKGYRPFDrdgQAK6lJjexl2emLBcUq729K1+ukY9Js0nx1NH09l9Rw4c7k9wUksLl6RWx7Hcdcma1AHolfSp79NynSMZzQQLFohNyjD+dXfXM5GYd2OTHya0zYjTNMmAJuuRsapJMP9F1z7UTpMpLMxS/JaCWdyX6qIs+funJdPF7bjzYAQBvtbz+6SANBgN36gG1B2xHhccTn6WE8vagwwSNuM70egpahcTktoHxI7uS1JGN9gKAr6nbp+8DbFz3a2wd+XoF3nSJb/d2f/6zJR8yJF8AOyb30kwg3zf5cWw==-MIIEPjCCAiagAwIBAgIBBTANBgkqhkiG9w0BAQsFADAYMRYwFAYDVQQDDA1KZXRQcm9maWxlIENBMB4XDTE1MTEwMjA4MjE0OFoXDTE4MTEwMTA4MjE0OFowETEPMA0GA1UEAwwGcHJvZDN5MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxcQkq+zdxlR2mmRYBPzGbUNdMN6OaXiXzxIWtMEkrJMO/5oUfQJbLLuMSMK0QHFmaI37WShyxZcfRCidwXjot4zmNBKnlyHodDij/78TmVqFl8nOeD5+07B8VEaIu7c3E1N+e1doC6wht4I4+IEmtsPAdoaj5WCQVQbrI8KeT8M9VcBIWX7fD0fhexfg3ZRt0xqwMcXGNp3DdJHiO0rCdU+Itv7EmtnSVq9jBG1usMSFvMowR25mju2JcPFp1+I4ZI+FqgR8gyG8oiNDyNEoAbsR3lOpI7grUYSvkB/xVy/VoklPCK2h0f0GJxFjnye8NT1PAywoyl7RmiAVRE/EKwIDAQABo4GZMIGWMAkGA1UdEwQCMAAwHQYDVR0OBBYEFGEpG9oZGcfLMGNBkY7SgHiMGgTcMEgGA1UdIwRBMD+AFKOetkhnQhI2Qb1t4Lm0oFKLl/GzoRykGjAYMRYwFAYDVQQDDA1KZXRQcm9maWxlIENBggkA0myxg7KDeeEwEwYDVR0lBAwwCgYIKwYBBQUHAwEwCwYDVR0PBAQDAgWgMA0GCSqGSIb3DQEBCwUAA4ICAQC9WZuYgQedSuOc5TOUSrRigMw4/+wuC5EtZBfvdl4HT/8vzMW/oUlIP4YCvA0XKyBaCJ2iX+ZCDKoPfiYXiaSiH+HxAPV6J79vvouxKrWg2XV6ShFtPLP+0gPdGq3x9R3+kJbmAm8w+FOdlWqAfJrLvpzMGNeDU14YGXiZ9bVzmIQbwrBA+c/F4tlK/DV07dsNExihqFoibnqDiVNTGombaU2dDup2gwKdL81ua8EIcGNExHe82kjF4zwfadHk3bQVvbfdAwxcDy4xBjs3L4raPLU3yenSzr/OEur1+jfOxnQSmEcMXKXgrAQ9U55gwjcOFKrgOxEdek/Sk1VfOjvS+nuM4eyEruFMfaZHzoQiuw4IqgGc45ohFH0UUyjYcuFxxDSU9lMCv8qdHKm+wnPRb0l9l5vXsCBDuhAGYD6ss+Ga+aDY6f/qXZuUCEUOH3QUNbbCUlviSz6+GiRnt1kA9N2Qachl+2yBfaqUqr8h7Z2gsx5LcIf5kYNsqJ0GavXTVyWh7PYiKX4bs354ZQLUwwa/cG++2+wNWP+HtBhVxMRNTdVhSm38AknZlD+PTAsWGu9GyLmhti2EnVwGybSD2Dxmhxk3IPCkhKAK+pl0eWYGZWG3tJ9mZ7SowcXLWDFAk0lRJnKGFMTggrWjV8GYpw5bq23VmIqqDLgkNzuoog==