ntelliJ IDEA号称当前Java开发效率最高的IDE工具。IntelliJ IDEA有两个版本：社区版(Community)和旗舰版(Ultimate)。社区版时免费的、开源的，但功能较少，旗舰版提供了较多的功能，是收费的，可以试用30天。 
IntelliJ IDEA官网：https://www.jetbrains.com

下面来说一下IntelliJ IDEA旗舰版注册方法。

一、下载IntelliJ IDEA的Ultimate版本

IntelliJ IDEA下载地址：https://www.jetbrains.com/idea/

二、启动IntelliJ IDEA并注册

方法一：启动时注册(适合首次启动时)

首次运行启动IntelliJ IDEA，会弹出注册页面，选择注册Activate，通过Activation code注册码注册，如下图： 
 
然后将注册码(见第三部分)粘贴到上面注册码区域，点击ok即可。

方法二：启动完之后再注册

首次启动时弹出注册页面，直接选择试用免费版(Evaluate for free)打开工具，如下图： 
 
如果以前已经点击过试用，之后启动不会再弹出上面的对话框。 


打开IntelliJ IDEA工具后，点击工具栏上的Help–>Register…，如下：

在弹出的对话框里选择通过注册码方式注册，如下图：

将注册码(见第三部分)粘贴到下面注册码区域，点击ok即可，右下角会出现成功提示，如下：

注册码

这是从网上生成的一个注册码，将下面的注册码直接复制粘贴进去即可。 
注册码有效期为2017年01月31日至2018年01月30日 
使用时需要将“0.0.0.0 account.jetbrains.com”添加到hosts文件中

CNEKJPQZEX-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-QOxwjWvRwJz6vo6J6adC3CJ4ukQHosbPYZ94URUVFna/Rbew8xK/M5gP3kAaPh6ZDveFdtMR1UBoumq3eCwXtXM3U3ls5noB4LIr+QplVlCj2pK5uNq7g/feyNyQcHpSXtvhIOnXDBLOecB05DOsxzm0p7ulGGJoAInmHeb9mc0eYjqc4RPpUQfh6HSYBnvEnKMlLF5bz4KEtzmsvvgA55CwzwQ3gRitm5Q/wUT7AQCBdjmBfNUjKVQL6TSjSDPp56FUdEs4Aab8LqstA2DIMbxocO64rvytmcUeIwu8Mi5uq87KQP5AQMSMYb59Inbd+dmVfx5cJo3fRS4/5s3/Hg==-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提示

20170425早上上班打开idea，发现提示This license BIG3CLIK6F has bean cancelled.如下： 
 
解决方法：打开C:\Windows\System32\drivers\etc\hosts文件，添加一行

0.0.0.0 account.jetbrains.com
 
  

   
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破解补丁方式

破解补丁方式参考：IntelliJ IDEA 2017 注册方法

也可以从网上生成注册码http://idea.lanyus.com/