IntelliJ IDEA 注册码激活
方法一：使用激活服务器激活方法
步骤
1、打开注册/激活窗口；
2、选择 License server；
3、填入上述其中一个网址（如：http://idea.java.sx）；
4、点击Activate即可完美激活!
方法二：注册码激活方法（建议用这种）
1、进入hosts文件中：C:\Windows\System32\drivers\etc\hosts
2、将“0.0.0.0 account.jetbrains.com”添加到hosts文件中
注意：添加只有重新打开hosts文件进行确认之后在进行下一步操作。
修改成功后如图所示：
注：将这条数据加入之后会提示保存，然后确认之后，重新打开hosts文件确认是否添加成功，有时候会提示确认两次。
4、点击获得注册码即可获得IDEA激活码。
激活码（可以百度搜很多的）：
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方法三：本地搭建激活服务器激活方法
1、下载IDEA本地服务器，点我下载(密码jx0m)
2、解压到本地硬盘任意位置，运行相应程序，32位操作系统请双击运行32位程序，64位操作系统请双击运行64位程序，如下图：
3、运行结果如图：
4、打开IDEA，在激活框内输入上图标示的网址即可。
注：在新版本IDEA2017.3中可能会出现无法激活的情况，此时将网址改为http://0.0.0.0:1017即可。
方法四：破解补丁激活方法
（1）破解补丁下载
点我下载(密码jilt)
将下载的破解补丁放在你的安装IDEA下面的bin的目录下面（如图），本文示例为E:\develop-tools\toolsInstall\idea\IntelliJ IDEA 2017.3.4\bin
（2）修改配置文件
在安装的IDEA下面的bin目录下面有2个文件 ： idea.exe.vmoptions和idea64.exe.vmoptions。
用记事本打开，在上述两个文件的最后一行均加上下面这段代码（红色字体部分为你的IDEA安装目录）：
-javaagent:E:\develop-tools\toolsInstall\idea\IntelliJ IDEA 2017.3.4\bin\JetbrainsCrack-2.6.10-release-enc.jar
（3）输入激活码
启动IDEA，第一次进入会提示激活，选择Activation Code，并输入如下激活码：
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（4）软件启动，进入Help，选择About，页面显示December 31，2099到期，完成激活。