1.更改hosts
idea安装完成后，断网，找到hosts文件，位置如下图：
hosts文件中添加下面两项：
0.0.0.0 account.jetbrains.com
0.0.0.0 www.jetbrains.com
2.添加完上面的两项后打开idea在idea的激活码输入位置输入下面的激活码后就完成idea-2019.1的激活了
激活码如下：
N757JE0KCT-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-AE3x5sRpDellY4SmQVy2Pfc2IT7y1JjZFmDA5JtOv4K5gwVdJOLw5YGiOskZTuGu6JhOi50nnd0WaaNZIuVVVx3T5MlXrAuO3kb2qPtLtQ6/n3lp4fIv+6384D4ciEyRWijG7NA9exQx39Tjk7/xqaGk7ooKgq5yquIfIA+r4jlbW8j9gas1qy3uTGUuZQiPB4lv3P5OIpZzIoWXnFwWhy7s//mjOWRZdf/Du3RP518tMk74wizbTeDn84qxbM+giNAn+ovKQRMYHtLyxntBiP5ByzfAA9Baa5TUGW5wDiZrxFuvBAWTbLrRI0Kd7Nb/tB9n1V9uluB2WWIm7iMxDg==-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
注意事项：
从开头的N757 一直复制到最后的 yow==
复制的时候要注意空格，如果多复制了空格会激活失败.
说明:
文章转自:https://blog.csdn.net/yincl123/article/details/89300129