要将 Google Map 嵌入到 Grails 应用程序中，首先要做的是获得一个免费的 API 密匙。
To embed a Google Map in your Grails application, the first thing you need to do is get a free API key.
keystore中的每个私有密匙会被再一次加密，需要额外的密码才能保持密匙的安全性。
Each private key in the keystore is again encrypted, requiring an additional password, in order to help maintain the keys' security.
对于一次性使用，可以更容易地在一个本地临时目录中构建密匙环，生成并交换证书，然后将完成的密匙环文件移动到它们的最终目标位置。
For one-time use, it would be easier to build the keyrings in a local temporary directory, generate and exchange the certificates, and then move the finished keyring files to their final destinations.
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