Java jar 文件之外的 application.properties 如何
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application.properties outside jar file how to
提问by Gibi
As stated in spring-boot-reference:
On your application classpath (e.g. inside your jar) you can have an application.properties that provides a sensible default property value for name. When running in a new environment, an application.properties can be provided outside of your jar that overrides the name
在您的应用程序类路径上（例如在您的 jar 中），您可以拥有一个 application.properties，它为 name 提供一个合理的默认属性值。在新环境中运行时，可以在 jar 之外提供覆盖名称的 application.properties
I place a duplicated application.properties with overridden name on the same path as jar file, however when running the application with:
我在与 jar 文件相同的路径上放置了一个具有覆盖名称的重复 application.properties，但是在运行应用程序时：
java -jar target/myproject-0.0.1-SNAPSHOT.jar
The name value is not overridden, it still refers to the one inside application.properties inside jar file. I also tried:
name 值没有被覆盖，它仍然指的是 jar 文件中 application.properties 中的那个。我也试过：
java -Dspring.config.location=/target/application.properties -jar target/myproject-0.0.1-SNAPSHOT.jar
But it does not work, please help.
但它不起作用，请帮助。
Edit
编辑
When I change the current directory to targetand run it, it works.
当我将当前目录更改为target并运行它时，它可以工作。
java -jar myproject-0.0.1-SNAPSHOT.jar
Why? Why cannot be outside the path and run it?
为什么？为什么不能在路径之外运行它？
采纳答案by alexbt
It doesn't work because you are trying to launch the jar from another folder: spring boot looks for files/folder relative your current folder.
它不起作用，因为您正在尝试从另一个文件夹启动 jar：spring boot 查找相对于您当前文件夹的文件/文件夹。
You can:
你可以：
1) copy application.propertieseither in ./or ./config/, relative to your current folder.
1)相对于您的当前文件夹，application.properties在./或 中复制./config/。
2) Or specify -Dspring.config.location:
2) 或指定-Dspring.config.location：
$ java -Dspring.config.location=target/application.properties -jar target/myproject-0.0.1-SNAPSHOT.jar
回答by Magnus
You spelt configas conig, should work if you spell it right.
您拼写config为conig，如果拼写正确，应该可以使用。
