logback.xml 并从 JetBrains IDEA IDE 运行应用程序
我在IDEA中开发应用程序时，logback.xml应该放在哪里才能对应用程序产生影响？
当您运行/调试 IDEA 时，似乎不会生成任何 jar，也不会调用 Maven 来构建某些内容。它是否直接从编译的 *.class 文件执行 main() ？如果是这样，我应该把logback.xml放在哪里才能生效？
When I develop application in IDEA, where should I place logback.xml for it to have an effect on the application?
It seems when you run/debug IDEA doesn't make any jars and doesn't invoke Maven to build something. Does it execute main() directly from compiled *.class file? If so, where can I put logback.xml so that it would have effect?
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logback.xml应该位于 CLASSPATH 的根目录中。当您运行应用程序时，完整的 CLASSPATH 会在最开始打印。当我将logback.xml放入/src/main/resources（Maven 项目）时，它可以正常工作。还将其以logback-test.xml名称放入/src/test/resources中也存在。只需运行：
并查看它是否返回某些内容或
null。如果您不使用 Maven 项目，请打开项目结构 (Ctrl + Alt + Shift + S）并在模块部分中添加选择包含
logback.xml的文件夹，并将其标记为源（蓝色图标）。logback.xmlshould be available in the root directory of your CLASSPATH. When you run your application, the full CLASSPATH is printed at the very beginning. When I putlogback.xmlin/src/main/resources(Maven project) it works without any problem. Also putting it in/src/test/resourceswithlogback-test.xmlname has presence.Simply run:
And see whether it returns something or
null.If you are not working with Maven project, open Project structure (Ctrl + Alt + Shift + S) and add in Modules section select folder containing
logback.xmland mark it as Sources (blue icon).我需要重新构建项目（不仅仅是重新运行或重新编译项目）。更改 src\main\resources\logback.xml 不会影响 logback，因为类加载器正在选取
target/文件夹中的 logback.xml，而不是/src文件夹。这是有道理的，因为目标是运行环境。因此，需要进行构建才能将新的 xml 文件传输到目标。I needed to re-build the project (not just re-run or re-compile the project). Changing the
src\main\resources\logback.xmldid not affect logback because the class loader is picking up the logback.xml that is in thetarget/folder, not the/srcfolder. This makes sense since target is the run environment. Therefore, a build is required to transfer the new xml file over to target.