java 运行 .jar 时 getResourceAsStream 文件路径
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getResourceAsStream filepath while running .jar
提问by user2281673
My code:
我的代码：
BufferedInputStream bis =
new BufferedInputStream(getClass().getResourceAsStream("playerhit.mp3"));
This code works fine when the playerhit.mp3file is in same package as the MP3.classit is running in. I'm running this as .jar. If though I change the file path to something like /src/data/audio/playerhit.mp3it doesn't work anymore. Is there anyway to access different filepath than root of the package while running as .jar?
当playerhit.mp3文件与MP3.class运行的文件在同一个包中时，此代码工作正常。我将它作为 .jar 运行。如果我将文件路径更改为类似的内容，/src/data/audio/playerhit.mp3则它不再起作用。在作为 .jar 运行时，是否可以访问与包根目录不同的文件路径？
回答by mthmulders
Take a look at the Javadoc for getResourceAsStream(...).
查看Javadoc forgetResourceAsStream(...).
If the argument begins with a /, then the absolute name of the resource is the portion of the name following the /. Otherwise, the absolute name is of the following form:
modified_package_name/nameWhere the modified_package_nameis the package name of this object with /substituted for ..
如果参数以 a 开头/，则资源的绝对名称是名称后面的部分/。否则，绝对名称采用以下形式：
modified_package_name/name其中modified_package_name是此对象的包名称，/替换为.。
So, if your playerhit.mp3is in the root of your package structure, you should reference it as /playerhit.mp3. If it's in /src/data/audio/, you should probably use /data/audio/playerhit.mp3- but check the contents of your JAR file to be sure.
因此，如果您playerhit.mp3位于包结构的根目录中，则应将其引用为/playerhit.mp3. 如果它在 中/src/data/audio/，您可能应该使用/data/audio/playerhit.mp3- 但请检查您的 JAR 文件的内容以确保。
回答by Puce
Check first if the file is actually in the jar.
首先检查文件是否确实在 jar 中。
Check the location inside the jar.
检查罐子内的位置。
Relative path: current package
相对路径：当前包
Absolute path: root of jar
绝对路径：jar的根目录
