在jar文件中访问文件? [英] Access file in jar file?
问题描述
我需要能够访问存储在已编译的jar文件中的文件。我已经想出如何将文件添加到项目中,但是我将如何在代码中引用它?我如何将文件从jar文件复制到用户硬盘上的某个位置?我知道有很多方法可以访问文件(FileInputStream,FileReader,等等),但我不知道如何查看自己。
I need to be able to access a file stored in a compiled jar file. I have figured out how to add the file to the project, but how would I reference it in the code? How might I copy a file from the jar file to a location on the user's hard drive? I know there are dozens of ways to access a file (FileInputStream, FileReader, ect.), but I don't know how to look inside itself.
推荐答案
您可以使用以下内容:
InputStream is = this.getClass()。getClassLoader()。getResourceAsStream(fileFromJarFile);
如果foo.txt在您的JAR文件的根目录,您将使用:
If foo.txt was in the root of your JAR file, you'd use:
InputStream is = this.getClass()。getClassLoader()。getResourceAsStream(foo。 txt);
假设该类与资源位于同一个JAR文件中,我相信。
assumes the class is in the same JAR file as the resource, I believe.
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