Java 获取当前文件的路径
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Get Path of current file
提问by sportsfan72
How do I get the directory where the a .java file is located? I don't want to use System.getProperty("user.dir"), because that gives me the directory of the executable, and not the directory of the .java file that contains this line of code.
如何获取 .java 文件所在的目录？我不想使用System.getProperty("user.dir")，因为它给了我可执行文件的目录，而不是包含这行代码的 .java 文件的目录。
I need this because I'm developing a JSP web-app, and the Java code creates a .csv file on the server side and I want to make it available on the client side, but I would need to place the csv file where the location of the .html files are so that they could be downloaded.
我需要这个，因为我正在开发一个 JSP web 应用程序，Java 代码在服务器端创建了一个 .csv 文件，我想让它在客户端可用，但我需要将 csv 文件放在.html 文件的位置是可以下载的。
My current folder structure is like:
我当前的文件夹结构是这样的：
Java Resources
->src
->.java file
Java 资源 ->src
->.java 文件
WebContent
->.html file
WebContent
->.html 文件
采纳答案by RamonBoza
Try this for asking for your class
试试这个来询问你的课程
String s = getClass().getName();
int i = s.lastIndexOf(".");
if(i > -1) s = s.substring(i + 1);
s = s + ".class";
System.out.println("name " +s);
Object testPath = this.getClass().getResource(s);
System.out.println(testPath);
this code snippet is from this.getClass().getResource("").getPath() returns an incorrect path
回答by RamonBoza
The source file might as well not exist. Java is a compiled language, it runs compiled files, .java files aren't necessary and thus might not be there at runtime.
源文件也可能不存在。Java 是一种编译语言，它运行编译文件，.java 文件不是必需的，因此在运行时可能不存在。
You can however, get the location of the .class file, as it was previously suggested.
但是，您可以按照之前的建议获取 .class 文件的位置。
