java - 如何从 BeanShell 加载文件？

Question

如何将 iterate the directory contents and put each file 放入 List 或其他集合中？

thufir@dur:~/beanshell$ 
thufir@dur:~/beanshell$ bsh list_ebooks.bsh 
ebook files to iterate
rw_ Dec 19   368225 1 - foundation - isaac asimov.epub
rw_ Dec 19   395042 2 - foundation and empire - isaac asimov.epub
rw_ Dec 19   374631 3 - second foundation -  isaac asimov.epub
rw_ Dec 19  2084565 4 - foundation's edge -  isaac asimov.epub
rw_ Dec 19  2125777 5 - foundation and earth -  isaac asimov.epub
rw_ Dec 19  2187662 6 - prelude to foundation -  isaac asimov.epub
rw_ Dec 19  2173565 7 - forward to foundation -  isaac asimov.epub
thufir@dur:~/beanshell$ 
thufir@dur:~/beanshell$ cat list_ebooks.bsh 


print("ebook files to iterate");

dir("/home/thufir/ebooks/foundation/");


thufir@dur:~/beanshell$ 

to bulk convert 格式(尽管 BeanShell 可能有点过头了)。

BeanShell 会加载 文件吗？ fine manual:

Working with Dirctories and Paths BeanShell supports the notion of a current working directory for commands that work with files. The cd() command can be used to change the working directory and pwd() can be used to display the current value. The BeanShell current working directory is stored in the variable bsh.cwd.

All commands that work with files respect the working directory, including the following:

dir()
source()
run(),
cat()
load()
save()
mv()
rm()
addClassPath()

pathToFile() As a convenience for writing your own scripts and commands you can use the pathToFile() command to translate a relative file path to an absolute one relative to the current working directory. Absolute paths are unmodified.

absfilename = pathToFile( filename );

Import apache 文件实用程序？

不能用 streams 来完成。

Answer 1

假设您必须避免流，您可以回到旧的 java.io.File.listFiles()方法:

List<File> result = new ArrayList<>();
File dir = new File("/tmp");
File[] files = dir.listFiles();
if (files != null) {
    for (File f : files) {
        if (f.isFile()) {
            result.add(f);
        }
    }
}
System.out.println(result);