如何在src / main / resources中创建文件

Question

If I do this

fis = new FileInputStream(new File(".").getAbsolutePath() + "/sudoinput.txt");

Its trying to write to this location on the server. I am not sure if this is a writable place.

FILE NAME (fos)::::::::::::::::::/opt/tomcat/temp/./sudoinput.txt
FILE NAME (fis)::::::::::::::::::/opt/tomcat/temp/./sudoinput.txt

I wanted to write to webapps/sudoku/WEB-INF/classes which is basically C:\\Users...\\git\\sudo-project\\sudo\\src\\main\\resources

On Eclipse Windows 7 I get this error src\\main\\resources\\sudoinput.txt (The system cannot find the path specified) if I give

fis = new FileInputStream("src/main/resources/sudoinput.txt");

I have tried this too:

fis = new FileInputStream("src\\main\\resources\\sudoinput.txt");

but doesn't work.

how should I create a fileinputstream to be able to write to src/main/resources ? please note that I am using eclipse windows to do dev and will be uploading the .war file on to a unix server if this changes the way in which the paths need to be specified.

Answer 1

The src/main/resources folder is a folder that is supposed to contain resources for your application. As you noted, maven packages these files to the root of your file so that you can access them in your library.

Have a look at the Maven documentation about the standard directory layout .

In certain cases, it is possible to write to the context but it is not a good idea to try it. Depending on how your webapp is deployed, you might not be able to write into the directory. Consider the case when you deploy a .war archive. This would mean that you try to write into the war archive and this won't be possible.

A better idea would be to use a temporary file . In that way you can be sure this will work, regardless of the way your web application is deployed.

Answer 2

Agree with Sandiip Patil. If you didn't have folder inside your resources then path will be /sudoinput.txt or in folder /folder_name/sudoinput.txt. For getting file from resources you should use YourClass.class.getResource("/filename.txt");

For example

Scanner scanner = new Scanner(TestStats.class.getResourceAsStream("/123.txt"));

or

Scanner scanner = new Scanner(new `FileInputStream(TestStats.class.getResource("/123.txt").getPath()));`

Also look at: this

Answer 3

You can keep the file created under resources and call .class.getresource(your_file_name_or_path_separated_with_forward_slash);

See if it works for you.

Answer 4

如果您想在webapps/sudoku/WEB-INF/classes中创建文件，而该文件最终位于已创建的WAR文件中，则可以通过将所需文件放入src/main/resources/来实现，这意味着您需要创建文件夹src/main/resources并将所需的文件放入此目录。