How can I get real path for file in my WebContent folder?

Question

I need to get real path for file in my WebContent directory, so that framework that I use can access that file. It only takes String file as attribute, so I need to get the

Answer 1

you must tell java to change the path from your pc into your java project so if you use spring use :

@Autowired
ServletContext c;

String UPLOAD_FOLDEdR=c.getRealPath("/images"); 

but if you use servlets just use

String UPLOAD_FOLDEdR = ServletContext.getRealPath("/images");  

so the path will be /webapp/images/ :)

Answer 2

my solve for: ..../webapps/mydir/ (..../webapps/ROOT/../mydir/)

String dir = request.getSession().getServletContext().getRealPath("/")+"/../mydir";
            Files.createDirectories(Paths.get(dir));

Answer 3

You could use the Spring Resource interface (and especially the ServletContextResource): http://static.springsource.org/spring/docs/current/javadoc-api/org/springframework/core/io/Resource.html

Answer 4

getServletContext().getRealPath("") - This way will not work if content is being made available from a .war archive. getServletContext() will be null.

In this case we can use another way to get real path. This is example of getting a path to a properties file C:/Program Files/Tomcat 6/webapps/myapp/WEB-INF/classes/somefile.properties:

// URL returned "/C:/Program%20Files/Tomcat%206.0/webapps/myapp/WEB-INF/classes/"
URL r = this.getClass().getResource("/");

// path decoded "/C:/Program Files/Tomcat 6.0/webapps/myapp/WEB-INF/classes/"
String decoded = URLDecoder.decode(r.getFile(), "UTF-8");

if (decoded.startsWith("/")) {
    // path "C:/Program Files/Tomcat 6.0/webapps/myapp/WEB-INF/classes/"
    decoded = decoded.replaceFirst("/", "");
}
File f = new File(decoded, "somefile.properties");

Answer 5

In situations like these I tend to extract the content I need as a resource (MyClass.getClass().getResourceAsStream()), write it as a file to a temporary location and use this file for the other call.

This way I don't have to bother with content that is only contained in jars or is located somewhere depending on the web container I'm currently using.

Answer 6

If you need this in a servlet then use getServletContext().getRealPath("/filepathInContext")!