get Web App Context Path - Java Servlet JSP

Java examples for Servlet JSP:Servlet

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Description

get Web App Context Path

Demo Code


//package com.java2s;
import java.net.URL;

public class Main {
    public static void main(String[] argv) throws Exception {
        Class clazz = String.class;
        System.out.println(getContextPath(clazz));
    }//from  w w w .ja v a  2  s .c  o m

    static String getContextPath(Class<?> clazz) {
        ClassLoader loader = clazz.getClassLoader();
        if (loader == null)
            return null;
        URL url = loader.getResource("/");
        if (url != null) {
            String[] elements = url.toString().split("/");
            for (int i = elements.length - 1; i > 0; --i) {
                // URLs look like this: file:/.../ImageServer/WEB-INF/classes/
                // And we want that part that's just before WEB-INF
                if ("WEB-INF".equals(elements[i]))
                    return elements[i - 1];

            }
        }
        return null;
    }
}

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