CODEWITHSUNDEEP
javaxmlservlets
Usi Usi
Usi Usi

Reputation: 2997

Read an xml file from a servlet

I can't load correctly a file xml from my servlet: that's the code:

       try{

           DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
           DocumentBuilder db = dbf.newDocumentBuilder();
           Document doc = db.parse("db.xml");
       } catch (Exception ex) {
       ex.printStackTrace();
           out.print("File Not Found!");
   }

the db.xml is inside the classes folder with the class and the java file...

Upvotes: 2

Views: 5245

Answers (2)

Paul Vargas
Paul Vargas

Reputation: 42060

If you have the XML file in the root folder of the war file, you can read it using the real path for the context application folder.

String contextPath = request.getSession().getServletContext().getRealPath("/");

In another way, you can use the context class loader in a multi-module environment:

ClassLoader classloader = Thread.currentThread().getContextClassLoader()
Document doc = db.parse(classloader.getResourceAsStream(contextPath+ "/db.xml"));

In some environments, the additional slash is not necessary.

Upvotes: 1

Boris the Spider
Boris the Spider

Reputation: 61198

You need to use getResourceAsStream()

    try {
        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = dbf.newDocumentBuilder();
        Document doc = db.parse(getClass().getResourceAsStream("db.xml"));
    } catch (Exception ex) {
        ex.printStackTrace();
        out.print("File Not Found!");
    }

Upvotes: 3

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