DefaultServlet.java 文件源码

/**
 * Get the readme file as a string.
 */
protected String getReadme(DirContext directory)
    throws IOException, ServletException {

    if (readmeFile != null) {
        try {
            Object obj = directory.lookup(readmeFile);
            if ((obj != null) && (obj instanceof Resource)) {
                StringWriter buffer = new StringWriter();
                InputStream is = ((Resource) obj).streamContent();
                copyRange(new InputStreamReader(is),
                        new PrintWriter(buffer));
                return buffer.toString();
            }
        } catch (NamingException e) {
            if (debug > 10)
                log("readme '" + readmeFile + "' not found", e);

            return null;
        }
    }

    return null;
}