Web Crawling with Spring Batch

Question

I have a crawl function that also checks whether the content contains the param. If it contains I will write that to the database. How can I use the following code as a Read Job for the spring batch?

public void crawl(String baseUrl, String url, String postgresParam) {
    if (!urls.contains(url) && url.startsWith(baseUrl)) {

        // System.out.println(">> count: " + count + " [" + url + "]");
        urls.add(url);

        try {
            Connection connection = Jsoup.connect(url).userAgent(USER_AGENT);
            Document htmlDocument = connection.get();

            Elements linksOnPage = htmlDocument.select("a[href]");

            bodyContent = htmlDocument.body().text();
            String title = htmlDocument.title();

            searchParameters(url, title);

            // count++;

            for (Element link : linksOnPage) {
                crawl(baseUrl, link.absUrl("href"), postgresParam);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

private void searchParameters(String URL, String title) {
    for (String param : postgresParamArray) {
        if (bodyContent.toLowerCase().contains(param.toLowerCase())) {
            System.out.println(">>>>>> Found: " + " [" + param + "]" + " [" + URL + "]" + " [" + title + "]");
        }
    }
}