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copied!<p>I have written this up, you can change it where you want extra functionality. It doesn't use any external resources, let me know if I have looked over something!</p> <p>It's basically a wrapper for the <code>URI</code> class that allows you to more easily add subdirectories and parameters to the URI. You can set default values if you're not interested in some things.</p> <p>Edit: I have added an option to use a relative URI (per your question).</p> <pre><code>public class Test { public static void main(String[] args) throws URISyntaxException, MalformedURLException { URLBuilder urlb = new URLBuilder("www.example.com"); urlb.setConnectionType("http"); urlb.addSubfolder("somesub"); urlb.addSubfolder("anothersub"); urlb.addParameter("param lol", "unknown"); urlb.addParameter("paramY", "known"); String url = urlb.getURL(); System.out.println(url); urlb = new URLBuilder(); urlb.addSubfolder("servlet"); urlb.addSubfolder("jsp"); urlb.addSubfolder("somesub"); urlb.addSubfolder("anothersub"); urlb.addParameter("param lol", "unknown"); urlb.addParameter("paramY", "known"); String relUrl = urlb.getRelativeURL(); System.out.println(relUrl); } } class URLBuilder { private StringBuilder folders, params; private String connType, host; void setConnectionType(String conn) { connType = conn; } URLBuilder(){ folders = new StringBuilder(); params = new StringBuilder(); } URLBuilder(String host) { this(); this.host = host; } void addSubfolder(String folder) { folders.append("/"); folders.append(folder); } void addParameter(String parameter, String value) { if(params.toString().length() > 0){params.append("&");} params.append(parameter); params.append("="); params.append(value); } String getURL() throws URISyntaxException, MalformedURLException { URI uri = new URI(connType, host, folders.toString(), params.toString(), null); return uri.toURL().toString(); } String getRelativeURL() throws URISyntaxException, MalformedURLException{ URI uri = new URI(null, null, folders.toString(), params.toString(), null); return uri.toString(); } } </code></pre> <p>Output:</p> <p><strong>Absolute</strong> </p> <blockquote> <p><a href="http://www.example.com/somesub/anothersub?param%20lol=unknown&paramY=known" rel="nofollow">http://www.example.com/somesub/anothersub?param%20lol=unknown&paramY=known</a></p> </blockquote> <p><strong>Relative</strong> </p> <blockquote> <p>/servlet/jsp/somesub/anothersub?param%20lol=unknown&paramY=known</p> </blockquote>

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