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POIs there a right way to build a URL?
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copied!<p>In much of the code I work with there is horrible stuff like:</p> <pre><code>String url = "../Somewhere/SomeServlet?method=AMethod&id="+object.getSomething()+ "&aParam="+object.getSomethingElse()); </code></pre> <p>or - even worse:</p> <pre><code>String url = "Somewhere/Here/Something.jsp?path="+aFile.toString().replace("\\","/")+ "&aParam="+object.getSomethingElse()); </code></pre> <p>Is there a right way to:</p> <ol> <li>Create a new URL (or is it a URI).</li> <li>Add correctly escaped parameters to it.</li> <li>Add well-formed file paths in those params.</li> <li>Resolve it to a String.</li> </ol> <p>Essentially - it is too easy to just build the string than it is to do it properly. Is there a way to do it <em>properly</em> that is as easy as just building the string?</p> <p><strong>Added</strong></p> <p>For clarity - and after a little thought - I suppose I am looking for something like:</p> <pre><code>String s = new MyThing() .setPlace("Somewhere/Something.jsp") .addParameter(aName,aValue) .addParameter(aName,aFile) .toString(); </code></pre> <p>so that it will deal with all of the unpleasantness of escaping and adding "?"/"&" and changing "\" to "/" instead of using "\" for files etc.</p> <p>If I have to write one myself (i.e. if Apache is not an option) are there real Java techniques for correctly escaping the various parts. I mean things like escaping " " in parameters as "." while escaping " " in other places a "%20".</p>

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