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    <p>Send it as request attribut when clicking on button a) Set request attrbute in jsp</p> <pre><code>request.setAttribute("thatobject",thatobject); </code></pre> <p>In Servlet retrive it as </p> <pre><code>Thatobject obj = (ThatObject) request.getAttribute("thatobject"); </code></pre> <p>b) Set the object in session <code>session.setAttribute("thatobject",thatobject)</code> and retrive it as </p> <pre><code>Thatobject obj = (ThatObject) session.getAttribute("thatobject"); </code></pre> <p>Oh my mistake Updated...</p> <p><strong>Note:</strong> Also iam not providing null check. I think you can handle it</p> <p><strong><em>Edit:</em></strong></p> <p>Even you can do other way, which is very sofistiacted way, </p> <p>a) Create a Bean class<br> b) provide Object as a attribute in bean class and provide getter and setter methods too<br> C) in jsp use that bean to set the object when the page is submitting to servlet<br> d) retrive the object from the bean in servelt <br></p> <p><strong>Edit 2:</strong></p> <p>Please check this link there is clear explanation. <a href="http://docs.oracle.com/cd/A97336_01/buslog.102/a83726/basics4.htm#1014142" rel="nofollow noreferrer">JSP2Servlet</a></p> <p><strong><em>Edit 3</em></strong></p> <p>Note : <strong>If you are submiting form , the request becomes new request and the object will become null, when you use request.getattribute in servlet. So above approach will not work on Form submit in jsp.</strong></p> <p>So to overcome this please folw the instructions provide in below link</p> <p><a href="https://stackoverflow.com/questions/4253660/passing-object-from-jsp-to-servlet">Passing Object from JSP to Servlet</a></p>
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    1. CODamodar check the return type of the getParameter method, it will return only a String, so ur snippet will fail. it should be something like this `String userName = request.getParameter("userName");`
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    2. COUpdated Rajesh, my mistake
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    3. COGreat Damodar. Jigar thats the way to do it, if you do not require an updated object.
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