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POdoGet and doPost in Servlets
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Id
2349633
data
AcceptedAnswerId
2349741
AnswerCount
5
ClosedDate
CommentCount
4
CommunityOwnedDate
CreationDate
2010-02-28T01:02:40.793
FavoriteCount
83
LastActivityDate
2017-01-07T17:33:04.730
LastEditDate
2016-08-11T17:42:18.327
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1965524
OwnerUserId
115820
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0
PostTypeId
1
Score
96
ViewCount
362683
LastEditorDisplayName
text
Body
<p>I've developed an HTML page that sends information to a Servlet. In the Servlet, I am using the methods <code>doGet()</code> and <code>doPost()</code>:</p> <pre><code>public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { String id = req.getParameter("realname"); String password = req.getParameter("mypassword"); } public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { String id = req.getParameter("realname"); String password = req.getParameter("mypassword"); } </code></pre> <p>In the html page code that calls the Servlet is:</p> <pre class="lang-html prettyprint-override"><code><form action="identification" method="post" enctype="multipart/form-data"> User Name: <input type="text" name="realname"> Password: <input type="password" name="mypassword"> <input type="submit" value="Identification"> </form> </code></pre> <p>When I use <code>method = "get"</code> in the Servlet, I get the value of id and password, however when using <code>method = "post"</code>, id and password are set to <code>null</code>. Why don't I get the values in this case?</p> <p>Another thing I'd like to know is how to use the data generated or validated by the Servlet. For example, if the Servlet shown above authenticates the user, I'd like to print the user id in my HTML page. I should be able to send the string 'id' as a response and use this info in my HTML page. Is it possible?</p>
Tags
<java><servlets>
Title
doGet and doPost in Servlets
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