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Source Code for Session Example
import java.io.*;
import java.servlet.*;
import javax.servlet.*;
public class SessionExample extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException
{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
HttpSession session = request.getSession(true);
// print session info
Date created = new Date(session.getCreationTime());
Date accessed = new Date(session.getLastAccessedTime());
out.println("ID " + session.getId());
out.println("Created: " + created);
out.println("Last Accessed: " + accessed);
// set session info if needed
String dataName = request.getParameter("dataName");
if (dataName != null && dateName.length() > 0) {
String dataValue = request.getParameter("dataValue");
session.putValue(dataName, dataValue);
}
// print session contents
String[] valueNames = session.getValueNames();
if (valueNames != null && valueNames.length > 0) {
for (int i = 0; i < valueNames.length; i++) {
String name = valueNames[i];
String value = session.getValue(name).toString();
out.println(name + " = " + value);
}
}
}
}