java - How can I make a link redirect to a servlet? -


this question has answer here:

i have html file following link: 

  <li><a class="active" href="personalinfooutput.java">view personal information</a></li>

when clicks on "view personal information", want redirect servlet, why put:

href="personalinfooutput.java

but not working. returning: 

http status 404 - /payroll/personalinfooutput.java

here personalinfooutput.java servlet

import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.sql.*;  public class personalinfooutput extends httpservlet {      protected void dopost(httpservletrequest request, httpservletresponse response)             throws servletexception, ioexception {         response.setcontenttype("text/html;charset=utf-8");         printwriter out = response.getwriter();          httpsession session = request.getsession(false);         string employeeid = "";          if (session != null) {             employeeid = (string) session.getattribute("employeeid");         }          boolean st = false;         try {             class.forname("com.mysql.jdbc.driver").newinstance();             connection con = drivermanager.getconnection("jdbc:mysql://localhost:3306/payroll_system", "root", "");             preparedstatement ps = con.preparestatement(                     "select employeeid,  firstname, lastname, admin, dob, address, email, hourlyrate, gender, aleavebalance, sleavebalance, activestatus, role, bsb, bankname, accnumber, supernumber, supercompany payroll_system.employee_info employeeid = ?");             ps.setstring(1, employeeid);             resultset rs = ps.executequery();             st = rs.next();             if (st) {                 boolean admintrue = rs.getboolean("admin");                 boolean activetrue = rs.getboolean("activestatus");                  out.println("<html>");                 out.println("<head>");                 out.println("<style>");                 out.println(                         "table { border-collapse: collapse; width: 50%; } th, td { text-align: left; padding: 8px; } tr:nth-child(even){background-color: #f2f2f2}");                 out.println("tr:hover {background-color: #e2f4ff;}");                 out.println("</style>");                 out.println("<link rel = stylesheet type = text/css href = main.css>");                 out.println("<title>personal information</title>");                 out.print("</head>");                  out.println("<body>");                  out.println("<h1>personal information</h1>");                 out.println("<table border =1>");                  out.println("<tr>");                 out.println("<td>name</td>");                 out.println("<td>" + rs.getstring("firstname") + " " + rs.getstring("lastname") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>employee id</td>");                 out.println("<td>" + rs.getstring("employeeid") + "</td>");                 out.println("</tr>");                  if (admintrue) {                     out.println("<tr>");                     out.println("<td>admin</td>");                     out.println("<td>yes</td>");                     out.println("</tr>");                 } else {                     out.println("<tr>");                     out.println("<td>admin</td>");                     out.println("<td>no</td>");                     out.println("</tr>");                 }                  out.println("<tr>");                 out.println("<td>date of birth</td>");                 out.println("<td>" + rs.getstring("dob") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>residential address</td>");                 out.println("<td>" + rs.getstring("address") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>email</td>");                 out.println("<td>" + rs.getstring("email") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>hourly income</td>");                 out.println("<td>" + "$" + rs.getstring("hourlyrate") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>gender</td>");                 out.println("<td>" + rs.getstring("gender") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>annual leave balance</td>");                 out.println("<td>" + rs.getstring("aleavebalance") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>sick leave balance</td>");                 out.println("<td>" + rs.getstring("sleavebalance") + "</td>");                 out.println("</tr>");                  if (activetrue) {                     out.println("<tr>");                     out.println("<td>currently active</td>");                     out.println("<td>yes</td>");                     out.println("</tr>");                 } else {                     out.println("<tr>");                     out.println("<td>currently active</td>");                     out.println("<td>no</td>");                     out.println("</tr>");                 }                  out.println("<tr>");                 out.println("<td>role</td>");                 out.println("<td>" + rs.getstring("role") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>bsb</td>");                 out.println("<td>" + rs.getstring("bsb") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>bank name</td>");                 out.println("<td>" + rs.getstring("bankname") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>bank account number</td>");                 out.println("<td>" + rs.getstring("accnumber") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>superannuation company</td>");                 out.println("<td>" + rs.getstring("supercompany") + "</td>");                 out.println("</tr>");                  out.println("<tr>");                 out.println("<td>superannuation number</td>");                 out.println("<td>" + rs.getstring("supernumber") + "</td>");                 out.println("</tr>");                  out.println("</table>");                 out.println("</body>");                 out.println("</html>");              }         } catch (exception e) {             e.printstacktrace();         }         out.close();     } }

long , winding road waits you.. first of all, if want call server, should have request mapping in method, example: /personal/infooutput/, need pass link html code:

<li><a class="active" href="/personal/infooutput/">view personal information</a></li>

or call servlet:

<li><a class="active" href="personalinfooutput">view personal information</a></li>

currently not have http method, http post, need add too. https status 404 means server didn't find mapping/link. here tutorial: http://tutorials.jenkov.com/java-servlets/index.html


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