On Servlet the values are null when Post method is used but when Get method is used then its fine












0















i am using jsp page to insert some value but when the parameters get to the servelet the values received are null when I am using Post method but when Get method is used then it works fine.

request.getParameter() is returning null value when post method is used but when get method is used it works fine and the values get inserted



anyone have idea how to fix this???



//Jsp Page



    <%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="insert.css">
<title>Database Update</title>
</head>
<body>
<h1 class="main-header">Enter the Details</h1>
<div class="fullbody">

<form action="Insert" method="post" enctype="multipart/form-data">
<div class="text">
<b>Stuid:</b>
<input type="text" placeholder="stuid" name="stuid" pattern=[0-9]{1,} title="can only have numeric value" required>
<b>Student Name:</b>
<input type="text" placeholder="student name" name="name" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
<b>Student Mobile no.:</b>
<input type="text" placeholder="student mobile no." name="stumob" pattern=[0-9]{10} title="10 digit number" required>
<br>
<b>Father's Name:</b>
<input type="text" placeholder="Father's name" name="fname" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
<b>Father's Mobile no.:</b>
<input type="text" placeholder="father's mobile no." name="fmob" pattern=[0-9]{10} title="10 digit number" required>
<br>
<b>Mother's Name:</b>
<input type="text" placeholder="Mother's name" name="mname" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
<b>Gender:</b>
<input type="radio" value="male" name="gender" required> Male
<input type="radio" value="female" name="gender"> Female
<b>Date of Birth:</b>
<input type="date" placeholder="dd/mm/yyyy" name="dob" required>
<b>Address:</b>
<input type="text" placeholder="address" name="addr" required>
<br>
<b>Programme:</b>
<select name="programme">
<option value="B.tech">B.tech</option>
<option value="M.tech">M.tech</option>
<option value="BBA">BBA</option>
<option value="BCA">BCA</option>
</select>
<b>Branch Code:</b>
<input type="text" placeholder="branch code" name="branch" pattern=[A-Za-z]{3,6} title="can only have alphabet" required>
<b>Year:</b>
<select name="year">
<option value="1st">1st</option>
<option value="2nd">2nd</option>
<option value="3rd">3rd</option>
<option value="4th">4th</option>
</select>
<br>
<b>Photo Upload:</b>
<input type="file" name="photo" required>
</div>
<div class="submit">
<input type="Submit" value="Submit">
</div>
</form>
</div>
</body>
</html>


//servlet

package java_app1;

import java.io.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


public class Insert extends HttpServlet {
private static final long serialVersionUID = 1L;

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
String stuid=request.getParameter("stuid");
String name=request.getParameter("name");
String stumob=request.getParameter("stumob");
String fname=request.getParameter("fname");
String fmob=request.getParameter("fmob");
String mname=request.getParameter("mname");
String gender=request.getParameter("gender");
String dob=request.getParameter("dob");
String addr=request.getParameter("addr");
String programme=request.getParameter("programme");
String branch=request.getParameter("branch");
String year=request.getParameter("year");
String photo=request.getParameter("photo");

PrintWriter out=response.getWriter();
out.println(stuid);

try{
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","ankit");
PreparedStatement ps=con.prepareStatement("insert into student.stulog values (?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
ps.setString(1,stuid);
ps.setString(2,fmob);
ps.setString(3,name);
ps.setString(4,stumob);
ps.setString(5,fname);
ps.setString(6,fmob);
ps.setString(7,mname);
ps.setString(8,gender);
ps.setString(9,dob);
ps.setString(10,addr);
ps.setString(11,programme);
ps.setString(12,year);
ps.setString(13,branch);
ps.setString(14,photo);
int rs=ps.executeUpdate();
if(rs!=0)
{
out.println("[SUCCESS] RECORDS INSERTED SCUCCESSFULLY");
RequestDispatcher rd=request.getRequestDispatcher("/dashboard.jsp");
rd.include(request, response);
}
else
{
out.println("[FAILURE] RECORDS NOT INSERTED");
RequestDispatcher rd=request.getRequestDispatcher("/dashboard.jsp");
rd.include(request, response);
}
}catch (Exception e)
{
out.println("Error:"+e);
e.printStackTrace();
}
}

}









share|improve this question



























    0















    i am using jsp page to insert some value but when the parameters get to the servelet the values received are null when I am using Post method but when Get method is used then it works fine.

    request.getParameter() is returning null value when post method is used but when get method is used it works fine and the values get inserted



    anyone have idea how to fix this???



    //Jsp Page



        <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <link rel="stylesheet" href="insert.css">
    <title>Database Update</title>
    </head>
    <body>
    <h1 class="main-header">Enter the Details</h1>
    <div class="fullbody">

    <form action="Insert" method="post" enctype="multipart/form-data">
    <div class="text">
    <b>Stuid:</b>
    <input type="text" placeholder="stuid" name="stuid" pattern=[0-9]{1,} title="can only have numeric value" required>
    <b>Student Name:</b>
    <input type="text" placeholder="student name" name="name" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
    <b>Student Mobile no.:</b>
    <input type="text" placeholder="student mobile no." name="stumob" pattern=[0-9]{10} title="10 digit number" required>
    <br>
    <b>Father's Name:</b>
    <input type="text" placeholder="Father's name" name="fname" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
    <b>Father's Mobile no.:</b>
    <input type="text" placeholder="father's mobile no." name="fmob" pattern=[0-9]{10} title="10 digit number" required>
    <br>
    <b>Mother's Name:</b>
    <input type="text" placeholder="Mother's name" name="mname" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
    <b>Gender:</b>
    <input type="radio" value="male" name="gender" required> Male
    <input type="radio" value="female" name="gender"> Female
    <b>Date of Birth:</b>
    <input type="date" placeholder="dd/mm/yyyy" name="dob" required>
    <b>Address:</b>
    <input type="text" placeholder="address" name="addr" required>
    <br>
    <b>Programme:</b>
    <select name="programme">
    <option value="B.tech">B.tech</option>
    <option value="M.tech">M.tech</option>
    <option value="BBA">BBA</option>
    <option value="BCA">BCA</option>
    </select>
    <b>Branch Code:</b>
    <input type="text" placeholder="branch code" name="branch" pattern=[A-Za-z]{3,6} title="can only have alphabet" required>
    <b>Year:</b>
    <select name="year">
    <option value="1st">1st</option>
    <option value="2nd">2nd</option>
    <option value="3rd">3rd</option>
    <option value="4th">4th</option>
    </select>
    <br>
    <b>Photo Upload:</b>
    <input type="file" name="photo" required>
    </div>
    <div class="submit">
    <input type="Submit" value="Submit">
    </div>
    </form>
    </div>
    </body>
    </html>


    //servlet

    package java_app1;

    import java.io.*;
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.PreparedStatement;

    import javax.servlet.RequestDispatcher;
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;


    public class Insert extends HttpServlet {
    private static final long serialVersionUID = 1L;

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    response.setContentType("text/html");
    String stuid=request.getParameter("stuid");
    String name=request.getParameter("name");
    String stumob=request.getParameter("stumob");
    String fname=request.getParameter("fname");
    String fmob=request.getParameter("fmob");
    String mname=request.getParameter("mname");
    String gender=request.getParameter("gender");
    String dob=request.getParameter("dob");
    String addr=request.getParameter("addr");
    String programme=request.getParameter("programme");
    String branch=request.getParameter("branch");
    String year=request.getParameter("year");
    String photo=request.getParameter("photo");

    PrintWriter out=response.getWriter();
    out.println(stuid);

    try{
    Class.forName("com.mysql.jdbc.Driver");
    Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","ankit");
    PreparedStatement ps=con.prepareStatement("insert into student.stulog values (?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
    ps.setString(1,stuid);
    ps.setString(2,fmob);
    ps.setString(3,name);
    ps.setString(4,stumob);
    ps.setString(5,fname);
    ps.setString(6,fmob);
    ps.setString(7,mname);
    ps.setString(8,gender);
    ps.setString(9,dob);
    ps.setString(10,addr);
    ps.setString(11,programme);
    ps.setString(12,year);
    ps.setString(13,branch);
    ps.setString(14,photo);
    int rs=ps.executeUpdate();
    if(rs!=0)
    {
    out.println("[SUCCESS] RECORDS INSERTED SCUCCESSFULLY");
    RequestDispatcher rd=request.getRequestDispatcher("/dashboard.jsp");
    rd.include(request, response);
    }
    else
    {
    out.println("[FAILURE] RECORDS NOT INSERTED");
    RequestDispatcher rd=request.getRequestDispatcher("/dashboard.jsp");
    rd.include(request, response);
    }
    }catch (Exception e)
    {
    out.println("Error:"+e);
    e.printStackTrace();
    }
    }

    }









    share|improve this question

























      0












      0








      0








      i am using jsp page to insert some value but when the parameters get to the servelet the values received are null when I am using Post method but when Get method is used then it works fine.

      request.getParameter() is returning null value when post method is used but when get method is used it works fine and the values get inserted



      anyone have idea how to fix this???



      //Jsp Page



          <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
      <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
      <html>
      <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <link rel="stylesheet" href="insert.css">
      <title>Database Update</title>
      </head>
      <body>
      <h1 class="main-header">Enter the Details</h1>
      <div class="fullbody">

      <form action="Insert" method="post" enctype="multipart/form-data">
      <div class="text">
      <b>Stuid:</b>
      <input type="text" placeholder="stuid" name="stuid" pattern=[0-9]{1,} title="can only have numeric value" required>
      <b>Student Name:</b>
      <input type="text" placeholder="student name" name="name" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
      <b>Student Mobile no.:</b>
      <input type="text" placeholder="student mobile no." name="stumob" pattern=[0-9]{10} title="10 digit number" required>
      <br>
      <b>Father's Name:</b>
      <input type="text" placeholder="Father's name" name="fname" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
      <b>Father's Mobile no.:</b>
      <input type="text" placeholder="father's mobile no." name="fmob" pattern=[0-9]{10} title="10 digit number" required>
      <br>
      <b>Mother's Name:</b>
      <input type="text" placeholder="Mother's name" name="mname" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
      <b>Gender:</b>
      <input type="radio" value="male" name="gender" required> Male
      <input type="radio" value="female" name="gender"> Female
      <b>Date of Birth:</b>
      <input type="date" placeholder="dd/mm/yyyy" name="dob" required>
      <b>Address:</b>
      <input type="text" placeholder="address" name="addr" required>
      <br>
      <b>Programme:</b>
      <select name="programme">
      <option value="B.tech">B.tech</option>
      <option value="M.tech">M.tech</option>
      <option value="BBA">BBA</option>
      <option value="BCA">BCA</option>
      </select>
      <b>Branch Code:</b>
      <input type="text" placeholder="branch code" name="branch" pattern=[A-Za-z]{3,6} title="can only have alphabet" required>
      <b>Year:</b>
      <select name="year">
      <option value="1st">1st</option>
      <option value="2nd">2nd</option>
      <option value="3rd">3rd</option>
      <option value="4th">4th</option>
      </select>
      <br>
      <b>Photo Upload:</b>
      <input type="file" name="photo" required>
      </div>
      <div class="submit">
      <input type="Submit" value="Submit">
      </div>
      </form>
      </div>
      </body>
      </html>


      //servlet

      package java_app1;

      import java.io.*;
      import java.sql.Connection;
      import java.sql.DriverManager;
      import java.sql.PreparedStatement;

      import javax.servlet.RequestDispatcher;
      import javax.servlet.ServletException;
      import javax.servlet.http.HttpServlet;
      import javax.servlet.http.HttpServletRequest;
      import javax.servlet.http.HttpServletResponse;


      public class Insert extends HttpServlet {
      private static final long serialVersionUID = 1L;

      protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
      response.setContentType("text/html");
      String stuid=request.getParameter("stuid");
      String name=request.getParameter("name");
      String stumob=request.getParameter("stumob");
      String fname=request.getParameter("fname");
      String fmob=request.getParameter("fmob");
      String mname=request.getParameter("mname");
      String gender=request.getParameter("gender");
      String dob=request.getParameter("dob");
      String addr=request.getParameter("addr");
      String programme=request.getParameter("programme");
      String branch=request.getParameter("branch");
      String year=request.getParameter("year");
      String photo=request.getParameter("photo");

      PrintWriter out=response.getWriter();
      out.println(stuid);

      try{
      Class.forName("com.mysql.jdbc.Driver");
      Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","ankit");
      PreparedStatement ps=con.prepareStatement("insert into student.stulog values (?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
      ps.setString(1,stuid);
      ps.setString(2,fmob);
      ps.setString(3,name);
      ps.setString(4,stumob);
      ps.setString(5,fname);
      ps.setString(6,fmob);
      ps.setString(7,mname);
      ps.setString(8,gender);
      ps.setString(9,dob);
      ps.setString(10,addr);
      ps.setString(11,programme);
      ps.setString(12,year);
      ps.setString(13,branch);
      ps.setString(14,photo);
      int rs=ps.executeUpdate();
      if(rs!=0)
      {
      out.println("[SUCCESS] RECORDS INSERTED SCUCCESSFULLY");
      RequestDispatcher rd=request.getRequestDispatcher("/dashboard.jsp");
      rd.include(request, response);
      }
      else
      {
      out.println("[FAILURE] RECORDS NOT INSERTED");
      RequestDispatcher rd=request.getRequestDispatcher("/dashboard.jsp");
      rd.include(request, response);
      }
      }catch (Exception e)
      {
      out.println("Error:"+e);
      e.printStackTrace();
      }
      }

      }









      share|improve this question














      i am using jsp page to insert some value but when the parameters get to the servelet the values received are null when I am using Post method but when Get method is used then it works fine.

      request.getParameter() is returning null value when post method is used but when get method is used it works fine and the values get inserted



      anyone have idea how to fix this???



      //Jsp Page



          <%@ page language="java" contentType="text/html; charset=UTF-8"
      pageEncoding="UTF-8"%>
      <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
      <html>
      <head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
      <link rel="stylesheet" href="insert.css">
      <title>Database Update</title>
      </head>
      <body>
      <h1 class="main-header">Enter the Details</h1>
      <div class="fullbody">

      <form action="Insert" method="post" enctype="multipart/form-data">
      <div class="text">
      <b>Stuid:</b>
      <input type="text" placeholder="stuid" name="stuid" pattern=[0-9]{1,} title="can only have numeric value" required>
      <b>Student Name:</b>
      <input type="text" placeholder="student name" name="name" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
      <b>Student Mobile no.:</b>
      <input type="text" placeholder="student mobile no." name="stumob" pattern=[0-9]{10} title="10 digit number" required>
      <br>
      <b>Father's Name:</b>
      <input type="text" placeholder="Father's name" name="fname" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
      <b>Father's Mobile no.:</b>
      <input type="text" placeholder="father's mobile no." name="fmob" pattern=[0-9]{10} title="10 digit number" required>
      <br>
      <b>Mother's Name:</b>
      <input type="text" placeholder="Mother's name" name="mname" pattern="[A-Za-z ]{1,45}" title="can only have alphabet and space" required>
      <b>Gender:</b>
      <input type="radio" value="male" name="gender" required> Male
      <input type="radio" value="female" name="gender"> Female
      <b>Date of Birth:</b>
      <input type="date" placeholder="dd/mm/yyyy" name="dob" required>
      <b>Address:</b>
      <input type="text" placeholder="address" name="addr" required>
      <br>
      <b>Programme:</b>
      <select name="programme">
      <option value="B.tech">B.tech</option>
      <option value="M.tech">M.tech</option>
      <option value="BBA">BBA</option>
      <option value="BCA">BCA</option>
      </select>
      <b>Branch Code:</b>
      <input type="text" placeholder="branch code" name="branch" pattern=[A-Za-z]{3,6} title="can only have alphabet" required>
      <b>Year:</b>
      <select name="year">
      <option value="1st">1st</option>
      <option value="2nd">2nd</option>
      <option value="3rd">3rd</option>
      <option value="4th">4th</option>
      </select>
      <br>
      <b>Photo Upload:</b>
      <input type="file" name="photo" required>
      </div>
      <div class="submit">
      <input type="Submit" value="Submit">
      </div>
      </form>
      </div>
      </body>
      </html>


      //servlet

      package java_app1;

      import java.io.*;
      import java.sql.Connection;
      import java.sql.DriverManager;
      import java.sql.PreparedStatement;

      import javax.servlet.RequestDispatcher;
      import javax.servlet.ServletException;
      import javax.servlet.http.HttpServlet;
      import javax.servlet.http.HttpServletRequest;
      import javax.servlet.http.HttpServletResponse;


      public class Insert extends HttpServlet {
      private static final long serialVersionUID = 1L;

      protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
      response.setContentType("text/html");
      String stuid=request.getParameter("stuid");
      String name=request.getParameter("name");
      String stumob=request.getParameter("stumob");
      String fname=request.getParameter("fname");
      String fmob=request.getParameter("fmob");
      String mname=request.getParameter("mname");
      String gender=request.getParameter("gender");
      String dob=request.getParameter("dob");
      String addr=request.getParameter("addr");
      String programme=request.getParameter("programme");
      String branch=request.getParameter("branch");
      String year=request.getParameter("year");
      String photo=request.getParameter("photo");

      PrintWriter out=response.getWriter();
      out.println(stuid);

      try{
      Class.forName("com.mysql.jdbc.Driver");
      Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/student","root","ankit");
      PreparedStatement ps=con.prepareStatement("insert into student.stulog values (?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
      ps.setString(1,stuid);
      ps.setString(2,fmob);
      ps.setString(3,name);
      ps.setString(4,stumob);
      ps.setString(5,fname);
      ps.setString(6,fmob);
      ps.setString(7,mname);
      ps.setString(8,gender);
      ps.setString(9,dob);
      ps.setString(10,addr);
      ps.setString(11,programme);
      ps.setString(12,year);
      ps.setString(13,branch);
      ps.setString(14,photo);
      int rs=ps.executeUpdate();
      if(rs!=0)
      {
      out.println("[SUCCESS] RECORDS INSERTED SCUCCESSFULLY");
      RequestDispatcher rd=request.getRequestDispatcher("/dashboard.jsp");
      rd.include(request, response);
      }
      else
      {
      out.println("[FAILURE] RECORDS NOT INSERTED");
      RequestDispatcher rd=request.getRequestDispatcher("/dashboard.jsp");
      rd.include(request, response);
      }
      }catch (Exception e)
      {
      out.println("Error:"+e);
      e.printStackTrace();
      }
      }

      }






      jsp servlets






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      share|improve this question










      asked Jul 10 '17 at 16:30









      ankitjaiswalankitjaiswal

      394




      394
























          2 Answers
          2






          active

          oldest

          votes


















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          try this way it work fine for me



          in jsp:



          <form action="${pageContext.request.contextPath}/binod" method="post">
          <input type="text" name="firstName"/>
          <input type="submit" value="login"/>
          </form>


          in servlet:



          @WebServlet(urlPatterns="/binod")
          public class Test extends HttpServlet{

          @Override
          protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
          System.out.println("your name is"+req.getParameter("firstName"));

          }
          }


          You must override doPost method from HttpServlet






          share|improve this answer































            0














            step 1:
            import



            javax.servlet.annotation.MultipartConfig; 


            step 2:
            add annotation



            @MultipartConfig(maxFileSize = 16177215)    //Length of the file


            after webServlet,urlPatterns



            That's it !!






            share|improve this answer























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              0














              try this way it work fine for me



              in jsp:



              <form action="${pageContext.request.contextPath}/binod" method="post">
              <input type="text" name="firstName"/>
              <input type="submit" value="login"/>
              </form>


              in servlet:



              @WebServlet(urlPatterns="/binod")
              public class Test extends HttpServlet{

              @Override
              protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
              System.out.println("your name is"+req.getParameter("firstName"));

              }
              }


              You must override doPost method from HttpServlet






              share|improve this answer




























                0














                try this way it work fine for me



                in jsp:



                <form action="${pageContext.request.contextPath}/binod" method="post">
                <input type="text" name="firstName"/>
                <input type="submit" value="login"/>
                </form>


                in servlet:



                @WebServlet(urlPatterns="/binod")
                public class Test extends HttpServlet{

                @Override
                protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                System.out.println("your name is"+req.getParameter("firstName"));

                }
                }


                You must override doPost method from HttpServlet






                share|improve this answer


























                  0












                  0








                  0







                  try this way it work fine for me



                  in jsp:



                  <form action="${pageContext.request.contextPath}/binod" method="post">
                  <input type="text" name="firstName"/>
                  <input type="submit" value="login"/>
                  </form>


                  in servlet:



                  @WebServlet(urlPatterns="/binod")
                  public class Test extends HttpServlet{

                  @Override
                  protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                  System.out.println("your name is"+req.getParameter("firstName"));

                  }
                  }


                  You must override doPost method from HttpServlet






                  share|improve this answer













                  try this way it work fine for me



                  in jsp:



                  <form action="${pageContext.request.contextPath}/binod" method="post">
                  <input type="text" name="firstName"/>
                  <input type="submit" value="login"/>
                  </form>


                  in servlet:



                  @WebServlet(urlPatterns="/binod")
                  public class Test extends HttpServlet{

                  @Override
                  protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                  System.out.println("your name is"+req.getParameter("firstName"));

                  }
                  }


                  You must override doPost method from HttpServlet







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jul 10 '17 at 17:40









                  Binod PantBinod Pant

                  139113




                  139113

























                      0














                      step 1:
                      import



                      javax.servlet.annotation.MultipartConfig; 


                      step 2:
                      add annotation



                      @MultipartConfig(maxFileSize = 16177215)    //Length of the file


                      after webServlet,urlPatterns



                      That's it !!






                      share|improve this answer




























                        0














                        step 1:
                        import



                        javax.servlet.annotation.MultipartConfig; 


                        step 2:
                        add annotation



                        @MultipartConfig(maxFileSize = 16177215)    //Length of the file


                        after webServlet,urlPatterns



                        That's it !!






                        share|improve this answer


























                          0












                          0








                          0







                          step 1:
                          import



                          javax.servlet.annotation.MultipartConfig; 


                          step 2:
                          add annotation



                          @MultipartConfig(maxFileSize = 16177215)    //Length of the file


                          after webServlet,urlPatterns



                          That's it !!






                          share|improve this answer













                          step 1:
                          import



                          javax.servlet.annotation.MultipartConfig; 


                          step 2:
                          add annotation



                          @MultipartConfig(maxFileSize = 16177215)    //Length of the file


                          after webServlet,urlPatterns



                          That's it !!







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Nov 24 '18 at 20:33









                          dubking Indiadubking India

                          134




                          134






























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