How to retrieve text box value from a JSP page

java jsp servlets web-applications

21,652

Solution 1

Put the following code between form tag.

<form ENCTYPE="multipart/form-data" ACTION="upload.jsp" METHOD=POST>
    <center>
            <label for="email">Enter email address</label>
            <input id="email" name="email">
    </center>
   -------
   -------
 </form>

on Server side write

String email=request.getParameter("email");

this will definitely solved your problem.

Solution 2

you are requesting for upload.jsp?e=<%=mail%> where the parameter name is e and an other side you are getting the request.getParameter("email"); try this request.getParameter("e");or use this instead upload.jsp?email=<%=mail%> for request.getParameter("email");

21,652

Author by

user3254893

Updated on February 05, 2020

Comments

user3254893 about 4 years

I am creating a web application in Java and am having trouble retrieving a value from a text box. My aim is to ask the user to enter their email address and then use the value entered for the rest of my application. I do this by attempting to pass the value as part of the URL in the jsp file (and retrieve it using request.getParameter()). However, the value that I keep retrieving is null.

Here is my code:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<HTML>
<HEAD>
<TITLE>Display file upload form to the user</TITLE>
</HEAD>

        <center>
                <label for="email">Enter email address</label>
                <input id="email" name="email">

        </center>

<% String mail = request.getParameter("email");
                        System.out.println(mail);%>
<BODY>
    <FORM ENCTYPE="multipart/form-data" ACTION="upload.jsp?e=<%=mail%>" METHOD=POST>
        <br> <br> <br>

        <center>
            <table border="0" bgcolor=#ccFDDEE>
                <tr>
                    <center>
                        <td colspan="2" align="center"><B>UPLOAD THE FILE</B>
                            <center></td> 
                </tr>
                <tr>
                    <td colspan="2" align="center"></td>
                </tr>
                <tr>
                    <td><b>Choose the WebEx File To Upload and Convert:</b></td>
                    <td><INPUT NAME="file" TYPE="file"></td>
                </tr>
                <tr>
                    <td colspan="2" align="center"></td>
                </tr>
                <tr>
                    <td colspan="2" align="center"><input type="submit"
                        value="Upload and Convert Recording"></td>
                </tr>
                <table>
                    </center>
                    </FORM>
</BODY>
</HTML>

I am trying to pass the mail value into the jsp file so that I can use it in my application