Passing asp form data to a .jsp string
Hello and thanks in advance for any help.
I would like to pass form information that comes from a standard form into a URL string as follows:
"http://ui.constantcontact.com/roving/wdk/API_AddSiteVisitor.jsp?loginName=benefitevents&loginPassword=connoisseur&ea=[email protected]&ic=test&first_name=Joe&last_name=smith"
I would then like to pass that string forward to its final destination.
Some more info.
Form data is collected on "register.asp" and then passed to "register1.asp" using form method="post" action="register1.asp".
On register1.asp the form info is processed and delivered to the SQL database.
I am only a beginner with the code (it was done by a programmer who is mostly absent when needed now).
So, I need to know as much of the following as you can help with (in descending priority):
1. How to pass the .jsp string forward assuming the proper variables have been passed in the asp code.
2. Where should this command live, in register.asp or register1.asp?
3. How to correctly insert the variables in the URL string from form (correct syntax using asp).
As may be obvious this is for one registrant at a time. The object is deliver the registration information to my SQL database and, at the same time, pass some info to a Constant Contact list. This allows me to integrate Constant Contact into my services to clients seamlessly.
Thank you, hope this was not too much info!
Jim
Javascript is not the same as Java.
There are JS related forums at webdeveloper.com. But I would rethink about the JS approach. It should also be able with ASP and I would prefer that.
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Sharepoint 2013 pass custom form data
I am asking the question since this is my first project working with Sharepoint 2013.
Here is the project requirements:
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type Exception report
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exception
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DanUmmm.... you misspelled "parameter" the second time
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<%@ page import="com.oreilly.servlet.*" %>
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%>
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<%=session.getValue("main.title")%>
</TITLE>
</HEAD>
<h1><center><%=session.getValue("main.head")%><Center>
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<center>
<font>
<table border=1>
<tr>
<td colspan=2><center><img src="asok.bmp"></center>
</tr>
<tr>
<td >
<b>1.)<%=session.getValue("main.ec")%></b>
</td>
<td></td>
</tr>
<tr>
<td align="right"><b><%=session.getValue("main.ecname")%></b>                 <input type="text" name="votername"></td>
<td></td>
</tr>
<tr>
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<option value="mother">Mother</option>
<option value="husband">Husband</option>
</select>
<input type="hidden" name="texthiddenrelation" />
</td>
</tr>
<tr>
<td align="right"><b><%=session.getValue("main.relname")%></b>                 <input type="text" name="parentname">
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<tr>
<td align="right"><b><%=session.getValue("main.relsurname")%>            </b><input type="text" name="parentsurname">
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<tr>
<td><b>5.)<%=session.getValue("main.dob")%></b>
<td><b><%=session.getValue("main.dobday")%></b> <select name="cmbday">
<option value="1"> 1 </option>
<option value="2">2</option>
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">10</option>
<option value="10">11</option>
<option value="11">12</option>
<option value="12">13</option>
<option value="13">14</option>
<option value="14">15</option>
<option value="15">16</option>
<option value="16">17</option>
<option value="17">18</option>
<option value="18">19</option>
<option value="19">20</option>
<option value="20">21</option>
<option value="21">22</option>
<option value="22">23</option>
<option value="23">24</option>
<option value="24">25</option>
<option value="25">26</option>
<option value="26">27</option>
<option value="28">28</option>
<option value="29">29</option>
<option value="30">30</option>
<option value="31">31</option>
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<option value="jan">JAN</option>
<option value="feb">FEB</option>
<option value="mar">MAR</option>
<option value="apr">APR</option>
<option value="may">MAY</option>
<option value="jun">JUN</option>
<option value="jul">JUL</option>
<option value="aug">AUG</option>
<option value="sep">SEPT</option>
<option value="oct">OCT</option>
<option value="nov">NOV</option>
<option value="dec">DEC</option>
</select>
<b><%=session.getValue("main.dobyear")%></b> <select name="cmbyear" onchange="if(this.form.cmbday.selectedIndex!=0 && this.form.cmbmonth.selectedIndex!=0 && this.form.cmbyear.selectedIndex!=0){this.form.mergedage.value=this.form.cmbday.options[this.form.cmbday.selectedIndex].value +' '+this.form.cmbmonth.options[this.form.cmbmonth.selectedIndex].text +' '+ this.form.cmbyear.options[this.form.cmbmonth.selectedIndex].value}" size="1">
<option value="1970">1970</option>
<option value="1971">1971</option>
<option value="1972">1972</option>
<option value="1973">1973</option>
<option value="1974">1974</option>
<option value="1975">1975</option>
<option value="1976">1976</option>
<option value="1977">1977</option>
<option value="1978">1978</option>
<option value="1979">1979</option>
<option value="1980">1980</option>
<option value="1981">1981</option>
<option value="1982">1982</option>
<option value="1983">1983</option>
<option value="1984">1984</option>
<option value="1985">1985</option>
<option value="1986">1986</option>
<option value="1987">1987</option>
<option value="1988">1988</option>
<option value="1989">1989</option>
<option value="1990">1990</option>
<option>
</select>
<input type="hidden" name="mergedage">
</tr>
<tr>
<td colspan=2><b>6.)<%=session.getValue("main.add")%></b>
</tr>
<tr>
<td align="right"><b><%=session.getValue("main.addline1")%></b>                 <input type="text" name="address1" value=""></td>
<td><b><%=session.getValue("main.addstate")%></b>             <input type="text" name="state"></td>
</tr>
<tr>
<td align="right"><b><%=session.getValue("main.addline2")%></b>                 <input type="text" name="address2" onChange="this.form.finaladdress.value=this.form.address1.value + ';' + this.value;"> <input type="hidden" name="finaladdress"> </td>
<td><b><%=session.getValue("main.addcity")%>               </b><input type="text" name="city"></td>
</tr>
<tr>
<td align="right"> <b><%=session.getValue("main.addpin")%></b>              <input type="text" name="pincode">
<td></td>
</tr>
<tr>
<td ><b>7.)<%=session.getValue("main.const")%></b> <input type="text" name="constituency">
<td ><b>8.)<%=session.getValue("main.id")%></b>   <input type="text" name="refno">
</tr>
<tr>
<td colspan="2"><center><input type="reset" name="reset" value="<%=session.getValue("button.reset")%>">  <input type=submit name=Submit value="<%=session.getValue("button.submit")%>"></center></td>
</tr>
<tr>
<td>
</td>
</tr>
</form>
</font>
</BODY>
</HTML>
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<%@ page language="java" pageEncoding="UTF-8"%>
<jsp:useBean id="verify" class="pack.verify" scope="request"/>
<%@ page import="com.oreilly.servlet.*" %>
<%@ page import="java.util.*,java.text.*" %>
<%!
MultipartRequest mp;
// ParameterParser pp;
%>
<!-- Perform the actions on the bean. -->
<%
//pp.setCharacterEncoding("utf-8");
%>
<%
try
mp = new MultipartRequest(request, "d:/Files");
out.println("DONE");
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verify.setRequest(mp);
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verify.verifyEntry();
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catch (Exception e)
System.out.println(e.getMessage());
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<HTML>
<HEAD>
<LINK href="theme/Master.css" rel="stylesheet" type="text/css">
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</TITLE>
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</tr>
<tr>
<td >             <b><%=session.getValue("main.ecname")%></b> <%=verify.getvotername()%>  <input type="hidden" value= "<%=verify.getvotername()%>" name="votername"></td>
</tr>
<tr >
<td>             <b><%=session.getValue("main.ecsurname")%></b><%=verify.getvotersurname()%>
<input type="hidden" value= "<%=verify.getvotersurname()%>" name="votersurname"></td>
</tr>
<tr>
<td ><b>2.)<%=session.getValue("main.rel")%></b><input type="hidden" value= "<%=verify.getvoterrelation()%>" name="texthiddenrelation"></td>
<td><%=verify.getvoterrelation()%></td>
</tr>
<tr>
<td >            <b><%=session.getValue("main.relname")%></b>    <input type="hidden" value= "<%=verify.getparentname()%>" name="parentname"></td>
<td><%=verify.getparentname()%></td>
</tr>
<tr>
<td >            <b><%=session.getValue("main.relsurname")%></b><input type="hidden" value= "<%=verify.getparentsurname()%>" name="parentsurname"></td>
<td><%=verify.getparentsurname()%></td>
</tr>
<tr>
<td><b>3.)<%=session.getValue("main.sex")%></b><input type="hidden" value= "<%=verify.getsex()%>" name="texthiddensex"></td>
<td><%=verify.getsex()%></td>
</tr>
<tr>
<td ><b>4.)<%=session.getValue("main.age")%></B><input type="hidden" value= "<%=verify.getage()%>" name="age"></td>
<td><%=verify.getage()%></td>
</tr>
<tr>
<td><b>5.)<%=session.getValue("main.dob")%></b> <input type="hidden" value= "<%=verify.getdob()%>" name="mergedage"></td>
<td> <%=verify.getdob()%></td>
</tr>
<tr>
<td colspan=2><b>
6.)<b><%=session.getValue("main.add")%></b></td>
</tr>
<tr>
<td>             <b><%=session.getValue("verify.add")%></b><input type="hidden" value= "<%=verify.getadderess()%>" name="finaladdress"> </td>
<td><%=verify.getadderess()%></td>
</tr>
<tr>
<td >            <b><%=session.getValue("main.addpin")%></b><input type="hidden" value= "<%=verify.getpin()%>" name="pincode"></td>
<td><%=verify.getpin()%></td>
</tr>
<tr>
<td>            <b><%=session.getValue("main.addstate")%></b><input type="hidden" value= "<%=verify.getstate()%>" name="state"></td>
<td><%=verify.getstate()%></td>
</tr>
<tr>
<td><b>            <%=session.getValue("main.addcity")%></b><input type="hidden" value= "<%=verify.getcity()%>" name="city"></td>
<td><%=verify.getcity()%></td>
</tr>
<tr>
<td><b>7.)<%=session.getValue("main.const")%></b> <input type="hidden" value= "<%=verify.getconst()%>" name="constituency"></td>
<td><%=verify.getconst()%></td>
</tr>
<tr>
<td><b>8.)<%=session.getValue("main.id")%></b> <input type="hidden" value= "<%=verify.getrefno()%>" name="refno"></td>
<td><%=verify.getrefno()%></td>
</tr>
<tr>
<td colspan="2"><center><INPUT TYPE="button" VALUE="<%=session.getValue("ie.back")%>" onClick="history.go(-1)">
<input type=submit name=Submit value="<%=session.getValue("button.submit")%>"></center><input type="hidden" value= "<%=verify.getpic()%>" name="pic"></td>
</tr>
</form>
</BODY>
</HTML>
//verify.java
package pack;
import java.lang.*;
import java.sql.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import com.oreilly.servlet.*;
import com.oreilly.servlet.ParameterParser.*;
* @author Administrator
* To change this generated comment edit the template variable "typecomment":
* Window>Preferences>Java>Templates.
* To enable and disable the creation of type comments go to
* Window>Preferences>Java>Code Generation.
public class verify {
String votername = "";
String votersurname = "";
String texthiddenrelation="";
String parentname = "";
String parentsurname = "";
String gender = "";
String texthiddensex="";
String age = "";
String dob = "";
String mergedage="";
String address = "";
String finaladdress="";
String pincode = "";
String state = "";
String city = "";
String constituency = "";
String refno = "";
MultipartRequest request = null;
Connection dbConn = null;
ParameterParser pp;
private String voternameParam;
* Set the request object. This is used for getting parameters.
public void setRequest(MultipartRequest request)
this.request = request;
public void verifyEntry()
throws Exception
/* Connect to the database.*/
//pp.setCharacterEncoding("utf-8");
//String nameParam = request.getParameter("name");
MultipartRequest mp;
System.out.println("connected to db2 through insertemployee");
/* Get all the parameters from the calling HTML form.*/
String voternameParam = request.getParameter("votername");
System.out.println("the votername is " + request.getParameter("votername"));
System.out.println(voternameParam);
String votersurnameParam = request.getParameter("votersurname");
System.out.println("the votersurname is " + request.getParameter("votersurname"));
String hiddenrelationParam = request.getParameter("texthiddenrelation");
System.out.println("the relation is " + request.getParameter("texthiddenrelation"));
String parentnameParam = request.getParameter("parentname");
System.out.println("the parentname is " + request.getParameter("parentname"));
String parentsurnameParam = request.getParameter("parentsurname");
System.out.println("the parentsurname is " + request.getParameter("parentsurname"));
String ageParam = request.getParameter("age");
System.out.println("the age is " + request.getParameter("age"));
String mergedageParam = request.getParameter("mergedage");
System.out.println("the mergedage is " + request.getParameter("mergedage"));
String hiddensexParam = request.getParameter("texthiddensex");
System.out.println("the hiddensex is " + request.getParameter("texthiddensex"));
//String dobParam = request.getParameter("dob");
//System.out.println("the dob is " + request.getParameter("dob"));
String finaladdressParam = request.getParameter("finaladdress");
System.out.println("the finaladdress is " + request.getParameter("finaladdress"));
String pincodeParam = request.getParameter("pincode");
System.out.println("the pincode is " + request.getParameter("pincode"));
String stateParam = request.getParameter("state");
System.out.println("the state is " + request.getParameter("state"));
String cityParam = request.getParameter("city");
System.out.println("the city is " + request.getParameter("city"));
String constituencyParam = request.getParameter("constituency");
System.out.println("the constituency is " + request.getParameter("constituency"));
String refnoParam = request.getParameter("refno");
System.out.println("the refno is " + request.getParameter("refno"));
System.out.println("encoding = " + System.getProperty("file.encoding"));
public String getvotername()
return request.getParameter("votername");
public String getvotersurname()
return request.getParameter("votersurname");
public String getvoterrelation()
return request.getParameter("texthiddenrelation");
public String getparentname()
return request.getParameter("parentname");
public String getparentsurname()
return request.getParameter("parentsurname");
public String getage()
return request.getParameter("age");
public String getsex()
return request.getParameter("texthiddensex");
public String getadderess()
return request.getParameter("finaladdress");
public String getpin()
return request.getParameter("pincode");
public String getstate()
return request.getParameter("state");
public String getcity()
return request.getParameter("city");
public String getconst()
return request.getParameter("constituency");
public String getrefno()
return request.getParameter("refno");
public String getdob()
return request.getParameter("mergedage");
public String getpic()
//String a=request.getParameter("pic");
//a=a.substring(a.lastIndexOf("/")+1);
//System.out.print("Java path is "+a);
//Enumeration enum=request.getFileNames();
//while(enum.hasMoreElements())
// String abc=(String)enum.nextElement();
// System.out.print("Java the path is "+abc);
return request.getParameter("pic");
String votername1;
//public void setScope()
//request.setAttribute("votername1" ,voternameParam );
//insertEntry.jsp
<jsp:useBean id="logicbean" class="pack.logicbean" scope="request"/>
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ page import="java.util.*,java.text.*" %>
<%@ page import="com.oreilly.servlet.*" %>
<%
request.setCharacterEncoding("UTF-8");
%>
<!-- Perform the actions on the bean. -->
<%
request.setCharacterEncoding("UTF-8");
%>
<%
try
/* Set the request object.*/
/* The request object is implicitly available in the JSP page.*/
logicbean.setRequest(request);
//MultiPartRequest mp=MultiPartRequest(request,"E:\Files");
/* Insert the employee data into the database.*/
logicbean.insertEntry();
/* Run the query to retrieve the employee data from the database.*/
//logicbean.runQueryInsert();
catch (Exception e)
System.out.println(e.getMessage());
%>
<HTML>
<HEAD>
<TITLE>
Insert Record
</TITLE>
</HEAD>
<BODY background="brown.bmp">
<center><H2><%=session.getValue("ie.label")%>
</H2>
<font face = "Devanagari MT for IBM" size = +2>
<b><%=session.getValue("ie.sd")%>|<%=session.getValue("ie.home")%></b>
</font>
</center>
</BODY>
</HTML>
I have narrowed down the problem to the point where i understand that the "request.getParameter()" function for multipart is not able to understand or read UTF data properly. The out.println prints garbage from this function on the console. im using WAS
plz help
thanx in advance
caffainehi,
To solve your problem Servlet Filters
FILTER PROGRAM
===============
package filters;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.UnavailableException;
public class SetCharacterEncodingFilter implements Filter {
// ----------------------------------------------------- Instance Variables
* The default character encoding to set for requests that pass through
* this filter.
protected String encoding = null;
* The filter configuration object we are associated with. If this value
* is null, this filter instance is not currently configured.
protected FilterConfig filterConfig = null;
* Should a character encoding specified by the client be ignored?
protected boolean ignore = true;
// --------------------------------------------------------- Public Methods
* Take this filter out of service.
public void destroy() {
this.encoding = null;
this.filterConfig = null;
* Select and set (if specified) the character encoding to be used to
* interpret request parameters for this request.
* @param request The servlet request we are processing
* @param result The servlet response we are creating
* @param chain The filter chain we are processing
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain)
throws IOException, ServletException {
// Conditionally select and set the character encoding to be used
if (ignore || (request.getCharacterEncoding() == null)) {
String encoding = selectEncoding(request);
if (encoding != null)
request.setCharacterEncoding(encoding);
// Pass control on to the next filter
chain.doFilter(request, response);
* Place this filter into service.
* @param filterConfig The filter configuration object
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter("encoding");
String value = filterConfig.getInitParameter("ignore");
if (value == null)
this.ignore = true;
else if (value.equalsIgnoreCase("true"))
this.ignore = true;
else if (value.equalsIgnoreCase("yes"))
this.ignore = true;
else
this.ignore = false;
// ------------------------------------------------------ Protected Methods
* Select an appropriate character encoding to be used, based on the
* characteristics of the current request and/or filter initialization
* parameters. If no character encoding should be set, return
* <code>null</code>.
* <p>
* The default implementation unconditionally returns the value configured
* by the <strong>encoding</strong> initialization parameter for this
* filter.
* @param request The servlet request we are processing
protected String selectEncoding(ServletRequest request) {
return (this.encoding);
web-xml entry
+++++++++++
<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>filters.SetCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping> -
Form data - to command - for verification - exec
I'm attempting to assign entered form data into an array, to generate a list
of command line commands from the form data, and pass the array to a
verification page for display. After the displayed and verified information has
been approved , press a submit button to spawn xterms that get passed the
information in the array, the command list, for execution. I'm having a
problems capturing and relaying the data between pages. Currently, the
information(the command list being generated in variable ${myMap}) is
being displayed correctly in the VerificationPage.jsp output but not displayed
correctly (nothing from the ${myMap} variable is displayed)when
ProcessingPage.jsp is loaded. I would appreciate any help offered. Below is
the code I'm using.
File one:
data/form input
File two: VerifcationPage.jsp - assign the consolidated command into myMap array and display it to screen
<c:set scope="application" var="counter" value="0"/>
<c:forEach var="rel" items="${paramValues.rel}" begin="0" step="1">
${myMap} bldautox ${param.phasecmd} -s ${param.submitter} -o r${paramValues.rel[counter]}${param.oldtreeext}${param.oldtreespin} -n r${paramValues.rel[counter]}${param.newtreeext}${param.newtreespin}
<br>
<c:set var="counter" value="${counter + 1}"/>
</c:forEach>
<br>
<c:forEach items="${paramValues.myMap}" begin="0" step="1">
<c:out value="${myMap[count]}" />
</c:forEach>
<input type="submit" name="submitbldreqs" value="Submit">
</form>
File three-the ProcessingPage.jsp - display each indice of myMap variable and be able to submit for command line execution
<c:forEach var="myMap" items="${paramValues.myMap}" begin="0" step="1">
<c:out value="${param.myMap[cntr]}" />
<c:set var="cntr" value="${cntr + 1}"/>
</c:forEach>
<br>
<% String cmd = "0"; %>
<%-- Desired executable Runtime.getRuntime().exec("/usr/bin/xterm -e" + {myMap}[cntr]); --%>
<% Runtime.getRuntime().exec("/usr/bin/xterm"); %>
</body>You put newlines in by pressing the enter key a couple of times.
see?
For the rest of it, there is a big handy button with "code" labelled on it.
[code[/i]]
// put your code between tags like these.
[code[/i]]
That post is a completely unreadable mess. I suggest you try again. -
Help fowarding data to a jsp page
I know your not meant to double post but i was told it would be better if i post this message in here so:
I am trying to create a bean that will connect to a database and bring back data depending on what a user typed into a html form. However i need some help, if the database does not find any data i want to send a message saying something like "no results" to a jsp page which then be displayed, if results are found i then want to pass on these results to another jsp page.
My question is how would i pass on this data / message to a jsp page? Also if more then one piece of data is returned from the database how would i be able to make sure everything is sent to the jsp?In the above code a Servlet, a JavaBean, JDBC and everything else is combined into just one class. That is not how it is.
A Servlet is a Servlet --- it is not a JavaBean ---- So create a dedicated class that is purely a Servlet and does what a Servlet is supposed to do. Taking the tutorial on Servlets will help you understand them better.
A JavaBean is a JavaBean ---- it is not a Servlet --- Create a JavaBean class.
Move the Database Connection code to the Data Access Layer --- this means create separate classes that are meant to only access data.
It is better to learn each individual concept before attempting something more complex.
Also build small code into your class, ---- understand what it's doing then compile it frequently.
I'll give you hints on how you should properly implement an MVC pattern.
JSP Page
This page contains an HTML form , with form fields and a submit button.
In the action attribute of the form you will specify the URL-pattern for the Servlet.
The URL-pattern for the servlet will be defined in web.xml , for example
<form action="/MyFirstServlet" method="post" >
</form>Then create a Servlet , in its package , so for example
com.myapp.servlet.MyFirstServlet.java
Place the servlet file in a proper folder structure in the Java source folder.
When the Servlet it compiled it needs to go under the corresponding folder structure under your applications /WEB-INF/classes/ folder.
Your servlet will look something like this:
package com.myapp.servlet.MyFirstServlet;
//All import statements go here
public class MyFirstServlet extends HttpServlet{
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ......... exceptions {
doPost(request, response);
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ......... exceptions {
//Process the request here
request.getAttribute("someFormField");
//similarly get all form fields
//Store all fields into a JavaBean
//Then call a method that saves the data to database
saveToDatabase(pass the javabean here);
private void saveToDatabase(SomeJavaBean someJavaBean){
//Over here call a DataAccessObject -- DAO that saves the data
// to the database.
/WEB-INF/web.xml
When you write a servlet you need to define it in web.xml and define a URL mapping also for it in web.xml
JavaBean example
com.myapp.beans.Person.java
package com.myapp.beans.Person;
//whatever import statements (if any) go here
public class Person{
private int age;
private String firstName;
public Person(){} //Every JavaBean must have a default constructor
//Write the Getters and Setters for the private fields above.
//in proper JavaBeans notation as follows
public void setAge(int age){
this.age = age;
public int getAge(){
return this.age;
//Similarly write getter and setter for firstName
}You would then use the above JavaBean to transport data between the database layer and JSP layer via the Servlet.
If you are Saving to the Database , you read the HTML form's data and save it into one JavaBean and then pass the JavaBean to the database layer to be saved. In the Database layer you write JDBC code to save the data.
If you are Reading from the database, you create an ArrayList of JavaBean objects in the database layer using JDBC code and then pass the ArrayList to the Servlet which stores it in the Request, then the servlet forwards control to the JSP which then reads the data from the request.
Most of the above is pseudo code, it is just there to give you an idea about how do this properly in MVC --- you can then read tutorials on each of the above --- for example tutorial on Servlet, tutorial on JDBC, tutorial on Java Classes and then understand them more.
Maybe you are looking for
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