String isno1=request.getParameter("isbn");
String bktitle2=request.getParameter("booktitle");
String authr3=(String) request.getParameter("author");
System.out.println(isno1+bktitle2+authr3);
Enumeration paramaterNames = request.getParameterNames();
when i am taking the parameters in servlet then i am gettin my values as 'null'
what wrong am i doing.
this is the way i am setting the parameters...
from a jsp page using script tag
<script type="text/javascript">
function getHTTPObject()
{
var httpobject;
if(!httpobject && typeof(XMLHttpRequest) != 'undefined')
{
try{
httpobject=new XMLHttpRequest();
}
catch(e){
xmlhttp=false;
}
}
return httpobject;
}
var httpob=getHTTPObject();
function handleHttpResponse(){
if(httpob.readyState==4){
//alert("sd");
var result=httpob.responseText;
alert(result);
/* document.write("hi your book is submitted !!!!!"); */
}
}
function auth(){
var params="isbn="+document.mayurform.isbn.value+"&booktitle="+document.mayurform.booktitle.value+"&author="+document.mayurform.author.value;
alert("params sending"+params);
httpob.open("POST","addbook",true);
httpob.setRequestHeader("Content-type","application/x-www-form-urlencoded");
httpob.setRequestHeader("Content-length",params.length);
httpob.setRequestHeader("Connection","close");
/* httpob.setRequestHeader("Content-type","application/x-www-from-urlencoded");
httpob.setRequestHeader("Content-length",params.length);
httpob.setRequestHeader("Connection","close"); */
httpob.onreadystatechange=handleHttpResponse;
httpob.send();
}
</script>
and this my form.....
<form style="margin: 100px;" name="mayurform">
<table align="center">
<tr>
<td align="center">ISBN NO.</td>
<td><input align="middle" type="text" size="20" name="id" id="isbn">
</tr>
<tr>
<td align="center">Book-Title</td>
<td><input align="middle" type="text" size="20" name="pwd" id="booktitle">
</td>
</tr>
<tr>
<td align="center">Author</td>
<td><input align="middle" type="text" size="20" name="pwd" id="author">
</tr>
<tr>
<td><input align="middle" type="button" size="20" name="Add-Book" onclick="auth()">
</tr>
</table>
</form>
You are fetching parameters with ID's you should give Names.
for example
String isno1=request.getParameter("isbn"); //here is isbn is id
you should write
<input align="middle" type="text" size="20" name="id" id="isbn">
String isno1=request.getParameter("id");-----------^
and also
<td><input align="middle" type="text" size="20" name="pwd" id="booktitle">
<td><input align="middle" type="text" size="20" name="pwd" id="author">
both inputs have the same **name** please check it
http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/Servlet-Tutorial-Form-Data.html
Use like below ajax send() to send data
function auth(){
var params="isbn="+document.mayurform.isbn.value+"&booktitle="+document.mayurform.booktitle.value+"&author="+document.mayurform.author.value;
alert("params sending"+params);
.......
...
httpob.send(params);//change is here
}
call httpob.send(),passing in the parameters that will be sent (without the "?" prefix).
Related
I am using this code to get form data used inside jsp Form.
String product=request.getParameter("product");
String qty=request.getParameter("quantity");
String price=request.getParameter("price");
writer.println(product +" "+qty+" "+price);
How Ever i am using dynamic form.How do i can get all datas in controller class.
Here is the code of view class i.e jsp Pages.
<script>
$(document).ready(function(){
$("button").on("click", function(){
var row = '<tr><td><input type="text" name="product" value="product..">'+
'</input></td><td><input type="number" name="quantity" value="quanty..">' +
' </input></td><td><input type="number" name="price" value="price.."> </input></td></tr>';
$("#customers").append(row);
});
});
</script>
</head>
<body>
<button type="button">Add More Products</button>
<form action="XmlServlet" method="get">
<table id="customers">
<tr>
<th>Product</th>
<th>Quantity</th>
<th>Price</th>
</tr>
<tr>
<td><input type="text" name="product" value="product.."></input> </td>
<td><input type="number" name="quantity" value="quanty.."></input></td>
<td><input type="number" name="price" value="price.."></input></td>
</tr>
<tr>
<td><input type="submit"></td>
</tr>
</table>
</form>
How do i can get all data's saved in text field after add more button action's.
String[] products = request.getParameterValues("product");
I'm make simple login page use jsp
my problem is getParameter is always null
this is my mainpage.jsp code
<form action = "LoginProcess.jsp" method = "post">
<table align="center">
<tr>
<td><label for="userid">ID : </label></td>
<td><input type="text" name="userid" id="userid"></td>
</tr>
<tr>
<td><label for="userpw">PW : </label></td>
<td><input type="password" name="userpw" id="userpw"></td>
</tr>
<tr>
<td colspan="2" align="center">
<input type="hidden" name="status">
<input type="button" name="join" class="loingbtn" value="">
<input type="button" name="find" class="loingbtn" value="">
<input type="button" name="booking" class="loingbtn" value="">
<input type="button" name="msg" class="loingbtn" value="">
<input type="submit" name="login" class="loginbtn" value="">
</form>
This is loginprocess.jsp
<body>
<jsp:useBean id = "brd" class = "mainpage.LoginUser" scope="page"/>
<jsp:useBean id = "brddb" class = "mainpage.UserDB" scope="page"/>
<%
String id = request.getParameter("userid");
String passwd = request.getParameter("userpw");
if ((brddb.isLogin(id, passwd))) {
%>
<script>
alert("Success");
</script>
<%
}else{
%>
<script>
alert("Fail");
self.close();
</script>
<%
}
%>
this two variable is alaway null
String id = request.getParameter("userid");
String passwd = request.getParameter("userpw");
what can i do
Check whether in these 2 classes
<jsp:useBean id = "brd" class = "mainpage.LoginUser" scope="page"/>
<jsp:useBean id = "brddb" class = "mainpage.UserDB" scope="page"/>
you are setting id and psswd to null.
That could be the only reason you are getting null.
I've a form that can edit/update data build in modal (bootstrap), I want to check the checkbox based on my row table...
this is my edit/update form :
<td><fieldset id="menu_e">
<input type="checkbox" name="menu" value="User" class="ceksmenu">User<br />
<fieldset id="sub_menu_user_e">
<input type="checkbox" name="sub_menu_user" value="User1" class="ceksmuser">User1
<input type="checkbox" name="sub_menu_user" value="User2" class="ceksmuser">User2
<input type="checkbox" name="sub_menu_user" value="User3" class="ceksmuser">User3<br />
</fieldset>
<input type="checkbox" name="menu" value="Monitoring" class="ceksmenu">Monitoring<br />
<fieldset id="sub_menu_monitoring_e">
<input type="checkbox" name="sub_menu_monitoring" value="Monitoring1" class="ceksmmonit">Monitoring1
<input type="checkbox" name="sub_menu_monitoring" value="Monitoring2" class="ceksmmonit">Monitoring2
<input type="checkbox" name="sub_menu_monitoring" value="Monitoring3" class="ceksmmonit">Monitoring3<br />
</fieldset>
<input type="checkbox" name="menu" value="Parameter" class="ceksmenu">Parameter<br />
<fieldset id="sub_menu_parameter_e">
<input type="checkbox" name="sub_menu_parameter" value="Parameter1" class="ceksmparam">Parameter1
<input type="checkbox" name="sub_menu_parameter" value="Parameter2" class="ceksmparam">Parameter2
<input type="checkbox" name="sub_menu_parameter" value="Parameter3" class="ceksmparam">Parameter3</fieldset>
</fieldset>
</td>
this is my table code :
<tbody>
<c:forEach var="row" items="${requestScope.authorityuser}">
<tr>
<td>${row.id_authority}</td>
<td>${row.nama_authority}</td>
<td><c:forEach var="u" items="${row.menu}">|${u}| </c:forEach></td>
<td><c:forEach var="u" items="${row.sub_menu_user}">|${u}| </c:forEach></td>
<td><c:forEach var="u" items="${row.sub_menu_monitoring}">|${u}| </c:forEach></td>
<td><c:forEach var="u" items="${row.sub_menu_parameter}">|${u}| </c:forEach></td>
<input type="hidden" name="id_authority" value="${row.id_authority }">
<td><a href="#update" role="button" data-toggle="modal"
class="update" id_update="${row.id_authority}"
nama_authority="${row.nama_authority}" menu="${row.menu}"
sub_menu_user="${row.sub_menu_user}" sub_menu_monitoring="${row.sub_menu_monitoring}"
sub_menu_parameter="${row.sub_menu_parameter}"> <i class="icon-edit"></i> <spring:message code="edit" text="default text" />
</a><a href="#delete" role="button" data-toggle="modal"
class="delete" id_delete="${row.id_authority}">
<i class="icon-trash"></i> <spring:message code="delete" text="default text" />
</a></td>
</tr>
</c:forEach>
</tbody>
I tried like this and it's not work :(
<script type="text/javascript">
$(document).ready(function() {
$('.update').click(function() {
if($('input:checkbox[name=sub_menu_user]').is(':checked')){
$('input:checkbox[name=sub_menu_user]').prop('checked', true);
}else{
$('input:checkbox[name=sub_menu_user]').prop('checked', false);
}
var id_update = $(this).attr("id_update");
var nama_authority = $(this).attr("nama_authority");
var menu = $('input:checkbox[name=menu]').is(':checked');
var sub_menu_user = $('input:checkbox[name=sub_menu_user]').is(':checked');
var sub_menu_monitoring = $('input:checkbox[name=sub_menu_monitoring]').is(':checked');
var sub_menu_parameter = $('input:checkbox[name=sub_menu_parameter]').is(':checked');
$('#id_authority_e').val(id_update);
$('#id_authority_l').val(id_update);
$('#nama_authority_e').val(nama_authority);
$('#menu_e').val(menu);
$('#sub_menu_user_e').val(sub_menu_user);
$('#sub_menu_monitoring_e').val(sub_menu_monitoring);
$('#sub_menu_parameter_e').val(sub_menu_parameter);
});
$('.delete').click(function() {
var id_delete = $(this).attr("id_delete");
$('#id_authority_d').val(id_delete);
});
$('#example').dataTable({
});
});
</script>
this is the output of my table
how is it possible?? any help will be pleasure :)
this is my edit/update form
this is my table
Well i just looked at the javascript portion, here is my answer.
You would have to read the Text in the HTML and parse it, for that you need to be able to get a specific cell. With the row_id you can narrow your search down and over the classname for the cloumn you get the right cell.
I hope this short working demo on jsFiddle might help you with your "problem".
HTML:
<table class="data-table">
<tr id="row_1"><td class="authority">...</td>
<!-- id should be constructed something like id="row_${row.id_authority}" -->
<td class="...">...</td>
<td class="users">|user1|user2|user3|</td>
<td class="...">...</td>
<td> edit </td>
<!-- id_update should be as in your code id="${row.id_authority}" -->
</tr>
</table>
Javascript:
$(function(){
$(".update").click(function(){
var id_update = $(this).attr("id_update");
var users = $("#row_" + id_update).find(".users").text().split("|").slice(1,-1);
for(var user in users)
alert(users[user]);
});
});
// tested on Windows 7 with Chrome 33+
edit: added some "Code"
possible JSP Code:
<c:forEach var="row" items="${requestScope.authorityuser}">
<tr id="row_${row.id_authority}">
<td class="...">${row.id_authority}</td>
<td class="...">...</td>
<td class="users"><c:forEach var="u" items="${row.sub_menu_user}">|${u}| </c:forEach></td>
<td class="...">...</td>
<td>
<a href="#update" role="button" data-toggle="modal"
class="update" id_update="${row.id_authority}"
nama_authority="${row.nama_authority}" menu="${row.menu}"
sub_menu_user="${row.sub_menu_user}" sub_menu_monitoring="${row.sub_menu_monitoring}"
sub_menu_parameter="${row.sub_menu_parameter}"> <i class="icon-edit"></i> <spring:message code="edit" text="default text" />
</a> ...
</td>
</tr>
</c:forEach>
edit:
i updated the jsFiddle (this link is different to the one above).
the important part is here...
for(var user in users){
// it could be optimized, but like this it could work.
$("input[name='sub_menu_user'][value='" + users[user] + "']")[0].checked=true;
}
// tested on Windows 7 with Chrome 33+
I've got a jsp file with two text fields (signUp and post). Now, I want the post text and the signUp text to be called to a servlet. Normally its going with request.getParameter(), but now I want the post text going to the servlet with an AJAX function and the signup text with the normal way (that means the name of the input within the jsp file and then request.getParameter).
Is it possible to mix both parts within one servlet because i have this:
<form name="form1" method="POST" action="PostWallServlet" id="form1">
form1 is the ajax code. I don't know how this should work. Normally there stands
`<form action="PostWallServlet" method="POST" >
and everything is callable through the Servlet. But, for now I don't know how I can mix up both components.
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
PostWall pw=new PostWall();
SimpleDateFormat df = new SimpleDateFormat("YYYY/MM/DD hh:mm:ss");
Calendar cal = Calendar.getInstance();
System.out.println("Current Date Time : " + df.format(cal.getTime()));
String message = "";
String sender = request.getParameter("sender");
String post = request.getParameter("message");
String a= df.format(cal.getTime()).toString();
pw.setSender(sender);
pw.setPost(post);
pw.setDate(a);
if (pwi.addPost(pw)) {
message = "Student Successfuly Added";
} else {
message = "Student Adding Failed";
}
//RequestDispatcher rd = request.getRequestDispatcher("post.jsp");
//rd.forward(request, response);
}
$(document).ready(function(){
$('#Add').click(function(){
sendData();
});
});
function sendData(){
var mge = $('#newText').val();
alert(mge);
$.ajax({
type: "POST",
url: "PostWallServlet",
data: { message : mge }
}).done(function( msg ) {
alert( "Data Saved: " + msg );
});
}
</script>
<form name="form1" method="GET" action="PostWallServlet" id="form1"></form>
<table border="0" width="100%">
<tr>
<td colspan="3"> ${message}</td>
</tr>
<tr>
<td>Sender</td>
<td>:</td>
<td><input type="text" name="sender" value="" size=20/></td>
</tr>
<tr>
<td>Post</td>
<td>:</td>
<td><input type="text" name="post" value="" size=500 id="newText"/ ></td>
</tr>
<tr>
<td></td>
<td></td>
<td><input type="submit" value="Add" name="Add" /></td>
</tr>
</table>
Any solutions?
Put your ending tag for form AFTER all your inputs:
<form name="form1" method="GET" action="PostWallServlet" id="form1">
...
<td><input type="text" name="sender" value="" size=20 /></td>
...
<td><input type="text" name="post" value="" size=500 id="newText" /></td>
...
<td><input type="submit" value="Add" name="Add" /></td>
...
</form>
Your inputs must be INSIDE the form, not after the form.
Also make sure to end your input tags with /> not / >. You have a space between / and > on one of them.
For the Ajax part you need to give your inputs ids as well as names:
<td><input type="text" name="sender" id="sender" value="" size=20 /></td>
And then in your Ajax function for data:
data: { sender: $('#sender').val(), post: $('#post').val() }
I have a Map Object,this Map Object has some values and i m populating these values on a jsp page but the problem is that when i post the jsp page to another controller i want the same values to be present in the map Object.
Map(Some values)--->controller--->jsp(Map+some additional values)----post----->another controller[want Map+additional values]
MailContent.java
public class MailContent {
private String from;
private String to;
private String[] toMany;
private Map<String,byte[]> attachements;
//getter setter
}
some.jsp
<f:form action="../hr/sendNotification" commandName="mailHolder">
<table>
<tr>
<td><label>From:</label></td>
<td><input class="inputq" type="text" name="from" /></td>
</tr>
<tr>
<td><label>To:</label></td>
<td><input type="text" class="inputq" name="to" id="to"></input></td>
</tr>
<tr>
<td><label>Subject:</label></td>
<td><input class="inputq" type="text" name="subject" /></td>
</tr>
<c:forEach var="attach" items="${mailHolder.attachements }" varStatus="i">
<tr>
<td><label>Attachement:${i.index+1 }</label></td>
<td><input class="inputq" type="text" value="${attach.value }" name="attachements[${i.index }].value"/>
<input class="inputq" type="text" value="${attach.key }" name="attachements[${i.index }].key"/>
</tr>
</c:forEach>
<tr>
<td><label>Message:</label></td>
<td><textarea class="tarea" cols="60" rows="10" name="message"></textarea></td>
</tr>
<tr>
<td></td>
<td><input class="fancy" type="submit" value="Send" />
<input class="fancy" type="reset"
value="Reset" /></td>
</tr>
</table>
</f:form>
The key value pair is displayed successfully on jsp but when i post it to another controller and get the values then the key part is filled with some index instead of value.
on console:
before:
MailContent [from=null, to=null, attachements={abc=[B#1d37913, xyz=[B#b20ff5}, subject=null, message=null]
Afetr post:
MailContent [from=from, to=to#gmail.com, attachements={0=[B#ebe064, 1=[B#1d90655}, subject=subject, message=message]