Why Json get function returns null in jsp page??
Hi guys,
i have developed a simple program that send HTTPrequest and get json as response. now i want to display this json to Treeview but i have able to get the valid json, i create a json object and setData(json). still its ok. but when i do json.get("id"). i get null. it is not working for any of the key present in that json object. can some one help me?? below is the code i am using.
where sb is StringBuffer containt json in text form
System.out.println(sb);
JSONObject obj = new JSONObject();
obj.setData(sb);
System.out.println(obj.getData());
System.out.println(obj.get("id"));
thanks in advance...
What is the data?
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package com.developer;
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Why ResultSet getDate() method returns null when querying .csv file?
Here is the full code:
import java.sql.*;
import java.sql.Types;
import java.sql.Date;
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import java.text.SimpleDateFormat;
import java.util.Calendar;
class jdbc2{
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private Connection conn=null;
public static void main(String[] args) throws SQLException{
jdbc2 db=new jdbc2();
try {
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
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finally {
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db.conn.close();
Everything works well, until getting to the block
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The getDate("DATE", Calendar.getInstance())); always returns null, instead of the date value in the vwo-1.csv.
Even though I change it to
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The .csv fils is downloaded from YahooFinace.
Can anyone review the code and shed some light as to what I did wrong?
Thanks alot.CREATE TABLE `login` (
`username` varchar(40) DEFAULT NULL,
`password` varchar(40) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `amount` (
`amountid` int(11) NOT NULL,
`receiptid` int(11) DEFAULT NULL,
`loanid` int(11) DEFAULT NULL,
`amount` bigint(11) DEFAULT NULL,
`latefee` int(11) DEFAULT NULL,
`paymentid` int(11) DEFAULT NULL,
`pid` int(11) DEFAULT NULL,
PRIMARY KEY (`amountid`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `applicationfee` (
`applicationfeeid` int(11) DEFAULT NULL,
`applicationamount` int(11) DEFAULT NULL,
`applicationfee` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `category` (
`categoryid` int(11) DEFAULT NULL,
`categoryname` varchar(40) DEFAULT NULL,
`categorydescription` varchar(500) DEFAULT NULL,
`cattype` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `commission` (
`commissionid` int(11) DEFAULT NULL,
`bussiness` int(11) DEFAULT NULL,
`commission` int(11) DEFAULT NULL,
`pid` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `customer` (
`cacno` int(11) NOT NULL DEFAULT '0',
`name` varchar(40) DEFAULT NULL,
`age` int(11) DEFAULT NULL,
`cphone` varchar(40) DEFAULT NULL,
`cmobile` varchar(40) DEFAULT NULL,
`caddress` varchar(500) DEFAULT NULL,
`cstatus` varchar(20) DEFAULT NULL,
`cphoto` longblob,
`pid` int(11) DEFAULT NULL,
PRIMARY KEY (`cacno`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `daybook` (
`closingbal` varchar(40) DEFAULT NULL,
`date` date DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `extraincome` (
`categoryid` int(11) NOT NULL,
`receiptid` int(11) DEFAULT NULL,
`date` date DEFAULT NULL,
`amountid` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `employee` (
`empno` int(11) DEFAULT NULL,
`empname` varchar(40) DEFAULT NULL,
`age` int(11) DEFAULT NULL,
`sal` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `image` (
`id` int(11) DEFAULT NULL,
`image` blob
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `loan` (
`loanid` int(11) NOT NULL DEFAULT '0',
`loanamt` varchar(40) DEFAULT NULL,
`payableamount` double DEFAULT NULL,
`installment` int(11) DEFAULT NULL,
`payableinstallments` int(11) DEFAULT NULL,
`monthlyinstallment` varchar(20) DEFAULT NULL,
`surityname` varchar(20) DEFAULT NULL,
`applicationfeeid` int(11) DEFAULT NULL,
`interestrate` float DEFAULT NULL,
`issuedate` date DEFAULT NULL,
`duedate` date DEFAULT NULL,
`nextduedate` date DEFAULT NULL,
`cacno` int(11) DEFAULT NULL,
`cname` varchar(20) DEFAULT NULL,
`pid` int(11) DEFAULT NULL,
`interestamt` double DEFAULT NULL,
`pendingamt` float DEFAULT NULL,
PRIMARY KEY (`loanid`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `md` (
`mdid` int(11) NOT NULL DEFAULT '0',
`mdname` varchar(40) DEFAULT NULL,
`mdphoto` varchar(100) DEFAULT NULL,
`mdphone` varchar(40) DEFAULT NULL,
`mdmobile` varchar(40) DEFAULT NULL,
`mdaddress` varchar(500) DEFAULT NULL,
PRIMARY KEY (`mdid`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `partner` (
`pid` int(11) NOT NULL DEFAULT '0',
`pname` varchar(40) DEFAULT NULL,
`paddress` varchar(500) DEFAULT NULL,
`pphoto` varchar(100) DEFAULT NULL,
`pphone` varchar(40) DEFAULT NULL,
`pmobile` varchar(40) DEFAULT NULL,
`pstatus` varchar(20) DEFAULT NULL,
`mdid` int(11) DEFAULT NULL,
`mdname` varchar(40) DEFAULT NULL,
`date` date DEFAULT NULL,
`nextpaydate` date DEFAULT NULL,
PRIMARY KEY (`pid`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `partnerinvested` (
`pid` int(11) DEFAULT NULL,
`pname` varchar(20) DEFAULT NULL,
`receiptid` int(11) DEFAULT NULL,
`date` date DEFAULT NULL,
`amountinvested` int(11) DEFAULT NULL,
`latefee` int(11) DEFAULT NULL,
`amountid` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `payments` (
`paymentid` int(11) NOT NULL,
`categoryid` int(11) DEFAULT NULL,
`particulars` varchar(100) DEFAULT NULL,
`amountid` int(11) DEFAULT NULL,
`paymentdate` date DEFAULT NULL,
PRIMARY KEY (`paymentid`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
CREATE TABLE `receipts` (
`receiptid` int(11) DEFAULT NULL,
`paiddate` date DEFAULT NULL,
`amountid` int(11) DEFAULT NULL,
`loanid` int(11) DEFAULT NULL,
`latefee` int(11) DEFAULT NULL,
`installment` int(11) DEFAULT NULL,
`cacno` int(11) DEFAULT NULL,
`cname` varchar(40) DEFAULT NULL,
`pid` int(11) DEFAULT NULL
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When I run the following code
set nocount on
declare @i table(id int identity(1,1) primary key, sDate datetime)
while((select count(*) from @i)<10000)
begin
insert into @i(sDate) select getdate()
end
select top 5 sDate, count(id) selectCalls
from @i
group by sDate
order by count(id) desc
I get the following results.
sDate selectCalls
2014-07-30 14:50:27.510 406
2014-07-30 14:50:27.527 274
2014-07-30 14:50:27.540 219
2014-07-30 14:50:27.557 195
2014-07-30 14:50:27.573 170
As you can see the select getdate() function returned same time up to the milisecon 406 time for the first date value. This started happening when we moved our applications to a faster server with four processors. Is this correct or am I
going crazy?
Please let me know
BilalObserve that adding 2 ms is accurate only with datetime2. As noted above, datetime does not have ms resolution:
set nocount on
declare @d datetime, @i int, @d2 datetime2
select @d = getdate(), @i = 0, @d2 = sysdatetime()
while(@i<10)
begin
select @d2, @d, current_timestamp, getdate(), sysdatetime()
select @d = dateadd(ms,2,@d), @i = @i+1, @d2=dateadd(ms,2,@d2)
end
2014-08-09 08:36:11.1700395 2014-08-09 08:36:11.170 2014-08-09 08:36:11.170 2014-08-09 08:36:11.170 2014-08-09 08:36:11.1700395
2014-08-09 08:36:11.1720395 2014-08-09 08:36:11.173 2014-08-09 08:36:11.170 2014-08-09 08:36:11.170 2014-08-09 08:36:11.1700395
2014-08-09 08:36:11.1740395 2014-08-09 08:36:11.177 2014-08-09 08:36:11.170 2014-08-09 08:36:11.170 2014-08-09 08:36:11.1700395
2014-08-09 08:36:11.1760395 2014-08-09 08:36:11.180 2014-08-09 08:36:11.170 2014-08-09 08:36:11.170 2014-08-09 08:36:11.1700395
2014-08-09 08:36:11.1780395 2014-08-09 08:36:11.183 2014-08-09 08:36:11.170 2014-08-09 08:36:11.170 2014-08-09 08:36:11.1700395
2014-08-09 08:36:11.1800395 2014-08-09 08:36:11.187 2014-08-09 08:36:11.170 2014-08-09 08:36:11.170 2014-08-09 08:36:11.1700395
DATE/TIME functions:
http://www.sqlusa.com/bestpractices/datetimeconversion/
Kalman Toth Database & OLAP Architect
SQL Server 2014 Design & Programming
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012 -
Report- Pl/sql function returning sql query parsing page items as text?
Hi Team,
I am facing a strange issue .
I have four page items namely
1)JOB_CODE
2)MIN_EXP
3) MAX_EXP
4) SOURCES1
I have a report of the type "Pl/sql function returning sql query"
declare
v_sql varchar2(4000);
begin
if (:JOB_CODE IS NOT NULL and :MIN_EXP IS NOT NULL and :MAX_EXP IS NOT NULL and :SOURCES1 IS NOT NULL) then
v_sql:= 'select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where V_REQUIREMENT = :JOB_CODE and v_experience_years >= :MIN_EXP and v_experience_years <= :MAX_EXP and source like ' || '''' || '%'|| ':SOURCES1' || '%' || '''';
elsif (:JOB_CODE IS NULL and :MIN_EXP IS NOT NULL and :MAX_EXP IS NOT NULL and :SOURCES1 IS NOT NULL) then
v_sql := 'select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where v_experience_years >= :MIN_EXP and v_experience_years <= :MAX_EXP and source like ' || '''' || '%'|| ':SOURCES1' || '%' || '''';
elsif (:MIN_EXP IS NULL and :JOB_CODE IS NOT NULL and :MAX_EXP IS NOT NULL and :SOURCES1 IS NOT NULL) then
v_sql := 'select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where v_experience_years <= :MAX_EXP and V_REQUIREMENT = :JOB_CODE and source like ' || '''' || '%'|| ':SOURCES1' || '%' || '''';
elsif (:MAX_EXP is null and :JOB_CODE IS NOT NULL and :MIN_EXP IS NOT NULL and :SOURCES1 IS NOT NULL) then
v_sql := 'select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where V_REQUIREMENT = :JOB_CODE and v_experience_years >= :MIN_EXP and source like ' || '''' || '%'|| ':SOURCES1' || '%' || '''';
end if;
insert into query_list values (v_sql);
insert into debug values (:JOB_CODE , :MIN_EXP , :MAX_EXP , :SOURCES1);
return v_sql;
end;
Please not that I am insertin the query into a table called Query_list and the page item values into the table called Debug thru the pl/sql function which returns teh query.
Now I select the data from the debug tables.
select unique(query) from query_list;
select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where V_REQUIREMENT = :JOB_CODE and v_experience_years >= :MIN_EXP and v_experience_years <= :MAX_EXP and source like '%:SOURCES1%'
select * from debug;
JOBCODE MINEX MAXEX SOURCE
21 1 10 donkeyHire
And if I run the query in sql I get some records returned
select v_candidate_id, v_fname,v_current_employer,v_Experience_years from candidature where V_REQUIREMENT = 21 and v_experience_years >= 1 and v_experience_years <= and source like 'donkeyHire'
V_CANDIDATE_ID V_FNAME V_CURRENT_EMPLOYER V_EXPERIENCE_YEARS
2 Vengu Andale Tech 4
But the record does not show up in the report!
does this type of report parse page items as text?
Why is it so?
Waiting for an early reply.
Thanks,
venkatVenkat - You don't want to put ':SOURCES1' in quotes like that.
Scott -
Unable to get the value from the jsp page.
Hi,
I have developed a JSP, having two split fields seperated by some buttons..The sample code for the same is like this..
(Only the required portion is included)
<script>
function reloadPageOK() {
document.product.method="post"
document.product.action="./TheSamePage.jsp?status=OK"
document.product.submit()
function moveValue(from,to) {
if(from.selectedIndex>=0) {
var text=from[from.selectedIndex].text
var length= to.length
to[length]=new Option(text,from.value,false,false)
from.remove(from.selectedIndex)
function moveAll(from,to) {
if(from.length>0) {
var menutext="";
var i;
var len=from.length
for(i=0;i<len;i++) {
from.selectedIndex=0
menutext=from[0].text
var length= to.length
to[length]=new Option(menutext,from.value,false,false)
from.remove(from.selectedIndex)
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<table width="100%" border="0" cellspacing="0" >
<tr class="contactDetail">
<td width="10%" class="table_grid1" rowspan="4">
<div class="contactDetail">
<select name="lstProviderLeft" size="7" style="width:111">
<option> PDP</option>
<option> Net</option>
<option> Par</option>
<option> Non-Par</option>
</select>
</div>
</td>
<td width="20%" bgcolor="#FFFFFF" class="contactDetail">
<input type="button" value=" > " name="btnLtrProvider" class="button" onclick="moveValue(lstProviderLeft,lstProviderRight)">
</td>
<td width="10%" bgcolor="#FFFFFF" rowspan="4" class="contactDetail"> <font face="Arial, Verdana, Helvetica, sans-serif" size="2" >
<select name="lstProviderRight" size="7" style="width:111"></select>
</font></td>
<tr>
<td width="8%" class="contactDetail">
<input type="button" value=" >> " name="btnLtrAllProvider" class="button" onclick="moveAll(lstProviderLeft,lstProviderRight)" >
</td>
</tr>
<tr>
<td width="8%" class="contactDetail">
<input type="button" name="btnRtlProvider" value=" < " class="button" onclick="moveValue(lstProviderRight,lstProviderLeft)" >
</td>
</tr>
<tr>
<td width="8%" class="contactDetail" height="22">
<input type="button" name="btnRtlAllProvider" value=" << " class="button" onclick="moveAll(lstProviderRight,lstProviderLeft)" >
</td>
</tr>
</table>
<p align = "center"> <input type="button" value=" OK " onclick="reloadPageOK()">
The page is working fine. That is we can move the values in the left field to right as single or group.After submitting I need to get the values in the left & right fields respectively.
I have used the method
request.getParameterValues("lstProviderLeft");
and pointed this to an array of strings,but it returns 'null' .
How can I solve the above problem....Post your comments on this issue
Thanking uprobably the request.getParmeterValues will not work in this case as the name of the 2 select boxes are different....
You can do this utility by using Javascript....concantinate the values of the 2 select boxes and put the concantinated strings (with a delimiter) in two hidden fields and capture the same fields in the target JSP/Servlet.
I have modified ur code...have a look...
--------------------Start-----------------
<html>
<head></head>
<title></title>
<body>
<script language="Javascript">
function reloadPageOK()
document.product.method="post" ;
document.product.action="./TheSamePage.jsp?status=OK" ;
document.product.submit();
function moveValue(from,to)
if(from.selectedIndex>=0)
var text=from[from.selectedIndex].text;
var length= to.length ;
to[length]=new Option(text,from.value,false,false);
from.remove(from.selectedIndex);
function moveAll(from,to)
if(from.length>0)
var menutext="";
var i;
var len=from.length;
for(i=0;i<len;i++)
from.selectedIndex=0;
menutext=from[0].text ;
var length= to.length;
to[length]=new Option(menutext,from.value,false,false) ;
from.remove(from.selectedIndex);
function fnSubmitPage(from,to)
var strfromSelBox = "";
var strtoSelBox = "";
if(from.length>0)
var len=from.length;
for(var i=0;i<len;i++)
strfromSelBox=strfromSelBox+":"+from.text ;
if(to.length>0)
var len=to.length;
for(var i=0;i<len;i++)
strtoSelBox=strfromSelBox+":"+to[i].text ;
document.product.hdFromValue.value=strfromSelBox;
document.product.hdFromValue.value=strtoSelBox;
document.product.method="post" ;
document.product.action="" ;//Name of the JSP or servlet wherever u want to direct to....
document.product.submit();
</script>
<form name="product">
<input type="hidden" name="hdFromValue">
<input type="hidden" name="hdToValue">
<table width="100%" border="0" cellspacing="0" >
<tr class="contactDetail">
<td width="10%" class="table_grid1" rowspan="4">
<div class="contactDetail">
<select name="lstProviderLeft" size="7" style="width:111">
<option> PDP</option>
<option> Net</option>
<option> Par</option>
<option> Non-Par</option>
</select>
</div>
</td>
<td width="20%" bgcolor="#FFFFFF" class="contactDetail">
<input type="button" value=" > " name="btnLtrProvider" class="button" onclick="moveValue(lstProviderLeft,lstProviderRight)">
</td>
<td width="10%" bgcolor="#FFFFFF" rowspan="4" class="contactDetail">
<font face="Arial, Verdana, Helvetica, sans-serif" size="2" >
<select name="lstProviderRight" size="7" style="width:111">
</select>
</font>
</td>
<tr>
<td width="8%" class="contactDetail">
<input type="button" value=" >> " name="btnLtrAllProvider" class="button" onclick="moveAll(lstProviderLeft,lstProviderRight)" >
</td>
</tr>
<tr>
<td width="8%" class="contactDetail">
<input type="button" name="btnRtlProvider" value=" < " class="button" onclick="moveValue(lstProviderRight,lstProviderLeft)" >
</td>
</tr>
<tr>
<td width="8%" class="contactDetail" height="22">
<input type="button" name="btnRtlAllProvider" value=" << " class="button" onclick="moveAll(lstProviderRight,lstProviderLeft)" >
</td>
</tr>
</table>
<input type="button" value=" OK " onclick="reloadPageOK()">
<input type="button" value=" Submit " onclick="fnSubmitPage(lstProviderRight,lstProviderLeft)">
</form>
</body>
</html>
--------------------Finish---------------
Hope this helps...
Thanks -
Help needed urgently to get the values from the jsp page.
hi,
I am badly stuck into this problem.Please help me and find a solution.
I am using ms-access and jsp.
my database structure is as given below:
m_emp_no | from_date | to_date | approver| status |
1002 | 22/9/2008 | 23/9/2008|1003 |pending
1004 | 29/9/2008 | 30/9/2008|1003 |pending
2044 | 15/9/2008 | 16/9/2008|3076 |pending
now this is exactly a leave apply scenario where a page is displayed and the user has to fill in the details to apply leave.then the approver has to approve that leaves so even, he should get the details in his account.
for example here 1003 has to approve leaves for 1002 & 1004.i am able to fetch data from database for the particular approver here is the coding:
<html>
<body>
<h2 align="center"><u><b><span style="background-color: #FFFFFF"><font color="#C0C0C0" face="Comic Sans MS">Leave
Approval Requests</font></span></b></u></h2>
<form method="POST" name="f1" action="update.jsp">
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:employee_details");
PreparedStatement p=null;
p=con.prepareStatement("select * from emp_leave_application where approver='"+username+"'");
ResultSet r=p.executeQuery();
while(r.next())
%> <table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" bgcolor="#999966"><b><u><%=r.getString(2)%></u></b></td>
</tr>
</table>
<table border="1" width="100%" height="171" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" height="165" valign="top">
<p align="left"><b>User ID</b> :
<input type="text" name="id" value="<%=r.getString(1)%>" size="4
<b>status</b>:<%=r.getString(5)%</p>
<p><b>Leave From</b> : <%=r.getString(2)%></p>
<p><b>Leave From</b> : <%=r.getString(3)%></p>
<p><b>Approve</b> : <select size="1" name="approved">
<option value="Approved">Approved</option>
<option value="Cancelled">Cancelled</option> </select></p>
<%
con.close();
%>
<table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" bgcolor="#999966">
<p align="center"><input type="reset" value="Clear" name="B1">
<input type="submit" value="Submit" name="B2"></td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>{code}
this will display both the rows but when i try to retrieve the values into update.jsp using the code given below it gives me only one value which is the first 1002.
{code}approved=(String)request.getParameter("approved");
id=(String)request.getParameter("id");{code}
but i need both the values to be inserted into the update.jsp only then the approver will be able to approve the leaves individually with respect to the m_emp_no.
please help me out.
thanks in advance.My comments below are all between (((((( and ))))))
<html>
<body>
<h2 align="center"><u><b><span style="background-color: #FFFFFF"><font color="#C0C0C0" face="Comic Sans MS">Leave
Approval Requests</font></span></b></u></h2>
<form method="POST" name="f1" action="update.jsp">
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:employee_details");
PreparedStatement p=null;
p=con.prepareStatement("select * from emp_leave_application where approver='"+username+"'");
ResultSet r=p.executeQuery();
while(r.next())
%> <table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" bgcolor="#999966"><b><u><%=r.getString(2)%></u></b></td>
</tr>
</table>
<table border="1" width="100%" height="171" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" height="165" valign="top">
<p align="left"><b>User ID</b> :
<input type="text" name="id" value="<%=r.getString(1)%>" size="4
((((((( in the statement above, name="id" should be changed to something like name="id"<%=ii%>
Where ii is a counter that tells you how many times you have gone through the loop so far.
The reason for this is that each textfield you generate must have a unique name rather than all have the same name
such as 'id'. This change will give them names such as id0, id1, id2. Then when you submit the page, you can uniquely
identify each input textfield.))))))
<b>status</b>:<%=r.getString(5)%</p>
<p><b>Leave From</b> : <%=r.getString(2)%></p>
<p><b>Leave From</b> : <%=r.getString(3)%></p>
<p><b>Approve</b> : <select size="1" name="approved">
(((( the above select also has to have a unique name for each time through the loop. Change it to name="approved"<%=ii%>
<option value="Approved">Approved</option>
<option value="Cancelled">Cancelled</option> </select></p>
<%
con.close();
%>
<table border="1" width="100%" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF">
<tr>
<td width="100%" bgcolor="#999966">
<p align="center"><input type="reset" value="Clear" name="B1">
<input type="submit" value="Submit" name="B2"></td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</body>
</html>
(((((((note you would be better off long term to put your business logic in a servlet and dispatch to the JSP page which will only have the responsiblity to display the data.
Also, connection pooling is better than the above. -
How to get the value in one JSP page to another?
Hi,
I have problems in passing the value around in JSP. I have two JSP pages as below:
test1.jsp
I try to get the vaule from my textbox by using:
String strUser = request.getParameter ("strUserName");
Then i print out by using: out.print(strUser); then i can get the value and put on my page (For example, i get ABC on my page).
test2.jsp
Next, i want to get the value from strUser (which mean that the one i already display on page in test1.jsp, ABC) to insert into my table by using INSERT INTO statement. Then i try by using
String strUser1 = request.getParameter ("strUser");
Is it possbile for me to do that? I cannot get anything to insert into my table. Then i tried out.print(strUser1); then i found that i get NULL value.
Could you please give me some guidance?
Thanks you very much for any advise you may give me.
KimsanHi,
Thank you very much for your help. It's working fine if i just get a one value to another page, however, i have problem while i pass the value in my loop to another page because i always get the last record. I try with the following code:
logged_page.jsp
<html>
<head>
<title>Welcome to the online Auction...</title></head>
<body>
<%@ page language ="java" import = "java.io.*, java.lang.*, java.sql.*" %>
<% try
String strUsername = request.getParameter("username");
session.setAttribute("myUserName", strUsername);
String strPassword = request.getParameter("password");
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
Connection myConn = DriverManager.getConnection("jdbc:odbc:Driver={MicroSoft Access Driver (*.mdb)};DBQ=C:/Auction/Auction.mdb");
String strSQL = "SELECT [UserName], [Password] FROM tblUserDetails where [UserName] = ? and [Password] = ?";
PreparedStatement statement = myConn.prepareStatement(strSQL);
statement.setString(1, strUsername);
statement.setString(2, strPassword);
ResultSet myResult = statement.executeQuery();
if(myResult.next())
//out.println("Login Succesful! A record with the given user name and password exists");
out.print("<center><h1>");
out.print("Welcome ");
out.print(strUsername);
out.print("</h1></center>");
out.print("<center>");
out.print("<BR><BR>");
out.print("<font font face = Viner Hand ITC size= 5>Products on sales</font>");
out.print("<BR><BR>");
Statement myStatement = myConn.createStatement ();
ResultSet myResult1 = myStatement.executeQuery("SELECT * FROM tblProduct");
ResultSetMetaData myResultSet = myResult1.getMetaData();
out.println("<font face=Tahoma>");
out.print("<table border=1 CELLSPACING=0>");
out.print("<TR>");
out.print("<TD width = 200> Item Title");out.print("</TD>");
out.print("<TD width = 200> Description");out.print("</TD>");
out.print("<TD width = 200> Current bid");out.print("</TD>");
out.print("<TD width = 200> Available Time");out.print("</TD>");
out.print("<TD width = 200> Place Bid");out.print("</TD>");
out.print("</TR>");
out.print("</table>");
while(myResult1.next())
String strProName = myResult1.getString(1);
session.setAttribute("myProName", strProName);
out.print("<table border=1 CELLSPACING=0>");
out.print("<TR>");
out.print("<TD width = 200>");
out.println(strProName);
out.print("</TD>");
out.print("<TD width = 200>");
out.println(myResult1.getString(3));
out.print("</TD>");
out.print("<TD width = 200>");
out.println(myResult1.getString(2));
out.print("</TD>");
out.print("<TD width = 200>");
out.println(myResult1.getString(4));
out.print("</TD>");
out.print("<TD>");
out.print("<form action=bid_page.jsp method=post>");
out.print("<input type=text name=place_bid>");
out.print("<input type=submit name=okfunc value=Bid>");
out.print("</TD>");
out.print("</form>");
out.print("</TR>");
out.print("</table>");
out.println("</font>");
out.print("</center>");
else
out.print("<center>");
out.print("Sorry ");
out.print("<font color = RED size = 5>");
out.print(strUsername);
out.print("</font>");
out.print(" could not be found.");
out.print("</center>");
myResult.close();
statement.close();
myConn.close();
catch(SQLException e)
out.println(e);
%>
</body>
</html>
bid_page.jsp
<HTML>
<HEAD>
<TITLE>Welcome to the online Auction...</TITLE>
</HEAD>
<BODY>
<%@ page language ="java" import = "java.io.*" import = "java.lang.*" import = "java.sql.*" %>
<% try
String thisUserName = (String) session.getAttribute("myUserName");
String thisProName = (String) session.getAttribute("myProName");
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
Connection myConn = DriverManager.getConnection("jdbc:odbc:Driver={MicroSoft Access Driver (*.mdb)};DBQ=C:/Auction/Auction.mdb");
PreparedStatement myStatement = myConn.prepareStatement("INSERT INTO tblHistory VALUES ('"+thisUserName+"', '"+thisProName+"', '"+request.getParameter("place_bid")+"')");
myStatement.executeUpdate();
myConn.commit();
myStatement.close();
myConn.close();
catch(Exception e){}
%>
</BODY>
</HTML>
When i click on the BID button in the logged_page.jsp then i always get the last record and save into my table and that is not what i want to. i want to get the result on the same row as the BID button that just click and save to my table.
Could you please advise?
Thanks you very much for your time and any consideration you may give me.
Best Regard,
Kimsan -
Get Javascript Value in a JSP page
Let's say this is my javascript function in a html page
.<head>
<!-- Function getFields -->
function getFields(){
if (row >= 0){
for(var i=0; i<costForm.elements.length; i++){
if(costForm.elements.type == "text" || costForm.elements[i].type == "hidden"){
dynTableFields[i] = (costForm.elements[i].value)? costForm.elements[i].value : "";
if(costForm.elements[i].type == "select-one"){
dynTableFields[i] = costForm.elements[i].selectedIndex;
</head>
How do i get the costForm.elements.length value in another jsp page. Coz the html page has dynamic rows by the users. and i need the values in the jsp page to know how many rows the user created.
using normal request.getParameter("costForm.elements.length") doesn't workrequest.getParameter() will only get data that's been submitted thru a form or the query string of a URL. You'd have to record the length in a hidden field to read it on the back end, and then you can't just loop thru the fields like that in JSP on the server anyway, unless you have all fields named with a prefix and number, like: field1, field2, field3, etc.
-
In producing a report table, for example, I'd like to have the JSP page access the
rowset from the Bean and then walk through the rowset a row at a time, formatting
output. All the examples I've found create the table code in the servlet. I'd like to
avoid that, creating the html in the JSP page only.hi,
I think You can do it in this way.
Store the values that you get from rowset in a hash table and set the return type of your bean method to hashtable. When you call the method in jsp assign the return value to a hash table. From there you can manipulate the objects in hash table.
Hope this works,
chandu -
How do I get the bean property to JSP page for use in a Scriplet
Hi all,
I am new to JSF and would like to know how can I get the Bean property to a JSP page and then use that property to dynamically display the contents.
Thank in advance,Hi,
I think the following page will be helpfull.
http://java.sun.com/developer/technicalArticles/javaserverpages/JSP20/
Akif
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