Jsp & java

Hi,
can I write a java program (.class file) working with swing and called by jsp page (.jsp)

Yes, theorotically there's nothing that will prevent you from doing so. After all, its still a java class. But be prepared to see the swing ui appearing to the server admin (on the server machine) rather than the client viewing your controls :)
Seriously, if you want to develop richer clients, jsf is the way to go (atleast the promised one)
cheers,
ram.

Similar Messages

Integration of PL/SQL and JSP (Java Server Pages)

I need to match a web application developed with PL/SQL with another developed in JSP (Java Server Pages) the problem is that the two apps interact with the same databese, an share de same users, I need to know how to get the user and password loged into pl/sql when the user want to use same of de .jsp pages running on another application server?

Hi Michael Vstling,
Did you try the java classes library (SDOAPI) that can be downloaded from OTN?
It may provide you with a better alternative when manipulating geometries in the Java space. There is an adapter in SDOAPI which can convert a JDBC STRUCT object into Java Geometry object defined in SDOAPI, and vice versa.
There are at least two ways in mixing PL/SQL and Java. The first one, as you mentioned, is to define your custom function in terms of PL/SQL and call it from within your Java program. With SDOAPI, you have the second option, which is to define your own functions in Java using SDOAPI and deploy them as Java stored procedures in db. You can then call them from within your PL/SQL code. In either way performance depends on a lot of things and generally it requires a "try and improve" approach.
About JPublisher and sdo_ordinate_array it may not be a spatial related problem. Did you try search the Java-related forums first?
LJ

How to create two level dynamic list using JSP , Java Script and Oracle

I am new in JSP. And i am facing problem in creating two level dynamic list using JSP ,Java Script where the listdata will come from Oracle 10g express edition database. Is there any easy way in JSP that is available on in ASP.NET.
Plz response with details.

1) Learn JDBC API [http://java.sun.com/docs/books/tutorial/jdbc/index.html].
2) Create DAO class which contains JDBC code and do all SQL queries and returns or takes ID's or DTO objects.
3) Learn Servlet API [http://java.sun.com/javaee/5/docs/tutorial/doc/].
4) Create Servlet class which calls the DAO class, gets the list of DTO's as result, puts it as a request attribute and forwards the request to a JSP page.
5) Learn JSP and JSTL [http://java.sun.com/javaee/5/docs/tutorial/doc/]. Also learn HTML if you even don't know it.
6) Create JSP page which uses the JSTL c:forEach tag to access the list of DTO's and iterate over it and prints a HTML list out.
You don't need Javascript for this.

What're the differences between JSP, Java Script, and Java Applet?

I am confused by the concepts: JSP (Java Server Page), Java Script, and Java Applet? What are their main differences?

I don't know about differences, but one of their main similarities is that each of them has a page in Wikipedia.
JSP
JavaScript
[Java applet|http://en.wikipedia.org/wiki/Java_applet]
There. That should give you enough information.

Do all JSP/Java bean webapps need an xml file?

Hi all,
I have a jsp/ java bean webb application. This is being run on Resin at
Lunarpages.
The site has been shut down due to 'class-loader' not found. I was told it
was causing problems for other java users on the server.
I realise this is limited information but any insight would be welcome.
This is our first JSP / java bean web app.
Also if anyone could tell me briefly the purpose of an xml document in a JSP/Java bean webapplication I would greatly appreciate it.
Thanks in advance
Regards
Jim

Hi there,
Thanks for the reply.
Our application allows people to purchase wedding pictures online. It ran locally on resin we then had to change all the relative file paths in order to deploy it on lunarpages.
Lunarpages use resin also.
We had the application tested and working on Lunarpages for the last week .This morning they sent us a message saying they had shut our JSP pages down as our application was causing problems for other java users. errant code unknown element ' class-loader' .
Not too much help from lunarpages...
thanks

JSP & Java Mail

Hai Buddies,
I don't know about JSP (only little bit), Iwant to create a page in jsp any one plzzz help me i will give the details about the the page ie given below..
The page containning
--number, name contacts, comments ,action plan,dre name,lead name
--when i stores the above details to the database a mail is sent to the dre and the lead respectively
--Using JSP & Java Mail

There is a forum on java database connectivity
http://forum.java.sun.com/forum.jspa?forumID=48
A forum on java mail
http://forum.java.sun.com/forum.jspa?forumID=43
There are loads of tutorials on the sun site and elsewhere, you need to read these and start coding. No-one is going to write this for you.
Before posting questions use the search bar to the left, most of the questions you ask have been dealt with MANY times before, you will find code quickly using the search facility, saving you a lot of time.

JSP/Java vs ASP/VB Pay Difference

Hi all I have been looking at the pay for jsp/java vs asp/vb developers. I have found that for years it has been the same .
For a person with say 3-4 years of either the salary tops tends to be comparable.
Can anyone confirm this ?
Does anyone know why ?
I have found it strange because it appears to me that Java is a much more challenging language.
stephen

Because the value delivered by the developers you mention and their scarcity is almost identical, from a business perspective. Not only that but learning enough Java basics to write JSPs is not as nearly as challenging KNOWING Java enough to write a full-fledged, industry strength application. Good luck!

Column Not found error while trying to access databse through JSP+Java Bean

I am trying to acees MS Access 2003 db through JSP using Tomcat 5.0.28.The code for accessing the databse is incorporated in the bean.The jsp only calls the particular method of the bean .
Code for Java Bean:
package ActiveViewer;
import java.sql.*;
import java.util.*;
public class CompanyBean
Connection con;
ResultSet rs=null;
Statement st;
     public CompanyBean(){}
     public void connect()
     try
     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
System.out.println("Here4");
con=DriverManager.getConnection("jdbc:odbc:activeviewer","","");
     System.out.println("Here1");
     catch (ClassNotFoundException e)
     System.out.println("Could not locate driver.");
catch (SQLException e)
System.out.println("An SQL Exception has occured :: "+e);
     e.printStackTrace();
     catch (Exception e)
System.out.println("An unknown Exception has occured :: "+e);
     e.printStackTrace();
public void disconnect()
     try
     if (con!=null)
con.close();
     catch (SQLException e)
System.out.println("An SQL Exception has occured :: "+e);
     e.printStackTrace();
public ResultSet select(String username)
if(con!=null)
     try
st=con.createStatement();
     rs=st.executeQuery("select * from company where username='" + username + "'");
catch (SQLException e)
System.out.println("An SQL Exception has occured :: "+e);
     e.printStackTrace();
catch (Exception e)
System.out.println("An Exception has occured while retrieving :: "+e);
e.printStackTrace();
else
System.out.println("Connection to database was lost.");
return rs;
The code for JSP that uses the above bean is:
<%@ page language="java" import="java.sql.*,ActiveViewer.* " contentType="text/html"%>
<jsp:useBean id="conn" scope="session" class="ActiveViewer.CompanyBean" />
<html>
<body>
<% String username=request.getParameter("username");
String password=request.getParameter("password");
System.out.println("username:"+username);
System.out.println("password:"+password);
conn.connect();
ResultSet rs=conn.select(username);
System.out.println("Below select ");
while (rs.next())
String dbusername=rs.getString("username");
     String dbpassword=rs.getString("password");
     if(dbusername.equals(username) && dbpassword.equals (password))
{ %> out.println("OK");
          <% }
else { %>Invalid Username and / or Password.
<br>Clickhere to go back to Login Page.
<% }
} %>
</body>
</html>
I get the following error:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Column not found
though the database is not int he same folder as the jsp, the DSN is set correctly to pint to the db location.The jsp does print in stdout file:
Here4 (from connect method above)
Here 1 (from connect method above)
Below Select (from jsp)
This means that the jsp does connect to db but it gives the above error.Also the field name also matches that in the database and data is present in the db too.
All other things like creating package for bean,incorporating the packakage are done.
Can someone please help me with their precious advice?

U're getting this error because there is no field called 'password' in ur database, the field in ur database is named 'cpassword' and not 'password'. So change the statement rs.getString("password"); to rs.getString("cpassword");

Column Not found error while trying to access database through JSP+Java Bea

I am trying to access MS Access 2003 db through JSP using Tomcat 5.0.28.The code for accessing the database is incorporated in the bean.The JSP only calls the particular method of the bean .
Code for Java Bean:
package ActiveViewer;
import java.sql.*;
import java.util.*;
public class CompanyBean
Connection con;
ResultSet rs=null;
Statement st;
public CompanyBean(){}
public void connect()
try
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
System.out.println("Here4");
con=DriverManager.getConnection("jdbc:odbc:activeviewer","","");
System.out.println("Here1");
catch (ClassNotFoundException e)
System.out.println("Could not locate driver.");
catch (SQLException e)
System.out.println("An SQL Exception has occured :: "+e);
e.printStackTrace();
catch (Exception e)
System.out.println("An unknown Exception has occured :: "+e);
e.printStackTrace();
public void disconnect()
try
if (con!=null)
con.close();
catch (SQLException e)
System.out.println("An SQL Exception has occured :: "+e);
e.printStackTrace();
public ResultSet select(String username)
if(con!=null)
try
st=con.createStatement();
rs=st.executeQuery("select * from company where username='" + username + "'");
catch (SQLException e)
System.out.println("An SQL Exception has occured :: "+e);
e.printStackTrace();
catch (Exception e)
System.out.println("An Exception has occured while retrieving :: "+e);
e.printStackTrace();
else
System.out.println("Connection to database was lost.");
return rs;
The code for JSP that uses the above bean is:
<%@ page language="java" import="java.sql.*,ActiveViewer.* " contentType="text/html"%>
<jsp:useBean id="conn" scope="session" class="ActiveViewer.CompanyBean" />
<html>
<body>
<% String username=request.getParameter("username");
String password=request.getParameter("password");
System.out.println("username:"+username);
System.out.println("password:"+password);
conn.connect();
ResultSet rs=conn.select(username);
System.out.println("Below select ");
while (rs.next())
String dbusername=rs.getString("username");
String dbpassword=rs.getString("password");
if(dbusername.equals(username) && dbpassword.equals (password))
{ %> out.println("OK");
<% }
else { %>Invalid Username and / or Password.
<br>Clickhere to go back to Login Page.
<% }
} %>
</body>
</html>
I get the following error:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Column not found
though the database is not int he same folder as the jsp, the DSN is set correctly to pint to the db location.The jsp does print in stdout file:
Here4 (from connect method above)
Here 1 (from connect method above)
Below Select (from jsp)
This means that the jsp does connect to db but it gives the above error.Also the field name also matches that in the database and data is present in the db too.
All other things like creating package for bean in WEB-INF/classes,incorporating the packakage are done.
Can someone please help me with their precious advice?

Hi, I too have a problem with an SQL exception, the message is Column not found.
I'm using the sun jdbc odbc driver with access.
the first few lines of the stack trace are
sun.jdbc.odbc.JdbcOdbcResultSet.findColumn(JdbcOdbcResultSet.java:1852)
sun.jdbc.odbc.JdbcOdbcResultSet.getInt(JdbcOdbcResultSet.java:603)
net.homeip.sdaniels.MemberBean.ejbFindByUnamePwd(MemberBean.java:127)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
I am of course sure that the column does infact exist. I can insert into the column no problems. the sql looks like this:
SELECT * FROM Members WHERE uName ='Stewart' AND encPwd='�F2C�3��h�1Y�'
Can any one tell me if there is a common cause to this problem?
Thanks

Is there a way to use bpm object in jsp (java)

hello
i could see that the bpm object can be used in jsp with javascript and fuego tag. but is there a way to use bpm object with java code?
thank you!

Suppose a Servlet/JSP calls java classes. In the java
functions of those classes, is there a way to get and
set attributes with application/session scope
directly? Thanks.Only by passing a reference to those classes (or by tying in to the framework/container).

Jsp,java script and html

Friends I want to try something but I am totally lost on how to achieve it.Just to let u know that I have not worked in JAVASCRPT at all.And I am in great hurry to finish this work.
What I am looking for is after
1) a JSP page is thrown
2) a button is clicked
3)Moment the button is clicked I want a HTML file to be created (having all the info from the database) by using FileWriter class .After the HTML file is created and ready ,Then I want to open this HTML file in another window.
I know that to achieve this I have to use Javascript,but I am totally lost on how to do that.
I mean can I say in JAVASCRIPT that if this button is clicked then execute a java method which retrives data from the oracle database in the server and writes it to a HTML file and then after the writing is done,open it another window.
Please help.

Friends I want to try something but I am totally lost on how to achieve it.Just to let u know that I have not worked in JAVASCRPT at all.And I am in great hurry to finish this work.
What I am looking for is :
1) a JSP page is thrown
2) a button is clicked
3)Moment the button is clicked I want a file to be created with an extension HTML (having all the info from the database) by using FileWriter class .After the file is created and ready ,Then I want to open this file in another browser window.
I know that to achieve this I have to use Javascript,but I am totally lost on how to do that.
I mean can I say in JAVASCRIPT that if this button is clicked then execute a java method which retrives data from the oracle database in the server and writes it to a HTML file and then after the writing is done,open it another window.
Please help.

How to save and retrieve an image in JSP/Java and MS SQL/server 2000?

Hi All,
I am uploading an image from the JSP page and want to store it in MS SQL server. I have made a column by the name "COMPANY_LOGO" with data type as image MS SQL/server 2000. How do I save the full image in the table and how do I display the thumb nail image on the JSP page???
Regards,
Raj

BEFORE YOU POST A TOPIC HERE: Please be sure your topic is related to features or functionality of this site. This forum is not for general technology questions. Not sure which forum to use? Try searching for your topic in the "Search Forums" element on the left panel.
Post your question in
http://forum.java.sun.com/forum.jspa?forumID=45
or
http://forum.java.sun.com/forum.jspa?forumID=48
Do not reply here

Using JSP / Java to write/create an xml file

I have been looking around the internet and in my books and I cannot find a good example of JAVA/JSP writing an XML file. I already have a recursive method that will generate the xml .. what's missing in my code now is how am i goin to append or write that xml string into an existing file..
suppose i have this xml string
String xmlString = "<?xml version="1.0"?><txn><test>this is just a test</test></txn>";
FileOutputStream fos = new FileOutPutStream(C://files/sample.xml);
now , how i will write the xmlString into sample.xml file...
Any suggestions/ ideas/ tutorial links would be deeply appreciated.. thx!

never mind.. my code is workin now..

JSP + JAVA Beans +Torque

Hey,
I am using Torque to connect MySQL DB to JSP page, so I am using JAVA Beans, which is created by torque, I wish to use pagination to retrieve the entries from database, plz tell me how can I implement it here.

Try the following forum (about JSP technology)
http://forum.java.sun.com/forum.jspa?forumID=45
Also try the following forum (about JDBC technology)
http://forum.java.sun.com/forum.jspa?forumID=48

NWDS - JSP & Java

Experts,
THis is for CRM. I have a button called 'Go' in JSP (developed using NWDS)
1. When I click on the button, how can I capture the events?
2. After clicking on the event, I need to call the Java class to perform some backend activity. Pls guide me how?
3. After this, goto next page called result.jsp.
I've gone thro, "Development and Extension Guide u2013 SAP E-Commerce 7.0", but I dont understand how to intergrate the JSP & actions.
Please advise with steps & code..Appreciate your help..
BM

Hello there,
The simplest way I would recommend will be create a web module project in NWDS.[File ->New Web Module Project]
Create 2 JSP pages in the webproject[ A.jsp and B.jsp]
The first JSP page will have tags like this.
<body>
     <form action="B.jsp">
     <button >Submit </button>
        </form>          </body>
Once the Submit button is submitted the execution goes to the 2nd JSP page as provied as submit.jsp here.
In the second JSP page you can read the parameters from first page and perform the Java Operation. Also you can make use of Java Beans for the back end call. After this you can forward it to a another page.
Java Beans with code sampe http://www.exampledepot.com/egs/javax.servlet.jsp/usebean.jsp.html
Also check this for the entire set of JSP examples http://www.exampledepot.com/egs/javax.servlet.jsp/pkg.html
Let me know if you need any further information
Regards,
Vivek

Jsp & java

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