JSP and JavaBeans...

Hi,
I have a JavaBean(class file) and iam able to use it,when i kept the
filename.class in the "root_dir/webapps/ROOT/WEB-INF/classes" directory and
myJsp.jsp file in "root_dir/webapps/ROOT" directory.
But not,when it is in the follwoing Directories
.class file in "root_dir/webapps/ROOT/WEB-INF/classes" (No change)
.JSP file in "root_dir/webapps/ROOT/myDir" (/myDir/myJsp.jsp)
In my JSP file iam calling Bean as follows
<jsp:useBean id="mybean" scope="session" class="bean.class" />
(not giving .class extension)
and executing the program like this "http://localhost:8080/myDir/myJsp.jsp"
Iam using Apache Tomcat 3.3a webserver,
what is the path that i have to give in the class attribute of <jsp:useBean>?
Thanks in Advance..
Regards
Rao

I got it...
Rao.

Similar Messages

Jsp and JavaBean problem

Hi All,
I need UR help
Problem:
I have a javaBean and a jsp page say test.class and test.jsp respectively.
Now the problem is when i run my jsp in web browser with path
http://localhost:8080/mypackage/test.jsp and use test.class in it. It give me an error Class test.class Not Found but when i give the path http://localhost:8080/examples/jsp/parentpackage/mypackage/test.jsp
it works fine.
I am using Tomcat 3.2 and i have already made changes in server.xml for my jsp files thats why i can run my programs with the earlier path but dont know why its giving the error when i use javabean,
Also i have put my javabean class in---parentpackage/mypackage/test.class
Thanks
Amit

hi there,
Thanks for you time, here i have placed the source for jsp and javabean
Please excuse me if you find the code unproper
Code for JSP:
<%
response.setHeader("Pragma","No-cache");
response.setDateHeader("Expires",0);
response.setHeader("Cache-control","No-cache");
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Internal Clarification-Agent View</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body background="images/c.jpg" bgproperties="fixed">
<%@ page language="java" import="java.sql.*" %>
<%@ page import="javax.servlet.*" %>
<%@ page import="java.io.*" %>
<%@ page import="java.util.*" session="true"%>
<%@ page import="java.util.Date" %>
<%@ page import="java.sql.Timestamp" %>
<%@ page import="java.text.*" %>
<%@ page import="java.lang.*" %>
<%@ page import="javax.servlet.http.*"%>
<jsp:useBean id="navi" class="arvato.interclarification.rqchunk" scope="session" />
<%
try{
Connection con = null;
PreparedStatement ps = null;
PreparedStatement ps1 = null;
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con = DriverManager.getConnection("jdbc:odbc:interdsn","","");
String qrno = request.getParameter("qrno");
String rdb = request.getParameter("rb");
String key = request.getParameter("key");
String cname = request.getParameter("cname");
//out.print(key);
//if(st.equals("All")){
String sql="";
if(rdb!=null){
if(rdb.equals("1")){
if(qrno==null||qrno.equals("")){
sql = "SELECT * FROM crequired ORDER BY adate DESC";
else if(qrno!=null){
sql = "SELECT * FROM crequired WHERE queryno LIKE '"+qrno+"%'";
}else if(rdb.equals("2")){
if(key==null||key.equals("")){
sql = "SELECT * FROM crequired ORDER BY adate DESC";
else if(key!=null){
sql = "SELECT * FROM crequired WHERE clarification LIKE '"+key+"%'";
else if(rdb.equals("3")){
if(cname==null||cname.equals("")){
sql = "SELECT * FROM crequired ORDER BY adate DESC";
else if(cname!=null){
sql = "SELECT * FROM crequired WHERE fname LIKE '"+cname+"%'";
if(rdb==null)
sql = "SELECT * FROM crequired ORDER BY adate DESC";
ps = con.prepareStatement(sql,ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
//ps.setString(1,space);
/*}else{
sql = "SELECT * FROM crequired WHERE status=? AND space=?";
ps = con.prepareStatement(sql);
ps.setString(1,st);
ps.setString(2,space);
ResultSet rs = ps.executeQuery();
%>
<table width="100%" border="0" cellspacing="0">
<tr>
<td width="50%"><strong><img src="images/microsoftlogo1.jpg" width="288" height="94"></strong></td>
<td width="50%"><div align="right"><strong><img src="images/logo2.jpg" width="177" height="77"></strong></div></td>
</tr>
</table><br>
<hr noshade color="#000000">
<div align="center"><font color="#990000" size="4" face="Verdana, Arial, Helvetica, sans-serif"><strong>CSR
VIEW</strong></font>
</div>
<form name="form" method="post" action="agentview1.jsp">
<table width="59%" border="1" align="center" cellpadding="2" cellspacing="0">
<tr>
<td width="49%"><font size="2" face="Verdana, Arial, Helvetica, sans-serif"><strong>
<input name="rb" type="radio" value="1" <%if(rdb!=null){if(rdb.equals("1")){out.print("checked");}}%>>
<font size="1">SEARCH BY QUERY NUMBER:</font></strong></font></td>
<td width="51%"><input name="qrno" type="text" id="qrno"></td>
</tr>
<tr>
<td><strong><font size="2" face="Verdana, Arial, Helvetica, sans-serif">
<input type="radio" name="rb" value="2" <%if(rdb!=null){if(rdb.equals("2")){out.print("checked");}}%>>
<font size="1"> SEARCH BY KEY WORD:</font></font></strong></td>
<td><input name="key" type="text" id="key"></td>
</tr>
<tr>
<td><input type="radio" name="rb" value="3" <%if(rdb!=null){if(rdb.equals("3")){out.print("checked");}}%>>
<strong><font size="1" face="Verdana, Arial, Helvetica, sans-serif">SEARCH
BY CSR NAME:</font></strong></td>
<td><input name="cname" type="text" id="cname"></td>
</tr>
<tr>
<td colspan="2"><div align="center">
<input type="submit" name="Submit" value="Submit">
</div></td>
</tr>
</table>
</form><br>
Back
<%
navi.setchunk(10);
navi.setRS(rs);
String v="";
String vv=request.getParameter("off");
if(vv==null){v="1";}
else{
v=vv;
int i=Integer.parseInt(v);
navi.setcursor(i);
ResultSet rs2=navi.getRS();
int h1=1;
if(request.getParameter("off")!=null) h1=Integer.parseInt(request.getParameter("off"));
int h2= navi.getchunk();
int h3= navi.getcount();
int offset=(h3-h1)<h2?h3:(h1+h2-1);
%>
<table width=100%><tr><td width=33%> </td><td align=center width=34%><font face="verdana, arial" size=2 color=#000000>Displaying <%=h1%> to <%=offset%> of <font size=4><%=h3 %></font></font></td><td width=33%> </td></tr></table>
<%
int c1=navi.getcount(),c2=navi.getchunk();
int c3=navi.getcursor();
int c4=c3+c2;
int c5=c3-c2;
%>
<table width=100% ><tr><td align=left width=100% >
<%
if(c3>c2 && c3<=c1){
out.print("<a href=\"agentview1.jsp?n=y&off="+c5+"\">Previous</a>");
%></td><td align=right width=100%>
<%
if(c1>c2 && (c1-c3)>=c2){
out.print("<a href=\"agentview1.jsp?n=y&off="+c4+"\">Next</a>");}
%>
</td></tr></table>
<table width="1359" border="0" cellspacing="1">
<tr bgcolor="#3C6C84">
<th width="2%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">S.No.</font></th>
     <th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Query No</font></th>
<th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Clarification
Posting Date & Time</font></th>
     <th width="3%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Posted
By</font></th>
<th width="6%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Received
By</font></th>
<th width="3%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Sub
Process </font></th>
     <th width="4%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Region</font></th>
<th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Status</font></th>
<th width="15%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Clarification
Required OnQuery </font></th>
<th width="18%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Solution</font></th>
<th width="8%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Date
& Time Visited On</font></th>
<th width="7%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Date
& Time Closed On</font></th>
<th width="5%"><font color="#FFFFFF" size="1" face="Verdana, Arial, Helvetica, sans-serif">Remarks</font></th>
</tr>
<%
int m = 0;
for(int l=0;l<c2 && i<=c1;l++,i++){
//while(rs.next()){
m = m+1;
String queryno = rs.getString("queryno");
//out.print(queryno);
%>
<tr>
<td bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><b><%=m%></b></font></td>
     <td width="5%" bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><b><%=queryno%></b></font></td>
<td bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1">
<%Date d1 = rs.getDate("adate");
     String dd1="";
     SimpleDateFormat sddf = new SimpleDateFormat("MM/dd/yyyy");
     dd1 = sddf.format(d1);
     Date t1 = rs.getTime("atime");
     String tt1="";
     SimpleDateFormat stdf = new SimpleDateFormat("HH:mm");
     tt1 = stdf.format(t1);
     String ttm = dd1+" "+tt1;
     out.print(ttm);
     %></font>
</td>
     <td bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1">
<b><%String fnm = rs.getString("fname");
String lnm = rs.getString("lname");
String nm = fnm+" "+lnm;
out.print(nm);
%></b></font></td>
<td width="6%" bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%
     String tnm = rs.getString("tname");
     if(tnm.equals("null")||tnm.equals("-")){}else{out.print(tnm);}
     %></font></td>
     <td bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><b><%=rs.getString("space")%></b></font></td>
     <td bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><b><%String rg = rs.getString("region");
     if(rg==null||rg.equals("null")){}else{out.print(rg);}%></b></font></td>
     <%String status = rs.getString("status");
     if(status.equalsIgnoreCase("New")){%><td bgcolor="#FF0000"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#FFFFFF"><b><%=status%></b></font></td>
     <%}else if(status.equalsIgnoreCase("Open")||status.equalsIgnoreCase("Awaiting MS Reply")){%><td bgcolor="#FFCC33"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#FFFFFF"><b><%=status%></b></font></td><%}else{%><td bgcolor="#00CC00"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#FFFFFF"><b><%=status%></b></font></td><%}%>
<td bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#0000CC"><%=rs.getString("clarification")%></font></td>
     <%
//String queryno = rs.getString("queryno");
String qry1 = "select * from csolution where queryno=?";
ps1 = con.prepareStatement(qry1);
ps1.setString(1,queryno);
ResultSet rs1 = ps1.executeQuery();
while(rs1.next()){%>
<td bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%=rs1.getString("solution")%></font></td>
     <td bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%
     Date dp = rs1.getDate("dateofopen");
     String dp1="";
     SimpleDateFormat spdf = new SimpleDateFormat("MM/dd/yyyy");
     dp1 = spdf.format(dp);
     Date tp = rs1.getTime("timeofopen");
     String tp1="";
     SimpleDateFormat stpf = new SimpleDateFormat("HH:mm");
     tp1 = stpf.format(tp);
     String tpm = dp1+" "+tp1;
     out.print(tpm);
     %></font>
</td>
     <td width="5%" bgcolor="#FFFFCC"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%
     Date dc = rs1.getDate("dateofclose");
     String dc1="";
     SimpleDateFormat scdf = new SimpleDateFormat("MM/dd/yyyy");
     dc1 = scdf.format(dc);
     Date tc = rs1.getTime("timeofclose");
     String tc1="";
     SimpleDateFormat stcf = new SimpleDateFormat("HH:mm");
     tc1 = stcf.format(tc);
     String tcm = dc1+" "+tc1;
     out.print(tcm);
     %></font>
</td>
     <td width="16%" bgcolor="#FFE4CA"><font face="Verdana, Arial, Helvetica, sans-serif" size="1"><%String remarks = rs1.getString("remarks");
     if(remarks==null){}else{out.print(remarks);}
     %></font></td>
<%}navi.setcursor();
}con.close();}catch(Exception e){out.print(e);}%>
</tr>
</table><br>
<font size="2" face="Verdana, Arial, Helvetica, sans-serif">Back to
Main Menu</font>
</body>
</html>
Code for javaBean:
package arvato.interclarification;
import javax.servlet.http.*;
import java.sql.*;
public class rqchunk
          ResultSet rs=null;
          int chunk=5;
          int count=0;
          int cursor=1;
          public rqchunk(){}
          public void setRS(ResultSet rset) throws SQLException
               rs = rset;
               int cnt=0;
               while(rs.next())
                    cnt++;
               rs.absolute(1);
               count=cnt;
          public void setcursor()throws SQLException
               cursor++;
               rs.absolute(cursor);
          public void setcursor(int i)throws SQLException
               cursor=i;
               rs.absolute(cursor);
          public int getcursor()
               return cursor;
          public int getchunk()
               return chunk;
          public void setchunk(int i)
               chunk=i;
          public void setcount(int j)
               count=j;
          public int getcount()
               return count;
          public ResultSet getRS()
               return rs;
          public void clearRS()
               cursor=0;
               rs=null;
Please excuse me if my codes are not understandable enough
Thanks
Amit

Help with jsp and javaBean in eclipse/Tomcat

Hi,
I am new to JSP and JavaBean. I am going through tutorial for a jsp page that uses a javaBean. I am using eclipse to create jsp page and the java bean.
My eclipse project "Date" has five package as under:-
1. Deployment Descriptor
2. Java Resources: src
3. build
4. WebContent
I have my data.jsp page in WebContent/WEB-INF/ folder. When I just run date.jsp in a browser as: http://localhost:8080/Date/date.jsp, it gets launched into the browser correctly. But when I add a JavaBean "TimeFormatterBean.java" in the Java Resources:src folder and use it in date.jsp page, I get errors as under:-
org.apache.jasper.JasperException: Unable to compile class for JSP:
An error occurred at line: 5 in the jsp file: /date.jsp
TimeFormatterBean cannot be resolved to a type
2: pageEncoding="ISO-8859-1"%>
3: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
4:
5: <jsp:useBean id="formatter" class="TimeFormatterBean"/>
6:
7: <html>
8: <head>
The data.jsp page is as under:-
<jsp:useBean id="formatter" class="TimeFormatterBean"/>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
     <h1> Date JSP </h1>
     <p> The current time is:
     <%= new java.util.Date() %>
     <jsp:getProperty name="formatter" property="name"/>
     </p>
</body>
</html>I can see "TimeFormatterBean.class" in build/classes folder.
If anyone could please help me out with this, it would be very helpful
Thanks a lot!

You probably should place TimeFormatterBean inside a package, or maybe you could try importing it , even if it�s in the default package, with something like this <%@ page import="TimeFormatterBean" %> at the top

Any CASE tools for Java, JSP, and JavaBeans?

For Java, JSP, and JavaBeans can we find something that can help us automate certain tasks?
For example, CASE tools is an acronym for Computer Aided Software Engineering tools. I have a colleague use software to generate robust code for the database layer and with a few clicks of a button after the database is designed he can generate code that would otherwise take an hour or even hours to write and debug and test.
Thanks for your time and help in advance!
Cecilia

The ones I know are MVCase (from Brazil) and Jude (from Japan). Both are free and I haven't fully tested them yet. It may help you.

JSP and JavaBean simple question, pls help

Hello,
I am new to JSP. I just installed Sun Java Studio Enterprise 8 to create a JSP project. I created a jsp file and java class file in the same project. the class file is in default package. I use <jsp:useBean id="date" class="DateFormatBean"/> in jsp file to call the java class. When I run the jsp page I got the error:
cannot resolve symbol
symbol : class DateFormateBean
if I add a package in the class file, I got the error: package com.mycom.projsp does not exist.
Also I tried to add a jar file into the library and tried to import it in my jsp page, I also got package doesn't exist error.
I know I need to set the classpath and I did it, but still got the error. Could someone help me out? Do I miss some settings? I am using Tomcat.
Thanks in advance!

i'm not familiar with Java Studio Enterprise 8 so i'm not sure how it is organizing its project. However, i know tomcat...and if for test purposes you take your jsp file and put it in $TOMCAT_HOME/webapps/ROOT and your class file and put it in $TOMCAT_HOME/webapps/ROOT/WEB-INF/classes, things should work out. perhaps the web app isn't being organized properly in your tool.
hope that helps.

JSP and JavaBean - Session info and constructors

Hello,
I'm trying to write a simple web page that allows used to login and view thier detail from a DB.
I can't figure few things :
1) why the dalpkg.SayHello class is loaded every time the page is loaded? and how can I change it?
2) In the login page I prompt a login form, what I want to do is :
If a user is already logged on and re-enters this page, the form wont be shown to him, instead he will see some other information.
how can it be done?
I tried to save a global parameter in the class ("Validated") but it seems that every time i re-enter the login page this variable is false.
login jsp page :
<br />
<jsp:useBean class="dalpkg.SayHello" id="info" scope="page"> <br />
<html> <br />
<head> <br />
<title>LOGIN</title> <br />
</head> <br />
<br />
<body> <br />
Users in the system : <%=info.CountRows()%>   <br><br />
<br />
<form name="example" method="get" action="hello.jsp"> <br />
<br><br />
<center> username : <input type="text" name="username"><br />
<br><br> <br />
password : <input type="password" name="password"> <br />
<br><br><br />
<input type="submit" name="sub" value="submit"> </center><br />
</form>     <br />
<%=info.Validated%><br />
</body> <br />
</html><br />
</jsp:useBean>hello jsp page (shows user info) :
<br />
<jsp:useBean id="settings" scope="application" class="dalpkg.SayHello"/><br />
<jsp:setProperty name="settings" property="*"/><br />
<html><br />
<head><br />
<title>Setting UP</title><br />
</head><br />
<body><br />
<center><br />
<h1> Hello!! </h1><br />
<br />
<%settings.Validate(response);%><br />
<br><br />
Fullname : <%=settings.getFullname()%><br />
<br><br />
Gender : <%=settings.getGender()%><br />
<br><br />
Hobby : <%=settings.getHobby()%><br />
<br />
<br><br />
<a href="start.jsp">START</a><br />
<br />
</center><br />
<br />
</body><br />
</html>

and the java bean code :
package dalpkg;
import java.util.*;
import java.sql.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class SayHello
    String Username ="";
    String Password ="";
    String Fullname;
    String Hobby;
    String Gender;
    public boolean Validated = false;
    public void SayHello()
     public void setUsername(String username)
        this.Username = username;
     public void setFullname(String fullname)
        this.Fullname = fullname;
     public void setHobby(String hobby)
        this.Hobby = hobby;
      public void setGender(String gender)
        this.Gender = gender;
     public void setPassword(String password)
        this.Password = password;
    public String ReturnHello()
        return System.getProperty("user.dir");
    public String getUsername()
        return this.Username;
    public String getPassword()
        return this.Password;
      public String getFullname()
        return this.Fullname;
     public String getHobby()
        return this.Hobby;
      public String getGender()
        return this.Gender;
   public String Validate(HttpServletResponse response) throws IOException
          String ReturnValue = "NOT OK";
          if(ValidateUser(getUsername(),getPassword()) != "OK")
                response.sendRedirect("start.jsp");
          else
                try
                     Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                     Connection con=
                                    DriverManager.getConnection("jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=D:\\DB1.mdb;}");
                                Statement stmt=con.createStatement();
                      ResultSet rs=stmt.executeQuery("select fullname,hobby,gender from users where username = '"
                              + getUsername() +"'");
                    while(rs.next())
                                setFullname(rs.getString(1));
                                setHobby(rs.getString(2));
                                setGender(rs.getString(3));
                     this.Validated = true;
                     ReturnValue = Boolean.toString(Validated);
                catch(Exception e)
                     StringWriter sw = new StringWriter();
                    e.printStackTrace(new PrintWriter(sw));
                    String stacktrace = sw.toString();
                    ReturnValue = stacktrace;
          return ReturnValue;
    public String CountRows()
        String ReturnStr;
        int Counter =0;
        try
                   Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
                    Connection con=
                            DriverManager.getConnection("jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=D:\\DB1.mdb;}");
                        Statement stmt=con.createStatement();
                    ResultSet rs=stmt.executeQuery("select *from users");
                    while(rs.next())
                        Counter ++;
                    ReturnStr = Integer.toString(Counter);
        catch( Exception e)
            StringWriter sw = new StringWriter();
            e.printStackTrace(new PrintWriter(sw));
            String stacktrace = sw.toString();
            ReturnStr = stacktrace;
        return ReturnStr;

When to use jsp,and when to use servlet?

I think that jsp and servlet can realize the same functions, because when run a jsp, it is transferred to a servlet program, so when to use jsp and when to use servlet?
I am now developing the input interface for a website, I just use jsp and javabean to connect to weblogic and database, and I didn't use servlet, Is there any unseemliness?
Thank you!

IMHO I use servlets to control the flow between my jsp's based on a number of factors in a webapp. For instance, user authorization. If a user has the authorization to conduct various administrative functions on an application (like change user rights, reset passwords etc) they will have access to specific buttons or links on some screens that others will not. I use servlets to establish what access rights a user has and direct them to the appropriate pages. I also use servlets to test data validity on form input screens. I know that I can also do this with JavaScript but that can be disabled by the client and in order to prevent that I also double check the form input from a servlet. All my jsp's do is display the results of a business process (which is held in a JavaBean or EJB) and the servlets act as the controllers for the application, connecting to multiple databases, verifying application state, flow control etc. I try to keep the jsp as simple as possible as some of them are maintained by html developers who lack the necessary experience to write java code. I hope this helps.

Two JSPs using JavaBeans

Hi,
I have a JSPs and JavaBeans question.
There are two JSP files. One.jsp and Two.jsp.
One.jsp include code that use the JavaBeans from Two.jsp:
<%
     if (bl.getDmlOperation() == NcepConstants.UPDATE) {
Two.jsp have:
<jsp:useBean      id="bl"     class="TestsPrivateBean" scope="session"/>
<%@ include file="One.jsp" %>
When I run this code in TOMCAT, it can run in runtime with no problem.
But the company it now moving to use an IDE (Oracle JDeveloper 9i) with require me to build this into one project. When I try to build the project, it shows error in One.jsp as "variable bl not found in class_One".
When I put the <jsp:useBean      id="bl"     class="TestsPrivateBean" scope="session"/> code into Two.jsp, it shows "duplicate found error".
How should I do to fix this?
Thanks
Kenny

It sounds like it's compiling One.jsp independant of Two.jsp, which will cause the first error. Try renaming One.jsp to One.inc or something. That way it doesn't try compiling One.jsp at all (it won't be there).

JSP and package deployment problem in Tomcat 5

Hi,
I tried very simple exercise that includes JSP and javabean (from package), but I have 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
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Compiling 1 source file
[javac] C:\jwsdp\work\Catalina\localhost\exercises\org\apache\jsp\ex01\ex01_jsp.java:10:
package pack01 does not exist
[javac] import pack01.ex01;
[javac] ^
Bellow are all my sources
1. directory structure
========================
C:\jwsdp\webapps\exercises
index.html
C:\jwsdp\webapps\exercises\ex01
build.bat
ex01.jsp
C:\jwsdp\webapps\exercises\ex01\WEB-INF
web.xml
C:\jwsdp\webapps\exercises\ex01\WEB-INF\classes
C:\jwsdp\webapps\exercises\ex01\WEB-INF\classes\pack01
ex01.class
ex01.java
C:\jwsdp\webapps\exercises\ex01\WEB-INF\lib
pack01.jar
2. sources
==========
<< ex01.jsp >>
<HTML> <HEAD> <TITLE>Ex01</TITLE> </HEAD>
<BODY>
<FORM METHOD="GET" ACTION="ex01.jsp">
<%@ page import = "pack01.ex01" %>
<H2>Ex01</H2>
<jsp:useBean id = "x" class = "ex01" scope="application"/>
</FORM>
</BODY> </HTML>
<< ex01.java >>
package pack01;
import java.io.*;
public class ex01 implements Serializable {
private String value;
public ex01() {
value = "EX01";
public void setValue(String s) {
value = s;
public String getValue() {
return value;
<< build.bat >>
cd WEB-INF\classes\
cd
del ex01.jar
javac -deprecation -verbose pack01\ex01.java
jar cvf ..\lib\pack01.jar pack01\ex01.class
<< C:\jwsdp\webapps\exercises.xml >>
<Context className="org.apache.catalina.core.StandardContext"
     cachingAllowed="true"
     charsetMapperClass="org.apache.catalina.util.CharsetMapper"
     configFile="webapps\exercises.xml"
     cookies="true"
     crossContext="false"
     debug="0"
     displayName="Exercises"
     docBase="C:\jwsdp\webapps\exercises"
     domain="Catalina"
     engineName="Catalina"
     j2EEApplication="none"
     j2EEServer="none"
     lazy="true"
     mapperClass="org.apache.catalina.core.StandardContextMapper"
     path="/exercises"
     privileged="false"
     reloadable="true"
     startupTime="30"
     swallowOutput="true"
     useNaming="true"
     wrapperClass="org.apache.catalina.core.StandardWrapper" >
</Context>
What is wrong ?
I have Windows NT and Tomcat 5 (from jwsdp 1.2).
Thank you,
Alex.

I just tried to reproduce the problem with old version of Tomcat (4.0.2) and ... it works. It is definitely specific for Tomcat 5 (or may be one of the late Tomcat 4 as well). There is another related difference:
With Tomcat 4 I could create javabean in class subdirectory (default package) and use
<%@ page import="ex01" %>
Now with Tomcat 5 I have syntax error in this line.
This syntax error disappeared when I moved javabean into package pack01.

How to include a jsp file in servlets and javabeans

Hi to all..I have a jsp file which contains some database connections and I would like to include in that file in my servlets and javabeans.What coding can i use?Can show me sample coding.

Hi to all..I have created a javabean storing the
database connections. How do i include and call that
bean in my servlet and javabeans?Can pls show me some
sample coding?I am new to servlets and beans.The same way you do with normal Java Classes. If you are new to Java, I suggest you go to http://java.sun.com/docs/books/tutorial/index.html and look through the first couple of tutorials.
As a note, it is best to put all your objects into packages, especially if you use JDK 1.4 or higher.

What is different between strut and jsp+servlet+javabean?

welcome

Struts is a package that sits on top of the usual webapp stuff and organises and makes regular a lot of the stuff you wind up doing in servlets without it.
It handles stuff like the objects you usually wind up using to pass data between JSPs and forms and servlets.
It implements transaction stearing rules.

Getting error while passing implicit request object from JSP to JavaBean

Hi,
I am getting error while passing implicit object ie( request object)
from within JSP to JavaBean.
Following is source for JSP, JavaBean and Error message I am getting.
vaLookup.jsp Source
<jsp:useBean id="db" class="advisorinsight.javabeans.DisplayPages"
scope="request">
<jsp:setProperty name="db" property="request" value="<%= request %>"
/>
</jsp:useBean>
<jsp:getProperty name="db" property="totalrecords" />
JAVABEAN DisplayPages.java source
package javabeans;
import java.io.Serializable;
import javax.servlet.http.HttpServletRequest;
public final class DisplayPages implements Serializable {
private String totalrecords;
private HttpServletRequest request;
public void setRequest(HttpServletRequest req){
this.request = req;
public java.lang.String getTotalrecords()
this.totalrecords =
this.request.getParameter("totalrecords");
return this.totalrecords;
public DisplayPages(){
totalrecords = "";
request = null;
error after executing vaLookup.jsp
[30/Nov/2001 11:56:04:5] info: EXTMGR-006: GXExtensionManager: Extension
service JavaExtData successfully loaded
[30/Nov/2001 11:56:04:5] info: EXTMGR-006: GXExtensionManager: Extension
service LockManager successfully loaded
[30/Nov/2001 11:56:04:5] info: EXTMGR-006: GXExtensionManager: Extension
service RLOPManager successfully loaded
[30/Nov/2001 11:56:04:5] info: REQ-012: thread add
[30/Nov/2001 11:56:04:5] info: REQ-012: thread add
[30/Nov/2001 11:56:04:5] info: REQ-012: thread add
[30/Nov/2001 11:56:04:5] info: REQ-012: thread add
[30/Nov/2001 11:56:04:5] info: REQ-012: thread add
[30/Nov/2001 11:56:04:5] info: REQ-012: thread add
[30/Nov/2001 11:56:04:5] info: REQ-012: thread add
[30/Nov/2001 11:56:04:5] info: REQ-012: thread add
[30/Nov/2001 11:56:04:7] info: ENGINE-ready: ready: 10819
[30/Nov/2001 11:56:46:0] info: --------------------------------------
[30/Nov/2001 11:56:46:0] info: JSPRunnerSticky: init
[30/Nov/2001 11:56:46:0] info: --------------------------------------
[30/Nov/2001 11:56:51:7] error: Exception: SERVLET-compile_failed:
Failed in compiling template: /va/valookup.jsp, javac error:
c:\iplanet\ias6\ias\APPS\variabl
S\va\valookup.java:76: Undefined variable: JSP_8
db.setRequest(_JSP__8);
^
1 error
Exception Stack Trace:
java.lang.Exception: javac error:
c:\iplanet\ias6\ias\APPS\variableannuity\va\WEB-INF\compiled_jsp\jsp\APPS\va\valookup.java:76:
Undefined variable: JSP_8
db.setRequest(_JSP__8);
^
1 error
at
com.netscape.server.servlet.jsp.JSPCompiler.compileJSP(Unknown Source)
at
com.netscape.server.servlet.jsp.JSPCompiler.compileOrLoadJSP(Unknown
Source)
at
com.netscape.server.servlet.jsp.JSPCompiler.compileInstance(Unknown
Source)
at
com.netscape.server.servlet.jsp.JSPCompiler.compileInstance(Unknown
Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.callJspCompiler(Unknown
Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.callUri(Unknown
Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.callUriRestrictOutput(Unknown
Source)
at
com.netscape.server.servlet.platformhttp.PlatformRequestDispatcher.forward(Unknown
Source)
at com.netscape.server.servlet.jsp.JSPRunner.service(Unknown
Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
Source)
at
com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unknown
Source)
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
at com.kivasoft.thread.ThreadBasic.run(Native Method)
at java.lang.Thread.run(Thread.java:479)

The only thing that I see that looks funny to me is when you pass the request object into the method using <%=request%>, Im not sure whats going to happen here because that is suppose to print the results. Have you tried simply using <%request%>?

Need help in JSP and Servlets

Hi friends,
[please forgive me if i am posting this in the wrong forum, all seems same to a fresher]
Now, to my problem..i need a suggestion, a way or a method to implement the following!
I am supposed to create a servlet that reads data from oracle database. Once i retrive the data (for example: 6 rows of a table having 4 attributes), i am supposed to pass this data to a JSP page where the data has to be formatted and displayed properly. If i call the same servlet from a different JSP, i should be able to access the data in that JSP and format it in a different way. How do i pass the data to JSP? what method i can use to achieve this task?
Note: I already know about PrintWriter pw = response.getWriter(); and then printing the formated HTML page..but i want to keep the formatting to JSP part and send only the data part that i can access in JSP
Thanks in adavance

arun_ramachandran wrote:
[please forgive me if i am posting this in the wrong forum, all seems same to a fresher]Then you should learn to be more observant - after all, we have JSP and Servlet fora, further down the list. :)
I am supposed to create a servlet that reads data from oracle database. Once i retrive the data (for example: 6 rows of a table having 4 attributes), i am supposed to pass this data to a JSP page where the data has to be formatted and displayed properly. If i call the same servlet from a different JSP, i should be able to access the data in that JSP and format it in a different way. How do i pass the data to JSP? what method i can use to achieve this task? You can store the data in your session object. You can even use JavaBeans and the jsp:usebean tag.
[http://java.sun.com/products/jsp/tags/11/syntaxref11.fm14.html]
Note: I already know about PrintWriter pw = response.getWriter(); and then printing the formated HTML page..but i want to keep the formatting to JSP part and send only the data part that i can access in JSPA wise approach - I wish more prople woiuld be as thoughtful.

The deployment problem in JSP using JavaBean

Hi there,
I followed the descriptions in Writing Enterprise Applications with
Java 2 SDK, Enterprise Edition tutorial to build a set of programs to run JSP with JavaBean, and I also followed the steps in creating new WAR file, but some how it wouldn't work after I deployed them. I run the JSP in IE and got a message like this:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 20 in the jsp file: /1bonus.jsp
Generated servlet error:
c:\j2sdkee1.3.1\repository\orbit\web\JSPRoot\$1bonus$jsp.java:63: Class org.apache.jsp.JBonusBean not found.
JBonusBean jbonus = null;
^
I used the deploytool to create the WAR file, and after I added the 1bonus.jsp, I also added JBonusBean into the WAR file. I found 1bonus.jsp was added into the WAR file, but there's no JBonusBean appeared under the WAR file.
Could you please tell me is there anything wrong?
Thanks for your time.
Regards,
Eric

I think you have not imported 'BonusBean' in your jsp. Code this line in your jsp at the top.
<%@page import="BonusBean" %>
Sudha

Usage difference in JSP and Servlets

Can someone explain when a servlet is used against JSP and vice versa?

I think Servlet is more convience to communicate with javabean, when handling a large number of variables.
For example, a html form post a 2D array of variable.
Then you may find diffcult to past these variable into a bean using JSP.
Also when you diffcult to separate the html and java code in some JSP page, then it is better to use servlet.
On the other hand, the advantage of JSP is that it doesn't require user to complie the source code by hand, more suitable for some page that is always changing.

JSP and JavaBeans...

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