Help!!! Display "null" in JSP page

Hi,
I use the code like <%=adress%> in jsp.
When the adress is null, the jsp page in S1AS will show a string "null". But the same code is OK in weblogic ,the jsp will show empty for this part of code
What is difference between them ?If I do not want to change the code (many places) ,is there any way to confirgue sun one or easy ways to solve this problem?
Could evry expert to help me to firgure out how to solve this problem?
Thanks in advance,
FS

You also might want to check JDK versions and J2EE versions being used. These might yield different results.

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Junk characters like" � � "displayed in the jsp page please help.

Hi,
I am getting junk characters like � � displayed in the jsp page.
In the JSP page i used javascript "& nbsp" for appending spaces to a string "CCR" to get "CCR " .
Now the Resultant string "CCR " has three spaces appended to its right.
This String is set in session in that JSP page.
In the next JSP page i am getting that string from session.
After getting the string the "substring" function is performed to get only the first 5 charcters of the string. Now the result is displayed as " CCR� � " with has last 2 characters as junk values � � insteed of displaying as "CCR ". Please help me in solving this issue.
Please note that initially the sting "CCR" is got from the Oracle database in Solaris Machine.
Regards,
Vijay

have you tried:
strenuously inspecting the string that is coming from the db? do an actual loop over the string, character by character, dumping to System.out to make sure the characters are EXACT coming out of the db.
note you have to append " " not just "& nbsp"
post the code that is doing the output. the relevant bean code, the jsp, everything relevant - WITH COMMENTS discussing where things are happening.
Also, is it "weird characters" in the browser only? have you done a view source on the actual html source that the browser is rendering (right click in IE and click view source). browsers can act odd if you don't feed then exactly what they want, and it looks like you're feeding it escaped characters that it is rendering as something else.

Need help in writing a .jsp page

Hi Guys,
I am new to JSP. My requirement is " I have a link on my webpage. When the user clicks that link, a HTML page is displayed which has parameters to be entered (for ex: from_date , to_date). When the user clicks the submit button, a jsp page should be displayed in which a query is run to display the output. For example, the user enters the from_date and to_date parameter values to know the employees employed within those dates in their company. The query is "select empname,empno,sal,dept,comm from emp where employed_date between from_date and to_date" . The following should run and display in the jsp page.
How can i write a .jsp to extract the parameters that are entered in the HTML form in to a .jsp and run the query with those parameters to display the output. Help needed in making me write this .jsp for this query.
Help Aprreciated.
Thanks

Hm, your requirements sound like homework assignment from classroom. If so, is itn't better that you find the answer youself? There are plenty of very relevant references for how to use jsp to handle html forms or talk to a rdbms through a jdbc connection. For example, for jsp and html forms, you can google "jsp html forms"; for jsp and sql query, search for "jsp jdbc".
Tell me if this is not helpful.

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Second is that if I save image in a folder parallel to web-inf in my project then it will not be displaying the image.
Can I use any jsp functionality to display image with other outputs from database. I have used "*include*". but it shows only that image and other outputs.

Best way is to use a servlet for this.
<img src="path/to/imageservlet?id=someidentifier">

<img src="path/to/imageservlet/someidentifier">In the servlet's doGet() just write code which gets an InputStream of the image (either directly generated, or just read from the local disk file system, if necessary with help of ServletContext#getRealPath(), or even from the DB by ResultSet#getBinaryStream()) and writes it to the OutputStream of the response. That's basically all. Don't forget to buffer the streams properly to speedup performance and to save memory.
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Problem in Retrieve Image from DB and display in the JSP page

Hi All,
I did one JSP Program for retriveing image from DB and display in the JSP Page. But when i run this i m getting "String Value" output. Here i have given my Program and the output. Please any one help to this issue.
Database Used : MS Access
DSN Name : image
Table Name: image
Image Format: bmp
Output : 1973956
Sample Program:_
<%@ page contentType="text/html;charset=windows-1252"%>
<%@ page import="java.io.*" %>
<%
     try{
          Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
          Connection conn = DriverManager.getConnection("jdbc:odbc:image");
          Statement st = conn.createStatement();
          ResultSet rs = st.executeQuery("SELECT images FROM image");
          String imgLen="";
          if(rs.next()){
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               out.println(imgLen.length());
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               int len = imgLen.length();
               byte [] rb = new byte[len];
               InputStream readImg = rs.getBinaryStream(1);
               int index=readImg.read(rb, 0, len);
               System.out.println("index"+index);
               st.close();
               response.reset();
               response.setContentType("image/jpg");
               response.getOutputStream().write(rb,0,len);
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     }catch(Exception ee){
          out.println(ee);
%>
Thanks,
Senthilkumar S

vishruta wrote:
<%
%>Using scriptlets is asking for trouble. Java code belongs in Java classes. Use a Servlet.
               out.println(imgLen.length());Your JSP was supposed to write an image to the output and you wrote some irrelevant strings to the output before? This will corrupt the image. It's like opening the image in a text editor and adding some characters before to it.
               byte [] rb = new byte[len];Memory hogging. Don't do that.
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Struts can't display the input jsp page

Hello,
I'm using Struts 1.3.8 to construct a simple user registration system, in which the user could input his info (such as uuname and gpin, both are strings) in a jsp page, and after the submit, the system should go to a success page. However, somehow, when I access the url, it goes directly to the success page, but not stay at the input page.
Here is my {color:#ff0000}struts-xml.config{color}
bq. <?xml version="1.0" encoding="UTF-8"?> \\ <!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" "http://struts.apache.org/dtds/struts-config_1_3.dtd"> \\ <struts-config> \\ <form-beans> \\ <form-bean name="{color:#ff0000}anotherUserForm{color}" type="com.visualbuilder.struts.beans.AnotherUser" /> \\ </form-beans> \\  \\ <global-exceptions></global-exceptions> \\  \\ <global-forwards> \\ <forward name="success" path="success.jsp"/> </global-forwards> \\  \\ <action-mappings> \\ <action path="/{color:#ff0000}addanotheruser{color}" type="com.visualbuilder.struts.action.AddAnotherUserAction" name="{color:#ff0000}anotherUserForm{color}" attribute="user" input="{color:#ff0000}/addanotheruser.jsp{color}" cancellable="true"> \\ </action> \\ </action-mappings> \\  \\ <message-resources \\ parameter="registration.resources.ApplicationResources" /> \\ </struts-config>
My action class is:
package com.visualbuilder.struts.action;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.visualbuilder.struts.beans.AnotherUser;
public class AddAnotherUserAction extends Action {
@Override
public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception {
if (isCancelled(request)) {
return mapping.findForward("welcome");
{color:#ff0000}AnotherUser anotherUser = (AnotherUser) form;{color}
System.out.println("UUName: " + anotherUser.getUuname() + "\tGPIN: " + anotherUser.getGpin());
{color:#ff0000}return mapping.findForward("success");{color}
My ActionForm class is:
package com.visualbuilder.struts.beans;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
public class AnotherUser extends ActionForm {
private static final long serialVersionUID = 1058901817587421984L;
private String uuname;
private String gpin;
public String getGpin() {
return gpin;
public void setGpin(String gpin) {
this.gpin = gpin;
public String getUuname() {
return uuname;
public void setUuname(String uuname) {
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uuname = null;
gpin = null;
@Override
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<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Another User Registration</title>
</head>
<body>
<h1>Another User Registration</h1>
<html:errors />
<table>
{color:#ff0000}<html:form action="addanotheruser">{color}
<tr>
<td>UUName</td>
<td>{color:#ff0000}<html:text property="uuname"></html:text>{color}*</td>
</tr>
<tr>
<td>GPIN</td>
<td>{color:#ff0000}<html:text property="gpin"></html:text>{color}*</td>
</tr>
<tr>
<td><html:submit/></td>
<td><html:cancel/></td>
</tr>
</html:form>
</table>
</body>
</html>
Everytime I access http://localhost:9080/addanotheruser.do, it jumps to the success.jsp, but not stay at addanotheruser.jsp to wait for the user input, and in the server's console, I could see the output "UUName: null GPIN: null"
I've been stuck at this simple program for three days, could anybody help to find the errors? Thanks a lot.

sorry, the post looks ugly. Does anybody know how to make the indent not disappear?

Problem in displaying image on jsp page

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Hi,
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what I'm missing..............
Is there any other way to display an image on JSP page using backing bean
method.
Thanks
Ans

HI,
See: http://kuba.zilp.pl/?id=241
Kuba

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Help!!! Display "null" in JSP page

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