Out.println in jsp?

Can out.println be used in JSP? I got the following error:
I have googled that out.println cannot be used in a method declaration, which is what i've done. So what do i do from there?
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:39: cannot find symbol
symbol : variable out
location: class org.apache.jsp.menu_005ftest_jsp
                        out.println("<li><a href=" + strMenuLink + ">" + strMenuName + "</a>");
                        ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:40: cannot find symbol
symbol : variable out
location: class org.apache.jsp.menu_005ftest_jsp
                        out.println("<ul>");
                        ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:42: cannot find symbol
symbol : variable out
location: class org.apache.jsp.menu_005ftest_jsp
                        out.println("</ul>");
                        ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:44: cannot find symbol
symbol : variable out
location: class org.apache.jsp.menu_005ftest_jsp
                        out.println("<li><a href=" + strMenuLink + ">" + strMenuName + "</a></li>");
                        ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:113: out is already defined in _jspService(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
                    PrintWriter out = response.getWriter();
                                ^
5 errors
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\nbproject\build-impl.xml:364: The following error occurred while executing this line:
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\nbproject\build-impl.xml:149: Compile failed; see the compiler error output for details.
BUILD FAILED (total time: 1 second)At first i didnt declare a PrintWriter but then after i first got the error, i just threw it in. But it seems that even that part has an error too. Thanks.

Thanks! I actually thought that it was not a good idea to use it because the method i created can calls itself and it is very confusing to me. So i switched back to using normal codes html. (is it called template code?) Anyway this is a new problem that i face, should i start a new thread since its a different issue?
The new error, could it be due to the two different try and catch? (see code below)
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:40: illegal start of expression
private static java.util.List _jspx_dependants;
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:27: 'try' without 'catch' or 'finally'
            try{
            ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:123: 'catch' without 'try'
                        } catch (SQLException ex) {
                          ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:60: 'try' without 'catch' or 'finally'
    try {
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:152: 'else' without 'if'
                    } else {
                      ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:156: class or interface expected
        }catch (SQLException e){
        ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:158: class or interface expected
        }finally{
        ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:160: class or interface expected
        ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:162: class or interface expected
        ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:165: class or interface expected
      out.write("    </body>\n");
      ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:166: class or interface expected
      out.write("</html>");
      ^
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:167: class or interface expected
    } catch (Throwable t) {
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:170: class or interface expected
        if (out != null && out.getBufferSize() != 0)
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:172: class or interface expected
        if (_jspx_page_context != null) _jspx_page_context.handlePageException(t);
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:173: class or interface expected
C:\Documents and Settings\USER\Desktop\FOS_Menu\FOS_Menu\build\generated\src\org\apache\jsp\menu_005ftest_jsp.java:176: class or interface expected
16 errorsAnd the code for your reference:
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@page import="FOS.dbconnection.*, FOS.User.*, FOS.Menu.*, javax.servlet.http.*, javax.servlet.jsp.*,javax.servlet.*,
java.sql.*,java.awt.*,java.net.*,java.io.*;"%>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-AU">
    <head>
        <title>FOS Menu</title>
        <script type="text/javascript" src="mb.js"></script>
        <link rel="stylesheet" href="mb.css" />
    </head>
    <body onload="mbSet('mb2', 'mbh');">
        <div id="c">
            <div id="eg">
                <ul id="mb2">
                    <%
                    Connection conn = null;
                    Statement stmt;
                    ResultSet rs;
                    String sqlStr;
                    conn = DBConnection.getConnection();
                    try {
                        sqlStr = "SELECT menu_id, menu_name FROM application_mstr WHERE menu_type ='P' AND parent_id='N' ORDER BY module_seq";
                        stmt = conn.createStatement();
                        rs = stmt.executeQuery(sqlStr);
                        while (rs.next()) {
                            String strParentMenuId = rs.getString("menu_id");
                            String strParentMenuName = rs.getString("menu_name");
                    %>
                    <li><a href=""><%= strParentMenuName %></a>
                        <ul>
                            <%
                            getChildren(strParentMenuId);
                            %>
                        </ul>
                    </li>
                    %>
                </ul>
            </div>
        </div>
        <%
                        } catch (SQLException ex) {
                            out.println("<P>" + "Error:");
                            out.println("<PRE>" + ex + "</PRE> \n <P>");
                        } catch (Exception e) {
                            out.println("<P>" + "Error:");
                            out.println("<PRE>" + e + "</PRE> \n <P>");
                        } finally {
                            DBConnection.closeConnection(conn);
        %>
        <%!
        String getChildren(String strMenu_id){
            Connection conn = null;
            PreparedStatement pstmt;
            ResultSet prs;
            String sqlStr;
            try{
                sqlStr = "SELECT menu_id, menu_name, menu_link FROM application_mstr WHERE parent_id=? ORDER BY menu_seq";
                pstmt = DBConnection.getPreparedStatement(conn, sqlStr);
                pstmt.setString(1, strMenu_id);
                prs = pstmt.executeQuery();
                while (prs.next()){
                    String strMenuId = prs.getString("menu_id");
                    String strMenuName = prs.getString("menu_name");
                    String strMenuType = prs.getString("menu_type");
                    String strMenuLink = prs.getString("menu_link");
                    if (strMenuType == "P"){
        %>
        <li><a href='<%=strMenuLink %>'> <%=strMenuName %></a>
        <ul>
            <%
            getChildren(strMenuId);
            %>
        </ul>
        <%
                    } else {
                        out.println("<li><a href=" + strMenuLink + ">" + strMenuName + "</a></li>");
        }catch (SQLException e){
            System.err.println("Error executing stmt :" + e);
        }finally{
            DBConnection.closeConnection(conn);
        return "";
        %>
    </body>
</html>

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Edited by: Ecommerce Developer on Nov 9, 2009 8:35 AM

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Thank you!!!

Hi!!!
Thank you to answer me......my question�is because�my problem is a little more complicated��let me tell you�.
My problem is that I wish to do some queries to a table of a Municipalities DB, I have read about that....and according with the exemples....my JSP...should be running and executing very well....but I haven�t had success with that...:(
My JSP file is:
<!doctype html public "-//w3c//dtd html 3.2//en">
<html>

<head>
<title>Query of Municipalities</title>
</head>
<body bgcolor=#FFFFFF>
<font face="Helvetica">
<h1>
<font color=#DB1260>
Municipalities List
</font>
</h1>
<%@ page import="
weblogic.db.jdbc.*,
weblogic.html.*,
java.sql.*
" %>
<p>
<%
Connection conn = null;
try {
Class.forName("weblogic.jdbc.pool.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:weblogic:pool:DESAPool");
catch (Exception e) {
e.printStackTrace();
Statement stmt = conn.createStatement();
stmt.execute("select * from cat_municipio");
ResultSet rs = stmt.getResultSet();
while (rs.next()) {
System.out.println(rs.getInt("cve_municipio") + " - " + rs.getInt("cve_sepomex") + " - " + rs.getString("desc_municipio"));
stmt.close();
conn.close();
%>
<p>Please call Mary with any updates ASAP!
<p>
<font size=-1>Copyright (c) 1999-2000 by BEA Systems, Inc. All Rights Reserved.
</font>
</font>
</body>
</html>
My result obtained is the following:
Municipalities List
Please call Mary with any updates ASAP!
Copyright (c) 1999-2000 by BEA Systems, Inc. All Rights Reserved.
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<!doctype html public "-//w3c//dtd html 3.2//en">
<html>

<head>
<title>Query of Municipalities</title>
</head>
<body bgcolor=#FFFFFF>
<font face="Helvetica">
<h1>
<font color=#DB1260>
Municipalities List
</font>
</h1>
<%@ page import="
weblogic.db.jdbc.*,
weblogic.html.*,
java.sql.*
" %>
<p>
<%
Connection conn = null;
try {
Class.forName("weblogic.jdbc.pool.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:weblogic:pool:DESAPool");
// Fetch all records from the database in a TableDataSet
DataSet dSet = new TableDataSet(conn, "cat_municipio").fetchRecords();
TableElement tE = new TableElement(dSet);
tE.setBorder(1);
out.print(tE);
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out.print("Sorry, the database is not available.");
out.print("Exception: " + sqle);
} catch (Exception e) {
out.print("Exception occured: " + e);
} finally {
if(conn != null)
try {
conn.close();
} catch(SQLException sqle) {}
%>
<p>Please call Mary with any updates ASAP!
<p>
<font size=-1>Copyright (c) 1999-2000 by BEA Systems, Inc. All Rights Reserved.
</font>
</font>
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CVE_MUNICIPIO CVE_SEPOMEX DESC_MUNICIPIO
1 1 ACAJETE
2 2 ACATENO
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4 4 ACATZINGO
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Mary
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<!doctype html public "-//w3c//dtd html 3.2//en">
<html>

<head>
<title>Query of Municipalities</title>
</head>
<body bgcolor=#FFFFFF>
<font face="Helvetica">
<h1>
<font color=#DB1260>
Municipalities List
</font>
</h1>
<%@ page import="
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weblogic.html.*,
java.sql.*
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<p>
<%
Connection conn = null;
try {
Class.forName("weblogic.jdbc.pool.Driver").newInstance();
conn = DriverManager.getConnection("jdbc:weblogic:pool:DESAPool");
catch (Exception e) {
e.printStackTrace();
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("select CVE_MUNICIPIO, CVE_SEPOMEX, DESC_MUNICIPIO from cat_municipio");
while (rs.next()) {
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rs.close();
stmt.close();
conn.close();
%>
<p>Please call Mary with any updates ASAP!
<p>
<font size=-1>Copyright (c) 1999-2000 by BEA Systems, Inc. All Rights Reserved.
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How to dynamically generate HTML in Servlet without all the out.println?

Since I am not sure whether this is a Java Servlet or JSP problem, so I will describe my situation. And hopefully someone can propose a good solution. I came from a PHP, so Java Servlet and JSP are still a little bit foreign for me.
My problem
My front end is a JSP page that essentially contains a form (lets call it form1). The reason it is a JSP not a HTML is because I will need to load form data from the backend and display them in the form. Once the user submits the form, it will go to a backend Java Servlet (lets call it servlet 1), which loads data from files according to user input. Then, I will need to dynamically create a new form (lets call it form2) based on the data loaded from files. Once the user inputs and submits form2, another Java Servlet (servlet 2) will do more processing. That is the end of line. Both form1 and form2 require Javascript.
My question is that since servlet 1 will need to dynamically create form2. I naturally will want a presentation control. Instead of doing out.println(html code), I want to use JSP and write direct HTML code. On the other hand, can JSP be used as a form action? So basically, in form 1, can I do <form action=/xxx.jsp> I think I saw something like this, but I lack the comprehensive JSP knowledge to know for sure. More importantly, if hypothetically JSP can be used, how do I handle functions such as doGet(HttpServletRequest request, HttpServletResponse response), which is used in servlet1.
Thank you,
M

no, servlets should not be used to generate a view, that is what a JSP is for. So let your backend servlet fetch the data, put it for example as attributes of the request scope (request.setAttribute()) and then forward control to a JSP that will generate the view, based on the information you stored in the request scope. That is the proper way of using servlets & JSPs; use servlets to invoke business logic classes, use JSPs combined with JSTL to generate the view. If you do it properly, you don't need ANY java code in your JSP.

Plz help me out new to jsp

package abc;
class UserDetails
// i have used this class basically for declaration of variables.
public class BulkSmsFunctions
BulkSmsFunctions()
{// constructor}
// in this class i have 5-6 functions
public static void amin(String args[])
// i have left my psvm as empty.
}BulkSmsFunctions uses objects of UserDetails to assign various variables.
now i have a jsp page which has to create an object of BulkSmsFunctions and call the various functions.
i have the following code for the jsp page:
<%@ page import = "java.util.*"%>
<%@ page import = "java.lang.*"%>
<%@ page import = "java.io.*"%>
<%@ page import = "abc.*"%>//importing the package
<html>
<body>
<%
String PROVISIONING_LOG_PATH="C:\\bulksmsfolder";
String USERS_ACTIVE_DETAILS_FILE="CountDetails";
String USERS_PACKAGE_SUBSCRIPTION_LOGS_FILE="ServiceLog";
String SERVICE_SUBSCRIPTION_PACKAGES_MASTER_FILE="PacksMasterFile";
BulkSmsFunctions objBulkSms= new BulkSmsFunctions();
try
boolean SmsCountFlag = objBulkSms.processSmsCountDetails(PROVISIONING_MODULE_LOG_PATH,USERS_ACTIVE_SMSCOUNT_DETAILS_FILE);
if(SmsCountFlag == false)
        out.println(" No file contents");
     catch (Exception e)
     out.println(" Exception in main     :" + e.toString());
%>
</body>
</html>i am getting the following error.
An error occurred at line: 7 in the jsp file: /jsp/natasha/hello.jsp
Generated servlet error:
[javac] Compiling 1 source file
C:\jakarta-tomcat-4.1.31\work\Standalone\localhost\examples\jsp\natasha\hello_jsp.java:56: tcs.BulkSmsFunctions is not public in tcs; cannot be accessed from outside package
     BulkSmsFunctions objBulkSms= new BulkSmsFunctions();
^
An error occurred at line: 7 in the jsp file: /jsp/natasha/hello.jsp
Generated servlet error:
C:\jakarta-tomcat-4.1.31\work\Standalone\localhost\examples\jsp\natasha\hello_jsp.java:56: tcs.BulkSmsFunctions is not public in tcs; cannot be accessed from outside package
     BulkSmsFunctions objBulkSms= new BulkSmsFunctions();
^
An error occurred at line: 7 in the jsp file: /jsp/natasha/hello.jsp
Generated servlet error:
C:\jakarta-tomcat-4.1.31\work\Standalone\localhost\examples\jsp\natasha\hello_jsp.java:56: BulkSmsFunctions() is not public in tcs.BulkSmsFunctions; cannot be accessed from outside package
     BulkSmsFunctions objBulkSms= new BulkSmsFunctions();
^
An error occurred at line: 7 in the jsp file: /jsp/natasha/hello.jsp
Generated servlet error:
C:\jakarta-tomcat-4.1.31\work\Standalone\localhost\examples\jsp\natasha\hello_jsp.java:60: processSmsCountDetails(java.lang.String,java.lang.String) is not public in tcs.BulkSmsFunctions; cannot be accessed from outside package
          boolean SmsCountFlag = objBulkSms.processSmsCountDetails(PROVISIONING_MODULE_LOG_PATH,USERS_ACTIVE_SMSCOUNT_DETAILS_FILE);
^
4 errors

try
modify constructor of BulkSmsFunctions to public as in
public BulkSmsFunctions() { etc etc

System.out.println - Hello World Example

Hi All
I am using Apache Tomcat and trying t produce a simple output to the browser. Cannot get System.out.println to work. See code and out below:
begin code
<HTML>
<HEAD><TITLE>hello jsp</TITLE></HEAD>
<BODY>
<%@ page language='java' contentType='text/html' %>
<%
String message = "Hello World";
message = message + "\nAFTER";
System.out.println("BEFORE");
%>
<%= (message) %>
</BODY>
</HTML>
END code
--begin browser output
Hello World AFTER
end browser ouput
Would be grateful if someone could explain why the System.out.print statement cannot be seen in the browser output.
many thanks
Naresh

System.out prints to System.out. What that is depends:
In applets, (which the OP was not talking about) it is the Java Console.
In JSP, it's the same as any application by default.
You can change in Java what System.out prints to, but you don't often do this. But in JSP it doesn't print to the browser. JSP is not CGI, which does you the standard out as the destination for written data.

Problem with Out Reference in jsp

Hi All
Please Help Me
My problem is
<%
ResultVo rvo=null;
for(int i=0;i<alist.size();i++){
rvo=(ResultVo)alist.get(i);
%>
<%=rvo.getData() %><%=rvo.getDel_tim() %>
<%
System.out.println("data"+rvo.getData()+""+i);
System.out.println("dest"+rvo.getDest());
} %>
problem:
1)here i am getting the first expression tag value
in server it prints perfect (i mean all the values)
but coming to jsp only the object first value printed on the jsp
ex:
alist.size() --10 objects
and each object contains some values
i repeated and try to print on the web using expression tag
it prints only first object first value
but i am in confusion what is the problem might be
please help me
thanking you

u have to increment ur i
add this to ur for:
i++;

Problem Displaying out Data in JSP

can anyone have a look at my code? i got some problems to display it in jsp when i run it with eclipse. can anyone help me on this?? did my java bean declared wrongly? thanks...
this is my java file
package com;
import java.io.File;
import com.db4o.Db4o;
import com.db4o.ObjectContainer;
import com.db4o.ObjectSet;
import org.jfree.chart.*;
import org.jfree.data.general.*;
public class StoreData{
     private static final long serialVersionUID = 1L;
     private final static String filename = "C:\\CountryPieChart.yap";
     public static void main(String[] args){
          //Delete the existing file
          new File(filename).delete();
          ObjectContainer db=Db4o.openFile(filename);
          try {
               StoreAllData();
               retrieveAllData();
          } finally{
               db.close();          //Close the database
     public static void StoreAllData() {
          //Delete the existing file
          new File(filename).delete();
          ObjectContainer db = Db4o.openFile(filename);
          //Add data to the database
          CountryPeople countryName_1 = new CountryPeople("Malaysia", 100);
          CountryPeople countryName_2 = new CountryPeople("New Z", 200);
          CountryPeople countryName_3 = new CountryPeople("UK", 300);
          CountryPeople countryName_4 = new CountryPeople("Thailand", 400);
          CountryPeople countryName_5 = new CountryPeople("Singapore", 50);
          //set the value to database
          db.set(countryName_1);
          db.set(countryName_2);
          db.set(countryName_3);
          db.set(countryName_4);
          db.set(countryName_5);
     public static void retrieveAllData() {
          //Open db
          ObjectContainer db = Db4o.openFile(filename);
          //Retrieve via empty object
          CountryPeople cName = new CountryPeople(null, 0);
          ObjectSet result = db.get(cName);
          DefaultPieDataset dataset = new DefaultPieDataset();
          //retrieve the data from database
          while(result.hasNext()) {
               CountryPeople obj = (CountryPeople) result.next();
               dataset.setValue(obj.getName(), obj.getValue());
               //System.out.println(result.next());
          //Create pie chart
          JFreeChart chart = ChartFactory.createPieChart(
                    "Sample Chart",
                    dataset,
                    true,
                    true,
                    false);
          try {
               //save the pie chart as JPEG file
               ChartUtilities.saveChartAsJPEG(new File("C:\\CountryPieChart.jpg"), chart, 500, 300);
          } catch(Exception e) {
               System.out.println("Problem for creating chart");
and this is my jsp file
<jsp:useBean id="myStoreData" class="com.StoreData" scope="page"></jsp:useBean>
<html>
<head><title>Testing Displaying</title>
</head>
<body>
<b>Testing Display Page</b>
<img src="<jsp:getProperty name="myStoreData" property="getFileName" /> /">
</body>
</html>

<img src="<jsp:getProperty name="myStoreData" property="getFileName" /> /">
property="getFileName": There isnt such a property available in your bean.

Session problem in one out of two jsp

Dear java guru's
I have got jsp page A.jsp.User select few option and this jsp calls
B.servlet this takes user input and pass to
C.bean which returns vector to B.servlet
This servlet put vector in session and dispatch to new jsp
D.jsp which calls
E.jsp in it for Image generation.
This E.jsp retrieve vector from session and generate a image and reurn to D.jsp
Now my problem is that session in B.servlet and D.jsp are same but a new session in created in E.jsp so image is null as it could get data from vector which is null.
I put System.out.println(session.getId()) in each servlet and jsp so to get thier ID's.
This is working fine in my system with Tomcat 3.2 but on web the new session is created for E.jsp
I am calling E.jsp like this
<img src=<%=response.encodeURL("/iscap/report/jspChart.jsp")%> alt="generation image" width="400" height="350" border="1">
I am making page session=true in each jsp and also puttting request.getSession(false);
but still E.jsp is getting new session.I tried eliminating each one and made all combination that could be possible but not effect.
How Can I solve this problem on the web where I have to load this?
Do I have to make setting in context .
payal sharma

Hi,
If you have been using jspChart v 1.00 :
As shown in the modified , attached PPT :
I will be displaying a bar chart. The length of bar chart is obatined from Sybase database. This chart should be dynamically created depending on the value on
the database and x -axis is exponential.
This will be displayed on a HTML page.
1. I want to know whether,the values can be obtained the values from Sybase database ?
If so, what are the changes.
2. can you tell me the steps to install and run the jspchart v 1.00 on Jrun or any server please.
Any thing else, I need to install like SAX , JCLARK. I am getting errors in this. PL HELP.
3. Is it possible to plot "Exponential values" in the Y-axis. like 0 - 100- 1000 - 10000 - 100000
and the length of the Bar should automaticall be coloured till that Point as shown in the Power point attached.
If not, any suggestions to use any other software.
Thanks in advance.
[email protected]

Out.println in jsp?

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