Populating my dropdown menu from MySQL database using jsp

I my database i have a table of users and i want everytime a user is added the dropdown menu gets updated, this is make updating of user's profile easy. I tried the one bellow but still get me 80 errors:
----connection String------
<select name="userName" id="userName">
<% for(int i=1; i<=resultsList; ++i){%>
<option value="<%=out.println(rs.getUserName(1))%>"><%=out.println(rs.getUserName(1))%></option>
<option value="<%=out.println(rs.getUserName(i))%>"><%=out.println(rs.getUserName(i))%></option>
<%}%>
</select>
Pls i need help

80 errors, you say?
I'm not a fan of writing muddled jsp pages that refer to the database layer. If you're willing to learn JSF or some other web framework, you'll being able to write better code and never use a scriptlet again.

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I have a vital form that clients fill out, which is passed to many people in the company along the workflow. The form is a Planner and we have in the following PDF, Word Doc..
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JSP? Why?
start here: [http://java.sun.com/developer/onlineTraining/JSPIntro/contents.html]

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Hi All,
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<%
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please help.
<%@ page language="java" import="java.sql.*" %>
<%
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%>
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<jsp:useBean id="user" class="beans.User" scope="session" />
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</font>
<form action="marking.jsp" method="post">
<h4 align="center">
<input type="submit" value="submit">
</h4>
</form>
</font>
</body>
</html>

sorry guys. the code is given below clearly.
<%@ page language="java" import="java.sql.*" %>
<%
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%>
<html>
<head><title>StudentRegistration Front</title></head>
<jsp:useBean id="user" class="beans.User" scope="session" />
<body>
<font color="blue">
<h2 align="center">
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</h2>
</font>
<form action="marking.jsp" method="post">
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</form>
</font>
</body>
</html>

How to verify if user already exists in MySQL database using JSP?

Hi, I am trying to create a website that allows users to register and then login. All regsitration details are stored in a MySQL table and I am attempting to have a java bean check that a new user does not already exist by looking up the username. However, I cannot get this to work, the bean is allowing anyone through. I believe there may be a problem with my while loop as the bean checks through the stored usernames in the database. Any suggestions appreciated thanks. See my code below:[
code]package foo;
import java.sql.*;
import java.util.*;
public class FormBean {
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     private String lastName;
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     private String userName;
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               userName="";
               allOk=false;
try {
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          String DbUserName="";
          ResultSet rst=stat.executeQuery(query);
          while(rst.next()) {
DbUserName=rst.getString("u_name");
if (userName.equals(DbUserName)) {
allOk=false;
errors.put("userName","User name already exists, please choose another");
userName="";
conn.close();
break;
} catch (Exception ex) {
ex.printStackTrace();
          if (password1.equals("") ) {
               errors.put("password1","Please enter a valid password");
               password1="";
               allOk=false;
          if (!password1.equals("") && (password2.equals("") || !password1.equals(password2))) {
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               password2="";
               allOk=false;
return allOk;
     public String getErrorMsg(String s) {
          String errorMsg =(String)errors.get(s.trim());
     return (errorMsg == null) ? "":errorMsg;
     public FormBean() {
     firstName="";
     lastName="";
     email="";
userName="";
     password1="";
     password2="";
     errors = new Hashtable();
     public String getFirstName() {
          return firstName;
     public String getLastName() {
          return lastName;
     public String getEmail() {
          return email;
     public String getUserName() {
          return userName;
     public String getPassword1() {
          return password1;
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     public void setPassword1(String p1) {
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     public void setPassword2(String p2) {
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Hmm, tried that and now have more build errors in the finally section.
init:
deps-jar:
Compiling 1 source file to C:\resin-2.1.11\doc\examples\basic\WEB-INF\classes\JavaLibrary1\build\classes
C:\resin-2.1.11\doc\examples\basic\WEB-INF\classes\JavaLibrary1\test\FormBean.java:57: cannot resolve symbol
symbol : variable rst
location: class foo.FormBean
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C:\resin-2.1.11\doc\examples\basic\WEB-INF\classes\JavaLibrary1\test\FormBean.java:57: cannot resolve symbol
symbol : variable rst
location: class foo.FormBean
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C:\resin-2.1.11\doc\examples\basic\WEB-INF\classes\JavaLibrary1\test\FormBean.java:58: cannot resolve symbol
symbol : variable stat
location: class foo.FormBean
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C:\resin-2.1.11\doc\examples\basic\WEB-INF\classes\JavaLibrary1\test\FormBean.java:58: cannot resolve symbol
symbol : variable stat
location: class foo.FormBean
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C:\resin-2.1.11\doc\examples\basic\WEB-INF\classes\JavaLibrary1\test\FormBean.java:59: cannot resolve symbol
symbol : variable conn
location: class foo.FormBean
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C:\resin-2.1.11\doc\examples\basic\WEB-INF\classes\JavaLibrary1\test\FormBean.java:59: cannot resolve symbol
symbol : variable conn
location: class foo.FormBean
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6 errors
BUILD FAILED (total time: 1 second)Just for a quick test, I deleted the sql exception and finally code and replaced it with a regular exception just to see what happened and got no build errors, however when I run the form I am getting an sql exception from the prepared statement, parameter out of range (1 > 0). I tried reading into prepared statements, and although I now understand their basics, I still have no idea why I'm getting this error?

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               results = new Object[numberOfColumns];
               while ( resultSet.next() )
                    for ( int i = 1; i <= numberOfColumns; i++ )
                         results[i] = resultSet.getObject(i);
                         System.out.print(resultSet.getString(i) + " | " );
                    System.out.println();
               resultSet.close();
        catch (SQLException ex)
            while (ex != null)
                System.out.println ("SQL Exception: " + ex.getMessage () );
                ex = ex.getNextException ();
          for (int i=0;i<results.length ;i++ )
               System.out.println(results);
          return results;
public void Close()
try
statement.close();
connection.close();
catch (SQLException ex)
while (ex != null)
System.out.println ("SQL Exception: " + ex.getMessage () );
ex = ex.getNextException ();
Server Code:
import java.io.*;
import java.net.*;
public class TestUpdateDB
     public static void main(String[] args)
          System.out.println ( "Server is active" );
          try {
          ServerSocket sock = new ServerSocket ( 1983 );
          while ( true )
               try
                    Socket mySock = sock.accept();
                    ObjectInputStream iStream = new ObjectInputStream(mySock.getInputStream());
                    ObjectOutputStream oStream = new ObjectOutputStream(mySock.getOutputStream());
                    Object temp = iStream.readObject();
                    String entry = (String)temp;
                    System.out.println ( entry );
                    dbWrapper1 myDB = new dbWrapper1();
                    myDB.Open();
                    Object [] query = myDB.Select(entry);
                    int size = query.length;
                    oStream.writeInt(size);
                    for (int i=1 ; i <= query.length ; i++)
                         oStream.writeObject( query );
                    myDB.Close();
               catch ( Exception exp )
                    exp.printStackTrace ();
          catch ( Exception exp ) {
            exp.printStackTrace();

Sir,
The exception is probably in here.
for ( int i = 1; i <= numberOfColumns; i++ ){
results[i] = resultSet.getObject(i);
System.out.print(resultSet.getString(i) + " | " );
}ResultSet counting begins with 1 but array indexing begins with 0 your code should look more like.
for ( int i = 0; i <= numberOfColumns; i++ ){
results[i] = resultSet.getObject(i+1);
System.out.print(resultSet.getString(i+1) + " | " );
}Sincerely,
Slappy

How to get the data from mysql database which is being accessed by a PHP application and process the data locally in adobe air application and finally commit the changes back in to mysql database through the PHP application.

How to get the data from mysql database which is being accessed by a PHP application and process the data locally in adobe air application and finally commit the changes back in to mysql database through the PHP application.

If the data is on a remote server (for example, PHP running on a web server, talking to a MySQL server) then you do this in an AIR application the same way you would do it with any Flex application (or ajax application, if you're building your AIR app in HTML/JS).
That's a broad answer, but in fact there are lots of ways to communicate between Flex and PHP. The most common and best in most cases is to use AMFPHP (http://amfphp.org/) or the new ZEND AMF support in the Zend Framework.
This page is a good starting point for learning about Flex and PHP communication:
http://www.adobe.com/devnet/flex/flex_php.html
Also, in Flash Builder 4 they've added a lot of remote-data-connection functionality, including a lot that's designed for PHP. Take a look at the Flash Builder 4 public beta for more on that: http://labs.adobe.com/technologies/flashbuilder4/

Can't Connect to the Mysql Database using J2SE jdk1.5

Can anyone tell me why this error occurs ????????????????????
Following are the codes ;
package dbconnect2;
import java.sql.*;
public class dbconn2 {
public static final String URL =
"jdbc:mysql://localhost:3306/test";
public static final String USERNAME = "test";
public static final String PASSWORD = "password";
* @param args the command line arguments
public static void main(String[] args) throws Exception {
// TODO code application logic here
Connection connection = null;
try {
Class.forName("com.mysql.jdbc.Driver");
connection = DriverManager.getConnection(URL,
USERNAME, PASSWORD);
Statement stm = connection.createStatement();
ResultSet rs = stm.executeQuery("select * from emp");
while (rs.next())
String strnaam = rs.getString("emp_name");
System.out.println(strnaam);
finally {
if (connection != null)
connection.close();
================================================================================
This is the run time error ;
init:
deps-jar:
compile:
run:
Exception in thread "main" java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at dbconnect2.dbconn2.main(dbconn2.java:39)
Java Result: 1
BUILD SUCCESSFUL (total time: 2 seconds)
please help me to sort this out
Thanks
Sishani

I've solved the DW problem by changing the site folders from
'db' to 'wwwroot' e.g. 'C:\CFusionMX\db\' is now
'C:\CFusionMX\wwwroot\
However I'm now back to my original problem. I've lost my
mqysql connection in CF Adminstrator. Before I made these changes I
could connect to my mysql databases using the following settings:
JDBC URL: jdbc:mysql://localhost:3306/test
Driver Name: MySQL Connector J
using the following Java path and file:
C:\CFusionMX\wwwroot\WEB-INF\lib\mysql-connector-java-3.0.17-ga-bin.jar
Now these settings give me the following error:
"Connection verification failed for data source: javaserver
[]java.sql.SQLException: SQLException occurred in JDBCPool
while attempting to connect, please check your username, password,
URL, and other connectivity info.
The root cause was that: java.sql.SQLException: SQLException
occurred in JDBCPool while attempting to connect, please check your
username, password, URL, and other connectivity info"
Any suggestions on this would also be welcome.
Thanks again to everyone for their help.
Sincerely,
Graham A. Kerby

Populating my dropdown menu from MySQL database using jsp

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