MYSQL :: Connecting To MYSQL From JAVA

Connecting Java With MYSQL In Wamp Server
import java.sql.*;

public class Connect
{
public static void main (String[] args)
{
Connection conn = null;

try
{
String userName = "root";
String password = "";
String url = "jdbc:mysql://localhost/test";
Class.forName ("com.mysql.jdbc.Driver").newInstance ();
conn = DriverManager.getConnection (url, userName, password);
System.out.println ("Database connection established");
}
catch (Exception e)
{
System.err.println ("Cannot connect to database server");
e.printStackTrace();
}
finally
{
if (conn != null)
{
try
{
conn.close ();
System.out.println ("Database connection terminated");
}
catch (Exception e) { /* ignore close errors */ }
}
}
}
}

I have doubt that it is happening since MySQL is in C:wampMySQl.??
This is the output of StackTrace();

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:276)
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:169)
at Connect.main(Connect.java:14)

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Connecting To A Remote Mysql Server From A Java Application On Another Machine
i've a java application on a (remote/network) machine and mysql running on my local pc.other users who have access to that remote machine must be able to run that java application which will have to get data/send data to the server(/DB) on my local PC. i was able to run the application when its on my local pC using localhost in the connection string. But, now how do i set the connection string so that the java application accesses the DB (/server) from my local PC?

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How To Get The Last ID In From My Table By Connecting From Java
I am trying to get the ID of the last row of my table by following code

ResultSet rs = stmt.executeQuery("SELECT MAX(visitorInfoID) FROM visitorInfoTable");
System.out.println(rs.getInt("visitorInfoID"));

I am sure that this field is Integer.
But when I execute the program then I get the answer by Java Exception:
java.sql.SQLException: Column 'visitorInfoID' not found.

How can I get the last ID of the last row in my table??? Why this doesn't work?

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Connecting To Database Using Java
i am able to connect to mysql database located at localhost:3306 inside tomcat. But i wanna do it in stand alone command line java program.

this is what my code looks like:

com.mysql.jdbc.jdbc2.optional.MysqlDataSource d = new com.mysql.jdbc.jdbc2.optional.MysqlDataSource();

Properties prop = new Properties();
prop.put(Context.INITIAL_CONTEXT_FACTORY, provider);
ctx = new InitialContext(prop);

ctx.bind("jdbc:mysql://localhost:3306/bsidb", d);

// where provider is a string equal to "com.sun.jndi.fscontext.RefFSContextFactory"
// and bsidb is my database name

when i do the look-up it successfully returns the datasource.
and when i do getconnection
it returns a connection to the datasource.

the problem is when i do query... it returns an SQLException: No database selected

i am not using any config files because as i've said, i will do the connection using stand alone java program.
i use mysql4.1 and mysql-connector-java-3.0.16-ga-bin.jar, fscontext.jar are in my classpath.

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Java API To MySQL
--0-413911351-1058468110=:5477
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit

I want to know if there is java API to mySQL like its available for C and C++.

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MySQL -- Java Vs PHP
Does Java work better than PHP with MySQL? What are pros and cons of using
Java or PHP? I am concerned Java may be slower than PHP with MySQL.
Can someone share the experience or point me to some good white papers or
benchmarks?

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MySQL-- Java
I want to make a java-frontend for adding data to a mysql db, have anyone done this?
If so, how?

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MySQL + Java
Basically i want a GUI frontend to connect to a database. My experience of this has been visual basic app and access database. The only thing i liked was that to deploy the user only needed the app and the database, deployment was simply packaging the 2 together.Can i make a database using mySQL and deploy it as in the example above? Or does the user need to have a mySQL installed ? Now i all read about databases mySQL/oracle is of a server running the database and the app connecting. However for my app the information will not be updated or changed and therefore i don't need to connect to a server to access the database?

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Example Of Java Using Mysql
i have development experience with other languages and rdbms. now i am trying to learn java as well as mysql. can anyone share a simple java app that accesses a mysql table? or point me to any web resources that might have such a working example? i would like to see how one accesses a table stored in a local database.

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Mysql And Java
I am using MySQL as a database and am trying to run a sample program to fetch and display data from a table...and dispaly like panel in database
.Please give me the sample code for that .ITs very urgent .I cannot complete my project until ur reply

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Mysql Connector Java JAR
I am making a Java Applet connects to mysql database, it works well in
application mode. When I run it in applet mode, obviously the client
running the applet should have the mysql connector file
(mysql-connector-java-3.0.8-stable-bin.jar).

So the question is how to bundle this mysql jar file with my applet jar
file. I've tried to make both 2 files together in the html file:

archive="PCMApplet.jar;mysql-connector-java-3.0.8-stable-bin.jar"

the GUI shows up but the connection call to database is failed:
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
It seems to me that the mysql-blah.jar is not being used.

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Transactions With Java And MySQL
I'm trying to port the use of postgresql db to mysql. I'm using
Java and having the following problem - I can't seem to write more
than 1 query per execution. Easier to explain with an example that
worked under postgresql and does not using mysql:

aStatement.executeQuery("BEGIN; DELETE FROM table1; DELETE FROM
table1; DELETE FROM table3; COMMIT;");

If I separate this into 5 different queries it works fine. Any
ideas?

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Connection Between Mysql And Java
I have a big problem, that is that in mysql, I send a Timestate data, and when I try to get it with java, I can't save it into any variable, neither string or Timestamp,

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Java To MySQL Connection
I have Data in my MySQL DB. and I wont to use my java class to pull out information from my DB.
my class is this and I wont to add the code in the ***'s
public void getComunicate()
{
url = "jdbc:******:test";

try{
Class.forName("********".Driver");
con = DriverManager.getConnection(url, "MySQL", "1234");
}catch (java.sql.SQLException ex){
System.err.println("SQLException: " + ex.getMessage());

}catch (java.lang.ClassNotFoundException ex){
System.err.println("class not found: " + ex.getMessage());

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Communicating With MySQL Through Java
In java is it possible for me to open a socket with a MySQL database and directly send infomation or would I need to use something like php as a buffer.

I know this isn't secure, but the application I am writing does not neet security. I'm just looking for some method to add information to a database. I made a simple .jar file mhich can do what I am looking for but I now I need something which I can upload to a remote webserver.

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Mysql-connector-java-3.1.13-bin
I've MYSQL 5 installed and I want to connect to MYSQL using BIE JBOSS . I had put the jar file mysql-connector-java-3.1.13-bin.jar in the deploy/jboss/bie.sar folder and in windows environment I was able to connect to the MYSQL DB. But when I try doing the same in LINUX environment , I get the following error ,

Could not create connection; - nested throwable: (java.sql.SQLException: Cannot connect to MySQL server on <IP>:3306. Is there a MySQL server running on the machine/port you are trying to connect to? (java.net.NoRouteToHostException)); - nested throwable: (org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (java.sql.SQLException: Cannot connect to MySQL server on <IP>:3306. Is there a MySQL server running on the machine/port you are trying to connect to? (java.net.NoRouteToHostException)))

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How To Ship Mysql Connector Java JAR
I am making a Java Applet connects to mysql database, it works well in
application mode. When I run it in applet mode, obviously the client
running the applet should have the mysql connector file
(mysql-connector-java-3.0.8-stable-bin.jar).

So the question is how to bundle this mysql jar file with my applet jar
file. I've tried to make both 2 files together in the html file:

archive="PCMApplet.jar;mysql-connector-java-3.0.8-stable-bin.jar"

the GUI shows up but the connection call to database is failed:
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver

It seems to me that the mysql-blah.jar is not being used.

View Replies !

Ship Mysql Connector Java JAR
I am making a Java Applet connects to mysql database, it works well in
application mode. When I run it in applet mode, obviously the client
running the applet should have the mysql connector file
(mysql-connector-java-3.0.8-stable-bin.jar).

So the question is how to bundle this mysql jar file with my applet jar
file. I've tried to make both 2 files together in the html file:

archive="PCMApplet.jar;mysql-connector-java-3.0.8-stable-bin.jar"

the GUI shows up but the connection call to database is failed:
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver

It seems to me that the mysql-blah.jar is not being used.

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Connect To Mysql Server Using Java
i am trying to connect to mysql server running on different machine,from a java program. i am successful with mysql3.0. but with mysql5.0 -alpha i am getting the error like this..java.sql.SQLException: Server configuration denies access to data source.

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Problem With MySql And Java Under Windows
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

import com.mysql.management.driverlaunched.ServerLauncherSocketFactory;

public class ConnectorMXJTestExample {
public static void main(String[] args) throws Exception {
String hostColonPort = "localhost:3306";

String driver = com.mysql.jdbc.Driver.class.getName();
String url = "jdbc:mysql://" + hostColonPort + "/" + "?"
+ "socketFactory="
+ ServerLauncherSocketFactory.class.getName();
String userName = "root";
String password = "";

Class.forName(driver);..................................................

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Deleting Mysql Entries In Java
I am asking the user to put in a number and the java prog will look for the corresponding entry and delete it.

so far i have asked the user and stored their choice and now move onto the part of deleting the entry.

i need to call the method for deleting and pass the parameter of the userÂ´s entered number to it.

if im taking the right approach or if "DAO" patterns would be more useful?

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Java Mysql Show Table Status
I am using java to retrieve a resultset with "show table status" mysql
command. I am having problem reading the [name] and [engine] column.
In the metadata object it is showing as VARCHAR but when I do
getString() it is returning me the object string (e.g. "[B@1e3e7d2")and
not the actual database value. I am using Mysql 4.1 and jdbc driver
3.1. I tried getB/Clob, getBytes, getCharacterStream() and none of
them is working.

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Java In Linux (Redhat 9) To Access MySQL
Using a Java program, I can connect to the test database in MySQL. The
test database is installed using a MySQL utility, and it can be accessed
by any user without supplying a password. The relevant lines in my Java
(Java version 1.4.1) code are:

Connection con = null;
String url = "jdbc:mysql:///test"; // <== no user or password specified
con = DriverManager.getConnection(url);

However, when I try to connect to the accounting database (built as one
follows the Larry Ullman's "MySQL" book), the program fails. I need to
supply a user and a password. The relevant lines are now:

Connection con = null;
String url = "jdbc:mysql:///accounting?user=root&password=pswd"; // <==
con = DriverManager.getConnection(url);

I cannot get a connection. The error message is:

"Invalid authorization specification: Access denied for user:
'root@thorvald' (Using password: YES)"

(thorvald is my machine name.)

I have tried all sorts of variations on the url, trying to access the
accounting database, with no success. I can use the same user/password
of root/pswd within the mysql monitor to access anything I want.

Any ideas?

Again, I am using Linux (Redhat 9) , Java 1.4.1, MySQL 4.0.13, and the
MySQL ConnectorJ 3.0.8 (for Java access to MySQL).

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Connecting To MYSQL From VC++ 6
I'm looking for some assistance in using Embedded SQL in C using VC++ 6.0 to
connect to MYSQL in Windows XP.

This is new to me, but it is my understanding that I need to use a
precompiler. I'm confused about where to get the precompiler. Can someone
explain in simple straight forward terms what I need in order to do this?
I've been Googling for hours with no real answers.

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Connecting To MySql DB From A .NET App
I'm developing a Windows application in C# using Visual Studio 2005. The application should be able to read data from a MySql database. I've developed applications that read data from a Microsoft Sql Server database, using the System.Data.SqlClient namespace. My question is, does this work for MySql? And if not, what should I use? I want to keep my database connectivity simple, only executing querries and maybe stored procedures.

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Connecting To Mysql Using Asp.net
I want to connect to mysql 4.1 db using asp.net.I havent done this before but according to book im using it says all i need is the database provider name (like the provider name for ms access is something like microsoft.jet.oledb....)-i used the myodbc before with asp(which didnt work but thats another story) but the book doesnt mention anything about odbc...yet in the mysql manual it talks about the using the myodbc to connect with asp and asp.net
So the question i have is do i just use the same obdc driver i downloaded for use wih asp....or is the book right and if so does anyone have any idea what the mysql provider name is?

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Connecting MySql To VBA
I am asked at work to connect MySql database to excel through VBA (macros)..how do i do this, does anyone knows a tutorial or somehitng like that, I have prety much created a code, but it does not through me any data back..

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Connecting DMW With PHP/MySQL !!!
When attempting to test the connection to a MySQL database within a PHP site in Dreamweaver, the following error occurs:

An unidentified error has occurred. I have installed Mysql 4.1 and php 5 and run dreamweaver MX with an apache web server. If i create a simple php info() page it pops up fine so the server is fine and so must php. I can log into my Mysql database and select tables etc, so that's fine. But i just can't get Dreamweaver to connect to the database. I get a 'unidentified error' message something to do with the selectDatabase.js.

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Connecting PHP With MySQL
I wanna connect a php document with mySql. So i write the following code...:
$link = mysql_connect("127.0.0.1:3306", "HostName", "Password");
if (!$link) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($link);

I have tried this instead of 127.0.0.1:3306 with localhost but the result i get is:

Warning: mysql_connect(): Client does not support authentication protocol requested by server; consider upgrading MySQL client in D:ServerApache2htdocsPHPFILEsmyfirst.php on line 51

Could not connect: Client does not support authentication protocol requested by server; consider upgrading MySQL client

I have MySQL 4.1 and i do not know what to do!
Please help me i am in great need thank u. I would appreciate it if u mailed me also.

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Connecting To MySQL From PHP
I'm newbie in the world PHP-MySql and I have a problem when I try to connect with my DB form a PHP script.

With the instruction
mysql_connect('localhost', user, password)

I get the error:
Fatal error: Call to undefined function mysql_connect in 'my phpscript'

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Connecting Php And Mysql
how can i connect mysql database to php so that we can prepare it to upload online?

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Connecting To MySql DB From Different PC
I just made a test with mySql on Windows NT. I created a table with different fields, and I made a Java program to connect with JDBC to that DB. It works if I connect from the same PC where mySql DB is. I used this Java sentence to connect:

.....DriverManager.getConnection( "jdbc:mysql://localhost/......

And it made the query I want.

But I would like that a PC in Internet could connect to that DB. I suppose I must put the IP of the mySql server instead of "localhost" on that sentence, but I got this error:

java.sql.SQLException: Invalid authorization specification: A
cess denied for user: 'a@cable87a004.usuarios.retecal.es' (Using password: YES)

I think I should change something on Winmysqladmin at bind-address (my.ini Setup) ?...I have tried to uncomment bind-address and write the IP of the mySql server, but it doesnt work...

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Connecting To A MySQL DB With .NET
I was looking to create a VS.NET program that can connect to a MySQL database on a Linux server. I see that MySQL has some projects that integrate .NET with MySQL but my question is are those projects restricted to using MySQL on a Windows OS or can my program, on a Windows OS, connect remotely to MySQL, on a Linux OS?

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Connecting To MySQL With PHP
Originally Posted by tluther
I am new to MySQL & PHP. I am following samples in book by Kevin Yank on how to connect to MySQL with PHP. I have installed Apache, MySQL 5.0 & PHP 5.2 and am attempting to run as local host. When following the lessions in the book everything was working ok until I tried to connect to MySQL. In the PHP script I am using localhost as the address, root as username and the same password I use when I open MySQL through the command line clinet. I have been able to create and modify a sample database but just can't get PHP to connect. Any suggestions would be appreciated. I will be glad to email you the script I am using to try to connect if you need it.

This is the code I am using:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Our List of Jokes</title>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
</head>
<body>
<?php

// Connect to the database server
$dbcnx = @mysql_connect('localhost', 'root', 'mypasswd');
if (!$dbcnx) {
exit('Unable to connect to the ' .
'database server at this time.');
}

// Select the jokes database
if (!@mysql_select_db('ijdb')) {
exit('Unable to locate the joke ' .
'database at this time.');
}

?>
Here are all the jokes in our database/p>
<blockquote>
<?php

// Request the text of all the jokes
$result = @mysql_query('SELECT joketext FROM joke');
if (!$result) {
exit('Error performing query: ' . mysql_error() . '');
}

// Display the text of each joke in a paragraph
while ($row = mysql_fetch_array($result)) {
echo '' . $row['joketext'] . ''
}

?>
</blockquote>
</body>
</html>

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Connecting To MYSQL Via MS Access
I have recently decided to start using MYSQL instead of MS Access 2003.
After reading through numerous articles i have learnt that i can use
access as a GUI for making changes etc to the MYSQL databases.

My problem is that i am unable to set this up correctly.
give me a set by set guide on how to do this or give me a
link to a site or post that outlines how to do this.

i have searched google without much luck at this point.
I have attempted to use the odbc method but i do not know what to
browse for when the wizard prompts me to browse.
i have never use this method before.

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Connecting To MySQL Using Javascript
Is there and easy way to connect to a MySQL database and retrieve data using Javascript? I've searched online for a tutorial but can't find what I'm looking for.

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Connecting To Mysql Vi ODBC
I'm trying to connect to a remote mysql database via odbc but for some reason I keep getting the following error in the odbc panel
Code:

[MySQL][ODBC 3.51 Driver]Can't connect to MySQL server on '69.65.107.209' (10060)

I added access to % in mysql access host for now to see if it might just work this way... but for some reason I can't get it working.

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Error Connecting To MySQL
hey guys im getting this message when trying to installa classified ads script that i got?

Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

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Connecting Php To Mysql Version 5
My problem is,am trying to connect php with mysql so that i can write to the database and also read from the database in de mysql server. I tryed to use the function mysql_connect(),but i get a message like "Call to undefine function mysql_connect()" in the browser. I have mysql and php on de same computer.

I think i must make some changes in the php ini file(the configuration settings) but i have no idea how to accomplish it. And also which username must i use in the function since i don't use any username when connecting to mysql or i should leave that argument empty?

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VB6 - Connecting To A MySQL Database
I know how to connect to and access MS Access databases with VB6, but I'd really rather use MySQL. Can anyone tell me where I might be able to find a VB6 code example of how to connect & access a MySQL database?

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Connecting To MySQL In Localhost
I am totally new to php and i am using Dreamweaver 8. I am trying to create a page to initiate connection to the MySQL Server 5.0 at localhost, but the browser returns me this error message:

"Fatal error: Call to undefined function mysql_connect() in c:InetpubwwwrootMy_PHPconnect_to_mysql.php on line 11"

The testing code i was trying as below:

<?php
$connection = mysql_connect('localhost', 'root', 'password');
if (!$connection) {
die('Could not connect: ' . mysql_error());
}
echo 'Connected successfully';
mysql_close($connection);

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Connecting To MySQL Through Dreamweaver 8
I'm taking an online class in php, and am trying to follow a tutorial that is supposed to teach me how to connect to MySQL through Dreamweaver. I get to the part where I'm supposed to click the + sign on the databases tab, which brings up the MySQL Connection box.

I type in my connection name, username and password (the tutorial says not to type in the server, because it should be able to find it itself, although I've tried it both ways) and when I click the "select" button to make it find my database, I get this error message: "can't connect to local mysql server through socket '/usr/local/mysql-5.0/data/mysql.sock'(2)"

I'm not running a firewall, and I'm pretty sure I have everything set up correctly, but I may be wrong.

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Connecting To MySql On An XP Machine
I have worked with mySql on my localhost and it does fine. Now I am going to try and login to it from another XP machine. Both machiens are Windows XP Pro SP2. What do I need to type at the command prompt to login to mysql on the other XP machine?

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Connecting To MySQL From A PHP Script
i have installed the latest version of MySQL, and Wordpess, a PHP-based blog. Wordpress has a config file where you set the db name, user name/password, and host name (in this case, 'localhost'). In the past, I have simply input those variables and proceeded with the Wordpress install with no problem. This time, however, it's not working (I get this message: "Error establishing a database connection.This either means that the username and password information in your wp-config.php file is incorrect or we can't contact the database server at localhost. This could mean your host's database server is down.").

I know the database exists,I know the user name and password are correct,and I know the user has the correct rights,because I gave that user *all* rights.I suspect that there is a flag or option I need to set to allow PHP to connect to the db from a web script.

I start the server by manually typing:

/usr/local/bin/mysqld_safe &

Looking at the .err file doesn't show any unusual activity.

Any ideas? Is there "extra" stuff to do to allow internet connections?

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Problems Connecting Mysql With Php
I'm building a PHP website with MySQL databases under windows xp, and i want to know how can i verify that MySQL is comunicating with PHP because the script i got says that there's an error connecting to the database.

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Connecting To A MySQL Database
I'm trying to connect to a database from an ASP.NET page with VB.NET scripting on it. How can I do this? More specifically, what's the VB.NET code for connecting to a database?

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Connecting To MySQL On Another Computer
if possible, how can I connect to mysql on another computer on my home network?

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Connecting Mysql Tables Together
I was wondering if you guys could give me a good idea on how I can connect two tables together in mysql. And also with mysql_query how I would insert in the id number for those two tables. I'm just really kinda confused really on how it works.. But I'll tell you want I do know. Basically I know that in mysql database the tables that you want interact with each has to have one column thats the same. What I don't know is how it really works.

Example: Say that I have two tables in mysql database, and one table is called 'users' and the other is called 'user_post' I know pretty much that say for example in each table I would have a column called something like user_id, ok says that the user_id is a primary_key, so when a person goes to register them self and I use a mysql_query such as the follow: mysql_query("INSERT INTO users (``, `username`, `password`) VALUES('', '$username', '$password')") or die('Datebase error: ' . mysql_error()); that would only bring the value in the user table to 1, seeing that the value was at 0. So my question is how do I connect the two together if when I go: mysql_query("SELECT user_id FROM user_post WHERE id = '" . $_GET['id'] . "'") or die('Database errror: ' . mysql_error()); When the user_post id is still at 0.

I'm sorry if I didn't example this good enough, and if you have any question then just ask me.

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Problems Connecting To MySQL From PHP
I'm having a hard time figuring this one out...

I'm trying to connect to my MySQL server with the 'mysql_connect()' function but I keep getting "Fatal Error: Call to undefined function: mysql_connect() on line 125."

The code worked perfectly on my desktop but as soon as I tried using my laptop I get this error. I can't remember what version of PHP I'm using on my desktop (either 4.2.3 or 4.3.0), but my laptop has version 4.3.3.

I'm been searching the forums and php.net for an answer but I'm not having much luck. Obviously the version of PHP doesn't support the 'mysql_connect()' function, either because of deprecation or because PHP is not set up to support MySQL.

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Connecting To MYSQL From JAVA

i need to connect to a MYSQL database from a JSP... so i believe that if i learn how to connect to the MYSQL database through java... i can use the same method to connect through a JSP... anyways my question is does anyone know how to connect to mysql through java.