JAVA with MYSQL problem

i am using jdk1.6.0_02,apache tomcat 5.5.23 ,mysql integrated with redhat linux EE 4 and.mysql connector java 5.0.7.bin.jar.
look at the the following java program
import java.sql.*;
public class TestMysql
public static void main(String args[])
try
String driver = "com.mysql.jdbc.Driver";
Class.forName( driver );
String url = "jdbc:mysql://localhost/test";
DriverManager.getConnection( url, "root", "mysql" );
catch( Exception x )
{ x.printStackTrace();
i got the following exception
java.sql.SQLException: Access denied for user 'root'@'localhost.localdomain' (us *** password:
YES)
at com.mysql.jdbc.SQLError.createSQLException(java.lang.String, java.lang.Str ***, int)
(Unknown Source)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(int) (Unknown Source)
at com.mysql.jdbc.MysqlIO.checkErrorPacket() (Unknown Source)
at com.mysql.jdbc.MysqlIO.secureAuth411(com.mysql.jdbc.Buffer, int, java.lang .String,
java.lang.String, java.lang.String, boolean) (Unknown Source)
at com.mysql.jdbc.MysqlIO.doHandshake(java.lang.String, java.lang.String, jav a.lang.String)
(Unknown Source)
at com.mysql.jdbc.Connection.createNewIO(boolean) (Unknown Source)
at com.mysql.jdbc.Connection.Connection(java.lang.String, int, java.util.Prop erties,
java.lang.String, java.lang.String) (Unknown Source)
at com.mysql.jdbc.NonRegisteringDriver.connect(java.lang.String, java.util.Pr operties)
(Unknown Source)
at java.sql.DriverManager.getConnection(java.lang.String, java.util.Propertie s)
(/usr/lib/libgcj.so.5.0.0)
at java.sql.DriverManager.getConnection(java.lang.String, java.lang.String, j
ava.lang.String) (/usr/lib/libgcj.so.5.0.0)
at Connect.main(java.lang.String[]) (Unknown Source)
access denied problem. but the user name and password are correct. i can login to mysql by using
the same username and password.
but when connecting through java , i can't ? what is the problem?
can u help me.?
actually i am working in JSP. and when i got this problem, i created a small java program for testing.
here i am submitting the java program.

friend please put your code inside
// your code goes here it will more readable and other can solve it better.
==================
and your problem tells that you must set access permission inside
mySQL server.
or try with creating new User with password.
EnJOY.
Ghanshyam
Edited by: Ghanshyam on Sep 28, 2007 4:13 PM

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1     localhost                    root          68d4f47c49a579c9
2     localhost.localdomain          root          68d4f47c49a579c9
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Pls help me.
Edited by: SUMESHBABU_R on Sep 30, 2007 11:36 PM

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     display dialog errMsg
end try
return theResult
can someone here help me out?

I just had the same problem you described below. I did some searching on the subject in the forums and there seems to be an issue with A.Pack on dual processor machines. I kept getting errors until I shut one of the processors off. The encoding went thru on the first attempt after that.
There is a system preference pane called Processor that will allow you to shut off one of the processors. Then launch A.Pack and encode. I believe this preference pane is installed when you install the developer software with xcode. The developer software can be found on the Tiger install disc.
Also, they have done away with A.Pack and this issue in DVDSP 4. Apparently A.Pack is integrated somehow into Compressor.
Hope this helps. Good luck.
Dual 1.25GHz Mac OS X (10.4.3) 1.25GB Ram 22" Cinema & 17" Acer

Need help on java with mysql...

I want to make application that will use mysql as database. I have downloaded mysql connector j but i'm confuse about how to install it to jdk. for reference, i'm using windows xp, phptriad that have mysql 4.1.
After that, how do I connect my application to the database?
please help...
Thanks before...

Have a look at this tutorial:
http://java.sun.com/docs/books/tutorial/jdbc/index.html

Using java with mysql JDBC

Hello
I'm trying to write a program which reads in tab-delimeted text files and then stores the results in a mysql database. The files are roughly 20,000 lines long and can have up to 10 columns, so for the biggest files I have 200,000 pieces of data to be stored seperately in the database.
I'm currently using the readLine() method of bufferedreader, then using the split function to seperate the string into tokens. The problem is that it seems to be very slow. It is a lot of information, and im not running it on a very fast machine, but even so im sure there must be a more efficient way of acheiving this.
Here's some of my code:
BufferedReader in = new BufferedReader(new FileReader("test.res"));
while((result = in.readLine()) != null) {
result = in.readLine();
aLine = result.split("\t");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[0] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[1] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[2] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[3] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[4] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[5] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[6] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[7] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[8] +"')");
stmt.executeUpdate("INSERT INTO test(words)" + "values('" + aLine[9] +"')");
I would appreciate any advice thanks.
PS this is the first time ive tried anything like this so im probably missing something obvious.

Form the example you have chosen it seems to me, that your table only has one column (words) and that you have multiple value entries for that column in one line of your text file ?!
That is strange. Normaly I would assume (like the other answers indicate) that you have several columns and that each line in your text file has n values each for a different column.
Have look at PreparedStatement.
// the name of your connection is con, you have six columns named col1 to col6 and six entries per line, All six are strings...
PreparedStatement pstmt = con.prepareStatement("insert into test (col1 , col2 , col3,col4,col5,col6) values( ? , ? , ? , ? , ? , ?)") ;
BufferedReader in = new BufferedReader(new FileReader("test.res"));
while((result = in.readLine()) != null) {
   result = in.readLine();
   aLine = result.split("\t");
   for (int i = 0 ; i < 6 ; i++) {
       pstmt.setString((i+1),aLine) ;
pstmt.executeUpdate() ;
But this is still not the fastest approach. MySQL supports bulk imports
Have look at this feature. Maybe the fastest way is to 'convert' the textfile into something like a MySQL dump an than process it using it the MySQL import features.

Toplink with mysql: problem with blob size

I'm using toplink with a mysql database. I want to store some data in a blob.
In mysql there exist different sizes of blobs (in my case I need a mediumblob).
But if I create the scheme for the database with jpa/toplink it alway creates only a column with type blob.
I can explicitly tell the database to use a mediumblob by this:
@Column("MEDIUMBLOB")
But by doing this I limit my program to mysql of course, as this data type is not known to other databases.
Does anybody know a more elegant solution to setting the blob size?
for example with hibernate it can be done this way:
@Column(length=666666)

Looks like you are using JPA, and in JPA you would set the columnDefinition to the type that you want, e.g.
@Lob
@Column(name="BLOBCOL", columnDefinition="MEDIUMBLOB")
byte[] myByteData;
As you mentioned, this does introduce a dependency on the database. However, you can always either put the Column metadata in XML, or override it with something else later in XML.
The length attribute was intended and specified for use with Strings but I guess there is no reason why it couldn't be used for BLOBs as well (please enter an enhancement request, or submit the code to add the feature to EclipseLink). Be aware, though, that doing so at this stage is going to be introducing a dependency on the provider to support a non-spec defined feature.

JAVA with MYSQL problem

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