I am trying to make jdbc-Odbc connection without making the DSN but is throwing the exception. I am using the following code and it is throwing data source name not found no default driver specified exception.
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection(
"Jdbc:Odbc:Driver={Microsoft Access Driver(*.mdb)}; Dbq=d:/new folder/db1.mdb;");
}
catch(Exception ex)
{
ex.printStackTrace();
}
suggest me whats wrong in this code.thanks in advance
Related
I have a sample code to connect to SQLServer is given below :
Connection conn=null;
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn= DriverManager.getConnection(" jdbc:sqlserver://localhost:1433;instance=SQLEXPRESS;databaseName=Test" );
System.out.println("connected");
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
When I execute this code, I'm getting an exception given below :
java.sql.SQLException: No suitable driver found for jdbc:sqlserver://localhost:1433;databaseName=Test
at java.sql.DriverManager.getConnection(DriverManager.java:689)
at java.sql.DriverManager.getConnection(DriverManager.java:270)
at JDBCSample.main(JDBCSample.java:14)
I think the jar for SQLServer is not supporting or typo in the connection string.
Download SQLServer 2008 R2 compatible jar from here :
https://www.microsoft.com/en-in/download/details.aspx?id=11774
Steps :
Click on Download :
Select sqljdbc_6.0.8112.200_enu.tar.gz or sqljdbc_6.0.8112.200_enu.zip if shown.
Click on Next to start downloading.
After downloading, extract the content. Now, go into sqljdbc_6.0/enu/jre8 or sqljdbc_6.0/enu/jre7and copy the jar based on the jdk you are using.
Add the jar in the classpath of the project.
Fix this line
Connection conn = DriverManager.getConnection(" jdbc:sqlserver://localhost:1433;databaseName=Test" );
to this by removing space.
Connection conn = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=Test");
Seems like you need an JDBC driver supporting your type and version of your SQL Database. Maybe your version of the driver is the wrong one?
You should check this out: https://javarevisited.blogspot.com/2016/09/javasqlsqlexception-no-suitable-driver-mysql-jdbc-localhost.html
What is the DriverManager doing at lines 689 and 270?
I how does one check to see whether or not they have JDBC connector for mySQL installed in Mac OS?
You need to execute Class.forName("com.mysql.jdbc.Driver") inside a try-catch block in order to confirm if the MySQL JDBC driver is in the classpath or not. If it won't be found in the classpath, ClassNotFoundException will be thrown which you can capture and show an error message as shown below:
try {
Class.forName("com.mysql.jdbc.Driver");
} catch (ClassNotFoundException ex) {
System.out.println("Error: MySQL JDBC driver not found.");
}
You can try to instantiate the mysql jdbc driver class":
try {
// The newInstance() call is a work around for some
// broken Java implementations
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (Exception ex) {
// handle the error
}
I need to connect to my database from a standalone Java application.
I try with this code, but it gets stuck on the DriverManager.getConnection line.
try{
String url = "jdbc:mysql://192.168.2.11:1121/TEST";
Class.forName("com.mysql.jdbc.Driver");
System.out.println("Before");
Connection conn = DriverManager.getConnection(url,"test","test");
System.out.println("After");
} catch (SQLException e ) {
System.err.println("Sql exception! ");
System.err.println(e.getMessage());
} catch (ClassNotFoundException e) {
e.printStackTrace();
System.err.println(e.getMessage());
}
The output I get is the following:
Before
and nothing else.
This is the db configuration page in MySQL(obviously it works via MySQL)
I'd appreciate any help
Same old question's but without answer
It seems that you are trying to connect to an Oracle database with MySQL driver. According to your configuration, you should change the connection string from jdbc:mysql://192.168.2.11:1121/TEST to jdbc:oracle:thin:#192.168.2.11:1121:1521:xe and use the Oracle driver oracle.jdbc.driver.OracleDriver instead of com.mysql.jdbc.Driver. You can download it here.
As suggested from Nigel Ren, the error was that is it an Oracle db.
I solved editing the code as follow
String url = "jdbc:oracle:thin:#192.168.2.11:1511:XE";
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conn = DriverManager.getConnection(url,"test","test");
This question already has answers here:
Connect Java to a MySQL database
(14 answers)
Closed 7 years ago.
Below is the code I used for jdbc connection
String dbUrl="jdbc:mysql://localhost:3306/mysql";
String user= "kumar";
String pwd="ratiol";
try (Connection connection = DriverManager.getConnection(dbUrl, user, pwd)) {
System.out.println("Database connected!");
} catch (SQLException e) {
throw new IllegalStateException("Cannot connect the database!", e);
}
but I got error as below-
Exception in thread "main" java.lang.IllegalStateException: Cannot connect the database!
at jdbcConnection.Jdbcdemo.main(Jdbcdemo.java:22)
Caused by: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/mysql
at java.sql.DriverManager.getConnection(DriverManager.java:596)
at java.sql.DriverManager.getConnection(DriverManager.java:215)
at jdbcConnection.Jdbcdemo.main(Jdbcdemo.java:19)
Can you please tell me how can I get jdbc url?
I am using eclipse(mars) in ubuntu 14.04
if you are using netbeans, right click project -->properties -->libraries-->add library and select MySQL JDBC Driver
just add the com.mysql.jdbc.Driver to the lib folder in you program files.
This is what you wrote
try (Connection connection = DriverManager.getConnection(dbUrl, user, pwd)) {
System.out.println("Database connected!");
} catch (SQLException e) {
throw new IllegalStateException("Cannot connect the database!", e);
}
it would be like this:
Connection con = null;
try {
//registering the jdbc driver here, your string to use
//here depends on what driver you are using.
Class.forName("something.jdbc.driver.YourFubarDriver");
Connection connection = DriverManager.getConnection(dbUrl, user, pwd)
} catch (SQLException e) {
throw new RuntimeException(e);
}
Please check Class.forName not more needed when using JDBC v.4
Let's take a quick look at how we can use this new feature to load a
JDBC driver manager. The following listing shows the sample code that
we typically use to load the JDBC driver. Let's assume that we need to
connect to an Apache Derby database, since we will be using this in
the sample application explained later in the article:
Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
Connection conn =
DriverManager.getConnection(jdbcUrl, jdbcUser, jdbcPassword);
But in JDBC 4.0, we don't need the Class.forName() line. We can
simply call getConnection() to get the database connection.
Note that this is for getting a database connection in stand-alone
mode. If you are using some type of database connection pool to manage
connections, then the code would be different.
There are plenty of reason for the exception No suitable driver found for jdbc:mysql like
Your JDBC URL can be wrong.
ClassPath/BuildPath/Lib folder missing the connector jar.
Driver Information is Wrong.
Just load the driver first:
Class.forName("com.mysql.jdbc.driver");
Here's my code:
import java.sql.*;
public class DBConnector {
private static Connection conn;
public static void connectToDB()
{
//load the driver
try
{
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
System.out.println ("Driver successfully loaded");
}
catch (ClassNotFoundException c)
{
System.out.println ("Unable to load database driver");
}
//connect to the database
try
{
String filename = "TopYouTubeVideos.mdb";
String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=";
database += filename.trim () + ";DriverID=22;READONLY=true}";
conn = DriverManager.getConnection (database, "", "");
System.out.println ("Connection database successfully established");
}
catch (Exception e)
{
System.out.println ("Unable to connect to the database");
}
}
The output is:
Driver successfully loaded
Unable to connect to the database
This has worked on a different computer than mine, connecting to the database through exactly the same code... does anyone have any idea why?
Thanks in advance :)
EDIT: I'm running Access 2007, Windows 7 64bit
By checking for the error, I get: java.sql.SQLException: [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
From a little bit of research it seems this is a problem with my 'data source name'. I put my database file in the project folder, and the name is correct. Why is it not finding it?
EDIT: No, the database was the same on both computers. In the same folder as well.
EDIT: I think I may need to create a system dsm. Following the instructions on the internet dosent work though, because I dont have the same files as them..
EDIT: I've tried to install that but it hasn't made a difference. My version of access is 64 bit alongside my version of netbeans..
Try installing a database engine + JVM that are both running in the same archeticture (i.e. 32bit), otherwise, you would receive a mismatch exception. I assume your JVM is 64bit but your database engine is not, so try installing a 64bit engine from the following link:
http://www.microsoft.com/en-us/download/details.aspx?id=13255