I'am trying to connect to a MS-SQL 2008 R2 server which is located on a 10.x.x.x address in my network.
My java code looks as follows
public void getConnection() throws ClassNotFoundException, SQLException
{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Connection conn = DriverManager.getConnection("jdbc:sqlserver://10.x.x.x:1433/TestTv","username","password");
}
But i get an error as follows
com.microsoft.sqlserver.jdbc.SQLServerException: The port number
1433/TestTv is not valid.
I have also tried with port 1443 and same issue. How and where can i check on my 2008 R2 server what port to use? Under sql server configuration manager Protocols for SQLEXPRESS TCP/IP port is set to 1443 and the port under client protocols is set to 1433.
Anyone who can point me in the right direction?
Why are you adding /TestTV onto the end of the address? Try it without that.
If TestTV is a SQL instance, the syntax is jdbc:sqlserver://10.x.x.x\TestTv:1433
Port 1433 is the standard port.
Related
I want to connect Java class file with SQL server 2012. I have logged in with SQL server authentication, but I am receiving an error when connecting.
Error:
The TCP/IP connection to the host 127.0.0.1, port 1433 has failed.
Error: "Connection refused: connect. Verify the connection properties.
Make sure that an instance of SQL Server is running on the host and
accepting TCP/IP connections at the port. Make sure that TCP
connections to the port are not blocked by a firewall.".
My code:
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); //1. Register your driver
//2. get the connection object
//Connection con = DriverManager.getConnection("jdbc:sqlserver://localhost;databaseName=aysha","sa","admin");
Connection con = DriverManager.getConnection("jdbc:sqlserver://127.0.0.1;databaseName=aysha","user=sa","password=admin");
//"jdbc:sqlserver://127.0.0.1:1433; Instance=SQL2008;" + "databaseName=MB;user=sa;password=123;";
//Connection con = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=aysha","sa" , "password");
//3. Prepare a statement
Statement stmt = con.createStatement();
//4. Write the query`
String sql = "Select * from employee";
//5. Execute the statement and
ResultSet rs = stmt.executeQuery(sql);
//6. Process the result set
while (rs.next())
{
System.out.println(rs.getInt(1));
}
Open SQL Server Configuration Manager, and then expand SQL Server 2012 Network Configuration.
Click Protocols for InstanceName, and then make sure TCP/IP is enabled in the right panel and double-click TCP/IP.
On the Protocol tab, notice the value of the Listen All item.
Click the IP Addresses tab:
If the value of Listen All is yes, the TCP/IP port number for this instance of SQL Server 2012 is the value of the TCP Dynamic Ports item under IPAll.
If the value of Listen All is no, the TCP/IP port number for this instance of SQL Server 2012 is the value of the TCP Dynamic Ports item for a specific IP address.
Make sure the TCP Port is 1433.
Click OK.
Easy Solution
Got to Start->All Programs-> Microsoft SQL Server 2012-> Configuration Tool -> Click SQL Server Configuration Manager ->Expand SQL Server Network Configuration-> Protocol ->Enable TCP/IP Right box
Double Click on TCP/IP and go to IP Adresses Tap and Put port 1433 under TCP port.
The error is self explanatory:
Check if your SQL server is actually up and running
Check SQL server hostname, username and password is correct
Check there's no firewall rule blocking TCP connection to port 1433
Check the host is actually reachable
A good check I often use is to use telnet, eg on a windows command prompt run:
telnet 127.0.0.1 1433
If you get a blank screen it indicates network connection established successfully, and it's not a network problem. If you get 'Could not open connection to the host' then this is network problem
Go to Start->All Programs-> Microsoft SQL Server 2012-> Configuration Tool -> Click SQL Server Configuration Manager.
If you see that SQL Server/ SQL Server Browser State is 'stopped'.Right click on SQL Server/SQL Server Browser and click start.
In some cases above state can stop though TCP connection to port 1433 is assigned.
Open %windir%\System32 folder and find SQLServerManagerXX.msc
For example:
C:\Windows\System32\SQLServerManager14.msc
Go to protocols settings then enable TCP/IP port is 1433 by default
As the error says, you need to make sure that your sql server is running and listening on port 1433. If server is running then you need to check whether there is some firewall rule rejecting the connection on port 1433.
Here are the commands that can be useful to troubleshoot:
Use netstat -a to check whether sql server is listening on the desired port
As gerrytan mentioned in answer, you can try to do the telnet on the host and port
important:
after any changes or new settings you must restart SQLSERVER service. run services.msc on Windows
If you are using a named instance, the port you using likely is 1434, instead of 1433, so please check that out using telnet or netstat aforementioned too.
Open Firewall GUI,Open TCP 1433 rule,go to scope tab and add your IP address under Remote IP Address and the problem is solved.
This question already has answers here:
JDBC connection failed, error: TCP/IP connection to host failed
(9 answers)
Closed 5 years ago.
I want to connect Java class file with SQL server 2008. I have logged in with SQL server authentication use: sa, pass:123456. But i am receiving error in connectivity.
static String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
static String dburl = "jdbc:sqlserver://localhost\\SQL2008:1433;Database=Java";
static String user = "sa";
static String password = "123456";
public static void update() throws Exception{
String sql = "UPDATE Categories SET Id='COM' WHERE Id='LAP'";
Class.forName(driver);
Connection conn = DriverManager.getConnection(dburl, user, password);
Statement stmt = conn.createStatement();
stmt.executeUpdate(sql);
conn.close();
}
public static void main(String[] args) throws Exception {
Basic.update();
}
Exception in thread "main" com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host localhost, port 1433 has failed. Error: "Connection refused: connect. Verify the connection properties, check that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port, and that no firewall is blocking TCP connections to the port.".
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(SQLServerException.java:170)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1048)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:829)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:712)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:841)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at Tutorials.jdbc.Basic.update(Basic.java:48)
at Tutorials.jdbc.Basic.main(Basic.java:72)
Probably a little late to answer this question, but doing it for my own benefit.
The actual TCP port to connect to through JDBC can be found in the registry at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\<Instance Name>\MSSQLServer\SuperSocketNetLib\Tcp
Use this value to connect to SQL Server.
For example
"jdbc:sqlserver://localhost\SQLEXPRESS:49922;databaseName=db;user=user;password=secret"
Also ensure that TCP connections are enabled in the server configuration tools.
I think that your dburl may be malformed.
Try this url instead.
String dburl= "jdbc:sqlserver://localhost\\SQL2008:1433;" +
"databaseName=Java;user=sa;password=123456";
Make sure you have Driver jar file and change your dburl to this as mentioned below
try this
String dburl ="jdbc:sqlserver://SQL2008:1433;DatabaseName=Java;user=sa;Password=123456";
Thanks you for your help, i'm fix my problem, it's not error on String dburl= "jdbc:sqlserver://localhost\SQL2008:1433;Database:Java"
it's error port 1433 no connect in SQL server 2008
Where i find the Protocol TCP/IP, if disabled then Enable it Click on TCP/IP, i'm find its properties.
In this properties Remove All the TCP Dynamic Ports and Add value of 1433 to all TCP Port and restart your SQL Server Services > SQL Server
And Its Done...
Thanks all for your help!
TCP/IP Connection Refused.
Run NETSTAT -A to see a list of ports that are open (they'll say LISTENING) If 1433 isn't among them, then SQL server isn't running or isn't listening on that port. Follow Michael Todd's advice from there.
If 1433 is on the list, check your local firewall to see if it allows connections to/from localhost and/or allows connections to 1433.
You can try TELNET 1433 and see if it connects (you should get a blank screen with a cursor blinking at the top left.) (You may have to enable the telnet client in Programs and Features.) If so then you have a problem with your code.
I want to connect Java class file with SQL server 2012. I have logged in with SQL server authentication, but I am receiving an error when connecting.
Error:
The TCP/IP connection to the host 127.0.0.1, port 1433 has failed.
Error: "Connection refused: connect. Verify the connection properties.
Make sure that an instance of SQL Server is running on the host and
accepting TCP/IP connections at the port. Make sure that TCP
connections to the port are not blocked by a firewall.".
My code:
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); //1. Register your driver
//2. get the connection object
//Connection con = DriverManager.getConnection("jdbc:sqlserver://localhost;databaseName=aysha","sa","admin");
Connection con = DriverManager.getConnection("jdbc:sqlserver://127.0.0.1;databaseName=aysha","user=sa","password=admin");
//"jdbc:sqlserver://127.0.0.1:1433; Instance=SQL2008;" + "databaseName=MB;user=sa;password=123;";
//Connection con = DriverManager.getConnection("jdbc:sqlserver://localhost:1433;databaseName=aysha","sa" , "password");
//3. Prepare a statement
Statement stmt = con.createStatement();
//4. Write the query`
String sql = "Select * from employee";
//5. Execute the statement and
ResultSet rs = stmt.executeQuery(sql);
//6. Process the result set
while (rs.next())
{
System.out.println(rs.getInt(1));
}
Open SQL Server Configuration Manager, and then expand SQL Server 2012 Network Configuration.
Click Protocols for InstanceName, and then make sure TCP/IP is enabled in the right panel and double-click TCP/IP.
On the Protocol tab, notice the value of the Listen All item.
Click the IP Addresses tab:
If the value of Listen All is yes, the TCP/IP port number for this instance of SQL Server 2012 is the value of the TCP Dynamic Ports item under IPAll.
If the value of Listen All is no, the TCP/IP port number for this instance of SQL Server 2012 is the value of the TCP Dynamic Ports item for a specific IP address.
Make sure the TCP Port is 1433.
Click OK.
Easy Solution
Got to Start->All Programs-> Microsoft SQL Server 2012-> Configuration Tool -> Click SQL Server Configuration Manager ->Expand SQL Server Network Configuration-> Protocol ->Enable TCP/IP Right box
Double Click on TCP/IP and go to IP Adresses Tap and Put port 1433 under TCP port.
The error is self explanatory:
Check if your SQL server is actually up and running
Check SQL server hostname, username and password is correct
Check there's no firewall rule blocking TCP connection to port 1433
Check the host is actually reachable
A good check I often use is to use telnet, eg on a windows command prompt run:
telnet 127.0.0.1 1433
If you get a blank screen it indicates network connection established successfully, and it's not a network problem. If you get 'Could not open connection to the host' then this is network problem
Go to Start->All Programs-> Microsoft SQL Server 2012-> Configuration Tool -> Click SQL Server Configuration Manager.
If you see that SQL Server/ SQL Server Browser State is 'stopped'.Right click on SQL Server/SQL Server Browser and click start.
In some cases above state can stop though TCP connection to port 1433 is assigned.
Open %windir%\System32 folder and find SQLServerManagerXX.msc
For example:
C:\Windows\System32\SQLServerManager14.msc
Go to protocols settings then enable TCP/IP port is 1433 by default
As the error says, you need to make sure that your sql server is running and listening on port 1433. If server is running then you need to check whether there is some firewall rule rejecting the connection on port 1433.
Here are the commands that can be useful to troubleshoot:
Use netstat -a to check whether sql server is listening on the desired port
As gerrytan mentioned in answer, you can try to do the telnet on the host and port
important:
after any changes or new settings you must restart SQLSERVER service. run services.msc on Windows
If you are using a named instance, the port you using likely is 1434, instead of 1433, so please check that out using telnet or netstat aforementioned too.
Open Firewall GUI,Open TCP 1433 rule,go to scope tab and add your IP address under Remote IP Address and the problem is solved.
Could someone help me with establishing connection with my DB on non-localhost server?
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection("jdbc:mysql://"+SERVER+"/javadb?user=javadb&password=*****");
How could I set-up the SERVER String for my domain www.lmntstudio.cz?
All required files are stored in one folder on the server.
I did it first on my localhost server and everything works well. But with the connection to another server is trouble.
I would recommend not to open MySQL connection from the client/user machine to the server. Because this would make your DB server open and prone to attacks.
Rather consider using web service. call that web service from your JWS application from client side and get the data.
Another point to consider is that opening a connection on a port say 3360 may be blocked by the firewall. If my firewall is set to block any out bound connection on port 3306 the connection could not be established.
Please ensure the MySQL is running in default port 3306 else you need change the port number accordingly.
Connection connection = DriverManager.getConnection(
"jdbc:mysql://www.lmntstudio.cz:3306/javadb", "username", "password");
instead of www.lmntstudio.cz you can use ip of the domain.
run the following in the command line to get the ip
cmd prompt> nslookup www.lmntstudio.cz
The Url syntax as follows
jdbc:mysql://(host/ip):port/databasename", "username", "password"
I am using sqljdbc4.jar in the Build path of eclipse project.
I am trying to connect to SQL Server 2008 in a java program
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String connectionUrl = "jdbc:sqlserver://localhost:1433;" +
"databaseName=sis;user=sample;password=sample;";
connection = DriverManager.getConnection(connectionUrl);
But I am getting the following error.
The TCP/IP connection to the host has failed. java.net.ConnectException: Connection refused: connect
I tried the following
Firewall off
Enabled TCP/IP in SQL Server configuration manager --> CLient protocols
SQL Server browser service is also running
Please let me know what other things should I try.
Thanks
Firewall off which way, this way??? open/enable port localhost:1433
run cmd and paste
netsh firewall set portopening protocol = TCP port = 1433
name = SQLPort mode = ENABLE scope = SUBNET profile = CURRENT
2/ change Sql Server authentication from
Windows authe... to Sql Server and Windows authentification (Mixed mode)
3) your version is SQL Server 2008 or SQL Server 2008 Express, if Express, then search on downloaded package (contains excelent help inc examples) how to connect Express on Localhost, there is difference localhost\sqlexpress
here and here and here
4) no idea how to connected, there are TCP/IP and Names Pipes too
EDIT:
5) in Management Studio you have to add new User (SQL autenthification) and assign to the decision Database (whatever or Model too) is there ??? aren't you