What should be the connection string for MSSQL Database in JAVA? Something like this.
Like someother things I want to know that Is there any password in connection string like password of my computer? what should be the port number, url etc? If you need more information about the connection let me know.
P.S. The black line has the servername.
My Connection values
datasource.driver=com.microsoft.sqlserver.jdbc.SQLServerDriver
datasource.url=jdbc:sqlserver://MSSQLSERVERFULL;databaseName=xproctor;
datasource.user=JUNAID-VAIO\Shamim
datasource.password=
ERROR:
here is the ERROR I get while trying to connect database!!
Error querying database. Cause:
org.springframework.jdbc.CannotGetJdbcConnectionException: Could not
get JDBC Connection; nested exception is
org.apache.commons.dbcp.SQLNestedException: Cannot create
PoolableConnectionFactory (The TCP/IP connection to the host
MSSQLSERVERFULL, port 1433 has failed. Error: "null. 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.".)
Use this connection string:
jdbc:sqlserver://;servername=server_name;integratedSecurity=true;authenticationScheme=JavaKerberos
The TCP/IP connection to the host has failed. java.net.ConnectException: Connection refused: connect".
Enable Name pipes, TCP/IP, change Authentication mode, change localhost to 127.0.0.1 or .,
add the Instance Name to the url, change the port, enable port and Apps in the firewall... almost everything.
Its horrible! But the answer for your problem is: open SQL Server Configuration Manager -> Protocols for SQL SQLEXPRESS, select Properties of TCP/IP. In the tab IP Addresses, set the TCPPort in section IPAll to 1433.
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.
I'm trying to add a server as a failover for SQL Server and it is not using the port 1443, I'm using the port 2776. I'm trying to specify it but everything I tried didn't work. How could I do that?
private String url = "jdbc:sqlserver://server1:2776;DatabaseName=db;failoverPartner=server2";
I've tried the following configs, but none of them worked.
...failoverPartner=server2:2776
...failoverPartner=server2,2776
...failoverPartner=server2\\db
But everytime I get exception.
com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host server2, port 1433 has failed. Error: "connect timed out. 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.".
com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host server2:2776, port 1433 has failed. Error: "null. 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.".
com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host server2, 2776, port 1433 has failed. Error: "null. 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.".
From the documentation Connecting to SQL Server with the JDBC Driver - Setting the Connection Properties documentation, property failoverPartner:
Note: The driver does not support specifying the server instance port number for the failover partner instance as part of the failoverPartner property in the connection string. However, specifying the serverName, instanceName and portNumber properties of the principal server instance and failoverPartner property of the failover partner instance in the same connection string is supported.
Worded very confusingly, but it looks like you can't specify a port number for the failover server.
From KB-2284190 From Microsoft (Applications cannot connect to a mirror partner server when using port number in the failoverPartner attribute of the connection string ) I'm pretty much reading the same:
CAUSE
Both the error messages occur due to the fact that SQL Server JDBC drivers (all versions) do not support parsing of port number for FailoverPartner connection string attribute and rely on DNS and SQL Server Browser service (for named instances only) to resolve the connection information for the partner server. In environments wherein the conditions discussed in the Symptoms sections are met, the JDBC driver is not able to resolve the partner server information and hence you get the error message discussed above.
This behavior of SQL mirroring infrastructure is by design. For this reason, Microsoft JDBC Driver version 3.0 supports failover partner attribute value only in the format <server_name>[\<SQL_Server_instance_name>].
RESOLUTION
To work around this problem, use one of the following methods in environments where database mirroring is involved:
For default instances of SQL server that are part of mirroring configuration ensure that they are listening on the default port 1433 for TCP connections.
For named instances, ensure that SQL browser service is running and port 1434 is not blocked on the network and server B is not configured as a hidden instance.
In conclusion, do one of the following:
Specify the failover server to listen on port 1433 for TCP.
Make a named instance and specify the failoverPartner as server_name\instance_name. Make sure SQL Server Browser service is running and port 1434 is not blocked .
I have installed on my pc ms sqlserver express 2012, I am trying to reach it via jdbc but I am not successfull, I get the error:
com.microsoft.sqlserver.jdbc.SQLServerException: connection to the host localhost, 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
I am accessing via the following url: "jdbc:sqlserver://localhost:1433;database=mytest;"
I enabled the tcp/ip via the Sql server configuration manager, but if I run netstat-an I can't see the 1433 port listening.
I disabled windows firewall too...
I am lost :(
Any help?
Thank you!
****UPDATE**
I could overcome the problem by enabling port 1433 on IpAll under Sql Server configuration manager - Sql Server Network configuration - Protocols for SQLEXPRESS - tcp-ip Properties - Ip Addresses. But now I get another error:com.microsoft.sqlserver.jdbc.SQLServerException: Login failed for user 'sa'. ClientConnectionId
Any ideas? thanks!
The answer for the error:
com.microsoft.sqlserver.jdbc.SQLServerException: Login failed for user 'sa'. ClientConnectionId
is:
Go to Object explorer, click on properties (right click on Sql Server name), and on the security tab click on Sql Server and Windows authentication mode.
This worked for me.
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.
I have this error/exception-
SQL Exception: com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host localhost, port 1433 has failed. Error: "connect timed out. 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.".
and my code is-
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String connectionUrl = "jdbc:sqlserver://localhost:1433";
Connection con = DriverManager.getConnection(connectionUrl,"","");
System.out.println("ok");
} catch (SQLException e) {
System.out.println("SQL Exception: "+ e.toString());
}
catch (ClassNotFoundException cE) {
System.out.println("Class Not Found Exception: "+ cE.toString());
}
how can i sovle it,please help me.
This could mean almost anything - basically, it was impossible to connect to port 1433 on localhost. Could be a network problem, could be that the database is not started, could be that it is running but not bound to port 1433.
In a pinch, you can always open a shell and run
telnet localhost 1433
to see if it is possible to make a connection at all.
I had this error.
I fixed it by going into the SQL Server Configuration Manager.
Under SQL Server 2005 Configuration -> Protocols for SQLEXPRESS. Look at the IP Address tab of the Properties of the TCP/IP Protocol.
At the very bottom of the protocol list (under IPALL), the TCP Port field was blank. I put 1433 there, saved, restarted the SQL service and it worked great :)
It's telling you it can't connect.
Check that sql server is available on your local machine on that port.
Check that sql server is accepting connections with the blank name and password you're providing in your getConnection() invocation.
Check that your jdbc url is in the correct form, they're sometimes manufacturer/driver specific.
The error just means that java was not able to connect to your database. Either database is not running or your firewall is blocking connections to it. If you are sure your DB server is up on your localhost, try after disabling your windows firewall.
Lets look at some of the possibilities:
The database server is not listening on localhost:1433 : you probably would get a "connection refused" rather than a "connection timed out"
The database server is catatonic (i.e. in a state where it is not responding to requests) : you could get a "connection timed out".
The database server is massively overloaded : you could get a "connection timed out", but you would probably notice that the machine was very slow.
The local software firewall is configured to block all requests to port 1433 : you could get either "connection refused" or "connection timed out" ... or some other response. (It depends exactly what the firewall does with unwanted traffic.)
The loopback interface (for IP 127.0.0.x) is not configured : you are more likely to get "no route to host" or "no route to network".
The DNS entry for localhost is misconfigured (i.e. localhost doesn't resolve to 127.0.0.x) - lots of things could happen ... depending on how it is misconfigured.
Here are some things you could do to diagnose the problem ... depending on your system:
Look at the configured networks using ipconfig or ifconfig.
Look at "/etc/hosts" to check the entry for localhost
Try to connect to the service using telnet -p 1433
Use "ps" or the task manager to see what processes are running.
Check the local firewall configs to ensure that 1433 is open for (at least) TCP from the configured localhost IP address (probably 127.0.0.1).
I had a problem similar to this, and solved it by adding the line:
System.setProperty("java.net.preferIPv4Stack", "true");
The problem was it used IPv6 instead of IPv4 to access the db host (I used it for a DB on a remote host, not localhost).
Hope it helps.