I am getting the following error while connecting to the MS SQL 2008 R2 from a specific server, from other severs it works fine.
com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "SQL Server returned an incomplete response. The connection has been closed.".
The following is my code to connect to the database:
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn = DriverManager.getConnection(db_info, db_userid, db_password);
Related
Trying to connect o MS SQL server that runs on the same Win 10 machine with my project in Eclipse:
String url = "jdbc:sqlserver://GOLD\\SQLEXPRESS;databaseName=PrintLog;";
Connection conn = DriverManager.getConnection(url ,"user","passwd");
But got exception:
com.microsoft.sqlserver.jdbc.SQLServerException: The connection to the host GOLD, named instance sqlexpress failed. Error: "java.net.SocketTimeoutException: Receive timed out". Verify the server and instance names and check that no firewall is blocking UDP traffic to port 1434. For SQL Server 2005 or later, verify that the SQL Server Browser Service is running on the host.
Computer name is GOLD. I can connect to DB from C# without problem. Authentication is enabled both windows and SQL server. I'm expecting to get Windows authentication while connect
SQL server properties:
How to find the problem?
UPD
I got better result by adding port number to connect string:
String url = "jdbc:sqlserver://GOLD\\SQLEXPRESS:1433;databaseName=PrintLog;";
Does it means that default port number is different?
I am trying to connect to SQL DB from Unix server. I have written a Java program for the same and complied in jre6.0 and using sqljdbc4-2.0.jar. But when I try to my jar in Unix server I get the below error:
com.microsoft.sqlserver.jdbc.SQLServerException: The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "SQL Server did not return a response. The connection has been closed.".
at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:1368)
at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1412)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1058)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:833)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:716)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:841)
at java.sql.DriverManager.getConnection(DriverManager.java:419)
at java.sql.DriverManager.getConnection(DriverManager.java:467)
at com.tgt.ttedb.TTEDatabaseUpdate.main(TTEDatabaseUpdate.java:31)
Caused by: java.io.IOException: SQL Server did not return a response. The connection has been closed.
at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.ensureSSLPayload(IOBuffer.java:513)
at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.readInternal(IOBuffer.java:570)
at com.microsoft.sqlserver.jdbc.TDSChannel$SSLHandshakeInputStream.read(IOBuffer.java:562)
at com.microsoft.sqlserver.jdbc.TDSChannel$ProxyInputStream.readInternal(IOBuffer.java:757)
at com.microsoft.sqlserver.jdbc.TDSChannel$ProxyInputStream.read(IOBuffer.java:745)
at com.ibm.jsse2.b.a(b.java:215)
at com.ibm.jsse2.b.a(b.java:18)
at com.ibm.jsse2.SSLSocketImpl.a(SSLSocketImpl.java:215)
at com.ibm.jsse2.SSLSocketImpl.h(SSLSocketImpl.java:693)
at com.ibm.jsse2.SSLSocketImpl.a(SSLSocketImpl.java:535)
at com.ibm.jsse2.SSLSocketImpl.startHandshake(SSLSocketImpl.java:710)
at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(IOBuffer.java:1379)
I am trying to connect to SQL Server 2014 with Java 7 via JDBC driver and the error that the app throws is :
The driver could not establish a secure connection to SQL Server by using Secure Sockets Layer (SSL) encryption. Error: "SQL Server returned an incomplete response. The connection has been closed."
My code is:
driver ="com.microsoft.sqlserver.jdbc.SQLServerDriver";
url ="jdbc:sqlserver://Ip:port;databasename=xxx";
user = "xxx";
pass = "xxx";
Class.forName(driver);
connection = DriverManager.getConnection(url, user, pass);
I downloaded the ODBC driver package from MSDN and have tried using each of the following in turn: sqljdbc.jar, sqljdbc4.jar, sqljdbc41.jar, and sqljdbc42.jar, but I got the same error each time.
I resolve the issue using JTDS as driver manager , my code now is :
driver ="net.sourceforge.jtds.jdbc.Driver;
url ="jdbc:jtds:sqlserver://Ip:port;databasename=xxx";
user = "xxx";
pass = "xxx";
Class.forName(driver);
connection = DriverManager.getConnection(url, user, pass);
and i added the lib jtds1.5.1 in my classpath.
I am using
Windows 7
Netbeans IDE 7.1.2
SQL Server Management Studio Express 2005
JDK1.6
I am getting the below error while connecting to the database:
com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host has failed. java.net.ConnectException: Connection refused: connect
My connection string is:
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Connection connection = DriverManager.getConnection(
"jdbc:sqlserver://127.0.0.1:1433;databaseName=dbcm;" +
"user=sa;password=sa");
I've checked below things:
In SQL Server Configuration Manager, Protocols for SQLEXPRESS : TCP/IP Enabled
In fact I made enable remaining 3 too.
SQL Server(SQLExpress) and SQL Browser Service both are running.
I followed the steps below to successfully connect to an SQLExpress instance using JDBC:
Configure TCP/IP communication with SQL Express
Open SQL Server Configuration Manager.
Go to SQL Server Network Configuration -> Protocols for SQLEXPRESS
Set the status of TCP/IP protocol to "Enabled" (if it is already not).
Open Properties window for TCP/IP, go to IP Addresses section.
Go to the bottom of this property page and set the TCP Port under IPAll to 1433.
Connect to the SQLExpress instance using Microsoft's JDBC driver for SQL Server
JDBC URL: jdbc:sqlserver://localhost;instance=SQLEXPRESS;databaseName=<your DB>;user=<your User>;password=<your Passwd>
I have a java program that connects to a MS SQL database. The program works perfectly when running through eclipse however I get an error when I run it through AIX:
java.sql.SQLException: Network error IOException: A remote host refused an attempted connect operation.
I am using jtds to connect:
String connectionString = "jdbc:jtds:sqlserver://"+dropez_ip_address+"/"+dropez_db_name;
ResultSet rs = null;
Statement stmt = null;
try{
Class.forName("net.sourceforge.jtds.jdbc.Driver");
Connection conn = DriverManager.getConnection(connectionString, dropez_db_username, dropez_db_password);
stmt = conn.createStatement();
}catch(Exception e){}
From jTDS documentation:
Why do I get java.sql.SQLException: "Network error IOException: Connection refused: connect" when trying to get a connection?
The "Connection refused" exception is thrown by jTDS when it is unable to connect to the server. There may be a number of reasons why this could happen:
The server name is misspelled or the port number is incorrect.
SQL Server is not configured to use TCP/IP. Either enable TCP/IP from SQL Server's Network Utility app or have jTDS connect via named pipes (see the URL format for information on how to do this).
There is a firewall blocking port 1433 on the server.
To check whether TCP/IP is enabled and the port is not blocked you can use "telnet 1433". Until telnet doesn't connect, jTDS won't either. If you can't figure out why, ask your network administrator for help.
My bet is your firewall does not allow the AIX host to connect.