Error while connecting to DB2 from JBoss Application Server - java

I'm trying to connect to the AS400 database DB2 from a Java application hosted in JBoss application server. But, I'm getting the below error when ever I run my application:
Apparently wrong driver class specified for URL: class: com.ibm.as400.access.AS400JDBCDriver, url: jdbc:as400://DBSYTEM;driver=toolbox;trace=false;errors=full;prefetch=true;naming=system;libraries=*LIBL
Has anyone ever faced similar problem before?
Thanks,
Veera.

I had exactly the same problem.
Setting connection-url as the following resolved the problem.
jdbc:as400://[systemname]/[schema];extended dynamic=true;package=jbpkg;package cache=true;package library=jboss;errors=full

From the connection URL in your question, I think you're using DB2 on AS/400.
Have you verified the existence of the correct classpath of IBM DB2 for AS/400 JDBC driver? The JDBC driver of IBM DB2 for AS/400 is not provided by JBoss Application Server, it's provided only from IBM.

Related

Is there anyway to connect to Azure SQL Server using jTDS with TLS 1.2?

Our Java app use jTDS 1.3.1 to connect to SQL Server, which works fine until a client trying to put the database on Azure SQL. The connection failed with the following exception:
java.sql.SQLException: Reason: Login failed due to client TLS version being less than minimal TLS version allowed by the server.
I checked the documentation of jTDS, can't see anyway to specify TLS version. Besides replacing it with MS JDBC driver, has anyone succeeded with other work around?
I don't have access to Azure SQL, so I cannot test if reducing the TLS version to 1.0 would work.
Had this same issue when trying to connect a .Net application to a Azure SQL database in Azure managed instance.
Here's how I solved it.
My previous JDBC URL was this:
jdbc:jtds:sqlserver://my-example-instance.c656df8582985.database.windows.net:1433
I just added ssl=require to the end of the URL, so it became:
jdbc:jtds:sqlserver://my-example-instance.c656df8582985.database.windows.net:1433;ssl=require
Solved the issue by chance. Just need to append ";ssl=request" to the connection string. It looks like by default SSL/TLS is disabled. The error message about TLS version is misleading. Hope this help someone in the future.

Java application not connecting to oracle database with correct username/password

I have spring boot application which used ojdbc6 11.2.0.3 driver. Following are my spring data source properties
spring.datasource.username=abc
spring.datasource.password=abc
spring.datasource.url=jdbc:oracle:thin:#myhost:1521:orcl
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.Oracle10gDialect
spring.jpa.hibernate.ddl-auto=update
spring.jpa.hibernate.naming.physical-strategy= org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
spring.jpa.generate-ddl=true
#spring.datasource.driver-class-name=oracle.jdbc.OracleDriver
This gives error java.sql.SQLException: ORA-01017: invalid username/password; logon denied
i'm 100% sure username/password correct. Also db has SEC_CASE_SENSITIVE_LOGON=FALSE. I checked with both uppercase and lowercase username/password and still get error. Simple java app with same driver connect to db fine.
What would cause this ? What direction should i investigate. Is this could related to https://community.oracle.com/thread/2188514. My JDK is 14.0.1.
If you are 100% sure the password is right, perhaps you are affected by the problem in the JIT
Connection To Database From Oracle JVM Using Server Side Jdbc Thin Driver Throws Ora-01017
When the Java code is deployed to a pre-11g database the server-side JDBC/thin connection works fine.
After the Java code is deployed to a 11.2 database the server-side JDBC/thin connection fails with ORA-01017: invalid username/password; logon denied.
You can try this workaround
alter system set java_jit_enabled=FALSE;

Connect To SQL Server With Windows Authentication From A Linux Machine Through JDBC

I want to be able to connect to a SQL Server using jdbc and windows authentication.
I saw some answers on the internet saying i should add the following property to the connection string:
integratedSecurity=true;
And also add
sqljdbc_auth.dll
To the java path.
But this, as far as i understand applies only when i'm connecting from a Windows machine.
When i try this on a Linux machine i get:
java.sql.SQLException: This driver is not configured for integrated authentication
My question is how do I do it from a Linux machine.
Thanks
Well, eventually I answer my own question:
This is not possible to use Windows authentication from a linux machine using the Microsoft JDBC driver.
This is possible using the jTDS JDBC driver using the following connection string:
jdbc:jtds:sqlserver://host:port;databaseName=dbname;domain=domainName;useNTLMv2=true;
Thank you all for all the comments
TL;DR
It is not possible to use native Windows Authentication for JDBC connections to MSSQL from a JVM running on Linux.
This MSDN article explains the authentiation methods with JDBC on Linux, potential errors, and available options:
https://blogs.msdn.microsoft.com/psssql/2015/01/09/jdbc-this-driver-is-not-configured-for-integrated-authentication/
...in the JDBC 4.0 driver, you can use the authenticationScheme
connection property to indicate how you want to use Kerberos to
connect to SQL. There are two settings here.
NativeAuthentication (default) – This uses the sqljdbc_auth.dll and is specific to the Windows platform. This was the only option
prior to the JDBC 4.0 driver.
JavaKerberos – Makes use of the Java API’s to invoke kerberos and does not rely on the Windows Platform. This is java specific and not
bound to the underlying operating system, so this can be used on both
Windows and Linux platforms.
...
The following document outlines how to use Kerberos with the JDBC
Driver and walks through what is needed to get JavaKerberos working
properly.
Using Kerberos Integrated Authentication to Connect to SQL Server
http://msdn.microsoft.com/en-us/library/gg558122%28v=sql.110%29.aspx
For those who are using DBeaver the way to connect to the SQL Server Database is:
In order to connect to the SQL Server from Linux Debian using DBeaver
1.- Select SQL Server jTDS driver
2.- Enter the connection information
3.- Go to Driver Properties tab and add the domain, user, password
Just as a note, in some post I found that they needed to change the property USENTLMV2 to TRUE but it worked for me either by putting the USERTLNMV2 in true or false.
A problem that I found was that when I was trying to connect to the database using my user and password the next error was thrown:
Login failed. The login is from an untrusted domain and cannot be used with Windows authentication.
This error was thrown because of my user was about to expire. I tried with another AD user and it could connect.
I know this is kind of an older topic but in case Google sends people here:
There are two main JDBC drivers for SQL Server. One is from Microsoft and the other from jTDS. jTDS can, amazingly, connect using Windows auth (NTLM) from other platforms, including Linux, as described here: http://jtds.sourceforge.net/faq.html#windowsAuth. It can, of course, also use SQL-authenticated logins. SQL-authenticated logins are no harder to use from any OS than any other, so don't forget about those an option.
The version provided by Microsoft is the one from which #mjn provided a quote from the documentation. It is able to connect using Windows authentication by specifying integratedSecurity=true, authenticationScheme=javaKerberos, and authentication=NotSpecified.
It is tricky to get this working even if you don't go out of your way to find more confusion, so always keep in mind which driver you are using - and tell us in these posts so that you can get more specific help.
This JDBC URL is validated to work with latest Microsoft SQL Server JDBC driver:
jdbc:sqlserver://[server]:[port];database=[db\;trustServerCertificate=true;integratedSecurity=true;user=[user without domain];password=[pw];authenticationScheme=NTLM;domain=[domain];authentication=NotSpecified
Example:
jdbc:sqlserver://mysql.myorg.com:1433;database=mydb;trustServerCertificate=true;integratedSecurity=true;user=myuser;password=mypwd;authenticationScheme=NTLM;domain=ad.myorg.com;authentication=NotSpecified
I was able to connect to a SQL Server 2016 Data Mart and JDBC connection Microsoft JDBC Driver using Windows Authentication using the following script on a Ubuntu Linux Docker Image running on Windows 10.
# initializes spark session
from pyspark.sql import SparkSession
spark = SparkSession\
.builder\
.master('local[*]')\
.appName('FDM')\
.config("spark.driver.extraClassPath","pyspark_jars/*")\
.config('spark.executor.memory', '4g')\
.config('spark.driver.memory', '16g')\
.config('spark.executor.cores', '4')\
.getOrCreate()
jdbc_url = '''jdbc:sqlserver://SERVER;databaseName=DBNAME;trustServerCertificate=true;integratedSecurity=true;user=USERID;password=PASSWORD;authenticationScheme=NTLM;domain=US;authentication=NotSpecified'''
spark_df = spark.read\
.format("jdbc")\
.option("url", jdbc_url)\
.option("driver","com.microsoft.sqlserver.jdbc.SQLServerDriver")\
.option("query", 'select top(1000) * from SCHEMA.TABLE')\
.option("fetchsize", 100000)\
.load()
spark_df.write.csv('TEST.csv', mode = "overwrite", header=True)

GlassFish Server does not connect to SQL database (error w.r.t. SQL driver)

I am using a brand new developing pc and need to test a personal application that runs on a local GlassFish server 3.1.2 and should connect with a local SQL database called 'funkOneDB' (my IDE is NetBeans 7.2.1). But I can't get the GlassFish server to connect with the database, and the problem seems to be related to the (place of the) SQL driver in the GlassFish Server's directories (more problem specifics in a few lines).
I am fairly certain I correctly set up the related JDBC Resource and Connection Pool on the GlassFish Server (as I mimic a set-up already existing and working properly on another developing pc).
The Resource specifics are:
jndi name: jdbc/FunkResource
pool name: FunkPool
The (most important) Pool specifics are:
pool name: FunkPool
resource type: javax.sql.Datasource
datasource classname: com.mysql.jdbc.jdbc2.optional.MysqlDataSource
additional properties correspond to the specifics in the XML GlassFish-resources of the application (username, password, url, etc.; no problems there)
I first placed the necessary SQL driver in the GlassFish Server's directories, i.e. the file mysql-connector-java-5.1.18-bin.jar at ..\GlassFish3\GlassFish\domains\domain1\lib\ext.
Yet, when I perform a ping test from the JDBC Pool 'FunkPool' at the GlassFish server, I get the following error:
Ping Connection Pool failed for FunkPool. WEB9031: WebappClassLoader unable to load resource [com.mysql.jdbc.SQLError], because it has not yet been started, or was already stopped Please check the server.log for more details.
In the server.log I only find the following extra logging exception and failure info:
(i) Exception while creating an unpooled [test] connection for pool [ FunkPool ], WEB9031: WebappClassLoader unable to load resource [com.mysql.jdbc.SQLError], because it has not yet been started, or was already stopped
(ii) RestResponse.getResponse() gives FAILURE. endpoint = 'http://localhost:4848/management/domain/resources/ping-connection-pool.json'; attrs = '{id=FunkPool}'
Note however, that when I ping the database funkOneDB from my IDE NetBeans via jdbc:mysql://localhost:33066/funkOneDB, it's succesful. As already mentioned, the credentials and other data I use for this IDE-based ping are the same data I use in the JDBC Connection Pool.
I searched for the problem also on stackoverflow for some. And I did find some people talking about it, like
Glassfisch MySQL ping ERROR (no answer by anybody), or
Struggling to create MySQL Connection Pool on Glassfish (tried that solution, i.e. putting the SQL driver one level up in ..\GlassFish3\GlassFish\domains\domain1\lib\, but this creates other errors, even after restarting the Glassfish server), or
GlassFish not loading connector
(even tried this solution, no succes).
Can somebody help me solve this problem? Many thanks in advance!
With kind regards,
Heinz
Place the mysql driver in the lib folder of your project. Then do a clean-and-build. It's also helpful to have netbeans communicate directly with your database. This will allow you to view the database structure and the contents of your database right from your IDE. For help integrating MySQL with netbeans, look here: netbeans.org/kb/docs/ide/mysql.html
My friend, i had this same exception:
RestResponse.getResponse() gives FAILURE. endpoint = 'http://localhost:4848/management/domain/resources/ping-connection-pool.json'; attrs = '{id=FunkPool}'
The cause of my error was that, i put wrong credentials. Check your credentials in your client DB App (SQL Developer, for example).
I had the same problem with SQL server and Netbeans. To resolve it, i put the sqljdbc.jar in the java direcory "Java\jdk1.8.0_121\lib directory" and it works :)
I've just spebnt 10 hours on this bug.

Error connection to herokupostgresql locally

I am writing a struts2 app and using hibernate for persistence. I deploy may app on heroku and everything works ok, but when ever I run it locally I get:
org.postgresql.util.PSQLException: FATAL:no pg_hba.conf entry for host "xx.xx.xxx.xxx", user "someuser", database "somedatabase", SSL off
I know the problem is I need to connect to the database over ssl but how can I set this up locally?
Add this to the end of your JDBC connection URL:
?ssl=true&sslfactory=org.postgresql.ssl.NonValidatingFactory
The key here is "SSL off".
You must use SSL to connect to Heroku. How to enable it depends on the client you are using, which I'm guessing is PgJDBC since you're using Java and Hibernate.
The SSL section of the manual for PgJDBC covers what you need.

Categories