I am new to Java and am trying to become familiar with java derby database creation. As my first attempt I am trying to make a simple program that pulls some info from the database and spits it out. I feel like I am so close, but am getting this rejection:
SQL Error: java.sql.SQLNonTransientConnectionException: Connection authentication failure occurred. Reason: Userid or password invalid.
I made the sample derby database and it includes this code.
`Connection conn = DriverManager.getConnection(
data, "app", "APP");
Statement st = conn.createStatement()) {`
I got the "app" and "APP" username and password from the book I read called "Sam's Teach Yourself Java in 21 Days".
Any help will be greatly appreciated and will allow me to work on a lot of interesting new projects I have planned! Thanks for your time.
Please change the password from "APP" to "app" and give it a try.
https://netbeans.org/bugzilla/show_bug.cgi?id=243829
Related
I keep getting the error:
"jdbc.SQLServerException: Login failed for user"
in my Java program using IntelliJ.
This is part of my code:
String connectionUrl = "jdbc:sqlserver://localhost;databaseName=CityJailOriginal;user=student;password=test";
try
{
Connection con = DriverManager.getConnection(connectionUrl);
Statement stmt = con.createStatement();
}
SQL server is configured, according to the research I have done, correctly. I have created the user student and is related to a login devClass that contains password test. I have tried placing devClass instead of test in the password area, but I keep getting the same error. I have tried what has been suggested in other posts, but it is not working for me.
Any help would be tremendously appreciated!! =)
I have been trying to connect to this Oracle database with JDBC thin driver with the following syntax:
var URL = "jdbc:oracle:thin:#//16.161.286.56:1522/Service_Name";
var USER = "user";
var PASS = "password";
var conn = Jdbc.getConnection(URL, USER, PASS);
I keep on having the same response when I execute this:
We're sorry, a server error occurred. Please wait a bit and try again. [87a99af]
Would anyone have an idea of what I am doing wrong ?
Also, when I change the IP address to its 'string version':
var URL = "jdbc:oracle:thin:#//mydomain.com:1522/Service_Name";
Then I get the error response:
Failed to establish a database connection. Check connection string, username and password.
Which does not make sense to me as both expressions are supposed to be equivalent ...
The actual format of Oracle JDBC connection using service name is:
#//host_name:port_number/service_name
Make sure that is service name is ok.
You can try with TNSNameListener
jdbc:oracle:thin:#(description=(address=(host=<HOSTADDRESS>)(protocol=tcp)(port=<PORT>))(connect_data=(service_name=<SERVICENAME>)(server=<SHARED>)))
The TNSNameListener file location:
<ORACLE_HOME>\network\admin\tnsnames.ora
example: /home/oracle/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora
I am not sure which class is that Jdbc is. Take a look at the JDBCUrlSample.java and DataSourceSample.java
jdbc:google:mysql://[your-project-id]:[your-instance-name]/[your-database-name]
↑
This is the URL that Google Documents suggest for connecting to your database (taken from here https://developers.google.com/eclipse/docs/cloudsql-createapp).
I know my project ID, and I know it is correct. Same with the database name. But I'm not sure which is the [your-instance-name] parameter.
String url = "jdbc:google:mysql://elliptical-trend-259112:default/testdb";
conn = (Connection) DriverManager.getConnection(url, "root", "*****");
This is what I've tried until now.
Where can I get the instance name?
Thanks in advance!
Go to: The cloud SQL instances page you should be able to find it there.
I am trying to connect to one of my MySql Databases through a System DSN I set up. The DSN is set up correctly with my SSL certs, username, password, port, and the databases populate the DSN database drop down and the "Test" connection passes. I can't seem to get a connection in Java. I have spent 2 days looking through some examples on Stack but they all refer to an Access database and using JDBC-ODBC bridge which is no longer available in Java 8. I tried using UCanAccess with Jackcess but I have gotten no where. The code below is what I have been tinkering with the last few hours. I normally connect to MySql databases with PHP and receive result in JSON or directly with JDBC driver but for this project neither are really an option. Any ideas. I appreciate the help.
//String username = "<username>";
//String password = "<password>";
//String database = "<database_name>";
try {
Class.forName("net.ucanaccess.jdbc.UcanaccessDriver");
//Connect to cllients MySql Database
Connection conn = DriverManager.getConnection("jdbc:ucanaccess:" + database);
//Call VerifyLabel(<MAC>,<MODEL>); Call provided client
CallableStatement cStmt = conn.prepareCall("{CALL verify(?, ?)}");
//MAC
cStmt.setString(1, "mac address");
//model
cStmt.setString(2, "model");
cStmt.execute();
//Getting results from "Status" column
ResultSet rs1 = cStmt.getResultSet();
//Iterate results and print.
while (rs1.next()) {
System.out.println(rs1.getString("Status"));
}
//Close connection conn
rs1.close();
} catch (SQLException ex) {
Logger.getLogger(CambiumStoredTest.class.getName()).log(Level.SEVERE, null, ex);
} catch (ClassNotFoundException ex) {
Logger.getLogger(CambiumStoredTest.class.getName()).log(Level.SEVERE, null, ex);
}
Using MySql Driver:
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql:"+ database);
also tried:
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/"+ database);
Error for MySql Driver:
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
1) DSN is most commonly assocatiated with ODBC (and often with MS-Access). Hence all the links. ODBC is NOT required for a DSN.
2) Do NOT use Ucanaccess. Use J/Connector for mySQL.
3) Make sure you can communicate with mySQL from the command line. Then focus on getting a small "hello world" JDBC app to connect. Your second and third examples look OK. Be sure to check the mySQL logs for any warnings/errors.
Well, after an entire day of trying to get this to work and sleeping on it for a couple hours I finally got it to work. UCanAccess and mysql-connector did not work. The easiest thing since no other method of connecting to this clients database was acceptable was to push this application in Java 7 rather than 8. This allowed me to Coo=nnect to my DSN with no problems. I understand that this method is not the best solution but it is what is working flawlessly and efficiently. Also, instead of using some rigged up 3rd party libs and jars, I am able to use Connector/J. Thanks everyone for trying to help me. Just incase anyone else runs into this issue, this is how I made it work.
Develope app in Java 7 - not 8.
Set Up System DSN
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
//You do not need to provide username or password if it is setup in DSN
Connection conn = DriverManager.getConnection("jdbc:odbc:"+ database);
I have been trying to connect to Teradata
Class.forName("com.teradata.jdbc.TeraDriver");
String connectionString = "jdbc:teradata://xxx.xxxxxx.com/database=xxxxxx, tmode=ANSI, charset=UTF8";
String user = "Rocket512";
String password = "aui8mn5";
Connection conn = DriverManager.getConnection(connectionString, user, password);
Got the following
Exception in thread "main" com.teradata.jdbc.jdbc_4.util.JDBCException: [Teradata Database]
[TeraJDBC 14.10.00.17] [Error 8017] [SQLState 28000] The UserId, Password or Account is invalid.
at com.teradata.jdbc.jdbc_4.util.ErrorFactory.makeDatabaseSQLException(ErrorFactory.java:300)
at com.teradata.jdbc.jdbc.GenericLogonController.run(GenericLogonController.java:666)
at com.teradata.jdbc.jdbc_4.TDSession.<init>(TDSession.java:216)
I know that the host is specified correctly since i did not get UnknownHost Exception.
Also I have double checked my userid and password are correct.
I ran query suggested by #beni23 (thank you)
select *
from dbc.logonoff
where logdate >= date '2013-10-31'
Here is the result that I got
What is Bad Password? I used SQL Assistant with this very password and it works great. Why cannot i connect with Java?
LDAP Authentication failures will not be captured in DBC.LogOnOff as a Bad Password event because the authentication doesn't take place on the database.
Typically the error message you are receiving, The UserId, Password or Account is invalid., is indicative of the user account being locked on the database.
SELECT U.UserName
, U.ProfileName
, U.DefaultAccount
, COALESCE(P.MAXLOGONATTEMPTS, S.MAXLOGONATTEMPTS) AS MaxLogonAttempts_
, U.LockedCount
, U.LockedDate
FROM dbc.UsersV U
LEFT JOIN
dbc.ProfileInfoV P
ON P.ProfileName = U.ProfileName
CROSS JOIN
dbc.SecurityDefaults S
WHERE UserName = 'Rocket512';
If LockedCount is not 0 than a failed logon attempt has occurred since the last successful logon to the database.
If LockedDate is not NULL it represents the date which the account was last locked.
MaxLogonAttempts_ will tell you how many times you can attempt to logon using database authentication (TD2) before the account is locked.
A couple of things I would suggest:
Remove whitespace between the parameters of connectString
Put the User and Password parameters in the connectString
Using original code above modify the connectString to add: ,ACCOUNT=$AMRWRW&DrT&r which should match what is returned by the query in my response above (I have added DefaultAccount).
EDIT: 11/12/13
May I suggest you download Teradata Studio Express and attempt to make a connection to the same Teradata system using JDBC much like you are here in your code. This may help shed light on the parameters you need to specify in your connection string in order to make the connection successful. You should be able to setup your connection parameters in Teradata Studio Express the same as you have here in your code and see if it works.
Using LDAP as the logon mechanism for a user that has not been granted the explicit right to logon with a NULL password has resulted in the error message `The UserId, Password or Account is invalid.'. I received this the other day using a privileged account without changing my logon mechanism from LDAP to TD2.
What does the following SQL return?
SELECT *
FROM DBC.LogonRulesV
WHERE UserName = 'Rocket512';
It may not return anything, which is okay. This simply means you ability to logon with that userid from any host on the system has not been explicitly granted or revoked.
EDIT: 05/22/18
The “Bad Password” event for an externally authenticated user may will appear in the event log when the provided password and the what is stored on the directory server do not match. In certain scenarios you can verify this by using ldapsearch from the PDN to submit an inquiry directly to the LDAP directory. You can find more details about using this command in the Security Administration manual. I’ve discovered this trying to triage a problem with a subset of user accounts that fail to authenticate to the directory. I felt it would be appropriate to update this answer with more details as my lead in statement at the top is not 100% accurate.
The following might not give you a solution, but might point you in the right direction. I think you'll want to check the dbc.logonoff table in teradata through a console to make sure that your user is not locked or get an idea whether your driver is hitting teradata.
select *
from dbc.logonoff
where logdate >= date '2013-10-31'
Reading this article Troubleshooting Security: The UserId, Password or Account is invalid. we can see the typical reason of this error.
Cause: LOGMECH=LDAP is specified, and the username/password credentials
are redundantly provided in the both LOGDATA and as separate
connection parameters.
Solution: Identify LDAP users via LOGDATA, or
via separate username/password parameters, but not both
simultaneously.
So, you should check this case. May be you can get connection without user/password
Perhaps you might have more luck with:
String driver = "com.teradata.jdbc.TeraDriver";
String conUrl="jdbc:teradata://xxx.xxxxxx.com/database=xxxxxx,USER=Rocket512,PASSWORD=aui8mn5,tmode=ANSI,charset=UTF8";
Class.forName(driver);
Connection dbConn = DriverManager.getConnection(conUrl);
If that doesn't work make sure to use the latest jdbc driver.
I had similar error and followed all the suggestions given in here. My account was not locked and I was able to connect to the DB with the same username and password, via SQL assistance editor.
The solution worked for me was adding following line in the connection string: LOGMECH=LDAP.
You need to know the logon mechanism for your Teradata, or you can reach out to your DBA team, as I did. So your connection string will look something like this:
String connurl="jdbc:teradata://xx/database=xx,USER=xx,PASSWORD=xx,tmode=ANSI,charset=UTF8,LOGMECH=LDAP";