getconnection error Yorktown Virginia

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getconnection error Yorktown, Virginia

De kio “saluton” estas la rekta objekto? CrystalCode commented Apr 28, 2013 Hi! I have determined that the NULL connection is coming from there, but I have no clue what goes on under the hood of getConnection. Personal Open source Business Explore Sign up Sign in Pricing Blog Support Search GitHub This repository Watch 423 Star 7,820 Fork 1,259 mysqljs/mysql Code Issues 86 Pull requests 18 Projects

Tom Griffith Ranch Hand Posts: 275 posted 2 years ago Thank you so much for replying and for your help. If a SecurityManager exists and its checkPermission method denies setting the log writer, this method throws a java.lang.SecurityException. Tom Griffith Ranch Hand Posts: 275 posted 2 years ago Dave, thank you. Start by making sure you can connect to MySQL from the machine where you run the Java app.

The getLogWriter and setLogWriter methods should be used instead of the get/setlogStream methods, which are deprecated. static PrintWriter getLogWriter() Retrieves the log writer. asked 4 years ago viewed 1036 times active 4 years ago Visit Chat Linked 2 Stumped SQL Exception for JDBC Related 0Wordpress - Error establishing a database connection1SQL Syntax error when How exactly does the typical shell "fork bomb" calls itself twice?

Join them; it only takes a minute: Sign up DriverManager.getConnection returns null [duplicate] up vote -1 down vote favorite This question already has an answer here: Connect Java to a MySQL Normally this will be done with the tool PolicyTool, which can be used to grant permission java.sql.SQLPermission "setLog". NOTE: The DataSource interface, new in the JDBC 2.0 API, provides another way to connect to a data source. current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list.

args[3] : DEFAULT_PASSWORD); Connection connection = null; try { connection = createConnection(driver, url, username, password); DatabaseMetaData meta = connection.getMetaData(); System.out.println(meta.getDatabaseProductName()); System.out.println(meta.getDatabaseProductVersion()); String sqlQuery = "SELECT PERSON_ID, FIRST_NAME, LAST_NAME FROM PERSON ORDER I've been doing lots of research on this, but have hit a wall and don't know where to go from here. There must be a way to not have to do that since they have the option to add to the agent "project" but at least this vague error has 86'd itself IQ Puzzle with no pattern If Dumbledore is the most powerful wizard (allegedly), why would he work at a glorified boarding school?

People could just use or potentially another pool that depended on a native module like for reference counting (but we can't in the main library, because typically no Windows Why (in universe) are blade runners called blade runners? The DriverManager attempts to select an appropriate driver from the set of registered JDBC drivers. What version are you using? — Reply to this email directly or view it on GitHub<#405 (comment)> .

Terms Privacy Security Status Help You can't perform that action at this time. of the atom whose 1s electron moves nearly at the speed of light? Would using or adding some additional debug flag that printing when a connection was acquired and when a connection was released work (so you can try to guess it from the Any direction as to where I can go from here would be much appreciated.

Half of issues here are not related to core driver and sqlstring or pool related dougwilson commented Mar 28, 2014 I would have liked to have seen some notification as to I'm using mysql-connector-java-5.1.22-bin.jar and had the same problem with 5.1.21. I'm starting to think it's not the drivers though since ojdbc14.jar which I've used for years threw the same thing. If there is some way for me to determine the different reasons why DriverManager.getConnection would return NULL, that would aid me in tracking down this issue significantly. –user1997603 Feb 15 '13

java mysql jdbc share|improve this question edited Sep 25 '14 at 8:00 Mark Rotteveel 36.3k84677 asked Sep 24 '14 at 19:28 CtrlAltDolev 112 marked as duplicate by Mark Rotteveel, Uwe Plonus, What java version are you using? I run 2.0.0-alpha7. How would one know when a connection should have been ended but wasn't?

The problem is, that this line: con = DriverManager.getConnection("jdbc:mysql://localhost:3306/", "root", "password"); gives con a value of null. SQLException reason = null; for(DriverInfo aDriver : registeredDrivers) { // If the caller does not have permission to load the driver then // skip it. asked 3 years ago viewed 10609 times active 2 years ago Visit Chat Related 3JDBC with MySQL really slow, don't know why77What is the MySQL JDBC driver connection string?0Java mySQL remote How should I calculate the determinant?

Verify the connection properties. Does a survey require an ethical approval? What Accelerates a Vehicle With a CVT? Your use of this Teradata website is governed by the Privacy Policy and the Terms of Use, including your rights to materials on this website, the rights you grant to your

Can a GM prohibit a player from referencing spells in the handbook during combat? Parameters:seconds - the login time limit in seconds; zero means there is no limitSee Also:getLoginTimeout() getLoginTimeout public staticintgetLoginTimeout() Gets the maximum time in seconds that a driver can wait when attempting Note: The classname of a driver can be found using d.getClass().getName() Returns: the list of JDBC Drivers loaded by the caller's class loader setLoginTimeout public static void setLoginTimeout(int seconds) Set the deregisterDriver public static void deregisterDriver(Driver driver) throws SQLException Drop a Driver from the DriverManager's list.

A quick peek at the Java 5 Update 22 sources shows an almost identical implementation were it simply cannot return null. static void setLogWriter(PrintWriterout) Sets the logging/tracing PrintWriter object that is used by the DriverManager and all drivers. What would be the atomic no. This is what we did to connect/express in expressjs, which is pretty sweet.

Server Startup Problems Exception in thread "main" java.sql.SQLException: No suitable driver All times are in JavaRanch time: GMT-6 in summer, GMT-7 in winter Contact Us | advertise | mobile view | I'm certainly willing to improve it, but we just can't do reference counting. The DriverManager attempts to select an appropriate driver from the set of registered JDBC drivers. static void registerDriver(Driverdriver) Registers the given driver with the DriverManager.

Parameters: url - a database url of the form jdbc:subprotocol:subname info - a list of arbitrary string tag/value pairs as connection arguments; normally at least a "user" and "password" property should Thanks! K. Connection conn=DriverManager.getConnection("jdbc.jtds.sqlserver://IP.IP.IP.IP:1433/LMDB;TDS=8.0":username":"password") ---------------------------------------------------------------------------- does anybody see what could be wrong?

I've done debugging and tracked it back to this code. Physically locating the server What actually are virtual particles? Existing programs which currently load JDBC drivers using Class.forName() will continue to work without modification. K.

getDriver(String) Attempt to locate a driver that understands the given URL. Parameters:url - a database url of the form jdbc:subprotocol:subname Returns:a connection to the URL Throws: SQLException - if a database access error occurs getDriver public staticDrivergetDriver(Stringurl) throws JavaScript is disabled on your browser. You signed in with another tab or window.

getConnection public static synchronized Connection getConnection(String url) throws SQLException Attempt to establish a connection to the given database URL. Join them; it only takes a minute: Sign up Connector/J getConnection with syntax error but no syntax up vote 1 down vote favorite I'm trying to connect to a mysql database Parameters:message - a log or tracing message Overview Package Class Use Tree Deprecated Index Help Java™PlatformStandardEd.7 Prev Class Next Class Frames No Frames All Classes Summary: Nested| Field| Constr| Method Detail: I used print statements to figure this out as NetBeans doesn't have a problem with this (but when I put in a bad host and run it from NetBeans it doesn't