Error Connecting Server Port 1527 Message Connection Refused
Contents |
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies
Error Connecting To Server Localhost On Port 1527 With Message Connection Refused Connect
of this site About Us Learn more about Stack Overflow the company glassfish error connecting to server localhost on port 1527 with message connection refused connect Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges
Access Denied ("java.net.socketpermission" "localhost:1527"
Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a error connecting to server localhost on port 1527 with message connection timed out minute: Sign up data sources derby - connection refused up vote 6 down vote favorite 4 I am trying to connect a database with a java project. After reading some tutorials and the course support, I have understood that I need to make a new data source under the Admin Console. So, I've logged in into the admin console, then navigated to how to start derby server Resources -> JDBC -> Data Sources -> New; filled in the fields and when I am testing the connection, the error I get is this one: Messages The test connection operation failed for data source MyDB on server server1 at node RO2CVG6CNode01 with the following exception: java.sql.SQLNonTransientException: java.net.ConnectException : Error connecting to server localhost on port 1527 with message Connection refused: connect.DSRA0010E: SQL State = 08001, Error Code = 40,000. View JVM logs for further details. I don't know where the problem is. Maybe with the Database name: jdbc:derby:D:\MyDB ? Can anyone help me please? I've also tried to use only MyDB, after this tutorial. But still it doesn't work. database websphere datasource derby share|improve this question edited May 3 '12 at 6:52 oers 13.2k94763 asked May 2 '12 at 20:09 Steffi 2622722 1 Error connecting to server localhost on port 1527 --> this error says that there is no Database running on port 1527. –oers May 3 '12 at 6:52 make sure, that the server is running: myeclipseide.com/documentation/quickstarts/blueedition/… –oers May 3 '12 at 7:37 This link will b
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn
How To Start Derby Database
more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags error 08001 java net connectexception Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like
Java Sql Sqlnontransientconnectionexception Java Net Connectexception
you, helping each other. Join them; it only takes a minute: Sign up java.sql.sqlnontransientconnectionexception: java.net.connectException : error connecting to server localhost on port up vote 0 down vote favorite I've being working on a java project using Derbyclient http://stackoverflow.com/questions/10420902/data-sources-derby-connection-refused (database locally hosted). I'm done with everything except that when I'm trying the desktop app while I'm not manually connected to the database (from Netbeans), the error in the title pops up and I can't seem to solve it. Thank you for taking the time to read this and help me. java jdbc netbeans client derby share|improve this question asked Aug 14 '15 at 20:39 Achraff-Nour MESKI 42 Can you paste the full error http://stackoverflow.com/questions/32018331/java-sql-sqlnontransientconnectionexception-java-net-connectexception-error-c with stack trace at the end of your question instead of just the start in the title? There should be code that says DriverManager.getConnection(...). Can you also paste that code? –WillShackleford Aug 14 '15 at 21:15 Here it is: i60.tinypic.com/33ufvrt.png –Achraff-Nour MESKI Aug 14 '15 at 21:47 I've used this url "jdbc:derby://localhost:1527/Suppliers;create=true" with username and password "root". Everything works fine when netbeans is open and the conenction with the db is made. –Achraff-Nour MESKI Aug 14 '15 at 21:50 Please fix your title to agree with the actual exception, not a mangled version of it. –EJP Aug 15 '15 at 0:00 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote Derby can be run in two modes embedded or server-based. Server-based allows multiple programs to access the same database. Embedded allows your application to run without a server. Your url selects server-based. The connection refused error indicates that the server is not running. Since the server was started within Netbeans it is shutdown when Netbeans is not running. The options are: Switch to embedded. Start the server with a command outside Netbeans. Just keep Netbeans running. To switch to embedded see Apache's documentation for deployment options: Eliminate the "//localhost:1527" from the url. also see the tutorial "Run SQL using the embedded driver" at https://builds.apache.org/job/Derby-doc
This Site Careers Other all forums Forum: JDBC and Relational Databases Connection to Derby failed Ngai Chee Weng Greenhorn Posts: 10 posted 6 years ago I'm following this tutorial. https://coderanch.com/t/507746/JDBC/databases/Connection-Derby-failed At step 3 d, when I click "Test Connection", I got an http://www.homeandlearn.co.uk/java/connect_to_a_database_using_java_code.html error message as attached. Can someone provide me some clue of this error message? untitled.JPG Personal HomePage - www.findingsteve.net Jan Cumps Bartender Posts: 2602 13 I like... posted 6 years ago Welcome to JavaRanch, Ngai Chee Weng. OCUP UML fundamental and ITIL foundation mahesh shinde Ranch Hand error connecting Posts: 69 I like... posted 6 years ago test connection step is 4-> J not 3d Ngai please confirm it and study tutorial carefully mahesh shinde Ranch Hand Posts: 69 I like... posted 6 years ago Befor testing connection make sure derby is running If you want to check derby is running perform all steps of B(title is Create your first message connection refused JPA POJO) .2 Ngai Chee Weng Greenhorn Posts: 10 posted 6 years ago @Jan Cumps: thanks for the welcome. @mahesh shinde: actually, it is Step 3 d but it is in section B...thanks for pointing that out because i miss the section A...i will try it out tomorrow. Personal HomePage - www.findingsteve.net Ngai Chee Weng Greenhorn Posts: 10 posted 6 years ago Ya, I think I miss out some step at section A, step 4. After I follow all the steps, when I click "Test Connection", I got this error message, Messages The test connection operation failed for data source Order DS on server server1 at node xxxx with the following exception: java.lang.IllegalArgumentException: undefined variable: DERBY_JDBC_DRIVER_PATH. View JVM logs for further details. Anyone can explain this error message? Personal HomePage - www.findingsteve.net Rene Larsen Ranch Hand Posts: 1179 I like... posted 6 years ago Ngai Chee Weng wrote:Ya, I think I miss out some step at section A, step 4. After I follow all the steps, when I click "Test Connection", I got this error message, Messages The t
Databases: 1 2 3 4 5 6 In a later section, you'll create a Java form that loads information from a database. The form will have Next and Previous to scroll through the data. Individual records will then be displayed in text fields. We'll also add button to Update a record, Delete a record, and create a new record in the database. To get started, and for simplicity's sake, we'll use a terminal/console window to output the results from a database. So start a new project for this by clicking File > New Project from the NetBeans menu. Create a Java Application. Call the project database_console, and the Main class DBConnect: When you click Finish, your code should look like this: Connecting to the Database To connect to a database you need a Connection object. The Connection object uses a DriverManager. The DriverManager passes in your database username, your password, and the location of the database. Add these three import statements to the top of your code: import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; To set up a connection to a database, the code is this: Connection con = DriverManager.getConnection( host, username, password ); So the DriverManager has a method called getConnection. This needs a host name (which is the location of your database), a username, and a password. If a connection is successful, a Connection object is created, which we've called con. You can get the host address by looking at the Services tab on the left of NetBeans: The address of the highlighted database above is: jdbc:derby://localhost:1527/Employees The first part, jdbc:derby://localhost, is the database type and server that you're using. The 1527 is the port number. The database is Employees. This can all go in a String variable: String host = "jdbc:derby://localhost:1527/Employees"; Two more strings can be added for the username and password: String uName = "Your_Username_Here"; String uPass= " Your_Password_Here "; Add these three string before the connection object and your code would look like this: As you can see in the image above, there is a wavy underline for the Connection code. The reason for this is because we haven't trapped a specific error that will be thrown up when connecting to a database - the SQLException error. It's the DriverManager that attempts to connect to the database. If it fails (incorrect host address, for example) then it will hand you back a SQLException error. You need to write code to deal with this potentia