Error In Class.forname Com.mysql.jdbc.driver
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 more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges 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 minute: Sign up Class.forName(“com.mysql.jdbc.Driver”).newInstance() up vote 2 down vote favorite 1 I am having this error on Netbeans 7.2, it says that ClassNotFoundexception and InstantationException. I am really stuck on this matter. Kindly help me. protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { String driver = "com.mysql.jdbc.Driver"; con = null; String username = ""; String password = ""; Class.forName("com.mysql.jdbc.Driver").newInstance(); con = DriverManager.getConnection("jdbc:mysql://localhost:3306/dbName", "root", "password"); Statement st = con.createStatement(); ResultSet mar = st.executeQuery("SELECT * FROM table"); Gson gson = new GsonBuilder().create(); response.setContentType("application/json"); response.setCharacterEncoding("utf-8"); } catch (SQLException e) { String message = e.getMessage(); } java mysql servlets jdbc share|improve this question edited Oct 16 '13 at 19:33 Sotirios Delimanolis 154k25247361 asked Oct 16 '13 at 19:32 Lego_blocks 821213 5 First, you don't need the .newInstance() call. Second, have you added the mysql-connector.jar to your WEB-INF/lib so that it is added to the classpath? –Sotirios Delimanolis Oct 16 '13 at 19:32 why .newInstance() ???? –Hussain Akhtar Wahid 'Ghouri' Oct 16 '13 at 19
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 more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, http://stackoverflow.com/questions/19412135/class-fornamecom-mysql-jdbc-driver-newinstance just like you, helping each other. Join them; it only takes a minute: Sign up Why does calling Class.forName(“com.mysql.jdbc.Driver”) register the MySQL for JDBC? [duplicate] up vote 3 down vote favorite 1 This question already has an answer here: JDBC Class.forName vs DriverManager.registerDriver 3 answers As explained in What is the difference between "Class.forName()" and http://stackoverflow.com/questions/32922459/why-does-calling-class-fornamecom-mysql-jdbc-driver-register-the-mysql-for-j "Class.forName().newInstance()"?, the method Class.forName() does the following: Calling Class.forName(String) returns the Class object associated with the class or interface with the given string name But, if it only does that, why is it then neccesary to call this method in order to use MySQL with Java? Without it I get the following error: java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/calender at java.sql.DriverManager.getConnection(DriverManager.java:689) at java.sql.DriverManager.getConnection(DriverManager.java:247) at Database.main(Database.java:25) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140) java mysql jdbc share|improve this question asked Oct 3 '15 at 12:17 nlykkei 5651612 marked as duplicate by wero, Mark Rotteveeljava Users with the java badge can single-handedly close java questions as duplicates and reopen them as needed. Oct 4 '15 at 9:54 This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question. 2 You must be using an old driver, because all newer JDBC drivers will auto-register without having to call
Connectors More MySQL.com Downloads Developer Zone Section Menu: Documentation Home MySQL Connector/J 5.1 Developer Guide Preface and Legal Notices Overview of MySQL Connector/J Connector/J Versions Connector/J Release Notes https://dev.mysql.com/doc/connector-j/5.1/en/connector-j-usagenotes-connect-drivermanager.html and Change History Java Versions Supported Connector/J Installation Installing Connector/J from a Binary Distribution Installing the Driver and Configuring the CLASSPATH Upgrading from an Older Version Upgrading to MySQL Connector/J https://ubuntuforums.org/showthread.php?t=1492456 5.1.x JDBC-Specific Issues When Upgrading to MySQL Server 4.1 or Newer Upgrading from MySQL Connector/J 3.0 to 3.1 Installing from Source Testing Connector/J Connector/J Examples Connector/J (JDBC) Reference Driver/Datasource error in Class Names, URL Syntax and Configuration Properties for Connector/J Properties Files for the useConfigs Option JDBC API Implementation Notes Java, JDBC and MySQL Types Using Character Sets and Unicode Connecting Securely Using SSL Connecting Using PAM Authentication Using Master/Slave Replication with ReplicationConnection Mapping MySQL Error Numbers to JDBC SQLState Codes JDBC Concepts Connecting to MySQL Using the JDBC DriverManager Interface error in class.forname Using JDBC Statement Objects to Execute SQL Using JDBC CallableStatements to Execute Stored Procedures Retrieving AUTO_INCREMENT Column Values through JDBC Connection Pooling with Connector/J Multi-Host Connections Configuring Server Failover Configuring Load Balancing with Connector/J Configuring Master/Slave Replication with Connector/J Advanced Load-balancing and Failover Configuration Using the Connector/J Interceptor Classes Using Connector/J with Tomcat Using Connector/J with JBoss Using Connector/J with Spring Using JdbcTemplate Transactional JDBC Access Connection Pooling with Spring Using Connector/J with GlassFish A Simple JSP Application with GlassFish, Connector/J and MySQL A Simple Servlet with GlassFish, Connector/J and MySQL Using Connector/J with MySQL Fabric Troubleshooting Connector/J Applications Known Issues and Limitations Connector/J Support Connector/J Community Support How to Report Connector/J Bugs or Problems Index Related Documentation MySQL Connector/J 5.1 Release Notes Download this Manual PDF (US Ltr) - 478.5Kb PDF (A4) - 478.6Kb EPUB - 146.0Kb HTML Download (TGZ) - 119.5Kb HTML Download (Zip) - 146.0Kb version 5.1 6.0 MySQL Connector/J 5.1 Developer Guide / JDBC Concepts / Connecting to MySQL Using the JDBC DriverManager Interface 6.1 Connecting to MySQL Using the JDBC DriverManager I
Get Kubuntu Get Xubuntu Get Lubuntu Get UbuntuStudio Get Mythbuntu Get Edubuntu Get Ubuntu-GNOME Get UbuntuKylin Ubuntu Code of Conduct Ubuntu Wiki Community Wiki Other Support Launchpad Answers Ubuntu IRC Support AskUbuntu Official Documentation User Documentation Social Media Facebook Twitter Useful Links Distrowatch Bugs: Ubuntu PPAs: Ubuntu Web Upd8: Ubuntu OMG! Ubuntu Ubuntu Insights Planet Ubuntu Activity Page Please read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Specialised Support Development & Programming Programming Talk Problem with Java jar files com.mysql.jdbc.Driver Having an Issue With Posting ? Do you want to help us debug the posting issues ? < is the place to report it, thanks ! Page 1 of 2 12 Last Jump to page: Results 1 to 10 of 12 Thread: Problem with Java jar files com.mysql.jdbc.Driver Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode May 25th, 2010 #1 peterv6 View Profile View Forum Posts Private Message Just Give Me the Beans! Join Date Sep 2007 Location Leominster, Massachusetts Beans 61 DistroKubuntu 10.04 Lucid Lynx Problem with Java jar files com.mysql.jdbc.Driver I'm running Kubuntu 10.04, and have java 1.6 installed. I can compile and run "hello world" types of programs, but when I attempt to compile a program using jdbc, I keep getting this error: Code: Mon May 24 18:28:55 EDT 2010 ~/java -> peterv@MBP17K10<2200>$: javac db_select_test.java db_select_test.java:19: cannot find symbol symbol : class Statement location: class db_select_test Statement s = conn.createStatement (); ^ db_select_test.java:21: cannot find symbol symbol : class ResultSet location: class db_select_test ResultSet rs = s.getResultSet (); ^ 2 errors The source code is (problem is