tag:blogger.com,1999:blog-694855878384792308.post5091418430936817727..comments2024-03-15T23:19:22.318-07:00Comments on Java67: How to Fix java.lang.ClassNotFoundException: com.mysql.jdbc.Driver in Java [Solution]javin paulhttp://www.blogger.com/profile/15028902221295732276noreply@blogger.comBlogger31125tag:blogger.com,1999:blog-694855878384792308.post-65404070572485298282022-06-12T01:54:39.259-07:002022-06-12T01:54:39.259-07:00Can you check if mysql driver JAR file are in your...Can you check if mysql driver JAR file are in your classpath or not?javin paulhttps://www.blogger.com/profile/15028902221295732276noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-1934556266356558622022-06-12T00:24:29.915-07:002022-06-12T00:24:29.915-07:00java.lang.ClassNotFoundException: com.mysql.cj.jdb...java.lang.ClassNotFoundException: com.mysql.cj.jdbc.Driver<br /> at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1412)<br /> at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1220)<br /> at java.base/java.lang.Class.forName0(Native Method)<br /> at java.base/java.lang.Class.forName(Class.java:375)<br /> at com.wipro.util.DButil.getConnection(DButil.java:12)<br /> at com.wipro.Dao.AdminDao.checkAdmin(AdminDao.java:15)<br /> at com.wipro.loginServlet.LoginServlet.doPost(LoginServlet.java:57)<br /> at javax.servlet.http.HttpServlet.service(HttpServlet.java:681)<br /> at javax.servlet.http.HttpServlet.service(HttpServlet.java:764)<br /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)<br /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)<br /> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)<br /> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)<br /> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)<br /> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)<br /> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)<br /> at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)<br /> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)<br /> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)<br /> at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687)<br /> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)<br /> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360)<br /> at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399)<br /> at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)<br /> at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890)<br /> at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743)<br /> at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)<br /> at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)<br /> at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)<br /> at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)<br /> at java.base/java.lang.Thread.run(Thread.java:833)<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-28268660249949294422022-03-17T15:30:20.448-07:002022-03-17T15:30:20.448-07:00Error occurred during initialization of boot layer...Error occurred during initialization of boot layer<br />java.lang.module.ResolutionException: Modules hibernate3 and hibernate.testing export package org.hibernate.testing.cache to module mysql.connector.java<br /><br /><br /><br />böyle bir hata alıyorum nasıl düzelteceğim konusunda yardımcı olabilir misinizevremhttps://www.blogger.com/profile/07801293486493256896noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-28220379209970866232021-04-05T12:57:59.741-07:002021-04-05T12:57:59.741-07:00I am unable to solve this error::java.lang.ClassNo...I am unable to solve this error::java.lang.ClassNotFoundException: com.sql.jdbc.driver<br /> at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1372)<br /> at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1195)<br /> at java.base/java.lang.Class.forName0(Native Method)<br /> at java.base/java.lang.Class.forName(Class.java:377)<br /><br />I have pasted the following jars in the lib of my project:<br />1.jsp-api 2.2.jar<br />2.jstl 1.2.jar<br />3.mysqlconnector-java 8.0.23.jar<br />4.servlet-api-2.5.jar<br />I also tried to conigure buildpath but the add external jars button is disabled and i am unable to add jars.<br />I am using dynamic web project in eclipse and i am using tomcat server.<br />Anonymoushttps://www.blogger.com/profile/13641684012754596866noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-88450403407391505782021-03-10T20:38:08.911-08:002021-03-10T20:38:08.911-08:00I have this error : java.lang.ClassNotFoundExcepti...I have this error : java.lang.ClassNotFoundException: com.mysql.jdbc.Driver how to solve it?Anonymoushttps://www.blogger.com/profile/09094978562972355981noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-79496206560196955392021-03-05T23:42:56.289-08:002021-03-05T23:42:56.289-08:00To make a connection with JDBC you will need to ad...To make a connection with JDBC you will need to add my SQL connector jar file into your java project https://www.fiverr.com/share/edjv53Anonymoushttps://www.blogger.com/profile/06804405870854157191noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-62451677509341618632021-01-20T18:53:55.869-08:002021-01-20T18:53:55.869-08:00Hello Sravani, which versin of Java are you using?...Hello Sravani, which versin of Java are you using? From Java 9, JDBC is in separate module it not anymore with JDKjavin paulhttps://www.blogger.com/profile/15028902221295732276noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-85660532516957270792021-01-18T22:38:41.918-08:002021-01-18T22:38:41.918-08:00Sir I am getting module JDBC not found error while...Sir I am getting module JDBC not found error while exucuting sravanihttps://www.blogger.com/profile/08138755517404621419noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-11199814020306391422020-12-13T03:31:53.659-08:002020-12-13T03:31:53.659-08:00use Class.forName("com.mysql.jdbc.Dirver"...use Class.forName("com.mysql.jdbc.Dirver");<br />use capital C in place of ClassAmit Ankit Guptahttps://www.blogger.com/profile/13321375707803821385noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-79561455260227289162020-11-13T05:36:48.107-08:002020-11-13T05:36:48.107-08:00Add MySQL JDBC JAR into your classpath. Add MySQL JDBC JAR into your classpath. javin paulhttps://www.blogger.com/profile/15028902221295732276noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-77735965385506094162020-11-06T00:26:47.571-08:002020-11-06T00:26:47.571-08:00java.lang.ClassNotFoundException: com.mysql.jdbc.D...java.lang.ClassNotFoundException: com.mysql.jdbc.Driver getting this error even after adding external jar files please guide what to do<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-7835202514673426592020-09-12T06:02:04.999-07:002020-09-12T06:02:04.999-07:00Can you paste full error message including stack t...Can you paste full error message including stack trace?javin paulhttps://www.blogger.com/profile/15028902221295732276noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-5875610341483772862020-09-09T16:37:32.056-07:002020-09-09T16:37:32.056-07:00bonsoir!!
j'ai travaille sur Netbeans mon prog...bonsoir!!<br />j'ai travaille sur Netbeans mon programme java et je voulais connecter a mysql database ..j'ai téléchargé le driver jdbc et j'ai importé le fichier dans la librairie de mon projet..mais tjrs l'erreur est " java.lang.ClassNotFoundException: com.jdbc.mysql.Driver"<br />voici mon code :<br />package twitterdb;<br />import java.sql.*;<br />import java.util.*;<br />public class TwitterDb {<br /> public static void main(String[] args) {<br /> Connection cnx = connecterDB();<br /> }<br /> public static Connection connecterDB() {<br /> try{<br /> Class.forName("com.jdbc.mysql.Driver"); // charger mysql<br /> System.out.println("Driver bien établi");<br /> String url="jdbc:mysql://localhost:3306/memoire";<br /> String nomUser="root";<br /> String password="";<br /> Connection cnx = DriverManager.getConnection(url,nomUser,password);<br /> System.out.println("bien connecté a votre base de données");<br /> return cnx;<br /> }catch (Exception e);<br /> e.printStackTrace();<br /> return null ;<br /> }<br />}<br />s'il vous plait quelqu'un peut m'orienter a corrriger cet erreurAnonymoushttps://www.blogger.com/profile/15531761336697532314noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-65943527493852975912020-09-03T09:29:11.181-07:002020-09-03T09:29:11.181-07:00I am facing java.lang.ClassNotFoundException: com....I am facing java.lang.ClassNotFoundException: com.mysql.jdbc.driver<br /><br />I have using mysql-connector-java.8.0.21.jar, tomcat server 9.<br />My project is maven project and mysql-connector dependency is mentioned, and ofcourse all maven dependencies are mentioned in class path.<br /><br />FYI, i already tried by adding msql-connector.jar in tomcat server lib folder as per online comment. Anonymoushttps://www.blogger.com/profile/13472164915768147807noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-9634749050608999722020-06-27T01:56:36.447-07:002020-06-27T01:56:36.447-07:00va.lang.NoClassDefFoundError: org/hibernate/Query
...va.lang.NoClassDefFoundError: org/hibernate/Query<br /> com.controllerNew.NewBuyer_RegServ.doPost(NewBuyer_RegServ.java:54)<br /> javax.servlet.http.HttpServlet.service(HttpServlet.java:660)<br /> javax.servlet.http.HttpServlet.service(HttpServlet.java:741)<br /> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)<br />Root Cause<br /><br />java.lang.ClassNotFoundException: org.hibernate.Query<br /> org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1365)<br /> org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1188)<br /> com.controllerNew.NewBuyer_RegServ.doPost(NewBuyer_RegServ.java:54)<br /> javax.servlet.http.HttpServlet.service(HttpServlet.java:660)<br /> javax.servlet.http.HttpServlet.service(HttpServlet.java:741)<br /> org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)Anonymoushttps://www.blogger.com/profile/15232558001970417873noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-27957636654052556922020-05-22T07:20:12.206-07:002020-05-22T07:20:12.206-07:00Can you paste your driver code and JAR file. Can you paste your driver code and JAR file. javin paulhttps://www.blogger.com/profile/15028902221295732276noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-90011584650688704912020-05-16T12:24:44.616-07:002020-05-16T12:24:44.616-07:00I've added the jar file to the build path whil...I've added the jar file to the build path while connecting to the database using java program, still it shows the driver error,kindly help.<br />"java.lang.ClassNotFoundException: com.mysql.cj.jdbc.Driver"Anonymoushttps://www.blogger.com/profile/13857464372963692642noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-89376590014844588662020-05-15T04:50:53.207-07:002020-05-15T04:50:53.207-07:00It may not be in the classpath. If you can provide...It may not be in the classpath. If you can provide more details about your setup and how you are running the program, we may be able to locate the problem. javin paulhttps://www.blogger.com/profile/15028902221295732276noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-47784835724717391052020-05-12T10:25:30.870-07:002020-05-12T10:25:30.870-07:00I working on eclipse nd I have included MySQL libr...I working on eclipse nd I have included MySQL library already ..<br />But still show an exception com.mysql.jdbc.deiver <br />Public class MySQLconnection{<br />p s v m(String[] args){<br />try{<br />Class.forName("com.mysql.jdbc.driver ");<br />S.o.p("Driver loaded");<br />}<br />Catch(ClassNotFoundException e ){<br />s.o.p(" Exception" + e.getMessage());<br />}<br />}<br />}Anonymoushttps://www.blogger.com/profile/00600939419561159937noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-51853447054646788662020-04-09T23:00:03.913-07:002020-04-09T23:00:03.913-07:00There is an space in your classname at the end com...There is an space in your classname at the end com.mysql.jdbc.Driver ", I think you first correct that, it may help with the other error as well, if not then paste your full code and error and we can take a look here. javin paulhttps://www.blogger.com/profile/15028902221295732276noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-61106167503354851612020-04-08T22:35:55.379-07:002020-04-08T22:35:55.379-07:00i set the class path also
while writting the code...i set the class path also <br />while writting the code class.forName("com.mysql.jdbc.Driver "); error at class like Syntax error on token "class", invalid Expression can anyone slove itvamsihttps://www.blogger.com/profile/04047377542066857303noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-49349018288816299642020-04-07T02:33:45.379-07:002020-04-07T02:33:45.379-07:00Thanks It was helpful.Thanks It was helpful.lklavishhttps://www.blogger.com/profile/17219196588948821359noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-60908885644386893542020-03-26T11:05:46.730-07:002020-03-26T11:05:46.730-07:00If your server is tomcat, you can copy the "j...If your server is tomcat, you can copy the "jar" file (https://dev.mysql.com/downloads/connector/j/) in the folder "$CATALINA_HOME/lib" (https://juanalbertogt.wordpress.com/2013/07/25/instalar-tomcat-7-en-centos-rhel-o-fedora/). Then you just have to restart the server and it should work. If it still doesn't work for you and you are programming a web server, you could put the source code that does all the database query work in the "jsp" file or in another "jsp" file included in it.Manuel Emilio Vargas Herrerahttps://www.blogger.com/profile/14377479365581015915noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-89191406118804538452020-02-01T06:32:16.788-08:002020-02-01T06:32:16.788-08:00Can you provide more detail like how are you build...Can you provide more detail like how are you building is it Eclipse, Maven, ANT? most likely Java is picking the wrong classpath. javin paulhttps://www.blogger.com/profile/15028902221295732276noreply@blogger.comtag:blogger.com,1999:blog-694855878384792308.post-67413139966491947792020-01-31T06:00:27.225-08:002020-01-31T06:00:27.225-08:00I find myself with classnotfound exception in jbdc...I find myself with classnotfound exception in jbdc driver and I don't know why,because I already added the jar file in the build path Anonymoushttps://www.blogger.com/profile/01351898225563833315noreply@blogger.com