Eclipse에서 웹 응용 프로그램을 만들었지 만 SQL Workbench에서 만든 스키마에 연결할 수 없습니다. 그래서 누구나 내가 잘못한 것을 자세히 설명해 줄 수 있습니다.mysql workbench의 데이터베이스를 웹 애플리케이션과 어떻게 연결해야합니까?
try{
Class.forName("com.mysql.jdbc.Driver");
Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/users","root","root");
Statement stmt=con.createStatement();
stmt.executeQuery("Insert into Regsitered_users(Name,Pass,email)" + "values('"+name+"','"+pass+"','"+email+"')");
}
그러나이 오류가 발생합니다 : - : - 여기
연결 내 코드입니다java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at com.arithmatic.pkg.Reg.doPost(Reg.java:41)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
예 해당 jar 파일을 다운로드하여 작업 영역에 추가했으며 그 경로도 작성했습니다. 아직도 나는 그 오류를 얻고있다. @PetarPetrov –
http://stackoverflow.com/questions/1585811/classnotfoundexception-com-mysql-jdbc-driver 읽기. –