i'm trying to connect to my db and show the data inside (also create, modify and delete) and isn't working, i dont know why. You can see the files here 我收到doPost和doGet错误。 error pic 1 error pic 2 javax.servlet.ServletException: Servlet execution threw an ...

So I'm setting up an AMS EC2 to run jenkins and tomcat. I have Jenkins up and running fine on port 8080 and have been able to access it on my home computer through http://<ip address>:8080 I went from there to trying to set up tomcat. However, tomcat natur...

我将类路径设置如下： CLASS_PATH：C：\ Program Files \ Apache Software Foundation \ Tomcat 10.0 \ lib; C：\ Program Files（x86）\ Java \ mysql-connector.jar; C：\ Program Files（x86）\ Java \ sqljdbc_8.2 \ enu \ mssql-jdbc-8.2.0.jre8.jar; 而且我还尝试在编译时使用jar文件：- java -cp C：\ Pro...

我正在尝试使用Spring Boot MVC构建一个简单的Web应用程序 我的控制器如下： @Controller public class ControllerHome { @RequestMapping("/") String getHome() { return "home"; } } 主要的应用程序类别如下： @SpringBootApplication public class Demo4Application { static void main(String[] args) { ...