Project is structured as follows:
src : com.restaurant.servlet --> RegisterServlet
WebContent : ch03 --> register.jsp
Browser and enter localhost: 8080 / /ch03/register.jsp project name to jump to the src RegisterServlet
Using a relative path should be written jsp: action = "/ restaurant / servlet / RegisterServlet"
Use an absolute path can not access can only use relative paths
Saying:
Relative path: Jump start is initiated the path of the file localhost: 8080 / project name /xxx.jsp----localhost:8080/ project name / xxxServlet
Absolute path: Start plus / path is the IP address of the server localhost: 8080 / project name /xxx.jsp----localhost:8080/ project name / xxxServlet
Reference blog: https://www.wandouip.com/t5i210656/