只在默认开关情况下调用Servlet[重复]

Question

这里，当url模式为“/login/new”时，不调用servlet，我通过打印到Console来验证这一点。它只适用于默认情况，即“/login”

@WebServlet("/Login")
public class UserServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
       
    private UserDAO userDAO;
    
    public void init()
    {
        userDAO = new UserDAO();
    }
    
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        System.out.println("Servlet invoked !!");
        String action = request.getServletPath();
        System.out.println(action);
        switch(action)
        {
        case "/new":
            showNewForm(request,response);
            break;  
        case "/insert":
            insertUser(request, response);
            break;
        case "/update":
            updateUser(request, response);
            break;
        case "/delete":
            deleteUser(request, response);
            break;
        case "/edit":
            showEditForm(request, response);
            break;
        case "/login":
            RequestDispatcher dispatcher= request.getRequestDispatcher("/login.jsp");
            dispatcher.forward(request, response);
            
            
            
        default:
            //listUser(request,response);
            showLogin(request,response);
            break;
        
        
        }

期望的输出是应该调用“/new”大小写中的函数。我遗漏了什么？

Answer 1

将路径更新为以下内容

@WebServlet("/Login/*")

，并尝试检查是否检索到URL路径的最后一部分和下面的小写

String action = request.getRequestURI();
action = action.substring(action.lastIndexOf("/")).toLowerCase();