~~~ package com.kimgao.bootlauch.config; import lombok.extern.slf4j.Slf4j; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; @WebServlet(name = "firstServlet", urlPatterns = "/firstServlet") //标记为servlet，以便启动器扫描。 @Slf4j public class FirstServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { log.info("serverlet"); resp.getWriter().append("firstServlet"); } } ~~~