@ServletComponentScan(basePackages = “com.atguigu.admin”) 指定原生Servlet组件都放在那里
@WebServlet(urlPatterns = “/my”) 直接响应,没有经过Spring的拦截器
@WebFilter(urlPatterns={"/css/","/images/"})
@WebListener
在启动类上加@ServletComponentScan 注解
@ServletComponentScan(basePackages="com.zm.webs" ) //指定原生Servlet组件都放在那里;只要是com.zm.webs下的包里面有servlet都可以扫描到 @SpringBootApplication public class SpringbootLearnApplication { public static void main(String[] args) { SpringApplication.run(Boot05WebAdminApplication.class, args); } }
1.注入监听器
@Slf4j @WebListener public class MyServletContextListener implements ServletContextListener { @Override public void contextInitialized(ServletContextEvent sce) { log.info("MyServletContextListener监听到项目初始化完成"); } @Override public void contextDestroyed(ServletContextEvent sce) { log.info("MyServletContextListener监听到项目销毁"); } }
2.注入过滤器
@Slf4j @WebFilter(urlPatterns = {"/css/*","/images/*"}) //访问某个资源下的所有文件时 /**是spring的写法 /*是servlet的写法 public class MyFilter implements Filter { @Override public void init(FilterConfig filterConfig) throws ServletException { log.info("MyFilter初始化完成"); } @Override public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { log.info("MyFilter工作"); filterChain.doFilter(servletRequest,servletResponse); } @Override public void destroy() { log.info("MyFilter销毁"); } }
3.注入Servlet
@WebServlet(urlPatterns = "/my") public class MyServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { resp.getWriter().write("Hello,servlet"); } }
标签:info,Filter,SpringBoot,void,Listener,Override,Servlet,public,log From: https://www.cnblogs.com/ErenYeager/p/17008955.html