专做女鞋的网站代发广州,侠客推 网站建设,深圳科技公司,手机上做整蛊网站一、Springboot整合Servlet 第一种方案#xff1a;通过注解扫描完成filter组建的注册 1、编写自定义filter(FirstFilter)
//urlPattern是一个数组可以添加多个
//WebFilter(filterName FirstFilter,urlPatterns {*.do,*.jsp})
WebFilt…一、Springboot整合Servlet 第一种方案通过注解扫描完成filter组建的注册 1、编写自定义filter(FirstFilter)
//urlPattern是一个数组可以添加多个
//WebFilter(filterName FirstFilter,urlPatterns {*.do,*.jsp})
WebFilter(filterName FirstFilter, urlPatterns {/first})
public class FirstFilter implements Filter {Overridepublic void init(FilterConfig filterConfig) throws ServletException {}Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {System.out.println(进入filter);
// //放行chain.doFilter(request, response);System.out.println(离开filter);}Overridepublic void destroy() {}
}2、创建servlet(测试用)
WebServlet(name FirstServlet,urlPatterns /first)
public class FirstServlet extends HttpServlet {Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {System.out.println(FirstServlet启动........);}
}3、编写一个启动类,并在启动类上添加注解
SpringBootApplication
ServletComponentScan
//在springboot启动时会扫描Webfilter注解和webFilter注解并将该类实例化
public class SpringBootChapter1Application {public static void main(String[] args) {SpringApplication.run(SpringBootChapter1Application.class, args);}}4、启动项目及浏览器验证http://localhost:8080/first5、查看控制台 第二种方案通过方法完成filter组件注册 1、编写一个自定义的filter
public class SecondFilter implements Filter {Overridepublic void init(FilterConfig filterConfig) throws ServletException {}Overridepublic void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {System.out.println(进入SecondFilter);//放行chain.doFilter(request, response);System.out.println(离开SecondFilter);}Overridepublic void destroy() {}
}2、创建一个servlet(测试用)
public class SecondServlet extends HttpServlet {Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {System.out.println(SecondServlet启动........);}
}3、创建一个启动类
/*** author gblfy* ClassNme AppFilter2* Description springboot整合filter方式2* Date 2019/2/20 13:45* version1.0*/
SpringBootApplication
public class SpringbootFilterApplication2 {public static void main(String[] args) {SpringApplication.run(SpringbootFilterApplication2.class, args);}// 注册servletBeanpublic ServletRegistrationBean getServletRegistrationBean() {ServletRegistrationBean bean new ServletRegistrationBean(new SecondServlet());bean.addUrlMappings(/second);return bean;}// 注册filterBeanpublic FilterRegistrationBean getFilterRegistrationBean() {FilterRegistrationBean bean new FilterRegistrationBean(new SecondFilter());
// bean.addUrlPatterns(new String[]{*.do,*.jsp});bean.addUrlPatterns(/second);return bean;}
}4、启动项目及浏览器验证http://localhost:8080/second 5、查看控制台
本文源码下载 github地址 https://github.com/gb-heima/Spring-Boot-Actual-Combat/tree/master/parent/spring-boot-chapter-5
