一、整合Servlet 1、通过注解扫描完成Servlet组件的注册 1.1、编写Servlet /**
- SpringBoot整合Servlet方式一
*
- FirstServlet
- com.yunlovec.servlet.FirstServlet *
*
- FirstServlet
- /first *
*/ @WebServlet(name="FirstServlet",urlPatterns="/first") public class FirstServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
System.out.println("FirstServlet-----");
}
}
1.2、编写启动类 /**
- SpringBoot整合Servlet方式一
*/ @SpringBootApplication @ServletComponentScan//在springBoot启动时扫描@WebServlet，并将该类实例化 public class App { public static void main(String[] args) { SpringApplication.run(App.class, args); } }
2、通过方法完成Servlet组件的注册 2.1、编写Servlet /**
- SpringBoot整合Servlet方式二
*/ public class SecondServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
System.out.println("SecondServlet------");
}
}
2.2、编写启动类 /** *
- SpringBoot整合Servlet方式二 */ @SpringBootApplication public class App2 { public static void main(String[] args) { SpringApplication.run(App2.class, args); } @Bean public ServletRegistrationBean geServletRegistrationBean() { ServletRegistrationBean bean = new ServletRegistrationBean(new SecondServlet()); bean.addUrlMappings("/second"); return bean; } }
二、整合filter 1、通过注解扫描完成filter组件注册 1.1、编写filter /**
- SpringBoot整合Filter方式一
-
<filter-name>FirstFilter</filter-name> -
<filter-class>com.yunlovec.filter.FirstFilter</filter-class> -
<filter-name>FirstFilter</filter-name> -
<url-pattern>/first</url-pattern>
/ //@WebFilter(filterName="FirstFilter",urlPatterns= {".do","*.jsp"}) @WebFilter(filterName="FirstFilter",urlPatterns="/first") public class FirstFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
System.out.println("进入filter");
chain.doFilter(request, response);
System.out.println("离开filter");
}
@Override
public void destroy() {
// TODO Auto-generated method stub
}
}
1.2、编写启动类 /**
- SpringBoot整合filter方式一
*/ @SpringBootApplication @ServletComponentScan public class App {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
}
2、通过方法完成filter组建注册 2.1、编写filter /**
- SpringBoot整合Filter方式二
*/ public class SecondFilter implements Filter {
@Override
public void init(FilterConfig filterConfig) throws ServletException {
// TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
System.out.println("进入secondFilter");
chain.doFilter(request, response);
System.out.println("离开secondFilter");
}
@Override
public void destroy() {
// TODO Auto-generated method stub
}
}
2.2、编写启动类 /**
- SpringBoot整合filter方式二
*/
@SpringBootApplication public class APP2 {
public static void main(String[] args) {
SpringApplication.run(App.class, args);
}
/**
* 注册servlet
* @return
*/
@Bean
public ServletRegistrationBean getsServletRegistrationBean() {
ServletRegistrationBean bean = new ServletRegistrationBean(new SecondServlet());
bean.addUrlMappings("/second");
return bean;
}
/**
* 注册Filter
* @return
*/
@Bean
public FilterRegistrationBean getFilRegistrationBean() {
FilterRegistrationBean bean = new FilterRegistrationBean(new SecondFilter());
// bean.addUrlPatterns(new String[] {".do",".jsp"}); bean.addUrlPatterns("/second"); return bean; } }