ssm注解配置过滤器

/**
 * filterName或servletNames表示该过滤器的名字  
 * 不同的是servletNames可以指定多个名字
 * urlPatterns表示要拦截的请求
 * "/*"表示拦截所有请求
 */
@WebFilter(urlPatterns={"/index/index.do","/index1.do"},
         filterName ="LogFilter")
public class LogFilter implements Filter {


    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        System.out.println("过滤器初始化");
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        System.out.println("过滤器执行");
        //过滤器链，继续执行下一个过滤器
        filterChain.doFilter(servletRequest,servletResponse);
    }

    @Override
    public void destroy() {
        System.out.println("过滤器销毁");
    }
}