已知web.xml中存在如下配置:2下面的说法,正确的是()
A. 在空闲状态下,2秒后将导致session对象销毁
B. 在空闲状态下,2分钟后将导致session对象销毁
C. 在空闲状态下,2毫秒后将导致session对象销毁
D. 在空闲状态下,2小时后将导致session对象销毁
查看答案
下面选项中,用于监听ServletRequest对象中属性变更的接口是()
A. HttpSessionAttributeListener
B. ServletContextAttributeListener
C. ServletRequestAttributeListener
D. ApplicationAttributeListener
已知,Filter1为HttpServlet1提供过滤。Filter1的doFilter()方法的代码如下:public doFilter(ServletRequest request,ServletResponse response,FilterChain chain)throws IOException,ServletException{ System.out.print(“one”);chain.doFilter(request,response);System.out.print(“two”);}HttpServlet1的service()方法的代码如下:public void service(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException {System.out.print(“before”);PrintWriter out = response.getWriter();out.print(“hello”);System.out.print(“after”);}当客户端访问HttpServlet1时,在控制台打印的结果是( )
A. one two before hello after
B. one before after two
C. one before hello after two
D. before after one two
下面选项中,用来让Filter链上的下一个Filter执行的方法是( )
A. service()方法
B. filter()方法
C. doFilter()方法
D. doGet()方法
下面选项中,用于初始化过滤器的方法是( )
A. init(FilterConfig filterConfig)
B. doFilter(ServletRequest req,ServletResponse resp,FilterChain chain)
C. destroy()
D. init(ServletConfig servletConfig)