调用HttpSession的removeAttribute()方法时,会触发哪个方法调用?(假设有关联的监听器)______。
A. HttpSessionListener的attributeRemoved()方法
B. HttpSessionActivateionListener的attributeRemoved()方法
C. HttpSessionBindingListener的attributeRemoved()方法
D. HttpSessionAttributeListener的attributeRemoved()方法
查看答案
在web.xml文件中,元素不是用来配置过滤器的。
A.
B.
C. 和
D.
下述代码定义了两个过滤器,并在web.xml配置完毕:Filter1.javapublic class Filter1 implements Filter {@Overridepublic void destroy() {}@Overridepublic void doFilter(ServletRequest arg0, ServletResponse arg1,FilterChain arg2)throws IOException, ServletException {System.out.println("enter Filter1");arg2.doFilter(arg0, arg1);System.out.println("exit Filter1");}@Overridepublic void init(FilterConfig arg0) throws ServletException {}}Filter2.javapublic class Filter2 implements Filter {@Overridepublic void destroy() {}@Overridepublic void doFilter(ServletRequest arg0, ServletResponse arg1,FilterChain arg2)throws IOException, ServletException {System.out.println("enter Filter2");arg2.doFilter(arg0, arg1);System.out.println("exit Filter2");}@Overridepublic void init(FilterConfig arg0) throws ServletException {}}web.xmlfilter1x.Filter1filter2x.Filter2filter1/*filter2/*当访问网站首页时,控制台的输出为______。
A. enter Filter1enter Filter2exit Filter2exit Filter1
B. enter Filter1enter Filter2exit Filter1exit Filter2
C. enter Filter2enter Filter1exit Filter2exit Filter1
D. enter Filter2enter Filter1exit Filter1exit Filter2
在web.xml文件中注册监听器时需要使用元素,该元素的唯一一个子元素是
A.
B.
C.
D.
在web.xml文件中注册监听器时需要使用元素,该元素的唯一一个子元素是
A.
B.
C.
D.