LoginServlet是一个Servlet类，代码如下 public class LoginServlet extends ___________ { public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { … } public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { … } } 在下划线处应填写（）

Filter过滤器中哪个方法在过滤器被销毁时被调用？ A: init() B: doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) C: destory() D: init(FilterConfig config)

阅读下面代码片段： Servlet1： response.setCharacterEncoding("utf-8"); response.setHeader("Content-Type", "text/html;charset=utf-8"); response.getWriter().write("传播"); request.getRequestDispatcher("/servlet/Servlet2") .forward(request,resp onse); Servlet2： response.getWriter().write("智慧"); request.getRequestDispatcher("/servlet/Servlet3") .forward(request,response); response.setHeader("Content-Type", "text/html;charset=iso8859-1"); Servlet3： response.getWriter().write("挥洒汗水"); 请问当浏览器访问Servlet1时会有什么样的输出：

给定如下所示的Java Servlet代码片段，用户在浏览器地址栏中键入正确的请求URL并回车后，在控制台上显示的结果是（）。 public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ System.out.println(“get”); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ System.out.println(“post”); } protected void service(HttpServletRequest req, HttpSergvletResponse resp) throws ServletException, IOException{ System.out.println(“service”); }

下列代码中，使用了requests的Session对象，并调用prepare_request()为使prepped为赋值。有关Prepped这个对象的作用，下列描述最为符合的是（ ）。 from requests import Request, Session s = Session() req = Request('GET', url, data=data, headers=headers) prepped = s.prepare_request(req) # do something with prepped.body prepped.body = 'Seriously, send exactly these bytes.' # do something with prepped.headers prepped.headers['Keep-Dead'] = 'parrot' resp = s.send(prepped, stream=stream, verify=verify, proxies=proxies, cert=cert, timeout=timeout ) print(resp.status_code)