阅读下列的代码publicvoiddoGet(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException,IOException{out.println("hellokity!");}若使Servlet运行的结果为hikitty!,填写在空白处的代码为()则应在此Servlet下划线处添加如下()代码
A. PrintWriterout=response.getWriter();
B. PrintWriteroutrequest.getWriter();
C. OutputStreamout=response.getOutputStream();
D. OutputStreamout=request.getWriter();
查看答案
HttpServletResponse对象中的getOutputStream()和getWriter()方法同时使用,将产生的异常是()
ArithmeticException
B. IllegalStateException
C. SQLException
D. IOException
如果指定名称的参数存在但没有设置值,则getParameter()方法的返回值是()
A. none
B. “”";i:2;N,"“”
C. .
D.
HttpServletRequest接口中的getDateHeader(Stringname)方法的返回值类型是()
A. int
B. java.util.Date
C. long
D. double
访问如下的URL地址:http://www.itcast.cn/HelloServlet?name=youjun&name=itcast&age=30则在HelloServlet可以得到所有参数名的方法是()
A. request.getParameterMap();
B. request.getParameterNames();
C. request.getParameter();
D. request.getParameterValues();