progexception3.java

scwcd的考试,测试代码,如果希望参加此类考试将非常的有帮助

package scwcd.lab05;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;

public class ProgException3 extends HttpServlet {
  public void doGet(HttpServletRequest request,
                    HttpServletResponse response)
         throws IOException, ServletException {
    String[] array1 = new String[3];
   
    try {
      array1[4] = "some message...";
    } catch (ArrayIndexOutOfBoundsException e) {
      ServletContext context = getServletContext();
      RequestDispatcher errorPage
          = context.getNamedDispatcher("ProgExceptionHandler");
      request.setAttribute("request_uri",
                            request.getRequestURI());
      request.setAttribute("thrown_exception",e);
      errorPage.forward(request, response); 
    }
  }
}