exceptionhandlerservlet.java

来自「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」· Java 代码 · 共 37 行

JAVA
37
字号
package scwcd.lab05;

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

public class ExceptionHandlerServlet extends HttpServlet {
  public void doGet(HttpServletRequest request,
                    HttpServletResponse response)
              throws IOException, ServletException {
    response.setContentType("text/html; charset=GB2312");
    PrintWriter out = response.getWriter();
    
    Integer status_code =(Integer)request.getAttribute(
            "javax.servlet.error.status_code");
        
    if ( status_code.intValue() == 401 ) {
      out.println("<HTML><BODY>");
      out.println("<H2><font color=#0000FF>HTTP Status Code: ");
      out.println(status_code);
      out.println("</font></H2>");
      out.println("<BR>");
      out.println("您尚未通过服务器的验证程序,无法浏览该网页!");
      out.println("</BODY></HTML>");
    }
    if ( status_code.intValue() == 404 ) {
      out.println("<HTML><BODY>");
      out.println("<H2><font color=#0000FF>HTTP Status Code: ");
      out.println(status_code);
      out.println("</font></H2>");
      out.println("<BR>");
      out.println("您所指定的URL不正确,或是要访问的文件已移动到其他位置!");
      out.println("</BODY></HTML>");
    }
  }
}

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