📄 checkuserservlet.java

📁 一本jsp自学教材

💻 JAVA

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

public class CheckUserServlet extends HttpServlet {


    public void doGet(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException
    {        
        response.setContentType("text/html;charset=GBK");
        PrintWriter out = response.getWriter();
        out.println("<html>");
        out.println("<head>");
	out.println("<title>Check User</title>");
        out.println("</head>");
        out.println("<body bgcolor=\"white\">");
        String name=request.getRemoteUser();
        if(name!=null)
          {
           out.print("<B>USER:</B>"+name);
           if(request.isUserInRole("admin"))
             {
               out.print("<BR><B>INFO:</B>"+name+"您是以管理员身份登录的！");
               out.print("<BR><B>E-mail:</B>caxton@126.com");
             }
           else
             {
               out.print("<BR><B>INFO:</B>"+name+"很抱歉！有的信息你看不到，因为你是普通用户。");
             }
          }
    }
    public void doPost(HttpServletRequest request,
                      HttpServletResponse response)
        throws IOException, ServletException
    {  
      doGet(request,response);    
    }
}

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