servlet小问题,高手指教,多谢!
下面是我的程序,我认为应该在第二次调用页面时出现第一次调用时写的cookie,但总是在第三次出现,也就是隔一次,为什么?
说明:我用的是tomcat5.0.27,jdk1.5.0
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
public class ServletSession1 extends HttpServlet
{
int i=0;
public void service(HttpServletRequest req,HttpServletResponse res)
throws ServletException,IOException
{
res.setContentType("text/html");
i++;
res.addCookie(new Cookie("cookie"+i,""+(i*i)));
PrintWriter out=res.getWriter();
out.println("<html><head><title>Test the Cookie of the servlet</title></head>");
out.println("<body><center><h1>Test result"+i+"</h1>");
Cookie[] c=req.getCookies();
if(c!=null)
{
for(int j=0;j<c.length-1;j++)
{
out.println("Cookie:"+c[j].getName()+"="+c[j].getValue());
}
}
out.println("</center>");
out.println("</body></html>");
out.close();
}
}