java - How to call a servlet from JSP page? -
possible duplicate:
calling servlet jsp file
i have used following code call conn.java (servlet) index.jsp. works.
<%@page import= "java.util.arraylist"%> <%@page contenttype="text/html" pageencoding="utf-8"%> <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> <%@ page import= "aa.conn" %> <jsp:usebean id= "conne" class= "conn" scope= "session"/> <jsp:setproperty name= "conne" property= "*"/> <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> <title>jsp</title> </head> <body> <link rel="stylesheet" href="rowcolor.css" type="text/css"> <% conne.con(request, response); arraylist newlist=null; newlist=(arraylist)request.getattribute("data1"); int noofrows=(integer)newlist.get(0); int q = noofrows / 5; if(noofrows%5!=0) q+=1; out.println("pages --->>>"); (int t = 1; t <= q; t++) { out.println("<a href=index.jsp?id=" + t + " name=" + t + "id=" + t + ">"); out.println(" " + t); out.println("</a>"); } conne.disp(request, response); conne.dispgraphtab(request, response); %> </body> </html> but, following code doesn't work. want call newservlet graphcon.jsp.
<%@page contenttype="text/html" pageencoding="utf-8"%> <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> <%@ page import= "aa.newservlet" %> <jsp:usebean id= "co" class= "newservlet" scope= "session"/> <jsp:setproperty name= "co" property= "*"/> <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> <title>jsp page</title> </head> <body> </body> </html> what problem code? error is:
exception javax.servlet.servletexception: java.lang.instantiationexception: newservlet root cause java.lang.instantiationexception: newservlet
make question clear. first describe want , describe steps have followed accomplish things want , problems occurring steps. guess want want redirect request 1 servlet. use sendredirect function.
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