Re: help (newbie): JSP openConnection DataInputStream (from classic ASP)

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Mon, 20 Aug 2007 19:48:28 -0400
Message-ID:
<46ca2843$0$90273$14726298@news.sunsite.dk>
smartminion wrote:

Ideally we'd like to be able to give a snippet of code in multiple
server-side languages (ASP, PHP, .NET, JSP) to pull content from our
site - with as little effort on their part as necessary.

In ASP:
getcontent.asp
--------------
<%
  strID = "myid"
  strURL = "http://www.partnerco.net/shared/?id=" & strID
  Set objXmlHttp = Server.CreateObject("Msxml2.ServerXMLHTTP")
  objXmlHttp.open "GET", strURL, False
  objXmlHttp.send
  strHTML = objXmlHttp.responseText
  response.write strHTML
%>
--------------

I've made an attempt - however I get a HTTP Status 500 access denied
error...
In JSP:
getcontent.jsp
--------------
<%@ page language="java" import="java.net.*,java.util.*,java.io.*" %>
<%
URL url;
URLConnection urlConn;
DataInputStream in;

url = new URL ("http://www.partnerco.net/shared/?id=01");
urlConn = url.openConnection();

in = new DataInputStream(urlConn.getInputStream());
String strSVContent;
while (null != ((strSVContent = in.readLine()))) {
  out.println(strSVContent);
}
in.close();
%>
--------------

Error Info
--------------
exception
org.apache.jasper.JasperException: access denied
(java.net.SocketPermission www.partnerco.net:80 connect,resolve)
...

root cause
java.security.AccessControlException: access denied
(java.net.SocketPermission www.partnerco.net:80 connect,resolve)
...
--------------
Some googling indicates I may need to update a policy file for tomcat.
** Is this something a typical other user of this code would have to
do??


Check conf/catalina.policy !

Arne

PS: Use BufferedReader instead of DataInputStream.

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