fsockopen equivalent in JSP

Question

How do i go about converting this code to JSP

Any help appreciated..!

$fp = fsockopen(\"www.example.com\", 80, $errno, $errstr, 30);
if (!$fp) {
             


        

Answer 1

You can do this with the Apache HTTP Components library. Something like the following should work with the HTTP Components library:

<%@ page import="org.apache.http.*, org.apache.http.impl.*, org.apache.http.params.*, org.apache.http.protocol.*, org.apache.http.message.BasicHttpRequest, org.apache.http.util.EntityUtils,  java.net.Socket" %>

<%
HttpParams params = new SyncBasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, "UTF-8");
HttpProtocolParams.setUserAgent(params, "HttpComponents/1.1");
HttpProtocolParams.setUseExpectContinue(params, true);

HttpProcessor httpproc = new ImmutableHttpProcessor(new HttpRequestInterceptor[] {
        new RequestContent(),
        new RequestTargetHost(),
        new RequestConnControl(),
        new RequestUserAgent(),
        new RequestExpectContinue()});

HttpRequestExecutor httpexecutor = new HttpRequestExecutor();

HttpContext context = new BasicHttpContext(null);
HttpHost host = new HttpHost("www.example.com", 80);

DefaultHttpClientConnection conn = new DefaultHttpClientConnection();
ConnectionReuseStrategy connStrategy = new DefaultConnectionReuseStrategy();

context.setAttribute(ExecutionContext.HTTP_CONNECTION, conn);
context.setAttribute(ExecutionContext.HTTP_TARGET_HOST, host);

try 
{        
     Socket socket = new Socket(host.getHostName(), host.getPort());
     conn.bind(socket, params);

     BasicHttpRequest request = new BasicHttpRequest("GET", "/");


     request.setParams(params);
     httpexecutor.preProcess(request, httpproc, context);
     HttpResponse response = httpexecutor.execute(request, conn, context);
     response.setParams(params);
     httpexecutor.postProcess(response, httpproc, context);

%>
<%=EntityUtils.toString(response.getEntity())%>
<%
} 
finally 
{
    conn.close();
}
%>