Wednesday, July 8, 2009

Reading the status code of HTTP Request !

When you make an HTTP request to any server url throuh your client software, lets say IE, HTTP Status codes are returned by the server to the client software to determine the outcome of your request. There are five different classes of status code range. They are
Status codes 100-101
Status codes 200-206
Status codes 300-307
Status codes 400-417
Status codes 500-505

Following is a simple program written in groovy that checks and returns the status code of any url.

import java.net.URL;
def url
def message =""
boolean fail=true
def urlString="http://192.168.0.1/test/test.html"
println checkURL(urlString)

def checkURL(urlString){
int status_code
def tempmessage=""
URL URLserver = new URL("urlString");
try{
URLConnection connection = (HttpURLConnection)URLserver.openConnection();

status_code = connection.getResponseCode();


switch (status_code)
{
case 200:
tempmessage=" Connection Successful"
break;
case 401:
tempmessage="UnAuthorised"
break;
case 405 :
tempmessage= " Resource Not Found"
break;
case 408:
tempmessage="Request Time-out"
break;
case 500:
tempmessage="Internal Server Error"
break;
case 502:
tempmessage="Bad Gateway"
break;
case 503:
tempmessage="Service Temporarily Unavailable"
break;
default :
tempmessage= connection.getResponseMessage()
break;

}
}
catch (Exception exc){
tempmessage=exc

}

return "\n "+urlString+" :"+status_code+":"+tempmessage;

}




Visit http://www.w3.org/Protocols/HTTP/HTRESP.html for detail about the status codes.



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