Question

My application should send a https GET request.

Every time I get an exception from it. If I uncomment url = "http://www.example.com" it works perfect. Otherwise it throws an exception “Illegal character in scheme at index 3“.

How to fix it?

   public class TestHttpManager {

   private final static String mask= "httрs://%s/action/?key=%s&param1=%s&param2=%s&param3=%s";

   public static void Send() throws IOException, URISyntaxException {
           if (....)
              url = String.format(UrlMask, "anyHostName.com", "keyTest", "param1", "param2", "param3");

             //url = "http://www.example.com";
             HttpClient client = new DefaultHttpClient();
             HttpGet request = new HttpGet();
             request.setURI(new URI(url));
             client.execute(request);
        }

     }

UPDATE: I have an error Tagret host must not be null, or set in parameters too.

Answer 1

You have done url = "http://www.example.com"+stringOfParameter;

now use this function to well format the above url,

url = new String(url.trim().replace(" ", "%20").replace("&", "%26")
.replace(",", "%2c").replace("(", "%28").replace(")", "%29")
.replace("!", "%21").replace("=", "%3D").replace("<", "%3C")
.replace(">", "%3E").replace("#", "%23").replace("$", "%24")
.replace("'", "%27").replace("*", "%2A").replace("-", "%2D")
.replace(".", "%2E").replace("/", "%2F").replace(":", "%3A")
.replace(";", "%3B").replace("?", "%3F").replace("@", "%40")
.replace("[", "%5B").replace("\\", "%5C").replace("]", "%5D")
.replace("_", "%5F").replace("`", "%60").replace("{", "%7B")
.replace("|", "%7C").replace("}", "%7D"));

and now use the formatted url.

EDIT :
In your case you got httрs://serverName.com/action/key=myKey&param1=param1&param2=param2&param3=param‌​3

with mask, I dont know much about that, but you can do

String urlLink = "httрs://serverName.com/action/";
String paramLink = "key=myKey&param1=param1&param2=param2&param3=param‌​3";

and then use the above answer.