CODEWITHSUNDEEP
javahtmlhttphttp-status-code-301
Tony
Tony

Reputation: 3805

301 Moved Permanently

I'm trying to get HTML by URL in Java. But 301 Moved Permanently is all that I've got. Another URLs work. What's wrong? This is my code:

 hh= new URL("http://hh.ru");
        in = new BufferedReader(
                new InputStreamReader(hh.openStream()));


        while ((inputLine = in.readLine()) != null) {

            sb.append(inputLine).append("\n");
            str=sb.toString();//returns 301


        }

Upvotes: 8

Views: 49689

Answers (6)

kimoduor
kimoduor

Reputation: 614

I resolved mine when I put the specific file running on the server. Instead of http://hh.ru, I used http://hh.ru/index.php. It worked for me

Upvotes: 0

Vishrant
Vishrant

Reputation: 16628

Check if the URL provided is HTTP or HTTPS, consider adding protocol is you are using only domain name like http(s)://domainname.com/resource-name

Read: https://en.wikipedia.org/wiki/HTTP_301

Upvotes: 0

Jk1
Jk1

Reputation: 11443

You're facing a redirect to other URL. It's quite normal and web site may have many reasons to redirect you. Just follow the redirect based on "Location" HTTP header like that:

URL hh= new URL("http://hh.ru");
URLConnection connection = hh.openConnection();
String redirect = connection.getHeaderField("Location");
if (redirect != null){
    connection = new URL(redirect).openConnection();
}
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String inputLine;
System.out.println();
while ((inputLine = in.readLine()) != null) {
    System.out.println(inputLine);
}

Your browser is following redirects automaticaly, but using URLConnection you should do it by your own. If it bothers you take a look at other Java HTTP client implementations, like Apache HTTP Client. Most of them are able to follow redirect automatically.

Upvotes: 22

Aviator
Aviator

Reputation: 522

found this answer useful and improved a little due to the possibility of multiple redirections (e.g. 307 then 301).

URLConnection urlConnection = url.openConnection();
                String redirect = urlConnection.getHeaderField("Location");
                for (int i = 0; i < MAX_REDIRECTS ; i++) {
                    if (redirect != null) {
                        urlConnection = new URL(redirect).openConnection();
                        redirect = urlConnection.getHeaderField("Location");
                    } else {
                        break;
                    }
                }

Upvotes: 2

Soosh
Soosh

Reputation: 812

I tested your code and it is ok, but when I use "hh.ru", the same problem as yours, and when I use lynx(command line browser) to connect to "hh.ru", it will show me that it is redirecting to another url and then show me that it is moved permanently and after that this alert:
"Alert!: This client does not contain support for HTTPS URLs"

Upvotes: 0

ProgramFOX
ProgramFOX

Reputation: 6390

There's nothing wrong with your code. The message means that hh.ru is permanently moved to another domain.

Upvotes: 1

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