Send PUT, DELETE HTTP request in HttpURLConnection

Question

I have created web service call using java below code. Now I need to make delete and put operations to be perform.

URL url = new URL("http://example.com/questions");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod( "POST" );
conn.setRequestProperty("Content-Type", "application/json");

OutputStream os = conn.getOutputStream();
os.write(jsonBody.getBytes());
os.flush();

When I add below code to perform DELETE action it gives errors saying:

java.net.ProtocolException: HTTP method DELETE doesn't support output.

conn.setRequestMethod( "DELETE" );

So how to perform delete and put requests?

Please excuse the shouting, but **WHAT** errors does it give? Also, I would suggest [`HttpClient`](http://hc.apache.org/httpcomponents-client-ga/index.html) from apache. — Elliott Frisch, Nov 14 '14 at 05:43
edited the question. Any sample codes for web service requests? Any help? — manitaz, Nov 14 '14 at 05:46
Does http://stackoverflow.com/questions/1051004/how-to-send-put-delete-http-request-in-httpurlconnection help? — hgoebl, Nov 14 '14 at 06:36
I will checked this but it does not worked for me some reason. — manitaz, Nov 14 '14 at 06:43

score 7 · Accepted Answer · edited Dec 04 '14 at 16:16

PUT example using HttpURLConnection:

URL url = null;
try {
   url = new URL("http://localhost:8080/putservice");
} catch (MalformedURLException exception) {
    exception.printStackTrace();
}
HttpURLConnection httpURLConnection = null;
DataOutputStream dataOutputStream = null;
try {
    httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
    httpURLConnection.setRequestMethod("PUT");
    httpURLConnection.setDoInput(true);
    httpURLConnection.setDoOutput(true);
    dataOutputStream = new DataOutputStream(httpURLConnection.getOutputStream());
    dataOutputStream.write("hello");
} catch (IOException exception) {
    exception.printStackTrace();
}  finally {
    if (dataOutputStream != null) {
        try {
            dataOutputStream.flush();
            dataOutputStream.close();
        } catch (IOException exception) {
            exception.printStackTrace();
        }
    }
    if (httpsURLConnection != null) {
        httpsURLConnection.disconnect();
    }
}

DELETE example using HttpURLConnection:

URL url = null;
try {
    url = new URL("http://localhost:8080/deleteservice");
} catch (MalformedURLException exception) {
    exception.printStackTrace();
}
HttpURLConnection httpURLConnection = null;
try {
    httpURLConnection = (HttpURLConnection) url.openConnection();
    httpURLConnection.setRequestProperty("Content-Type",
                "application/x-www-form-urlencoded");
    httpURLConnection.setRequestMethod("DELETE");
    System.out.println(httpURLConnection.getResponseCode());
} catch (IOException exception) {
    exception.printStackTrace();
} finally {         
    if (httpURLConnection != null) {
        httpURLConnection.disconnect();
    }
}

In delete I need to use httpURLConnection.setRequestProperty("Content-Type", "application/json"); is it posssible? — manitaz, Nov 14 '14 at 09:24
java.net.ProtocolException: HTTP method DELETE doesn't support output — manitaz, Nov 18 '14 at 05:28

score 3 · Answer 2 · edited May 23 '17 at 10:30

FOR PUT

URL url = new URL("http://www.example.com/resource");
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
httpCon.setDoOutput(true);
httpCon.setRequestMethod("PUT");
OutputStreamWriter out = new OutputStreamWriter(
    httpCon.getOutputStream());
out.write("Resource content");
out.close();
httpCon.getInputStream();

FOR DELETE

URL url = new URL("http://www.example.com/resource");
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
httpCon.setDoOutput(true);
httpCon.setRequestProperty(
    "Content-Type", "application/x-www-form-urlencoded" );
httpCon.setRequestMethod("DELETE");
httpCon.connect();

Actually got it from the link here: Send PUT, DELETE HTTP request in HttpURLConnection

score 2 · Answer 3 · answered Nov 14 '14 at 06:05

2

i suggest you to use restlet client for web service request .please refer the bellow sample code ,it may help you

 Client client = new Client(new Context(), Protocol.HTTP);
   clientResource = new ClientResource(url);
        ResponseRepresentation responseRep = null;
         try {
            clientResource.setNext(client);           
            clientResource.delete();

       } catch (Exception e) {
           e.printStackTrace();

       }

answered Nov 14 '14 at 06:05

Jamsheer

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How to set content-type and the content? What is different HttpUrlConnection and this? – manitaz Nov 14 '14 at 06:12
http://stackoverflow.com/questions/23630094/how-does-restlet-client-handle-media-type-of-request please refer this link for content type handling – Jamsheer Nov 14 '14 at 06:28
let me check this link. Thanks for help. – manitaz Nov 14 '14 at 06:44

Send PUT, DELETE HTTP request in HttpURLConnection

3 Answers3

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