Java HTTP Header createHttpConnection(URL endpointUrl, String httpMethod, Map headers)

Description

create Http Connection

License

Apache License

Declaration

public static HttpURLConnection createHttpConnection(URL endpointUrl, String httpMethod,
            Map<String, String> headers) 

Method Source Code

//package com.java2s;
/*/* ww  w  . j  a  v a2  s . c o  m*/
 * Copyright (c) 2008-2016 Haulmont.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Map;

public class Main {
    public static HttpURLConnection createHttpConnection(URL endpointUrl, String httpMethod,
            Map<String, String> headers) {
        try {
            HttpURLConnection connection = (HttpURLConnection) endpointUrl.openConnection();
            connection.setRequestMethod(httpMethod);

            if (headers != null) {
                System.out.println("--------- Request headers ---------");
                for (String headerKey : headers.keySet()) {
                    System.out.println(headerKey + ": " + headers.get(headerKey));
                    connection.setRequestProperty(headerKey, headers.get(headerKey));
                }
            }

            connection.setUseCaches(false);
            connection.setDoInput(true);
            connection.setDoOutput(true);
            return connection;
        } catch (Exception e) {
            throw new RuntimeException("Cannot create connection. " + e.getMessage(), e);
        }
    }
}

Related

1. addCustomHeaders(HttpURLConnection conn, Map headers)
2. addHeader(HttpURLConnection conn, String headerName, String value)
3. addHeadersToRequest(HttpURLConnection request, Map headers)
4. copyHttpHeaders(@Nonnull final HttpURLConnection aConn, @Nonnull final InternetHeaders aHeaders)
5. delete(String url, Map headers)
6. doDelete(URL endpoint, Map headers)
7. dumpHeaders(HttpURLConnection conn)
8. dumpHeaders(HttpURLConnection conn, PrintStream out)