[GO] Java implementation HTTPS request

Package Com.lichmama.test.util;import Java.io.bytearrayoutputstream;import Java.io.ioexception;import Java.io.inputstream;import Java.io.outputstream;import Java.net.url;import java.security.KeyManagementException; Import Java.security.nosuchalgorithmexception;import Java.security.securerandom;import Java.security.cert.certificateexception;import Java.security.cert.x509certificate;import Javax.net.ssl.hostnameverifier;import Javax.net.ssl.httpsurlconnection;import Javax.net.ssl.KeyManager;import Javax.net.ssl.sslcontext;import Javax.net.ssl.sslsession;import Javax.net.ssl.sslsocketfactory;import Javax.net.ssl.trustmanager;import Javax.net.ssl.x509trustmanager;public class Httpsutil {private static final class De Faulttrustmanager implements X509trustmanager {@Override public void checkclienttrusted (x509certificate[] C Hain, String authtype) throws certificateexception {} @Override public void checkservertrusted (x509c Ertificate[] chain, String authtype) throws Certificateexception {} @Override public x509certificate[] Getacceptedissuers () {        return null; }} private static Httpsurlconnection gethttpsurlconnection (string uri, String method) throws IOException {S        Slcontext CTX = null;            try {ctx = sslcontext.getinstance ("TLS");        Ctx.init (New keymanager[0], new trustmanager[] {new Defaulttrustmanager ()}, New SecureRandom ());        } catch (Keymanagementexception e) {e.printstacktrace ();        } catch (NoSuchAlgorithmException e) {e.printstacktrace ();        } sslsocketfactory SSF = Ctx.getsocketfactory ();        URL url = new URL (URI);        Httpsurlconnection httpsconn = (httpsurlconnection) url.openconnection ();        Httpsconn.setsslsocketfactory (SSF); Httpsconn.sethostnameverifier (New Hostnameverifier () {@Override public boolean verify (String arg0, SSLsession arg1) {RETUrn true;        }        });        Httpsconn.setrequestmethod (method);        Httpsconn.setdoinput (TRUE);        Httpsconn.setdooutput (TRUE);    return httpsconn;  } private static byte[] Getbytesfromstream (InputStream is) throws IOException {Bytearrayoutputstream BAOs = new        Bytearrayoutputstream ();        Byte[] kb = new byte[1024];        int Len;        while (len = Is.read (KB))! =-1) {Baos.write (KB, 0, Len);        } byte[] bytes = Baos.tobytearray ();        Baos.close ();        Is.close ();    return bytes; } private static void Setbytestostream (OutputStream os, byte[] bytes) throws IOException {Bytearrayinputstream        Bais = new Bytearrayinputstream (bytes);        Byte[] kb = new byte[1024];        int Len;        while (len = Bais.read (KB))! =-1) {Os.write (KB, 0, Len);        } os.flush ();        Os.close ();    Bais.close ();      } public static byte[] Doget (String uri) throws IOException {  Httpsurlconnection httpsconn = gethttpsurlconnection (URI, "GET");    Return Getbytesfromstream (Httpsconn.getinputstream ()); } public static byte[] DoPost (string uri, String data) throws IOException {httpsurlconnection Httpsconn = getht        Tpsurlconnection (URI, "POST");        Setbytestostream (Httpsconn.getoutputstream (), data.getbytes ());    Return Getbytesfromstream (Httpsconn.getinputstream ()); }}

Download a file (Bing today) under test:

public class Testhttps {public        static void Main (string[] args) throws IOException {        String uri = "https://cn.bing . com/hpwp/356677bea977a9aa166a92ab94848f17 ";        byte[] bytes = Httpsutil.doget (URI);        FileOutputStream fos = new FileOutputStream ("d:/bing.picture-of-day.jpg");        Fos.write (bytes);        Fos.close ();        System.out.println ("done!");}    }

When using the above code in WebLogic, ClassCastException may appear, details and solutions to see the following links:

http://www.th7.cn/program/java/201511/688262.shtmlhttp://blog.csdn.net/arvinrong/article/details/7715334[

[GO] Java implementation HTTPS request