/** *  * @param url 这个只支持http地址，不支持https * @param request * @return */public static String sendMessage(String url, HttpServletRequest request) {   CloseableHttpClient httpClient = HttpClientBuilder.create().build();   HttpGet httpGet = new HttpGet(url);  //url:请求地址 get请求   httpGet.addHeader(HTTP.CONTENT_TYPE, "application/json;charset=UTF-8");   try {      HttpResponse res = httpClient.execute(httpGet);      String rtn = EntityUtils.toString(res.getEntity());      return rtn;   } catch (Exception e) {      e.printStackTrace();   } finally {      httpGet.releaseConnection();   }   return null;} /** *  * * @param url  支持https格式 get请求 * @return  返回json格式 */public static JSONObject getHttps(String hsUrl) {    try {        URL url;        url = new URL(hsUrl);        HttpsURLConnection con = (HttpsURLConnection) url.openConnection();        X509TrustManager xtm = new X509TrustManager() {            @Override            public X509Certificate[] getAcceptedIssuers() {                // TODO Auto-generated method stub                return null;            }            @Override            public void checkServerTrusted(X509Certificate[] arg0, String arg1)                    throws CertificateException {                // TODO Auto-generated method stub            }            @Override            public void checkClientTrusted(X509Certificate[] arg0, String arg1)                    throws CertificateException {                // TODO Auto-generated method stub            }        };        TrustManager[] tm = {xtm};        SSLContext ctx = SSLContext.getInstance("TLS");        ctx.init(null, tm, null);        con.setSSLSocketFactory(ctx.getSocketFactory());        con.setHostnameVerifier(new HostnameVerifier() {            @Override            public boolean verify(String arg0, SSLSession arg1) {                return true;            }        });        InputStream inStream = con.getInputStream();        ByteArrayOutputStream outStream = new ByteArrayOutputStream();        byte[] buffer = new byte[1024];        int len = 0;        while ((len = inStream.read(buffer)) != -1) {            outStream.write(buffer, 0, len);        }        byte[] b = outStream.toByteArray();//网页的二进制数据        outStream.close();        inStream.close();        String rtn = new String(b, "utf-8");        if (StringUtils.isNotBlank(rtn)) {            JSONObject object = JSONObject.fromObject(rtn);            return object;        }    } catch (Exception e) {        e.printStackTrace();    }    return null;}