httpclient4.3x的ssl請求工具類

/**


post提交工具類
*
@param url     訪問的url
@param map     post參數
@param charset 編碼
@return 響應結束的返回字符串
*/
public static String doPost(String url, Map<String, String> map, String charset) throws Exception {
 HttpClient httpClient = null;
 HttpPost httpPost = null;
 String result = null;
 httpPost = new HttpPost(url);
 SSLContext ctx = SSLContext.getInstance("TLS");
 X509TrustManager tm = new X509TrustManager() {

 @Override
 public void checkClientTrusted(X509Certificate[] chain,
                                String authType) throws CertificateException {
 }

 @Override
 public void checkServerTrusted(X509Certificate[] chain,
                                String authType) throws CertificateException {
 }

 @Override
 public X509Certificate[] getAcceptedIssuers() {
     return null;
 }

};
 ctx.init(null, new TrustManager[]{tm}, null);
 SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(

     ctx,
     SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

httpClient = HttpClients.custom().setSSLSocketFactory(sslsf).build();
 //設置參數
 List<NameValuePair> list = new ArrayList<NameValuePair>();
 Iterator iterator = map.entrySet().iterator();
 while (iterator.hasNext()) {

 Entry<String, String> elem = (Entry<String, String>) iterator.next();
 list.add(new BasicNameValuePair(elem.getKey(), elem.getValue()));

}
 if (list.size() > 0) {

 UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, charset);
 httpPost.setEntity(entity);

}
 HttpResponse response = httpClient.execute(httpPost);
 if (response != null) {

 HttpEntity resEntity = response.getEntity();
 if (resEntity != null) {
     result = EntityUtils.toString(resEntity, charset);
 }

}
 return result;


}</pre>