java https post

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

public class HttpsUtil {

    private static class TrustAnyTrustManager implements X509TrustManager {

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

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

        public X509Certificate[] getAcceptedIssuers() {
            return new X509Certificate[] {};
        }
    }

    private static class TrustAnyHostnameVerifier implements HostnameVerifier {
        public boolean verify(String hostname, SSLSession session) {
            return true;
        }
    }

    /**
    * post方式请求服务器(https协议)
    * @param url
    *            请求地址
    * @param content
    *            参数
    * @param charset
    *            编码
    * @return
    * @throws NoSuchAlgorithmException
    * @throws KeyManagementException
    * @throws IOException
    */
    public static byte[] post(String url, String content, String charset) throws NoSuchAlgorithmException,
            KeyManagementException, IOException {
        SSLContext sc = SSLContext.getInstance("SSL");
        sc.init(null, new TrustManager[] { new TrustAnyTrustManager() }, new java.security.SecureRandom());

        URL console = new URL(url);
        HttpsURLConnection conn = (HttpsURLConnection) console.openConnection();
        conn.setSSLSocketFactory(sc.getSocketFactory());
        conn.setHostnameVerifier(new TrustAnyHostnameVerifier());
        conn.setDoOutput(true);
        conn.connect();
        DataOutputStream out = new DataOutputStream(conn.getOutputStream());
        out.write(content.getBytes(charset));
        // 刷新、关闭
        out.flush();
        out.close();
        InputStream is = conn.getInputStream();
        if (is != null) {
            ByteArrayOutputStream outStream = new ByteArrayOutputStream();
            byte[] buffer = new byte[1024];
            int len = 0;
            while ((len = is.read(buffer)) != -1) {
                outStream.write(buffer, 0, len);
            }
            is.close();
            return outStream.toByteArray();
        }
        return null;
    }

}