android 部分网址 https连接不上(Not trusted server certificate)

问题：android连接部分https网站时会发生连接错误，报错信息类似： Not trusted server certificate

经过测试android4.1之后版本的都有类似问题

解决方法：

在自己封装的http类中添加以下代码，同时在http连接时使用HttpURLConnection connection = (HttpURLConnection) url.openConnection();即可解决问题

// always verify the host - do not check for certificate

    final static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier(){
        @Override
        public boolean verify(String hostname, SSLSession session) {
            DebugLog.logd("Approving certificate for " + hostname);
            return true;
        }
    };

    /**
      * Trust every server - dont check for any certificate
      */
    private static void trustAllHosts()
    {
        // Create a trust manager that does not validate certificate chains
        TrustManager[] trustAllCerts = new TrustManager[]{
            new X509TrustManager(){

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

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

                @Override
                public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                    return new java.security.cert.X509Certificate[] {};
                }

            }
        };

        //Install the all-trusting trust manager
        try
        {
             HttpsURLConnection.setDefaultHostnameVerifier(DO_NOT_VERIFY);
             SSLContext sc = SSLContext.getInstance("TLS");
             sc.init(null, trustAllCerts, new java.security.SecureRandom());
             HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
    static{
        DebugLog.logd("trustAllHosts");
        trustAllHosts();

}

参考：http://stackoverflow.com/questions/2012497/accepting-a-certificate-for-https-on-android

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