Android： HTTPS （SSL） connection using HttpsURLConnection

我有2个应用程序，一个是Servlet / Tomcat服务器，另一个是Android应用程序。

我想使用 HttpURLConnection 在两者之间发送和接收 XML。

法典：

    private String sendPostRequest(String requeststring) {

    DataInputStream dis = null;
    StringBuffer messagebuffer = new StringBuffer();

    HttpURLConnection urlConnection = null;

    try {
        URL url = new URL(this.getServerURL());

        urlConnection = (HttpURLConnection) url.openConnection();           

        urlConnection.setDoOutput(true);

        urlConnection.setRequestMethod("POST");

        OutputStream out = new BufferedOutputStream(urlConnection.getOutputStream());

        out.write(requeststring.getBytes());

        out.flush();

        InputStream in = new BufferedInputStream(urlConnection.getInputStream());

        dis = new DataInputStream(in);

        int ch;

        long len = urlConnection.getContentLength();

        if (len != -1) {

            for (int i = 0; i < len; i++)

                if ((ch = dis.read()) != -1) {

                    messagebuffer.append((char) ch);
                }
        } else {

            while ((ch = dis.read()) != -1)
                messagebuffer.append((char) ch);
        }

        dis.close();

    } catch (Exception e) {

        e.printStackTrace();

    } finally {

        urlConnection.disconnect();
    }

    return messagebuffer.toString();
}

现在，我需要使用SSL来发送XL以确保安全。

首先，我使用 Java Keytool 生成 .keystore 文件。

Keytool  -keygen -alias tomcat -keyalg RSA

然后我把XML代码放在服务器上.xml Tomcat的文件来使用SSL

<Connector 
port="8443" protocol="HTTP/1.1" SSLEnabled="true"
maxThreads="150" scheme="https" secure="true"
keystoreFile="c:/Documents and Settings/MyUser/.keystore"
keystorePass="password"
clientAuth="false" sslProtocol="TLS" 
/>

然后，我将其更改为HttpURLConnection for HttpsURLConnection

    private String sendPostRequest(String requeststring) {

    DataInputStream dis = null;
    StringBuffer messagebuffer = new StringBuffer();

    HttpURLConnection urlConnection = null;

    //Conexion por HTTPS
    HttpsURLConnection urlHttpsConnection = null;

    try {
        URL url = new URL(this.getServerURL());

        //urlConnection = (HttpURLConnection) url.openConnection();         

        //Si necesito usar HTTPS
        if (url.getProtocol().toLowerCase().equals("https")) {

            trustAllHosts();

            //Creo la Conexion
            urlHttpsConnection = (HttpsURLConnection) url.openConnection();

            //Seteo la verificacion para que NO verifique nada!!
            urlHttpsConnection.setHostnameVerifier(DO_NOT_VERIFY);

            //Asigno a la otra variable para usar simpre la mism
            urlConnection = urlHttpsConnection;

        } else {

            urlConnection = (HttpURLConnection) url.openConnection();
        }

//Do the same like up

并将 trustAllHosts 方法添加到 Trust 每个服务器（不检查任何证书）

private static void trustAllHosts() {

    X509TrustManager easyTrustManager = new X509TrustManager() {

        public void checkClientTrusted(
                X509Certificate[] chain,
                String authType) throws CertificateException {
            // Oh, I am easy!
        }

        public void checkServerTrusted(
                X509Certificate[] chain,
                String authType) throws CertificateException {
            // Oh, I am easy!
        }

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

    };

    // Create a trust manager that does not validate certificate chains
    TrustManager[] trustAllCerts = new TrustManager[] {easyTrustManager};

    // Install the all-trusting trust manager
    try {
        SSLContext sc = SSLContext.getInstance("TLS");

        sc.init(null, trustAllCerts, new java.security.SecureRandom());

        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());

    } catch (Exception e) {
            e.printStackTrace();
    }
}

这些更改效果非常好，但我不想信任每个服务器。我想使用我的密钥库文件来验证连接并以正确的方式使用 SSL。我在互联网上阅读了很多内容，并做了很多测试，但我不明白我必须做什么以及如何去做。

有人可以帮助我吗？

谢谢

抱歉我的英语不好

-------------------------更新日期 2011/08/24-------------------------------------------------

好吧，我还在努力。我制作了一个新方法来设置密钥库，输入流等

该方法如下所示：

private static void trustIFNetServer() {

    try {
        TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());

        KeyStore ks = KeyStore.getInstance("BKS");

        InputStream in = context.getResources().openRawResource(R.raw.mykeystore);

        String keyPassword = "password"; 

        ks.load(in, keyPassword.toCharArray());

        in.close();

        tmf.init(ks);

        TrustManager[] tms = tmf.getTrustManagers();    

        SSLContext sc = SSLContext.getInstance("TLS");

    sc.init(null, tms, new java.security.SecureRandom());

    } catch (Exception e) {
    e.printStackTrace();
    }
}

首先，我在密钥和证书方面遇到了很多问题，但现在它正在工作（我认为是这样）

我现在的问题是超时异常。我不知道为什么会生成它。我认为这是数据写入的问题，但我还不能解决。

有什么想法吗？