访问https接口

前言：
在android开发中，会涉及到安全比较高的业务，比如银行，网上交易等，这就涉及到https协议的交互
对于https 交互过程分两个阶段
1. 客户端获取服务器的证书，并验证证书的内容是否可信
2. 客户端和服务器端进行握手协议，并进行数据传输

对于https 交互过程，第一点，采用了网站可信的方式，如有需要验证域名和证书是否一致的，请自我扩展
实现的过程：
1）： 注册scheme of https
注意：
HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
如果需要验证，则，自己继承HostnameVerifier ，并实现接口。
2）：获取 httpClient 和 httpPost
3）：获取数据
下面是实现的源码，参数就是https路径：
public String GetData(String URL)
{
String returns="";

//Step One register scheme of https
HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;

SchemeRegistry registry = new SchemeRegistry();
SSLSocketFactory socketFactory = SSLSocketFactory.getSocketFactory();
socketFactory.setHostnameVerifier((X509HostnameVerifier) hostnameVerifier);
registry.register(new Scheme("https", socketFactory, 443));
registry.register(new Scheme("http",PlainSocketFactory.getSocketFactory (), 80));

//Step Two Get httpClient and httpPost

DefaultHttpClient client = new DefaultHttpClient();
SingleClientConnManager mgr = new SingleClientConnManager(client.getParams(), registry);
DefaultHttpClient httpClient = new DefaultHttpClient(mgr, client.getParams());
//------- Set verifier
HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);
// -------Example send http request
// final String url = "https://martinreichart.com/_tmpdata/login_valid.json";
HttpPost httpPost = new HttpPost(URL);

//Step Three Get Data
try {
HttpResponse response = httpClient.execute(httpPost);
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
// 解析返回的内容
returns = EntityUtils.toString(response.getEntity());
}
}
catch(Exception ex)
{

String aa =ex.toString();
}

return returns;
}