HttpClient忽略使用者認證驗證的方法

    程式中出了這樣的異常：javax.net.ssl.SSLException: hostname in certificate didn't match。異常發生在這行代碼上：httpClient.execute(httpGet);
初步判斷是認證的問題，準備採用忽略認證的方法解決，但在網上找了半天都沒找到靠譜的代碼解決，最後還是自己琢磨解決了。
    得到一個教訓，網上找答案是不靠譜的，因為具體問題需要具體分析，別人的方法不一定能解決你的，一定要自己思考，自己琢磨。在網上最重要的是能找到問題的解決思路，最後還是要自己去思考解決自己問題的具體代碼實現。
    最後吐槽一句，網上的解決方案大多都是廢話一籮筐，半天說不到核心解決方案上。

核心思路：繼承SSLSocketFactory，重寫一個驗證認證時總是返回true的UnVerifySocketFactory，
 * new一個這樣的UnVerifySocketFactory對象設定到httpclient上就行了.代碼如下：

import java.io.IOException;import java.net.Socket;import java.net.UnknownHostException;import java.security.KeyManagementException;import java.security.KeyStore;import java.security.KeyStoreException;import java.security.NoSuchAlgorithmException;import java.security.UnrecoverableKeyException;import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import javax.net.ssl.SSLContext;import javax.net.ssl.SSLException;import javax.net.ssl.SSLSession;import javax.net.ssl.SSLSocket;import javax.net.ssl.TrustManager;import javax.net.ssl.X509TrustManager;import org.apache.http.HttpVersion;import org.apache.http.client.HttpClient;import org.apache.http.conn.ClientConnectionManager;import org.apache.http.conn.scheme.PlainSocketFactory;import org.apache.http.conn.scheme.Scheme;import org.apache.http.conn.scheme.SchemeRegistry;import org.apache.http.conn.ssl.SSLSocketFactory;import org.apache.http.conn.ssl.X509HostnameVerifier;import org.apache.http.impl.client.DefaultHttpClient;import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;import org.apache.http.params.BasicHttpParams;import org.apache.http.params.HttpParams;import org.apache.http.params.HttpProtocolParams;import org.apache.http.protocol.HTTP;import android.util.Log;/** * 工具類：建立一個忽略使用者認證驗證的httpClient執行個體 * @date 2015-02-13 * @author Barry */public class CertificateValidationIgnored {public static HttpClient getNoCertificateHttpClient(String url){return getCertificateValidationIgnoredHttpClient();}private static HttpClient getCertificateValidationIgnoredHttpClient() {          try {              KeyStore trustStore = KeyStore.getInstance(KeyStore                      .getDefaultType());              trustStore.load(null, null);              //核心代碼，建立一個UnVerifySocketFactory對象，驗證認證時總是返回true            SSLSocketFactory sf = new UnVerifySocketFactory(trustStore);                        HttpParams params = new BasicHttpParams();              HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);              HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);              SchemeRegistry registry = new SchemeRegistry();              registry.register(new Scheme("http", PlainSocketFactory                      .getSocketFactory(), 80));              registry.register(new Scheme("https", sf, 443));              ClientConnectionManager ccm = new ThreadSafeClientConnManager(                      params, registry);              return new DefaultHttpClient(ccm, params);          } catch (Exception e) {          Log.d("CertificateValidationIgnored", "建立忽略使用者認證的HttpClient對象失敗，嘗試建立普通HttpClient對象");        e.printStackTrace();            return new DefaultHttpClient();          }      }  /** * 核心類 * UnVerifySocketFactory:一個驗證認證時總是返回true的SSLSocketFactory的子類 */private static X509HostnameVerifier ignoreVerifier;private static class UnVerifySocketFactory extends SSLSocketFactory {SSLContext sslContext = SSLContext.getInstance("TLS");public UnVerifySocketFactory(KeyStore truststore)throws NoSuchAlgorithmException, KeyManagementException,KeyStoreException, UnrecoverableKeyException {super(truststore);TrustManager tm = new X509TrustManager() {public void checkClientTrusted(X509Certificate[] chain,String authType) throws CertificateException {}public void checkServerTrusted(X509Certificate[] chain,String authType) throws CertificateException {}public X509Certificate[] getAcceptedIssuers() {return null;}};sslContext.init(null, new TrustManager[] { tm }, null);}@Overridepublic Socket createSocket(Socket socket, String host, int port,boolean autoClose) throws IOException, UnknownHostException {return sslContext.getSocketFactory().createSocket(socket, host,port, autoClose);}//核心代碼@Overridepublic void setHostnameVerifier(X509HostnameVerifier hostnameVerifier) {// TODO Auto-generated method stubignoreVerifier = new X509HostnameVerifier() {@Overridepublic void verify(String arg0, String[] arg1, String[] arg2)throws SSLException {}@Overridepublic void verify(String arg0, X509Certificate arg1)throws SSLException {}@Overridepublic void verify(String arg0, SSLSocket arg1)throws IOException {}//最最核心代碼@Overridepublic boolean verify(String arg0, SSLSession arg1) {return true;}};super.setHostnameVerifier(ignoreVerifier);}@Overridepublic X509HostnameVerifier getHostnameVerifier() {return ignoreVerifier;}@Overridepublic Socket createSocket() throws IOException {return sslContext.getSocketFactory().createSocket();}}}