Android进阶(二)https请求No peer certificate的解决方法.

在做Android客户端通过https协议访问12306，并爬取数据时，出现了如下错误：

其中有一条错误提示是javax.net.ssl.SSLPeerUnverifiedException:Nopeercertificate的异常。现给出解决方法。

写了一个自定义类继承SSLSocketFactory：

importjava.io.IOException;

importjava.net.Socket;

importjava.net.UnknownHostException;

importjava.security.KeyManagementException;

importjava.security.KeyStore;

importjava.security.KeyStoreException;

importjava.security.NoSuchAlgorithmException;

importjava.security.UnrecoverableKeyException;

importjavax.net.ssl.SSLContext;

importjavax.net.ssl.TrustManager;

importjavax.net.ssl.X509TrustManager;

importorg.apache.http.conn.ssl.SSLSocketFactory;

publicclassSSLSocketFactoryExextendsSSLSocketFactory{

SSLContextsslContext=SSLContext.getInstance("TLS");

publicSSLSocketFactoryEx(KeyStoretruststore)

throwsNoSuchAlgorithmException,KeyManagementException,

KeyStoreException,UnrecoverableKeyException{

super(truststore);

TrustManagertm=newX509TrustManager(){

publicjava.security.cert.X509Certificate[]getAcceptedIssuers(){returnnull;}

@Override

publicvoidcheckClientTrusted(

java.security.cert.X509Certificate[]chain,StringauthType)

throwsjava.security.cert.CertificateException{}

@Override

publicvoidcheckServerTrusted(

java.security.cert.X509Certificate[]chain,StringauthType)

throwsjava.security.cert.CertificateException{}

};

sslContext.init(null,newTrustManager[]{tm},null);

}

@Override

publicSocketcreateSocket(Socketsocket,Stringhost,intport,booleanautoClose)throwsIOException,UnknownHostException{

returnsslContext.getSocketFactory().createSocket(socket,host,port,autoClose);

}

@Override

publicSocketcreateSocket()throwsIOException{

returnsslContext.getSocketFactory().createSocket();

}

再来看看如何做回调：

publicstaticHttpClientgetNewHttpClient(){

try{

KeyStoretrustStore=KeyStore.getInstance(KeyStore.getDefaultType());

trustStore.load(null,null);

SSLSocketFactorysf=newSSLSocketFactoryEx(trustStore);

sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

HttpParamsparams=newBasicHttpParams();

HttpProtocolParams.setVersion(params,HttpVersion.HTTP_1_1);

HttpProtocolParams.setContentCharset(params,HTTP.UTF_8);

SchemeRegistryregistry=newSchemeRegistry();

registry.register(newScheme("http",PlainSocketFactory.getSocketFactory(),80));

registry.register(newScheme("https",sf,443));

ClientConnectionManagerccm=newThreadSafeClientConnManager(params,registry);

returnnewDefaultHttpClient(ccm,params);

}catch(Exceptione){

returnnewDefaultHttpClient();

}

现在就可以拿这个HTTPClient去请求数据了。

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