【问题一】:Android 6.0以上使用Apache HTTP 网络请求和绕过Https证书请求网络?
问题描述:之前开发的插件使用网络请求用的是 Apache HTTP 的HttpClient进行网络请求,但是在Android 6.0以上 Google 规定:
Android 6.0 版移除了对 Apache HTTP 客户端的支持。如果您的应用使用该客户端,并以 Android 2.3(API 级别 9)或更高版本为目标平台,请改用 HttpURLConnection 类。此 API 效率更高,因为它可以通过透明压缩和响应缓存减少网络使用,并可最大限度降低耗电量。要继续使用 Apache HTTP API,您必须先在 build.gradle 文件中声明以下编译时依赖项:
android {
useLibrary 'org.apache.http.legacy'
}
所以在Android 6.0以上使用需要在 build.gradle 加上以上代码,但是在Android 7.0上使用 https网络请求,请求不到数据,经过查看log和问题排查需要在httpclinet请求的时候需要忽略https证书
解决方法: 请求的时候添加忽略https证书,答案网上找了好多答案,要不就是缺少jar依赖,要不就是方法参数不匹配,终于找到一个拿下来就能用的代码;
/**
自定义 EasySSLSocketFactory 继承 SSLSocketFactory 并重写相应的方法
**/
public static class EasySSLSocketFactory extends SSLSocketFactory {
SSLContext sslContext = SSLContext.getInstance("TLS");
public EasySSLSocketFactory(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);
}
@Override
public Socket createSocket(Socket socket, String host, int port, boolean autoClose)
throws IOException, UnknownHostException {
return sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
}
@Override
public Socket createSocket() throws IOException {
return sslContext.getSocketFactory().createSocket();
}
}
/**
* 获取HttpClient
*
* @return
*/
public static DefaultHttpClient getNewHttpClient() {
try {
KeyStore trustStore = null;
EasySSLSocketFactory sf = null;
trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
trustStore.load(null, null);
sf = new EasySSLSocketFactory(trustStore);
sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
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) {
return new DefaultHttpClient();
}
}
// 调用
HttpClient client = getNewHttpClient();