【問題一】:Android 6.0以上使用Apache HTTP 網絡請求和繞過Https證書請求網絡?
問題描述:之前開發的插件使用網絡請求用的是 Apache HTTP 的HttpClient進行網絡請求,但是在Android 6.0以上 Google 規定:
Android 6.0 版移除了對 Apache HTTP 客戶端的支持。如果您的應用使用該客戶端,並以 Android 2.3(API 級別 9)或更高版本爲目標平臺,請改用 HttpURLConnection 類。此 API 效率更高,因爲它可以通過透明壓縮和響應緩存減少網絡使用,並可最大限度降低耗電量。要繼續使用 Apache HTTP API,您必須先在 build.gradle 文件中聲明以下編譯時依賴項:
android {
useLibrary 'org.apache.http.legacy'
}
所以在Android 6.0以上使用需要在 build.gradle 加上以上代碼,但是在Android 7.0上使用 https網絡請求,請求不到數據,經過查看log和問題排查需要在httpclinet請求的時候需要忽略https證書
解決方法: 請求的時候添加忽略https證書,答案網上找了好多答案,要不就是缺少jar依賴,要不就是方法參數不匹配,終於找到一個拿下來就能用的代碼;
/**
自定義 EasySSLSocketFactory 繼承 SSLSocketFactory 並重寫相應的方法
**/
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();
}
}
/**
* 獲取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();
}
}
// 調用
HttpClient client = getNewHttpClient();