Android网络请求域名是指在Android应用程序中,通过网络请求与特定域名进行通信的过程。域名是互联网上用于标识主机或服务的易于记忆的名称,例如www.example.com
。网络请求通常涉及HTTP/HTTPS协议,用于从服务器获取数据或向服务器发送数据。
UnknownHostException
原因:域名解析失败,可能是由于DNS配置错误、网络连接问题或域名不存在。
解决方法:
try {
InetAddress address = InetAddress.getByName("www.example.com");
System.out.println("IP Address: " + address.getHostAddress());
} catch (UnknownHostException e) {
e.printStackTrace();
}
原因:网络延迟、服务器响应慢或请求配置不当。
解决方法:
OkHttpClient client = new OkHttpClient.Builder()
.connectTimeout(30, TimeUnit.SECONDS)
.readTimeout(30, TimeUnit.SECONDS)
.build();
Request request = new Request.Builder()
.url("https://www.example.com")
.build();
Response response = client.newCall(request).execute();
原因:SSL证书验证失败,可能是由于证书过期、证书不受信任或配置错误。
解决方法:
TrustManager[] trustAllCerts = new TrustManager[]{
new X509TrustManager() {
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[0];
}
public void checkClientTrusted(X509Certificate[] certs, String authType) {}
public void checkServerTrusted(X509Certificate[] certs, String authType) {}
}
};
SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, trustAllCerts, new SecureRandom());
SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
OkHttpClient client = new OkHttpClient.Builder()
.sslSocketFactory(sslSocketFactory, (X509TrustManager) trustAllCerts[0])
.hostnameVerifier((hostname, session) -> true)
.build();
希望这些信息对你有所帮助!如果有更多问题,请随时提问。
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