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preface

Simply record the process of integrating aliyun HTTPDNS service

What is a HTTPDNS

HTTPDNS is a domain name resolution service for multiple applications (mobile apps and PC clients). It features anti-hijacking, precise scheduling, and real-time resolution.

The above is from aliyun HTTPDNS document.

Access to the process

The service

HTTPDNS is a service provided by the mobile development platform. Please refer to EMAS Quick Start service.

  1. After opening the service, enter the console and click Add Product, as shown in the figure

  1. After the product is added, click Add Application, as shown in the picture

  2. After adding the app, click the app you just added

  3. Check the Account ID, which will be used later to configure DNS

  4. Add a domain name to the domain name list

Access to the Android SDK,

  1. Add the Maven repository address to the build.gradle file in the project root directory
allprojects {
    repositories {
        maven {
            url 'http://maven.aliyun.com/nexus/content/repositories/releases/'}}}Copy the code
  1. Add dependencies in build.gradle under the module that needs to import the HTTPDNS service
dependencies {
    compile ('com. Aliyun. Ams: alicloud - android - HTTPDNS: 1.3.3 @ aar') {
        transitive true}}Copy the code

An error message is displayed after the project is synchronized according to the previous official documents

Could not find com.aliyun.ams: alicloud-Android-utdid :1.1.5.4. Searched in the following locations: - http://maven.aliyun.com/nexus/content/repositories/releases/com/aliyun/ams/alicloud-android-utdid/1.1.5.4/alicloud-andro Id - utdid - 1.1.5.4. Pom - https://dl.google.com/dl/android/maven2/com/aliyun/ams/alicloud-android-utdid/1.1.5.4/alicloud-android-utdid-1.1.5.4.pom Required - https://jcenter.bintray.com/com/aliyun/ams/alicloud-android-utdid/1.1.5.4/alicloud-android-utdid-1.1.5.4.pom Ams: alicloud-Android-httpdns :1.3.3 > com.aliyun.ams: alicloud-Android-beacon :1.0.4.3Copy the code

Modify the following

implementation('com. Aliyun. Ams: alicloud - android - HTTPDNS: 1.3.3 @ aar') {
    transitive true
    exclude group: 'com.aliyun.ams', module: 'alicloud-android-utdid'
}
implementation 'com. Aliyun. Ams: alicloud - android - utdid: 1.1.5.3'
Copy the code

  1. Retrofit and Gson were introduced

    Increased reliance on

    implementation 'com. Squareup. Retrofit2: retrofit: 2.3.0'
implementation 'com. Squareup. Retrofit2: converter - gson: 2.3.0'
implementation 'com. Google. Code. Gson: gson: 2.8.6'
Copy the code

  2. Configure DNS

    Create a new class that inherits Dns

    public class AliDns implements Dns {

    private HttpDnsService httpDns;

    public AliDns(Context context) {
        // Pass in account_id, which is generated when an application is added to the HTTPDNS console
        httpDns = HttpDns.getService(context, "account_id");
    }

    @Override
    public List<InetAddress> lookup(String hostname) throws UnknownHostException {
        // Obtain the IP address through the asynchronous parsing interface
        String ip = httpDns.getIpByHostAsync(hostname);
        / / Android9.0 system and later, HTTPS requests can't directly access, convenience, directly in the AndroidManifest. XML configuration android: usesCleartextTraffic = "true"
        if(ip ! =null) {
            // If the IP address is not null, the network request is directly made using the IP address
            Log.e("AliDns"."ip:" + ip);
            List<InetAddress> inetAddresses = Arrays.asList(InetAddress.getAllByName(ip));
            return inetAddresses;
        }
        // If null is returned, the system DNS resolves the domain name
        returnDns.SYSTEM.lookup(hostname); }}Copy the code

    Set the DNS for OkHttpClient

    OkHttpClient client = new OkHttpClient.Builder().dns(new AliDns(getApplicationContext())).build();
Copy the code

  3. Call request

    Retrofit retrofit = new Retrofit.Builder().client(client).baseUrl("Domain name").addConverterFactory(GsonConverterFactory.create()).build();
Api api = retrofit.create(Api.class);
Call<Bean> call = api.getBanner();
call.enqueue(new Callback<Bean>() {
    @Override
    public void onResponse(Call<Bean> call, Response<Bean> response) {
        if(! response.isSuccessful()) { tv.setText("Request failed, error code :" + response.code());
            return;
    	}
        Bean bean = response.body();
        tv.setText(bean.toString());
    }

    @Override
    public void onFailure(Call<Bean> call, Throwable t) { tv.setText(t.getMessage()); }});Copy the code

The source code

Github.com/milovetingt…