218 lines
8.7 KiB
Plaintext
218 lines
8.7 KiB
Plaintext
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package com.novelbook.android.utils;
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import android.content.Context;
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import android.util.Log;
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import com.novelbook.android.BuildConfig;
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import com.novelbook.android.MyApp;
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import java.io.File;
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import java.io.IOException;
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import java.net.URLDecoder;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.concurrent.TimeUnit;
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import io.reactivex.annotations.NonNull;
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import okhttp3.Cache;
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import okhttp3.CacheControl;
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import okhttp3.Interceptor;
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import okhttp3.OkHttpClient;
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import okhttp3.Request;
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import okhttp3.Response;
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import okhttp3.logging.HttpLoggingInterceptor;
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import retrofit2.Retrofit;
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import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
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import retrofit2.converter.gson.GsonConverterFactory;
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public class RetrofitFactory {
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private static final Object Object = new Object();
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/**
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* 缓存机制
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* 在响应请求之后在 data/data/<包名>/cache 下建立一个response 文件夹，保持缓存数据。
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* 这样我们就可以在请求的时候，如果判断到没有网络，自动读取缓存的数据。
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* 同样这也可以实现，在我们没有网络的情况下，重新打开App可以浏览的之前显示过的内容。
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* 也就是：判断网络，有网络，则从网络获取，并保存到缓存中，无网络，则从缓存中获取。
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* https://werb.github.io/2016/07/29/%E4%BD%BF%E7%94%A8Retrofit2+OkHttp3%E5%AE%9E%E7%8E%B0%E7%BC%93%E5%AD%98%E5%A4%84%E7%90%86/
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*/
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//这里是设置拦截器，供下面的函数调用，辅助作用。
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private static final Interceptor cacheControlInterceptor = new Interceptor() {
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@Override
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public Response intercept(Chain chain) throws IOException {
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Request request = chain.request();
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if (!NetWorkUtil.isNetworkConnected(MyApp.applicationContext)) {
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request = request.newBuilder().cacheControl(CacheControl.FORCE_CACHE).build();
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}
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Response originalResponse = chain.proceed(request);
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if (NetWorkUtil.isNetworkConnected(MyApp.applicationContext)) {
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// 有网络时 设置缓存为默认值
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String cacheControl = request.cacheControl().toString();
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return originalResponse.newBuilder()
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.header("Cache-Control", cacheControl)
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.removeHeader("Pragma") // 清除头信息，因为服务器如果不支持，会返回一些干扰信息，不清除下面无法生效
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.build();
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} else {
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// 无网络时 设置超时为1周
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int maxStale = 60 * 60 * 24 * 7;
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return originalResponse.newBuilder()
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.header("Cache-Control", "public, only-if-cached, max-stale=" + maxStale)
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.removeHeader("Pragma")
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.build();
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}
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}
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};
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private volatile static Retrofit retrofit;
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private static String baseUrl ="https://api.douban.com/v2/movie/";
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//这个人函数供外部调用，当请求数据时来调用
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@NonNull
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public static Retrofit getRetrofit() {
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synchronized (Object) {
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if (retrofit == null) {
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// 指定缓存路径,缓存大小 50Mb
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Cache cache = new Cache(new File(MyApp.applicationContext.getCacheDir(), "HttpCache"),1024 * 1024 * 50);
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// Cookie 持久化
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// ClearableCookieJar cookieJar = new PersistentCookieJar(new SetCookieCache(), new SharedPrefsCookiePersistor(MyApp.applicationContext));
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OkHttpClient.Builder builder = new OkHttpClient.Builder()
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// .cookieJar(cookieJar)
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.cache(cache)
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.addInterceptor(cacheControlInterceptor)
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.connectTimeout(10, TimeUnit.SECONDS)
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.readTimeout(15, TimeUnit.SECONDS)
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.writeTimeout(15, TimeUnit.SECONDS)
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.retryOnConnectionFailure(true);
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// Log 拦截器
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if (BuildConfig.DEBUG) {
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builder = initInterceptor(builder);
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}
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retrofit = new Retrofit.Builder()
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.baseUrl(baseUrl)
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.client(builder.build())
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.addConverterFactory(GsonConverterFactory.create())
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.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
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.build();
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}
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return retrofit;
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}
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}
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public static OkHttpClient.Builder initInterceptor(OkHttpClient.Builder builder){
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HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
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@Override
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public void log(String message) {
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try {
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String text = URLDecoder.decode(message, "utf-8");
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Log.e("OKHttp-----", text);
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} catch ( Exception e) {
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e.printStackTrace();
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Log.e("OKHttp-----", message);
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}
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}
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});
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interceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
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builder.addInterceptor(interceptor);
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// 添加公共参数拦截器
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/* BasicParamsInterceptor basicParamsInterceptor = new BasicParamsInterceptor.Builder()
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.addHeaderParam("userName","")//添加公共参数
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.addHeaderParam("device","")
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.build();
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builder.addInterceptor(basicParamsInterceptor);*/
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/* // 添加公共参数拦截器
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HttpCommonInterceptor commonInterceptor = new HttpCommonInterceptor.Builder()
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.addHeaderParams("paltform","android")
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.addHeaderParams("userToken","1234343434dfdfd3434")
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.addHeaderParams("userId","123445")
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.build();
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builder.addInterceptor(commonInterceptor);*/
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return builder;
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}
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}
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/*
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public class HttpCommonInterceptor implements Interceptor{
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private Map<string,string> mHeaderParamsMap = new HashMap<>();
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Map<string, string=""> queryParamsMap = new HashMap<>();
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Map<string, string=""> paramsMap = new HashMap<>();
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Map<string, string=""> headerParamsMap = new HashMap<>();
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List<string> headerLinesList = new ArrayList<>();
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public HttpCommonInterceptor() {
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}
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@Override
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public Response intercept(Chain chain) throws IOException {
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Log.d("HttpCommonInterceptor","add common params");
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Request oldRequest = chain.request();
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// Request request = chain.request();
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Headers.Builder headerBuilder = oldRequest.headers().newBuilder();
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Request.Builder requestBuilder = oldRequest.newBuilder();
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// 添加新的参数，添加到url 中
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*/
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/* HttpUrl.Builder authorizedUrlBuilder = oldRequest.url()
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.newBuilder()
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.scheme(oldRequest.url().scheme())
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.host(oldRequest.url().host());*//*
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if (headerParamsMap.size() > 0) {
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Iterator iterator = headerParamsMap.entrySet().iterator();
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while (iterator.hasNext()) {
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Map.Entry entry = (Map.Entry) iterator.next();
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headerBuilder.add((String) entry.getKey(), (String) entry.getValue());
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}
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}
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if (headerLinesList.size() > 0) {
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for (String line: headerLinesList) {
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headerBuilder.add(line);
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}
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requestBuilder.headers(headerBuilder.build());
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}
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// 新的请求
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//Request.Builder requestBuilder = oldRequest.newBuilder();
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requestBuilder.method(oldRequest.method(), oldRequest.body());
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//添加公共参数,添加到header中
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if(mHeaderParamsMap.size() > 0){
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for(Map.Entry<string,string> params:mHeaderParamsMap.entrySet()){
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requestBuilder.header(params.getKey(),params.getValue());
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}
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}
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// process post body inject
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if (paramsMap.size() > 0) {
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if (canInjectIntoBody(oldRequest)) {
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FormBody.Builder formBodyBuilder = new FormBody.Builder();
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for(Map.Entry<string, string=""> entry : paramsMap.entrySet()) {
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formBodyBuilder.add((String) entry.getKey(), (String) entry.getValue());
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}
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RequestBody formBody = formBodyBuilder.build();
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String postBodyString = bodyToString(oldRequest.body());
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postBodyString += ((postBodyString.length() > 0) ? "&" : "") + bodyToString(formBody);
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requestBuilder.post(RequestBody.create(MediaType.parse("application/x-www-form-urlencoded;charset=UTF-8"), postBodyString));
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}
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}
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Request newRequest = requestBuilder.build();
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return chain.proceed(newRequest);
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}*/
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