前言
RxJava2与Retrofit2是老搭档了，之前写了一篇《RxJava和Retrofit2的统一处理单个请求》，是用的Rxjava1.0，本次使用Rxjava2.0与Retrofit2进行封装，一样整洁、简单、实用。Rxjava2相比Rxjava1优化和改动不少了东西，网上有很多大神写的文章，这里就不粘贴复制了。封装的过程有什么问题、疑问，请在下方留言。
下面话不多说了，来一起看看详细的介绍吧
封装教程如下：
核心网络请求：
package com.lin.netrequestdemo.data;import android.util.Log;import io.reactivex.Observable;import io.reactivex.android.schedulers.AndroidSchedulers;import io.reactivex.disposables.Disposable;import io.reactivex.functions.Consumer;import io.reactivex.functions.Function;import io.reactivex.schedulers.Schedulers;public class RxNet { /** * 统一处理单个请求 * * @param observable * @param callBack * @param <T> */ public static <T> Disposable request(Observable<BaseResponse<T>> observable, final RxNetCallBack<T> callBack) { return observable.subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .onErrorReturn(new Function<Throwable, BaseResponse<T>>() { @Override public BaseResponse<T> apply(Throwable throwable) { Log.e("LinNetError", throwable.getMessage()); callBack.onFailure(ExceptionHandle.handleException(throwable)); return null; } }) .subscribe(new Consumer<BaseResponse<T>>() { @Override public void accept(BaseResponse<T> tBaseResponse) { if (tBaseResponse.getCode().equals("200")) { callBack.onSuccess(tBaseResponse.getData()); } else { callBack.onFailure(tBaseResponse.getMsg()); } } }, new Consumer<Throwable>() { @Override public void accept(Throwable throwable) { Log.e("LinNetError", "单个请求的错误" + throwable.getMessage()); } }); } /** * 统一处理单个请求 * 返回数据没有body */ public static Disposable requestWithoutBody(Observable<BaseResponse> observable, final RxNetCallBack<String> callBack) { return observable.subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .onErrorReturn(new Function<Throwable, BaseResponse>() { @Override public BaseResponse apply(Throwable throwable) { Log.v("LinNetError", throwable.getMessage()); callBack.onFailure(ExceptionHandle.handleException(throwable)); return null; } }) .subscribe(new Consumer<BaseResponse>() { @Override public void accept(BaseResponse baseResponse) { if (baseResponse.getCode().equals("200")) { callBack.onSuccess(baseResponse.getMsg()); } else { callBack.onFailure(baseResponse.getMsg()); } } }, new Consumer<Throwable>() { @Override public void accept(Throwable throwable) { Log.v("LinNetError", "单个请求的错误:没有body" + throwable.getMessage()); } }); }} 回调就是普通的泛型的回调
package com.lin.netrequestdemo.data;public interface RxNetCallBack<T> { /** * 数据请求成功 * * @param data 请求到的数据 */ void onSuccess(T data); /** * 数据请求失败 */ void onFailure(String msg);} 错误异常处理（可能不全）：
package com.lin.netrequestdemo.data;import android.net.ParseException;import com.google.gson.JsonParseException;import org.apache.http.conn.ConnectTimeoutException;import org.json.JSONException;import java.net.ConnectException;import retrofit2.HttpException;public class ExceptionHandle { private static final int UNAUTHORIZED = 401; private static final int FORBIDDEN = 403; private static final int NOT_FOUND = 404; private static final int REQUEST_TIMEOUT = 408; private static final int INTERNAL_SERVER_ERROR = 500; private static final int BAD_GATEWAY = 502; private static final int SERVICE_UNAVAILABLE = 503; private static final int GATEWAY_TIMEOUT = 504; public static String handleException(Throwable e) { String errorMsg; if (e instanceof HttpException) { HttpException httpException = (HttpException) e; switch (httpException.code()) { case UNAUTHORIZED: case FORBIDDEN: case NOT_FOUND: case REQUEST_TIMEOUT: case GATEWAY_TIMEOUT: case INTERNAL_SERVER_ERROR: case BAD_GATEWAY: case SERVICE_UNAVAILABLE: default: errorMsg = "网络错误"; break; } return errorMsg + ":" + httpException.code(); } else if (e instanceof JsonParseException || e instanceof JSONException || e instanceof ParseException) { return "解析错误"; } else if (e instanceof ConnectException) { return "连接失败"; } else if (e instanceof javax.net.ssl.SSLHandshakeException) { return "证书验证失败"; } else if (e instanceof ConnectTimeoutException) { return "连接超时"; } else if (e instanceof java.net.SocketTimeoutException) { return "连接超时"; } else { return "未知错误"; } }} 然后就是ApiManager：
package com.lin.netrequestdemo.data.api;import android.util.Log;import com.lin.netrequestdemo.data.AppConstants;import java.util.concurrent.TimeUnit;import okhttp3.OkHttpClient;import okhttp3.logging.HttpLoggingInterceptor;import retrofit2.Retrofit;import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;import retrofit2.converter.gson.GsonConverterFactory;public class ApiManager { private Retrofit client; private ApiManager() { client = new Retrofit.Builder() .baseUrl(AppConstants.Base_Url_Test) .client(initClient()) .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build(); } private static volatile MallApi INSTANCE; public static MallApi getInstance() { if (INSTANCE == null) { synchronized (ApiManager.class) { if (INSTANCE == null) { INSTANCE = new ApiManager().getMallApi(); } } } return INSTANCE; } private MallApi getMallApi() { return client.create(MallApi.class); } private static OkHttpClient initClient() { OkHttpClient.Builder builder = new OkHttpClient.Builder(); //声明日志类 HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() { @Override public void log(String message) { Log.v("LinNet", message); } }); //设定日志级别 httpLoggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY); //延时 builder.addInterceptor(httpLoggingInterceptor) .connectTimeout(10, TimeUnit.SECONDS) .readTimeout(10, TimeUnit.SECONDS) .writeTimeout(10, TimeUnit.SECONDS); return builder.build(); }} 怎么用：
showLoading(); Map<String, String> map = new ArrayMap<>(); map.put("action", "pricetrend"); addCompositeDisposable(RxNet.request(ApiManager.getInstance().getCat(map), new RxNetCallBack<List<CatBean>>() { @Override public void onSuccess(List<CatBean> data) { hideLoading(); showToast("获取列表成功" + data.get(0).toString()); } @Override public void onFailure(String msg) { hideLoading(); showToast(msg); } })); Demo奉上 https://github.com/FriendLin/NetRequestDemo
总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作具有一定的参考学习价值，如果有疑问大家可以留言交流，谢谢大家对VEVB武林网的支持。
注：相关教程知识阅读请移步到Android开发频道。
