RxJava2和Retrofit

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1.先导入包implementation 'io.reactivex.rxjava2:rxjava:2.1.6'implementation 'io.reactivex.rxjava2:rxandroid:2.0.1'implementation 'com.squareup.retrofit2:converter-gson:2.3.0'implementation 'com.squareup.retrofit2:retrofit:2.3.0'implementation 'com.squareup.retrofit2:adapter-rxjava2:2.3.0'2.设置接口
public interface Test {    @GET("user/getUserInfo")    Observable<ResponseBody> get(@Query("uid") String uid);}

3.具体代码
OkHttpClient client=new OkHttpClient.Builder().addInterceptor(new LoggingInterceptor()).build();Retrofit retrofit=new Retrofit.Builder()         .baseUrl("http://120.27.23.105/")         .addConverterFactory(GsonConverterFactory.create())         .addCallAdapterFactory(RxJava2CallAdapterFactory.create())  //retrofit的初始化加了一行代码         .client(client)  //添加拦截器         .build();  Test test = retrofit.create(Test.class);  //被观察者  Observable<ResponseBody> observable = test.get("uid");  //观察者  Observer<ResponseBody> observer=new Observer<ResponseBody>() {      @Override      public void onSubscribe(Disposable d) {      }      @Override      public void onNext(ResponseBody responseBody) {          System.out.println("成功");      }      @Override      public void onError(Throwable e) {          System.out.println("失败");      }      @Override      public void onComplete() {      }  };4.订阅
observable. subscribeOn(Schedulers.newThread()) //被观察者在哪里执行任务(调度主线程)           .observeOn(Schedulers.newThread())//被观察者在哪里发送信息           .subscribe(observer);  //订阅
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