• retrofit okhttp RxJava bk Gson Lambda 综合示例【配置】


        <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

    依赖

    注：这里没有指定支持 Lambda 表达式需要的配置
        //【retrofit2】
    compile 'com.squareup.retrofit2:retrofit:2.3.0'
    compile 'com.squareup.retrofit2:converter-gson:2.3.0'
    compile 'com.squareup.retrofit2:adapter-rxjava:2.3.0'

    //【okhttp】
    compile 'com.squareup.okhttp3:okhttp:3.8.0'
    compile 'com.squareup.okhttp3:logging-interceptor:3.8.0'
    compile 'com.squareup.okio:okio:1.13.0'

    //【butterknife】
    compile 'com.jakewharton:butterknife:8.8.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'

    //【rxjava】
    compile 'io.reactivex:rxandroid:1.1.0'
    compile 'io.reactivex:rxjava:1.1.6'

    GitHubApi

    public interface GitHubApi {
	
	@GET("repos/{owner}/{repo}/contributors")
	Call<ResponseBody> contributorsBySimpleGetCall(@Path("owner") String owner, @Path("repo") String repo);
	
	@GET("repos/{owner}/{repo}/contributors")
	Call<List<Contributor>> contributorsByAddConverterGetCall(@Path("owner") String owner, @Path("repo") String repo);
	
	@Headers({"Accept: application/vnd.github.v3.full+json", "User-Agent: RetrofitBean-Sample-App", "name:ljd"})
	@GET("repos/{owner}/{repo}/contributors")
	Call<List<Contributor>> contributorsAndAddHeader(@Path("owner") String owner, @Path("repo") String repo);
	
	@GET("search/repositories")
	Call<RetrofitBean> queryRetrofitByGetCall(@Query("q") String owner, @Query("since") String time, @Query("page") int page, @Query("per_page") int per_Page);
	
	@GET("search/repositories")
	Call<RetrofitBean> queryRetrofitByGetCallMap(@QueryMap Map<String, String> map);
	
	@GET("repos/{owner}/{repo}/contributors")
	Observable<List<Contributor>> contributorsByRxJava(@Path("owner") String owner, @Path("repo") String repo);
	
	@GET("users/{user}")
	Observable<User> userByRxJava(@Path("user") String user);
	
	@GET("/mobilesafe/shouji360/360safesis/360MobileSafe_6.2.3.1060.apk")
	Call<ResponseBody> retrofitDownload();
}

    MainActivity

    public class MainActivity extends ListActivity {
	private TextView tv;
	private static final String baseUrl = "https://api.github.com/";
	private static final String mUserName = "square";//哪个公司【square】
	private static final String mRepo = "retrofit";//哪个项目【retrofit】
	private CompositeSubscription mSubscriptions = new CompositeSubscription();
	
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		String[] array = {"1、简单完整演示retrofit的使用",
				"2、添加Gson转换器",
				"3、添加okHttp的日志拦截器Interceptor",
				"4、使用自己封装的API，演示@Headers",
				"5、演示同步请求",
				"6、演示@Query",
				"7、演示@QueryMap",
				"8、最简单、完整的retrofit+rxJava示例",
				"9、rxJava+retrofit增强",
				"10、演示文件下载",};
		tv = new TextView(this);// 将内容显示在TextView中
		tv.setTextColor(Color.BLUE);
		getListView().addFooterView(tv);
		setListAdapter(new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, new ArrayList<>(Arrays.asList(array))));
	}
	
	@Override
	protected void onDestroy() {
		if (mSubscriptions != null) mSubscriptions.unsubscribe();
		super.onDestroy();
	}
	
	@Override
	protected void onListItemClick(ListView l, View v, int position, long id) {
		switch (position + 1) {
			case 1://简单完整演示retrofit的使用
				requestGitHubContributorsSimple();
				break;
			case 2://添加Gson转换器
				requestGitHubContributorsByConverter();
				break;
			case 3://添加okHttp的日志拦截器Interceptor
				requestGitHubContributorsAddOkHttpLog();
				break;
			case 4://使用自己封装的API，演示@Headers
				requestGitHubContributorsAddHeader();
				break;
			case 5://演示同步请求
				requestGitHubContributorsBySync();
				break;
			case 6://演示@Query
				requestQueryRetrofitByGet(false);
				break;
			case 7://演示@QueryMap
				requestQueryRetrofitByGet(true);
				break;
			case 8://最简单、完整的retrofit+rxJava示例
				requestGitHubContributorsByRxJava();
				break;
			case 9://rxJava+retrofit增强
				requestGitHubContributorsWithFullUserInfo();
				break;
			case 10://演示文件下载
				retrofitDownload();
				break;
		}
	}
	
	/**
	 * 1、简单示例
	 */
	private void requestGitHubContributorsSimple() {
		Retrofit retrofit = new Retrofit.Builder()
				.baseUrl(baseUrl)
				.build();
		GitHubApi repo = retrofit.create(GitHubApi.class);
		Call<ResponseBody> call = repo.contributorsBySimpleGetCall(mUserName, mRepo);
		call.enqueue(new Callback<ResponseBody>() {
			@Override
			public void onResponse(@NonNull Call<ResponseBody> call, @NonNull Response<ResponseBody> response) {
				String result = null;
				try {
					result = response.body().string();
					if (result == null) return;
				} catch (IOException e) {
					e.printStackTrace();
				}
				tv.setText("GitHub上对项目的贡献-1：
");
				ArrayList<Contributor> list = new Gson()
						.fromJson(result, new TypeToken<List<Contributor>>() {
						}.getType());
				if (list == null || list.size() == 0) return;
				for (Contributor contributor : list) {
					tv.append(contributor.login + "    " + contributor.contributions + "
");
				}
			}
			
			@Override
			public void onFailure(@NonNull Call<ResponseBody> call, @NonNull Throwable t) {
				Toast.makeText(MainActivity.this, t.getMessage(), Toast.LENGTH_SHORT).show();
			}
		});
	}
	
	/**
	 * 2、添加Gson转换器
	 */
	private void requestGitHubContributorsByConverter() {
		new Retrofit.Builder()
				.baseUrl(baseUrl)
				.addConverterFactory(GsonConverterFactory.create())//转换器
				.build()
				.create(GitHubApi.class)
				.contributorsByAddConverterGetCall(mUserName, mRepo)
				.enqueue(new Callback<List<Contributor>>() {
					@Override
					public void onResponse(@NonNull Call<List<Contributor>> call, @NonNull Response<List<Contributor>> response) {
						List<Contributor> list = response.body();
						tv.setText("GitHub上对项目的贡献-2：
");
						if (list == null || list.size() == 0) return;
						for (Contributor contributor : list) {
							tv.append(contributor.login + "    " + contributor.contributions + "
");
						}
					}
					
					@Override
					public void onFailure(@NonNull Call<List<Contributor>> call, @NonNull Throwable t) {
						Toast.makeText(MainActivity.this, t.getMessage(), Toast.LENGTH_SHORT).show();
					}
				});
	}
	
	/**
	 * 3、添加okHttp的日志拦截器Interceptor
	 */
	private void requestGitHubContributorsAddOkHttpLog() {
		HttpLoggingInterceptor logInterceptor = new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY);
		
		Retrofit retrofit = new Retrofit.Builder()
				.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
				.client(new OkHttpClient.Builder().addInterceptor(logInterceptor).build())
				.baseUrl(baseUrl)
				.addConverterFactory(GsonConverterFactory.create())
				.build();
		
		retrofit.create(GitHubApi.class)
				.contributorsByAddConverterGetCall(mUserName, mRepo)
				.enqueue(new Callback<List<Contributor>>() {
					@Override
					public void onResponse(@NonNull Call<List<Contributor>> call, @NonNull Response<List<com.bqt
							.retrofit.bean.Contributor>> response) {
						List<Contributor> list = response.body();
						tv.setText("GitHub上对项目的贡献-3：
");
						if (list == null || list.size() == 0) return;
						for (Contributor contributor : list) {
							tv.append(contributor.login + "    " + contributor.contributions + "
");
						}
					}
					
					@Override
					public void onFailure(@NonNull Call<List<Contributor>> call, @NonNull Throwable t) {
						Toast.makeText(MainActivity.this, t.getMessage(), Toast.LENGTH_SHORT).show();
					}
				});
	}
	
	/**
	 * 4、使用自己封装的API，演示@Headers
	 */
	private void requestGitHubContributorsAddHeader() {
		createRetrofitService(GitHubApi.class)
				.contributorsAndAddHeader(mUserName, mRepo)
				.enqueue(new Callback<List<Contributor>>() {
					@Override
					public void onResponse(@NonNull Call<List<Contributor>> call, @NonNull Response<List<com.bqt
							.retrofit.bean.Contributor>> response) {
						List<Contributor> list = response.body();
						tv.setText("GitHub上对项目的贡献-4：
");
						if (list == null || list.size() == 0) return;
						for (Contributor contributor : list) {
							tv.append(contributor.login + "    " + contributor.contributions + "
");
						}
					}
					
					@Override
					public void onFailure(@NonNull Call<List<Contributor>> call, @NonNull Throwable t) {
					}
				});
	}
	
	/**
	 * 5、演示同步请求
	 */
	private void requestGitHubContributorsBySync() {
		final Call<List<Contributor>> call = createRetrofitService(GitHubApi.class)
				.contributorsByAddConverterGetCall(mUserName, mRepo);
		new Thread(() -> {
			try {
				Response<List<Contributor>> response = call.execute();//在子线程中请求网络
				final List<Contributor> list = response.body();
				runOnUiThread(() -> {
					tv.setText("GitHub上对项目的贡献-5：
");
					for (Contributor contributor : list) {
						tv.append(contributor.login + "    " + contributor.contributions + "
");
					}
				});
			} catch (IOException e) {
				e.printStackTrace();
			}
		}).start();
	}
	
	/**
	 * 6/7、演示@Query和@QueryMap
	 */
	private void requestQueryRetrofitByGet(boolean isQueryMap) {
		GitHubApi mGitHubService = createRetrofitService(GitHubApi.class);
		Call<RetrofitBean> call;
		if (!isQueryMap) call = mGitHubService.queryRetrofitByGetCall("retrofit", "2016-03-29", 1, 3);
		else {
			Map<String, String> queryMap = new HashMap<>();
			queryMap.put("q", "retrofit");
			queryMap.put("since", "2016-03-29");
			queryMap.put("page", "1");
			queryMap.put("per_page", "3");
			call = mGitHubService.queryRetrofitByGetCallMap(queryMap);
		}
		
		call.enqueue(new Callback<RetrofitBean>() {
			@Override
			public void onResponse(@NonNull Call<RetrofitBean> call, @NonNull Response<RetrofitBean> response) {
				RetrofitBean retrofitBean = response.body();
				if (retrofitBean == null) return;
				List<Item> list = retrofitBean.getItems();
				if (list == null || list.size() == 0) return;
				
				tv.setText(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss SSS", Locale.getDefault()).format(new Date()));
				tv.append("
total:" + retrofitBean.getTotalCount() + "
incompleteResults:" + retrofitBean.getIncompleteResults());
				for (Item item : list) {
					tv.append("

【name】" + item.name);
					tv.append("
【full_name】" + item.full_name);
					tv.append("
【 description】" + item.description);
				}
			}
			
			@Override
			public void onFailure(@NonNull Call<RetrofitBean> call, @NonNull Throwable t) {
			}
		});
	}
	
	/**
	 * 8、最简单、完整的retrofit+rxJava示例
	 */
	private void requestGitHubContributorsByRxJava() {
		createRetrofitService(GitHubApi.class)
				.contributorsByRxJava(mUserName, mRepo)//
				.subscribeOn(Schedulers.io())//
				.observeOn(AndroidSchedulers.mainThread())//
				.subscribe(new Observer<List<Contributor>>() {
					@Override
					public void onCompleted() {
						Toast.makeText(MainActivity.this, "完成", Toast.LENGTH_SHORT).show();
					}
					
					@Override
					public void onError(Throwable e) {
						Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_SHORT).show();
					}
					
					@Override
					public void onNext(List<Contributor> list) {
						tv.setText("GitHub上对项目的贡献-8：
");
						for (Contributor contributor : list) {
							tv.append(contributor.login + "    " + contributor.contributions + "
");
						}
					}
				});
	}
	
	/**
	 * 9、rxJava+retrofit增强
	 */
	private void requestGitHubContributorsWithFullUserInfo() {
		tv.setText("");
		final GitHubApi mGitHubService = createRetrofitService(GitHubApi.class);
		
		Subscription subscription =
				mGitHubService.contributorsByRxJava(mUserName, mRepo)//
						.flatMap(new Func1<List<Contributor>, Observable<Contributor>>() {
							//变换：将事件序列中的对象或整个序列进行加工处理，转换成不同的事件或事件序列
							@Override
							public Observable<Contributor> call(List<Contributor>
									                                    contributors) {
								//1、使用传入的事件对象创建一个 Observable 对象；
								//2、并不发送这个 Observable，而是将它激活，于是它开始发送事件；
								//3、创建的 Observable 发送的事件，都被汇入同一个 Observable，而这个 Observable 负责将这些事件统一交给Subscriber 的回调方法
								return Observable.from(contributors);
							}
						})
						.flatMap(new Func1<Contributor, Observable<Pair<User, Contributor>>>() {
							@Override
							public Observable<Pair<User, Contributor>> call(com.bqt
									                                                .retrofit.bean.Contributor contributor) {
								Observable<User> userObservable = mGitHubService.userByRxJava(contributor.login)
										.filter(user -> !isEmpty(user.name) && !isEmpty(user.email));
								return Observable.zip(userObservable, Observable.just(contributor), Pair::new);
							}
						})
						.subscribeOn(Schedulers.newThread())//指定 subscribe() 发生在哪个线程，后台线程取数据，主线程显示
						.observeOn(AndroidSchedulers.mainThread())//指定 Subscriber 的回调发生在主线程
						.subscribe(new Observer<Pair<User, Contributor>>() {
							@Override
							public void onCompleted() {
								Toast.makeText(MainActivity.this, "完成", Toast.LENGTH_SHORT).show();
							}
							
							@Override
							public void onError(Throwable e) {
								Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_SHORT).show();
							}
							
							@Override
							public void onNext(Pair<User, Contributor> pair) {
								User user = pair.first;
								Contributor contributor = pair.second;
								tv.append("name：" + user.name + "
contributions：" + contributor.contributions + "
Email：" + user.email + "

");
							}
						});
		mSubscriptions.add(subscription);
	}
	
	/**
	 * 10、演示文件下载
	 */
	public void retrofitDownload() {
		//监听下载进度
		final ProgressDialog dialog = new ProgressDialog(this);
		dialog.setProgressNumberFormat("%1d KB/%2d KB");
		dialog.setTitle("下载");
		dialog.setMessage("正在下载，请稍后...");
		dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
		dialog.setCancelable(false);
		dialog.show();
		
		ProgressHelper.setProgressHandler(new DownloadProgressHandler() {
			@Override
			protected void onProgress(long bytesRead, long contentLength, boolean done) {
				//在主线程中运行
				dialog.setMax((int) (contentLength / 1024));
				dialog.setProgress((int) (bytesRead / 1024));
				if (done) dialog.dismiss();
			}
		});
		
		Retrofit retrofit = new Retrofit.Builder()//
				.addCallAdapterFactory(RxJavaCallAdapterFactory.create())//
				.addConverterFactory(GsonConverterFactory.create())//
				.baseUrl("http://msoftdl.360.cn")
				.client(ProgressHelper.addProgress(null).build())
				.build();
		
		retrofit.create(GitHubApi.class).retrofitDownload()
				.enqueue(new Callback<ResponseBody>() {
					@Override
					public void onResponse(@NonNull Call<ResponseBody> call, @NonNull Response<ResponseBody> response) {
						try {
							InputStream is = response.body().byteStream();
							File file = new File(Environment.getExternalStorageDirectory(), "12345.apk");
							FileOutputStream fos = new FileOutputStream(file);
							BufferedInputStream bis = new BufferedInputStream(is);
							byte[] buffer = new byte[1024];
							int len;
							while ((len = bis.read(buffer)) != -1) {
								fos.write(buffer, 0, len);
								fos.flush();
							}
							fos.close();
							bis.close();
							is.close();
						} catch (IOException e) {
							e.printStackTrace();
						}
					}
					
					@Override
					public void onFailure(@NonNull Call<ResponseBody> call, @NonNull Throwable t) {
					}
				});
	}
	
	public static <T> T createRetrofitService(final Class<T> service) {
		HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor()
            .setLevel(HttpLoggingInterceptor.Level.BODY);
		OkHttpClient.Builder builder = new OkHttpClient.Builder().addInterceptor(httpLoggingInterceptor);
		Retrofit retrofit = new Retrofit.Builder()//
				.client(ProgressHelper.addProgress(builder).build())//
				.addCallAdapterFactory(RxJavaCallAdapterFactory.create())//
				.addConverterFactory(GsonConverterFactory.create())//
				.baseUrl("https://api.github.com/")//
				.build();
		return retrofit.create(service);
	}
}

    综合配置

    retrofit、okhttp、RxJava、Gson、拦截器、Header等配置
    public class H {
	private static Interceptor buildInterceptor() {
		final String token = AccountManager.getInstance().getToken();
		PackageInfo packInfo = null;
		try {
			packInfo = App.app.getPackageManager().getPackageInfo(App.app.getPackageName(), 0);
		} catch (PackageManager.NameNotFoundException e) {
			e.printStackTrace();
		}
		final int version = packInfo == null ? 1 : packInfo.versionCode;
		return new Interceptor() {//应用程序拦截器，只被调用一次
			@Override
			public okhttp3.Response intercept(Chain chain) throws IOException {
				Request request = chain.request()
						.newBuilder()
						.addHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8")
						.addHeader("Accept-Encoding", "gzip, deflate")
						.addHeader("Connection", "keep-alive")
						.addHeader("Accept", "*/*")
						//****************************************自定义Header**************************************************
						.addHeader("version", version + "")//app版本号
						.addHeader("token", token == null ? "" : token)//登录后返回的token
						.addHeader("mobile", "1")// 0-PC，1-Android，2-IOS，3-web
						.build();
				return chain.proceed(request);
			}
		};
	}
    
	private static Interceptor buildLogInterceptor() {
		return new HttpLoggingInterceptor(new HttpLoggingInterceptor.Logger() {
			@Override
			public void log(String message) {
				L.i(message);
			}
		}).setLevel(HttpLoggingInterceptor.Level.BODY);//日志显示级别
	}
    
	private static OkHttpClient buildOkHttp() {
		return new OkHttpClient.Builder()
				.addInterceptor(buildHeaderInterceptor())//自定义Header
				.addInterceptor(buildLogInterceptor())//日志拦截
                .connectTimeout(5, TimeUnit.SECONDS)
				.build();
	}
	
	private static Gson buildGson() {
		return new GsonBuilder()//配置你的Gson
				.setDateFormat("yyyy-MM-dd hh:mm:ss")
				.setPrettyPrinting()
				.serializeNulls()
				.create();
	}
	
	private static String buildBaseUrl() {
		switch (UrlHelper.getEnv()) {
			case 0: // baseUlr 必须以 / 结束，不然会抛出一个IllegalArgumentException
				return "http://test.talk.99cj.com.cn/";
			case 1:
				return "http://wechat.99cj.com.cn/";
			default:
				return "http://wechat.99cj.com.cn/";
		}
	}
	
	private static Retrofit buildRetrofit(OkHttpClient client, Converter.Factory converterFactory, CallAdapter.Factory callAdapterFactory) {
		return new Retrofit.Builder()
				.baseUrl(buildBaseUrl())
				.client(client)
				.addConverterFactory(converterFactory)//可以接收自定义的Gson，当然也可以不传
				.addCallAdapterFactory(callAdapterFactory)
				.build();
	}
	
	private static <T> T createRetrofitService(final Class<T> service) {
		Retrofit retrofit = buildRetrofit(buildOkHttp(), //
				GsonConverterFactory.create(buildGson()),//
				RxJavaCallAdapterFactory.create());//
		return retrofit.create(service);
	}
	
	public static BqtService h() {
		return createRetrofitService(BqtService.class);
	}
}
    添加上述【HttpLoggingInterceptor】拦截器后会打印如下日志
    请求参数封装
    public interface BqtService {
	/*个人中心*/  /* 如果注解中提供的url是完整的url(以http开头)，则忽略baseUrl，直接讲此url将作为请求的url */
	@GET("User") /* 如果不以/开头，则请求的url为baseUrl+注解中提供的值；否则请求的url为baseUrl的主机部分+注解中提供的值*/
	Observable<BqtRes<User>> getUser();

	/*用户购买记录*/
	@FormUrlEncoded
	@POST("BuyInfo/buyRecord")	/*【type】1：购买课程 2：购买观点 3：直播赞赏*/
	Observable<BqtRes<ArrayList<MyClassBean>>> getPurchaseHistory1(@Field("user_id") int uid, @Field("page") int page, @Field("type") int type);
}
    调用
    H.h().getUser()
	.subscribeOn(Schedulers.newThread())//指定 subscribe() 发生在哪个线程，后台线程取数据，主线程显示
	.observeOn(AndroidSchedulers.mainThread())//指定 Subscriber 的回调发生在主线程
	.subscribe(new Subscriber<BqtRes<User>>() {
		@Override
		public void onCompleted() {
		}
		
		@Override
		public void onError(Throwable e) {
			L.i("【onError】" + e.toString());
		}
		
		@Override
		public void onNext(BqtRes<User> response) {
			L.i("【onNext】" + response.data.toString());//这里response.data的类型即是User
		}
	});
    2017-9-22

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    • 原文地址：https://www.cnblogs.com/baiqiantao/p/204a470eef21bfe096742aa26524febd.html
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