昨天给大家介绍了Retrofit配合Rxjava使用,但是重复代码无比的多,所以今天给大家吧Retrofit封装一下,通过3行代码来请求网络数据
实现单例模式
package demo.ht.com.volley.retrofitHttp;
import android.text.TextUtils;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import io.reactivex.Observable;
import io.reactivex.android.BuildConfig;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.schedulers.Schedulers;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.RequestBody;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.adapter.rxjava2.RxJava2CallAdapterFactory;
import retrofit2.converter.gson.GsonConverterFactory;
// 添加以下依赖::
//// Retrofit:
// implementation 'com.squareup.retrofit2:retrofit:2.9.0'
// implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
//
//
// //glide4: //用于图片处理
// implementation 'com.github.bumptech.glide:glide:4.8.0'
// annotationProcessor 'com.github.bumptech.glide:compiler:4.8.0'
//
// //RxJava:
// implementation "io.reactivex.rxjava2:rxjava:2.1.3" // 必要rxjava2依赖
// implementation "io.reactivex.rxjava2:rxandroid:2.0.1" // 必要rxandrroid依赖，切线程时需要用到
// implementation 'com.squareup.retrofit2:adapter-rxjava2:2.4.0' // 必要依赖，和Retrofit结合必须用到，下面会提到
//
// /**
// * 日志拦截器
// */
// implementation 'com.squareup.okhttp3:logging-interceptor:3.3.1'
/**
* 20200721 szj
*/
public class NetManager {
private static volatile NetManager sNetManager;
private NetManager() {
}
public static NetManager getNetManager() {
if (sNetManager == null) {//考虑效率问题
synchronized (NetManager.class) {
if (sNetManager == null) {//考虑多个线程问题
sNetManager = new NetManager();
}
}
}
return sNetManager;
}
/**
*
* @param t 传入接口前半段 注意以/结尾 返回 ApiServer
* @param <T>
* @return
*/
public <T> ApiServer getNetService(T... t) {
/**
* 使用官方日志拦截器
* 添加依赖:
* implementation 'com.squareup.okhttp3:logging-interceptor:3.3.1'
*/
OkHttpClient.Builder builder = new OkHttpClient.Builder();
if (BuildConfig.DEBUG) {
// Log信息拦截器
HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);//这里可以选择拦截级别
//设置 Debug Log 模式
builder.addInterceptor(loggingInterceptor);
}
//日志拦截器
OkHttpClient build = builder.build();
ApiServer service = new Retrofit.Builder()
//传入可变参数是因为这里也可以使用默认接口ApiServer.BaseUri
.baseUrl(t != null && t.length != 0 && !TextUtils.isEmpty((String) t[0]) ? (String) t[0] : ApiServer.BaseUri)
.addConverterFactory(GsonConverterFactory.create())
.addCallAdapterFactory(RxJava2CallAdapterFactory.create())
.client(build)
.build().create(ApiServer.class);
return service;
}
/**
*
* @param whichApi ID编号 通过ID编号来区分当前请求的数据
* @param pObservable 请求的接口
* @param presenterCallBack 返回值
* @param <T>
*/
public <T> void method( final int whichApi,Observable<T> pObservable, final ICommonView presenterCallBack) {
pObservable.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new BaseObserver() {
@Override
public void onSuccess(Object value) {
presenterCallBack.onSuccess(whichApi, value);
}
@Override
public void onFailed(Throwable value) {
presenterCallBack.onFailed(whichApi, value);
}
});
}
/**
*
* 用于POST请求 传入键值对 获取RequestBody
* @param hashMap hashMap键值对
* @return
*/
public RequestBody getRequestBody(HashMap<String, String> hashMap) {
StringBuffer data = new StringBuffer();
if (hashMap != null && hashMap.size() > 0) {
Iterator iter = hashMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry) iter.next();
Object key = entry.getKey();
Object val = entry.getValue();
data.append(key).append("=").append(val).append("&");
}
}
String jso = data.substring(0, data.length() - 1);
RequestBody requestBody = RequestBody.create(MediaType.parse("application/x-www-form-urlencoded; charset=utf-8"),jso);
return requestBody;
}
}
创建接口,用于实现Retrofit
/**
* 用于定义Retrofit接口
*/
public interface ApiServer {
public static String BaseUri = "https://gank.io/api/data/%E7%A6%8F%E5%88%A9/";
// http://hn216.api.yesapi.cn/
public static String GuoChuangYun_BaseUri = "http://hn216.api.yesapi.cn/";
}
封装Observer
public abstract class BaseObserver implements Observer {
private Disposable d;
@Override
public void onSubscribe(Disposable d) {
this.d = d;
}
@Override
public void onNext(Object value) {
onSuccess(value);
dispose();
}
@Override
public void onError(Throwable e) {
onFailed(e);
dispose();
}
@Override
public void onComplete() {
}
public abstract void onSuccess(Object value);
public abstract void onFailed(Throwable value);
private void dispose() {
if (!d.isDisposed())
d.dispose();
}
}
创建接口,实现成功与失败方法返回
public interface ICommonView<S> {
void onSuccess(int whichApi, S successResult);
void onFailed(int whichApi, Throwable failedResult);
}
GET使用
NetManager netManager = NetManager.getNetManager();
ApiServer netService = netManager.getNetService(ApiServer.BaseUri);
//请求美女接口
netManager.method(ApiConfig.GET_DATA_MEINV, netService.getHttpMeiNvBean("8", "1"), this);
实现ICommonView接口,重写onSuccess()和onFailed()方法,通过whichApi判断当前接口
@Override
public void onSuccess(int whichApi, Object successResult) {
if (whichApi == ApiConfig.GET_DATA_MEINV) {
MeiNvBean meiNvBean = (MeiNvBean) successResult;
mTv.setText("使用成功:\n" + meiNvBean.toString());
}
}
@Override
public void onFailed(int whichApi, Throwable failedResult) {
mTv.setText("使用失败:\n" + whichApi + "\n" + failedResult.getMessage());
}
POST使用
NetManager netManager = NetManager.getNetManager();
ApiServer netService = netManager.getNetService(ApiServer.GuoChuangYun_BaseUri);
/** 方法一:
* 通过netManager.getRequestBody() 获取RequestBody对象
*/
RequestBody requestBody = netManager.getRequestBody(stringHashMap);
netManager.method(ApiConfig.POST_UP_DATA_GUOCHUANGYUN,netService.getPOSTBodyGuoCHuangYunBean(requestBody),this);
/** 方法二:
* @POST 配合 @Body 注解请求数据
*/
// netManager.method(ApiConfig.POST_UP_DATA_GUOCHUANGYUN,netService.getPOSTBodyGuoCHuangYunBean(app_key),this);
/** 方法三:
* @FormUrlEncoded 配合 @FieldMap请求数据
* 注意:要想使用@FiledMap 或者 @Filed就必须使用@FormUrlEncoded注解声明
* 使用@FormUrlEncoded 就必须使用@FiledMap 或者 @Filed
*/
// netManager.method(ApiConfig.POST_UP_DATA_GUOCHUANGYUN,netService.getPOSTGuoCHuangYunBean(stringHashMap),this);
注释写的很详细,这里写了3种POST请求数据的方法;就不一一讲解了
然后还是和GET一样,实现ICommonView接口,重写onSuccess()和onFailed()方法
@Override
public void onSuccess(int whichApi, Object successResult) {
if(whichApi == ApiConfig.POST_UP_DATA_GUOCHUANGYUN){
GuoChuangYunBean guoChuangYunBean = (GuoChuangYunBean) successResult;
mTv.setText("使用成功:\n" + guoChuangYunBean.toString());
}
}
@Override
public void onFailed(int whichApi, Throwable failedResult) {
mTv.setText("使用失败:\n" + whichApi + "\n" + failedResult.getMessage());
}
POST上传图片和参数
//方法一:
RequestBody requestBody = new MultipartBody.Builder().
setType(MultipartBody.FORM)
.addFormDataPart("app_key", "74D2E724FE2B69EF7EA3F38E9400CF71")
.addFormDataPart("file", file.getName(), RequestBody.create(MediaType.parse("image/png"), file))
.build();
//方法二:
RequestBody fileRQ = RequestBody.create(MediaType.parse("image/png"), file);
MultipartBody.Part part = MultipartBody.Part.createFormData("file", file.getName(), fileRQ);
RequestBody fb =RequestBody.create(MediaType.parse("text/plain"), "74D2E724FE2B69EF7EA3F38E9400CF71");
/**
* 封装
*/
NetManager netManager = NetManager.getNetManager();
ApiServer netService = netManager.getNetService(ApiServer.GuoChuangYun_BaseUri);
/** 方法一:
* 使用 @Body 注解 实现图片+参数一起上传
*/
// netManager.method(ApiConfig.UP_DATA_IMAEG, netService.getImageBean(requestBody), this);
/** 方法二:
* 使用 @Multipart注解 配合@Part 实现单独上传参数 和 单独上传图片
*/
netManager.method(ApiConfig.UP_DATA_IMAEG, netService.uploadFile(fb,part), this);
同样实现ICommonView接口,重写onSuccess()和onFailed()方法,通过whichApi来判断当前接口;
@Override
public void onSuccess(int whichApi, Object successResult) {
if (whichApi == ApiConfig.UP_DATA_IMAEG) {
ImageBean imageBean = (ImageBean) successResult;
Glide.with(this)
.load(imageBean.getData().getUrl())
.apply(new RequestOptions().placeholder(R.mipmap.ic_launcher))
.into(mImage);
mTv.setText("使用成功:\n" + imageBean.toString());
}
}
@Override
public void onFailed(int whichApi, Throwable failedResult) {
mTv.setText("使用失败:\n" + whichApi + "\n" + failedResult.getMessage());
}
Git地址: langyangyang
创作不易,各位有更好意见的请在评论区留言!谢谢观看啦~