Retrofit的简单封装使用

1.Retrofit的简单封装

import java.io.IOException;import java.util.concurrent.TimeUnit;import okhttp3.Interceptor;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.Response;import retrofit2.Retrofit;import retrofit2.converter.gson.GsonConverterFactory;/** * Created by zhangbo on 2017/7/11. * @todo */public class OKHttpMgr {    private static final int DEFAULT_TIME_OUT = 10;//超时时间 10s    private static final int DEFAULT_READ_TIME_OUT = 10;    private Retrofit mRetrofit;    private static OKHttpMgr mHttpMgr;    private OKHttpMgr(){        // 创建 OKHttpClient        OkHttpClient.Builder builder = new OkHttpClient.Builder();        builder.connectTimeout(DEFAULT_TIME_OUT, TimeUnit.SECONDS);//连接超时时间        // builder.writeTimeout(DEFAULT_READ_TIME_OUT,TimeUnit.SECONDS);//写操作 超时时间        builder.readTimeout(DEFAULT_READ_TIME_OUT,TimeUnit.SECONDS);//读操作超时时间        builder.addInterceptor(commonHeader());        // 创建Retrofit        mRetrofit = new Retrofit.Builder()                .client(builder.build()                //暂不支持RxJava//                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())                .addConverterFactory(GsonConverterFactory.create())                .baseUrl(UrlConst.HOST)                .build();    }//    private static class SingletonHolder{//        private static final OKHttpMgr INSTANCE = new OKHttpMgr();//    }    public static OKHttpMgr getDefault(){        if (mHttpMgr == null) {            synchronized (OKHttpMgr.class) {                if (mHttpMgr == null) {                    mHttpMgr = new OKHttpMgr();                }            }        }        return mHttpMgr;    }    public <T> T create(Class<T> service){        return mRetrofit.create(service);    }    /**     * 利用拦截器配置请求头     * @return     */    private Interceptor commonHeader() {        Interceptor commonInterceptor = new Interceptor() {            @Override            public Response intercept(Chain chain) throws IOException {                Request request = chain.request()                        .newBuilder()                        //对于通用型请求头可在此处配置，因为项目中token请求头为作为登录令牌存在                        //且设置有时限，所以放在Api中配置更合适//                        .addHeader("soa-token", mToken==null?"":mToken)                        .addHeader("Accept", "application/json")                        .addHeader("Content-Type", "application/json; charset=utf-8")                        .build();                return chain.proceed(request);            }        };        return commonInterceptor;    }}

2.根据业务自定义响应回调

import org.greenrobot.eventbus.EventBus;import retrofit2.Call;import retrofit2.Callback;import retrofit2.Response;/** * Created by zhangbo on 2017/7/13. * @todo 配合RetrofitMgr 执行网络请求任务 响应自定义回调ResponseCb */public class RetrofitTask{    private Call<BaseBean> mCall;    private final int SUCCESS = 0;    private final int ERROR = 900;    private final int TOKEN_MISS = 111;    private final String TAG = "zhangbo";    public RetrofitTask(Call call) {        mCall = call;    }    public void execute(final ResponseCb cb) {        mCall.enqueue(new Callback<BaseBean>() {            @Override            public void onResponse(Call<BaseBean> call, Response<BaseBean> response) {                if (response.isSuccessful() && response.body() != null) {                    if (response.body().getErrCode() == SUCCESS) {                        cb.onSuccess(response.body().getData());                    }else if(response.body().getErrCode() == TOKEN_MISS){                        EventBus.getDefault().post(new EventMsg(EventType.TOKEN_IS_MISSING));                        cb.onFail(TOKEN_MISS,"登录已失效,请重新登录");                    } else {                        cb.onFail(response.body().getErrCode(),response.body().getErrMsg());                    }                    KLog.d(TAG, "onResponse: code="+response.code() +" body="+ response.body().toString());                } else {                    cb.onFail(response.code(),response.message());                }            }            @Override            public void onFailure(Call<BaseBean> call, Throwable t) {                cb.onFail(ERROR,"请检查网络");                KLog.d(TAG, "RetrofitTask onFailure:" + t.getMessage());            }        });    }    }

3.基础响应体对象模型基类

public class BaseBean<T> implements Serializable {    public int errCode;    public String errMsg;    public T data;    public int getErrCode() {        return errCode;    }    public void setErrCode(int errCode) {        this.errCode = errCode;    }    public java.lang.String getErrMsg() {        return errMsg;    }    public void setErrMsg(java.lang.String errMsg) {        this.errMsg = errMsg;    }    public T getData() {        return data;    }    public void setData(T data) {        this.data = data;    }}

4.Api接口示例，以地址管理为例，包含增删改查

public interface Api4Address {    String d = "/api";    @FormUrlEncoded    @POST(d+"/app/userAddress/update")    Call<BaseBean> editAddress(@Header("soa-token")String token,@FieldMap Map<String, Object> map);    @FormUrlEncoded    @POST(d+"/app/userAddress/add")    Call<BaseBean> addAddress(@Header("soa-token")String token,@FieldMap Map<String, Object> map);    @GET(d+"/app/userAddress/getAddress")    Call<BaseBean<List<ReceiveAddressBean>>> getAddressList(@Header("soa-token")String token, @Query("userId") int userId);    @DELETE(d+"/app/userAddress/deleteAddress/{id}")    Call<BaseBean> deleteAddress(@Header("soa-token")String token,@Path("id") int id);    @FormUrlEncoded    @POST(d+"/app/userAddress/setDefault")    Call<BaseBean> setDefaultAddress(@Header("soa-token")String token,@Field("id") int id,@Field("userId") int userId);    //与FieldMap的表单协议传参不同，利用RequestBody可支持JSON体传参body=    //RequestBody.create(MediaType.parse("application/json"),JSON.toJSONString(obj));    @POST(d+"/app/userAddress/add")    Call<BaseBean> addAddress(@Header("soa-token")String token,@Body RequestBody body);}

5.调用

        Map<String, Object> map = new HashMap<>();        map.put("userId", AccountMgr.getXMemberId(mBaseContext));        map.put...//      ReceiveAddressBean addressBean = new ReceiveAddressBean();//      addressBean.setUserId(AccountMgr.getXMemberId(mBaseContext));...//      RequestBody body = RequestBody.create(//      MediaType.parse("application/json"),JSON.toJSONString(obj));        Api4Address api4Address = OKHttpMgr.getDefault().create(Api4Address.class);        //表单入参        Call call  = api4Address.addAddress(AccountMgr.getToken(mBaseContext),map);        //JSON体入参        //Call call  = api4Address.addAddress(AccountMgr.getToken(mBaseContext),body);        new RetrofitTask(call).execute(new ResponseCb() {            @Override            public void onSuccess(Object o) {            }            @Override            public void onFail(int code, String msg) {            }        });

附上几篇Retrofit和RxJava的深度好文
Retrofit参考文章 http://blog.csdn.net/carson_ho/article/details/73732076
RxJava入门到放弃 https://www.daidingkang.cc/2017/05/19/Rxjava/
RxJava再到不离不弃 http://gank.io/post/560e15be2dca930e00da1083
Retrofit+RxJava http://gank.io/post/56e80c2c677659311bed9841