Retrofit框架读书总结笔记（一）

最新推荐文章于 2025-06-27 23:50:40 发布

原创最新推荐文章于 2025-06-27 23:50:40 发布 · 222 阅读

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本文介绍如何使用Retrofit框架进行网络请求操作，包括GET、POST、PUT和DELETE等HTTP方法的实现方式，并提供了文件上传和下载的具体示例。

一、添加依赖

build.gradle

dependencies {
    compile 'com.squareup.retrofit2:retrofit:2.0.2'
    // Retrofit库
    compile 'com.squareup.okhttp3:okhttp:3.1.2'
    // Okhttp库
  }

点击右上角Sync Now

二、

（1）RestService类

import java.util.WeakHashMap;

import okhttp3.MultipartBody;
import okhttp3.RequestBody;
import okhttp3.ResponseBody;
import retrofit2.Call;
import retrofit2.http.Body;
import retrofit2.http.DELETE;
import retrofit2.http.FieldMap;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.GET;
import retrofit2.http.Multipart;
import retrofit2.http.POST;
import retrofit2.http.PUT;
import retrofit2.http.Part;
import retrofit2.http.QueryMap;
import retrofit2.http.Streaming;
import retrofit2.http.Url;

/**
 * Created by Administrator on 2017/11/28.
 */

public interface RestService {

    @GET
    Call<String> get(@Url String url, @QueryMap WeakHashMap<String, Object> params);

    @FormUrlEncoded
    @POST
    Call<String> post(@Url String url, @FieldMap WeakHashMap<String, Object> params);

    @POST
    Call<String> postRaw(@Url String url, @Body RequestBody body);

    @FormUrlEncoded
    @PUT
    Call<String> put(@Url String url, @FieldMap WeakHashMap<String, Object> params);

    @PUT
    Call<String> putRaw(@Url String url, @Body RequestBody body);

    @DELETE
    Call<String> delete(@Url String url, @QueryMap WeakHashMap<String, Object> params);

    @Streaming
    @GET
    Call<ResponseBody> download(@Url String url, @QueryMap WeakHashMap<String, Object> params);

    @Multipart
    @POST
    Call<String> upload(@Url String url, @Part MultipartBody.Part file);
}