初学者--Android Retrofit+RxJava+OkHttp使用post请求

川长思鸟来 2022-06-06 14:11 229阅读 0赞

## 所用到的接口:(天行数据) ##

*  [https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&page=1&num=20][https_api.tianapi.com_wxnew_key_8d6e3228d25298f13af4fc40ce6c9679_page_1_num_20]

## 先看效果： ##

![Center][]

## 1.导入依赖: ##

compile 'com.squareup.retrofit2:retrofit:2.0.1'
        compile 'com.squareup.retrofit2:converter-gson:2.0.1'
        compile 'com.squareup.retrofit2:adapter-rxjava:2.0.1'
        compile 'io.reactivex:rxandroid:1.1.0'
        compile 'com.squareup.okhttp3:logging-interceptor:3.4.1'

## 2.添加权限: ##

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

## 3.所用到的类: ##

![Center 1][]

## 4.API类: ##

public class API {
    
        public static final String PAGE_URL = "https://api.tianapi.com/wxnew/";
        
    }

## 5.ApiService接口 ##

import retrofit2.http.POST;
    import retrofit2.http.QueryMap;
    import retrofit2.http.Url;
    import rx.Observable;
    
    /**
     * Created by xue on 2017-11-10.
     */
    
    public interface ApiService {
    
        @POST
        Observable<PageBean> postpage(@Url String url, @QueryMap Map<String,String> map);
    
    }

## 6.MainActivity类: ##

import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.util.Log;
    import android.view.View;
    import android.widget.Button;
    import android.widget.TextView;
    
    import org.w3c.dom.Text;
    
    import java.util.HashMap;
    import java.util.Map;
    
    import retrofit2.Retrofit;
    import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
    import retrofit2.converter.gson.GsonConverterFactory;
    import rx.Observable;
    import rx.Observer;
    import rx.android.schedulers.AndroidSchedulers;
    import rx.schedulers.Schedulers;
    
    public class MainActivity extends AppCompatActivity {
    
        private Button btn_getdata;
        private TextView text;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            
            intiView();
            
        }
    
    
        private void intiView() {
    
            btn_getdata = (Button) findViewById(R.id.getData);
            text = (TextView) findViewById(R.id.text);
            btn_getdata.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    postHome(API.PAGE_URL,"2","10");
                }
            });
        }
    
        private void postHome(String url,String page,String num) {
    
            Map<String,String> map=new HashMap<>();
            map.put("key","8d6e3228d25298f13af4fc40ce6c9679");
            map.put("num",num);
            map.put("page",page);
    
            Retrofit retrofit = new Retrofit.Builder()
                    .baseUrl(url)
                    .addConverterFactory(GsonConverterFactory.create())
                    .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
                    .build();
            ApiService apiService = retrofit.create(ApiService.class);
            Observable<PageBean> postpage = apiService.postpage(url, map);
                postpage.subscribeOn(Schedulers.io())
                        .observeOn(AndroidSchedulers.mainThread())
                        .subscribe(new Observer<PageBean>() {
                            @Override
                            public void onCompleted() {
    
                            }
    
                            @Override
                            public void onError(Throwable e) {
    
                            }
    
                            @Override
                            public void onNext(PageBean pageBean) {
    
                                Log.d("main",pageBean.getMsg()+"=========="+pageBean.getCode());
                                text.setText(pageBean.getMsg()+"=========="+pageBean.getCode());
                            }
                        });
        }
    }

[https_api.tianapi.com_wxnew_key_8d6e3228d25298f13af4fc40ce6c9679_page_1_num_20]: https://api.tianapi.com/wxnew/?key=8d6e3228d25298f13af4fc40ce6c9679&page=1&num=20
[Center]: /images/20220606/f66d030495f141879d0f9fdb79780591.png
[Center 1]: /images/20220606/1c1b5f899ff24f69ae908d94fc7ac581.png