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

所用到的接口:(天行数据)

先看效果：

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:

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());
                        }
                    });
    }
}