RetrolFit+rxjava + okHttp与服务 交互的例子

一.android端 ：

1.网络请求接口：

package com.example.yourdream.retrofitdemo;


import data.UserInfo;
import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.POST;
import retrofit2.http.Query;
import rx.Observable;

/**
 * Created by yourdream on 2016/11/18.
 */

public interface HttpRequest {

    /**
     * 普通的Retrolfit请求,返回的是一个Call
     * @param username
     * @param password
     * @return
     */
    @POST("WebService/index.jsp" )
    Call<UserInfo> login(@Query("username") String username, @Query("password") String password);


    /**
     * 支持rxjava，返回的是一个Observable,被观察对象
     *
     * @param username
     * @param password
     * @return
     */
    @GET("WebService/index.jsp")
    Observable<UserInfo> loginByRxjava(@Query("username") String username, @Query("password") String password);
}

2.Userinfo信息类：

package data;

/**
 * Created by yourdream on 2016/11/21.
 */

public class UserInfo {

    private String password;

    private String username;

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }


}

3.主mainActivity

package com.example.yourdream.retrofitdemo;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import data.UserInfo;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
import retrofit2.Retrofit;
import retrofit2.adapter.rxjava.RxJavaCallAdapterFactory;
import retrofit2.converter.gson.GsonConverterFactory;
import rx.Subscriber;
import rx.android.schedulers.AndroidSchedulers;
import rx.schedulers.Schedulers;

public class MainActivity extends Activity {

    private TextView normaltxt;
    private TextView rxjavatxt;

    private Button normalBtn;
    private Button rxjava;

    private static final String BASE_URL = "http://192.168.4.42:8080/";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        normaltxt = (TextView)findViewById(R.id.txt);
        rxjavatxt = (TextView)findViewById(R.id.rxjava_txt);

        normalBtn = (Button)findViewById(R.id.norml);
        rxjava = (Button)findViewById(R.id.rxjava);


        EventClick click = new EventClick();
        normalBtn.setOnClickListener(click);
        rxjava.setOnClickListener(click);


    }

    private class EventClick implements View.OnClickListener
    {
        @Override
        public void onClick(View view) {
            switch(view.getId())
            {
                case R.id.norml:
                    requestNormal();
                    break;
                case R.id.rxjava:
                    requestByRxjava();
                    break;

            }
        }
    }

    /**
     * Retrofit普通 请求
     */
    private void requestNormal()
    {
        Retrofit retrofit = new Retrofit.Builder()
                        .addConverterFactory(GsonConverterFactory.create())
                        .baseUrl(BASE_URL)
                        .build();

        HttpRequest service = retrofit.create(HttpRequest.class);

        Call<UserInfo> call = service.login("liu", "123");

        call.enqueue(new Callback<UserInfo>() {
            @Override
            public void onResponse(Call<UserInfo> call, Response<UserInfo> response) {
                //请求成功操作
                normaltxt.setText("82---"+response.body().getUsername());
            }
            @Override
            public void onFailure(Call<UserInfo> call, Throwable t) {
                //请求失败操作
                normaltxt.setText("87--"+t.getMessage());
            }
        });
    }

    /**
     * Retrofit支持rxjava的网络请求
     */
    private void requestByRxjava()
    {
        Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .addConverterFactory(GsonConverterFactory.create())
                .addCallAdapterFactory(RxJavaCallAdapterFactory.create())
                .build();

        HttpRequest service = retrofit.create(HttpRequest.class);

        service.loginByRxjava("liuhulai", "123")
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Subscriber<UserInfo>() {
                    @Override
                    public void onCompleted() {
                        Toast.makeText(MainActivity.this, "Get Top Movie Completed", Toast.LENGTH_SHORT).show();
                    }

                    @Override
                    public void onError(Throwable e) {

                        Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_SHORT).show();
                    }

                    @Override
                    public void onNext(UserInfo movieEntity) {
                        rxjavatxt.setText("124----"+movieEntity.getUsername());
                    }
                });
    }
}

二.服务端 jsp页面：

<%@ page contentType="text/html; charset=utf-8" language="java"%>
<%@ page import= "java.io.InputStream "%>
<%@ page import="java.io.BufferedReader"  %>
<%@ page import="java.io.InputStreamReader" %>
<%@ page import="java.io.PrintWriter" %>
<%@ page import="org.json.JSONObject" %>

<%

	
	System.out.println("12-------username:"+request.getParameter("username"));
	System.out.println("12-------pwd:"+request.getParameter("username"));
	
	/* BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream(), "UTF-8"));
	System.out.println("14-------ReadClientInputStream........."+(br==null));
	StringBuffer sb =new StringBuffer("");  
	String temp;
	
	while((temp=br.readLine())!=null)
	{  
		sb.append(temp);  
		System.out.println("21........."+temp);
	}  
	br.close();  
	System.out.println("ReadClientInputStream........."+sb); */
	
	JSONObject recObj= new JSONObject();
	recObj.put("username", "liuxb");
	recObj.put("password","123456");
	
	PrintWriter pw=response.getWriter();
	pw.write(recObj.toString());
	pw.flush();
	pw.close();

   
%>
<html>
 <head>
   
     <script language="javascript">
    
     </script>
     
  </head>
  <body >
    <div>
                     提交监听数据页面
    </div>
    
      
  </body>
</html>

3.布局文件：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context="com.example.yourdream.retrofitdemo.MainActivity">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/norml"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="普通请求"/>

        <Button
            android:id="@+id/rxjava"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="rxjava请求"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/txt"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Hello World!" />

        <TextView
            android:id="@+id/rxjava_txt"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="Hello World!" />

    </LinearLayout>

</LinearLayout>