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OKHttp|OKHttp 的基本封装

//封装的工具类 package com.example.okhttp_fenzhuang.util; import android.os.Handler; import java.io.IOException; import java.util.Map; import java.util.Set; import java.util.concurrent.TimeUnit; import okhttp3.Call; import okhttp3.Callback; import okhttp3.FormBody; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; import okhttp3.Response;
public class RequestDataUtil { private static OkHttpClient client ; private static Handler handler ; //构造方法 private RequestDataUtil() { client = new OkHttpClient.Builder() .connectTimeout( 10 , TimeUnit. SECONDS ) .writeTimeout( 10 , TimeUnit. SECONDS ) .readTimeout( 10 , TimeUnit. SECONDS ) .build(); handler = new Handler(); } private static final RequestDataUtil dataUtil = new RequestDataUtil(); public static RequestDataUtil getInstance(){ return dataUtil ; } //定义接口 public interface IcallBack{ void onResponse(String jsonData); //请求数据是Json数据时使用 } public interface IcallBack2{ void onResponse( byte [] bytes); //请求数据是时使用 } public interface IcallBack3{ void onResponse(String jsonData); //请求数据是Json数据时使用 } //将编程的代码运行到主线程中 //处理请求网络成功的方法,返回的结果是Json字符串 public static void requestJsonDataOk( final String jsonData, final IcallBack icallBack){ handler .post( new Runnable() { @Override public void run() { if ( icallBack != null ){ icallBack .onResponse( jsonData ); } } }); } public static void requestJsonDataOk3( final String jsonData, final IcallBack3 icallBack){ handler .post( new Runnable() { @Override public void run() { if ( icallBack != null ){ icallBack .onResponse( jsonData ); } } }); } //处理请求网络成功的方法,返回的结果是byte数组 public static void requestByteOk( final byte [] bytes, final IcallBack2 icallBack){ handler .post( new Runnable() { @Override public void run() { if ( icallBack != null ){ icallBack .onResponse( bytes ); } } }); } //------------------------------------------------------------------------------------------------------- //提供外部调用的方法 /** * 请求指定的URL返回的结果是Json字符串 */ public static void setRequestJsonData(String myUrl, final IcallBack icallBack){ Request request = new Request.Builder().url(myUrl).build(); Call call = client .newCall(request); call.enqueue( new Callback() { @Override public void onFailure(Call call, IOException e) { //请求失败 } @Override public void onResponse(Call call, Response response) throws IOException { //请求成功 String jsonData = https://www.it610.com/article/response.body().string(); requestJsonDataOk (jsonData, icallBack ); //调用请求成功时执行的方法 } }); } /** * 请求指定的URL返回的结果是byte数组 */ public static void setRrequestByte(String myUrl, final IcallBack2 icallBack){ Request request = new Request.Builder().url(myUrl).build(); Call call = client .newCall(request); call.enqueue( new Callback() { @Override public void onFailure(Call call, IOException e) {} @Override public void onResponse(Call call, Response response) throws IOException { byte [] bytes = response.body().bytes(); requestByteOk (bytes, icallBack ); //调用请求成功时执行的方法 } }); } /** * 请求指定的URL返回的结果是Json字符串 这个是提交表单 */ public static void setRequestJsonData3(String myUrl, Map map, final IcallBack3 icallBack3){ //创建表单 FormBody.Builder builder = new FormBody.Builder(); //得到map集合当中的数据 for (Map.Entry entry : map.entrySet() ) { builder.add(entry.getKey(),entry.getValue()); } RequestBody requestBody = builder.build(); Request request = new Request.Builder().post(requestBody).url(myUrl).build(); Call call = client .newCall(request); call.enqueue( new Callback() { @Override public void onFailure(Call call, IOException e) {} @Override public void onResponse(Call call, Response response) throws IOException { //请求成功 String jsonData = response.body().string(); requestJsonDataOk3 (jsonData, icallBack3 ); //调用请求成功时执行的方法 } });
} } //网络请求的工具类
------------------------------------------------------------------ package com.example.okhttp_fenzhuang; import android.graphics.Bitmap; import android.graphics.BitmapFactory; 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.ImageView; import android.widget.TextView; import com.example.okhttp_fenzhuang.util.RequestDataUtil; import com.google.gson.Gson; import java.util.HashMap;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private Button btn_img ; private Button btn_log ; private Button btn_request ; private ImageView imageView ; private TextView txt_content ;
private String myUrlJson = "http://api.tianapi.com/world/?key=55acaf346503d8d5f98af8dec90ceb01&num=10" ; private String muUrlImg = "http://s13.sinaimg.cn/mw690/003WdrRCty6DP7FOPi48c&690" ; private String muUrlPost = "https://www.zhaoapi.cn/user/getUserInfo" ; @Override protected void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); setContentView(R.layout. activity_main ); initView(); //初始化 }
private void initView() { //获取资源id btn_img = findViewById(R.id. btn_img ); 。。。。。。。。。自己写 }
@Override public void onClick(View view) { //得到网络请求的工具类 RequestDataUtil dataUtil = RequestDataUtil. getInstance (); switch (view.getId()){ case R.id. btn_img : //下载图片 dataUtil. setRrequestByte ( muUrlImg , new RequestDataUtil.IcallBack2() { @Override public void onResponse( byte [] bytes) { Bitmap bitmap = BitmapFactory. decodeByteArray (bytes, 0 , bytes. length ); imageView .setImageBitmap(bitmap); } }); break ; case R.id. btn_log : //模拟登陆Post请求 HashMap map = new HashMap<>(); map.put( "uid" , "123" ); map.put( "id" , "7" ); dataUtil. setRequestJsonData3 ( muUrlPost , map, new RequestDataUtil.IcallBack3() { @Override public void onResponse(String jsonData) { Gson gson = new Gson(); MyGson myGson = gson.fromJson(jsonData, MyGson. class ); String msg = myGson.getMsg(); txt_content .setText(msg); } }); break ; case R.id. btn_request : //请求的是json数据 dataUtil. setRequestJsonData ( myUrlJson , new RequestDataUtil.IcallBack() { @Override public void onResponse(String jsonData) { Log. d ( "zzzz" , "onResponse: " +jsonData); } }); break ; } } }

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