okHttpClient的用法

public class MainActivity extends AppCompatActivity {    String path="https://www.zhaoapi.cn/ad/getAd";    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void getTong(View view) {        new Thread(){            @Override            public void run() {                super.run();                OkHttpClient okHttpClient = new OkHttpClient();//创建客户端对象                Request builder = new Request.Builder()                        .url(path)//指定访问路径                        .build();//提交请求                Call call = okHttpClient.newCall(builder);//用客户端调用请求对象                //开始执行 ....指定是同步还是异步                Response execute = null;//同步                try {                    execute = call.execute();                    if(execute.isSuccessful()){//判断是否请求成功                        final String pp=execute.body().string();//                        Log.i("jiba","------"+pp);                        runOnUiThread(new Runnable() {                            @Override                            public void run() {                                Toast.makeText(MainActivity.this,pp.substring(0,20),Toast.LENGTH_SHORT).show();                            }                        });                    }else{                        Log.i("jiba","你是sss!");                    }                } catch (IOException e) {                    e.printStackTrace();                }            }        }.start();    }    public void getYi(View view) {        OkHttpClient okHttpClient = new OkHttpClient();        Request builder = new Request.Builder().url(path).build();        Call call = okHttpClient.newCall(builder);        call.enqueue(new Callback() {            //请求错误所走的方法            @Override            public void onFailure(Call call, IOException e) {                e.printStackTrace();//打印错误日志            }            //请求成功所走的方法            @Override            public void onResponse(Call call, Response response) throws IOException {                String s = response.body().string();                Log.i("jiba","======"+s);            }        });    }    public void postTong(View view) {        OkHttpClient okHttpClient = new OkHttpClient();        FormBody formBody = new FormBody.Builder()                .add("mobile","18360981994")                .add("password","123456")                .build();        Request builder = new Request.Builder()                .post(formBody)                .url("https://www.zhaoapi.cn/user/reg")                .build();        Call call = okHttpClient.newCall(builder);        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {                e.printStackTrace();            }            @Override            public void onResponse(Call call, Response response) throws IOException {                final String string = response.body().string();                runOnUiThread(new Runnable() {                    @Override                    public void run() {                        Toast.makeText(MainActivity.this, string,Toast.LENGTH_SHORT).show();                    }                });            }        });    }    public void postShangchuan(View view) {        //A.检查用户是否已经允许了权限....PackageManager.PERMISSION_GRANTED代表的是用户已经允许        if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {            //B.不允许...的时候,,,请求用户允许这个权限            // Activity arg0代表当前的activity, @NonNull String[] arg1请求的权限的数组,也就是需要请求允许哪些权限, int arg2请求码            ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, 1001);        }else {            //允许...上传文件            postFile();        }    }    private void postFile() {        OkHttpClient okHttpClient = new OkHttpClient();        //2.指定文件的类型 image/jpg image/png video/mp4 ...mimeType        MediaType mediaType = MediaType.parse("text/x-markdown;charset=utf-8");        //3.指定要上传的文件对象        File file = new File(Environment.getExternalStorageDirectory(),"wang.txt");        Request request = new Request.Builder()                //上传文件的时候请求体使用RequestBody.create()获取okhttp3.MediaType contentType                // 文件的类型,@NotNull java.io.File file上传的文件对象                .post(RequestBody.create(mediaType, file))                .url("https://api.github.com/markdown/raw")                .build();        Call call = okHttpClient.newCall(request);        call.enqueue(new Callback() {            @Override            public void onFailure(Call call, IOException e) {            }            @Override            public void onResponse(Call call, final Response response) throws IOException {                runOnUiThread(new Runnable() {                    @Override                    public void run() {                        try {                            Toast.makeText(MainActivity.this,response.body().string(),Toast.LENGTH_SHORT).show();                        } catch (IOException e) {                            e.printStackTrace();                        }                    }                });            }        });    }}

布局

<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"    android:orientation="vertical"    android:layout_height="match_parent" tools:context="one.bw.com.okhttpqingqiu.MainActivity">   <Button       android:layout_width="match_parent"       android:layout_height="wrap_content"       android:text="okhttp的get同步"       android:onClick="getTong"       />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="okhttp的get异步"        android:onClick="getYi"        />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="okhttp的post异步"        android:onClick="postTong"        />    <Button        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="post上传文件"        android:onClick="postShangchuan"        /></LinearLayout>