OKHttp网络请求

package text.bw.com.bean;
import com.google.gson.Gson;

import java.io.IOException;
import java.util.Map;

import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.MediaType;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.logging.HttpLoggingInterceptor;
/**
* Created by Administrator on 2016/11/4.
*/

public class OkHttpUtils {
private static OkHttpClient mClient;
//设置标题头格式
public static final MediaType JSON = MediaType.parse(“application/json; charset=utf-8”);

private OkHttpUtils(){}


public static OkHttpClient getOkHttpClient(){
    if(mClient==null) {
        // 可以通过实现 Logger 接口更改日志保存位置
        HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);

        mClient = new OkHttpClient.Builder()
                .addInterceptor(loggingInterceptor)

// .addInterceptor(new Interceptor() {
// @Override
// public Response intercept(Chain chain) throws IOException {
// Request request = chain.request();
// request = request.newBuilder()
// .addHeader(“key”,”value”)
// .build();
// return chain.proceed(request);
// }
// })
.build();
}
return mClient;
}
/**
* 异步post 参数为对象
* @param url
* @param obj
* @param callback
*/
public static void post(String url,Object obj,Callback callback){
post(url,new Gson().toJson(obj),callback);
}

/**
 * 异步post  参数为json
 * @param url
 * @param json
 * @param callback
 */
public static void post(String url,String json,Callback callback){
    RequestBody body = RequestBody.create(JSON,json);
    Request request =new Request.Builder()
            .url(url)
            .post(body)
            .build();
    getOkHttpClient().newCall(request).enqueue(callback);
}

/**
 * 异步post 参数为Map
 * @param url
 * @param map
 * @param callback
 */
public static void post(String url, Map map, Callback callback){
    FormBody.Builder builder = new FormBody.Builder();
    for(String key:map.keySet())
        builder.add(key,map.get(key));

    RequestBody body = builder.build();

    Request request =new Request.Builder()
            .url(url)
            .post(body)
            .build();
    getOkHttpClient().newCall(request).enqueue(callback);
}

/**
 * 异步get
 * @param url
 * @return
 */
public static void get(String url,Callback callback){

    Request request =new Request.Builder()
            .url(url)
            .build();
    getOkHttpClient().newCall(request).enqueue(callback);

}

/**
 * 同步get
 * @param url
 * @return
 */
public static String get(String url){

    Request request =new Request.Builder()
            .url(url)
            .build();
    try {
        Call call = getOkHttpClient().newCall(request);
        Response response = call.execute();
        if(response.isSuccessful()){
            return response.body().string();
        }else {
            return null;
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

}

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.Response;
import text.bw.com.bean.OkHttpUtils;

public class MainActivity extends AppCompatActivity {
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
//postObj();
postJson();
//postKey();
//getEnqueue();
//getExecute();
}

// private void postObj() {
// RequestParameter req =new RequestParameter();
// req.page = “1”;
// req.rows = “20”;
//
// OkHttpUtils.post(“http://www.tngou.net/api/cook/list“,
// req, new Callback(){
//
// @Override
// public void onFailure(Call call, IOException e) {
//
// }
//
// @Override
// public void onResponse(Call call, Response response) throws IOException {
// final String result = response.body().string();
// tv.post(new Runnable() {
// @Override
// public void run() {
// tv.setText(result);
// }
// });
// }
// });
// }

private void postJson() {
    String json ="{\"page\":\"1\",\"rows\":\"20\"}";
    OkHttpUtils.post("http://www.tngou.net/api/cook/list",
            json, new Callback(){

                @Override
                public void onFailure(Call call, IOException e) {

                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    final String result = response.body().string();
                    tv.post(new Runnable() {
                        @Override
                        public void run() {
                            tv.setText(result);
                        }
                    });
                }
            });
}

private void postKey() {
    Map map =new HashMap<>();
    map.put("page","1");
    map.put("rows","20");

    OkHttpUtils.post("http://www.tngou.net/api/cook/list",
            map, new Callback(){

                @Override
                public void onFailure(Call call, IOException e) {

                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    final String result = response.body().string();
                    tv.post(new Runnable() {
                        @Override
                        public void run() {
                            tv.setText(result);
                        }
                    });
                }
            });
}

private void getEnqueue() {
    OkHttpUtils.get("http://www.baidu.com",
            new Callback() {
                @Override
                public void onFailure(Call call, IOException e) {

                }

                @Override
                public void onResponse(Call call, Response response) throws IOException {
                    final String result = response.body().string();
                    tv.post(new Runnable() {
                        @Override
                        public void run() {
                            tv.setText(result);
                        }
                    });
                }
            });
}

private void getExecute() {
    new Thread(){
        @Override
        public void run() {
            final String result = OkHttpUtils.get("http://www.baidu.com");
            tv.post(new Runnable() {
                @Override
                public void run() {
                    tv.setText(result);
                }
            });
        }
    }.start();
}

private void initView() {
    tv = (TextView)findViewById(R.id.tv);
}

}