Http請求

public class HttpUtils {
public static String get(String urlString){

    OkHttpClient okHttpClient = new OkHttpClient.Builder()
            .addInterceptor(new LoggingInterceptor())//日誌攔截器
            .connectTimeout(10, TimeUnit.SECONDS)//連線超時
            .readTimeout(10,TimeUnit.SECONDS)//讀取超時
            .writeTimeout(10,TimeUnit.SECONDS)//寫入超時
            .build();

    Request request = new Request.Builder().url(urlString).get().build();

    try {
        Response response = okHttpClient.newCall(request).execute();
        String result = response.body().string();
        Log.i("dt","請求結果："+result);
        return result;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return "";
}

public static String postForm(String url,String[] name,String[] value){

    OkHttpClient okHttpClient = new OkHttpClient.Builder()
            .addInterceptor(new LoggingInterceptor())//日誌攔截器
            .connectTimeout(10, TimeUnit.SECONDS)//連線超時
            .readTimeout(10,TimeUnit.SECONDS)//讀取超時
            .writeTimeout(10,TimeUnit.SECONDS)//寫入超時
            .build();

    FormBody.Builder formBuild = new FormBody.Builder();
    for (int i = 0; i < name.length; i++) {
        formBuild.add(name[i],value[i]);
    }

    Request request = new Request.Builder().url(url).post(formBuild.build()).build();

    try {
        Response response = okHttpClient.newCall(request).execute();

        String result = response.body().string();
        Log.i("dt",result);
        return result;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return "";
}

public static String postFile(String url,String[] name,String[] value,String fileParamName,File file){

    OkHttpClient okHttpClient = new OkHttpClient.Builder()
            .addInterceptor(new LoggingInterceptor())//日誌攔截器
            .connectTimeout(10, TimeUnit.SECONDS)//連線超時
            .readTimeout(10,TimeUnit.SECONDS)//讀取超時
            .writeTimeout(10,TimeUnit.SECONDS)//寫入超時
            .build();

    MultipartBody.Builder requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM);
    if(file != null){
        // MediaType.parse() 裡面是上傳的檔案型別。
        RequestBody body = RequestBody.create(MediaType.parse("image/*"), file);
        String filename = file.getName();
        // 引數分別為: 檔案引數名 ，檔名稱 ， RequestBody
        requestBody.addFormDataPart(fileParamName, "jpg", body);
    }
    if (name!=null) {
        for (int i = 0; i < name.length; i++) {
            requestBody.addFormDataPart(name[i], value[i]);
        }
    }

    Request request = new Request.Builder().url(url).post(requestBody.build()).build();

    try {
        Response response = okHttpClient.newCall(request).execute();
        if (response.code()==200) {
            return response.body().string();
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return "";
}

public static String postJson(String url,String jsonString){

    OkHttpClient okHttpClient = new OkHttpClient();

    RequestBody requestBody = RequestBody.create(MediaType.parse("application/json"),jsonString);

    Request request = new Request.Builder().url(url).post(requestBody).build();

    try {
        Response response = okHttpClient.newCall(request).execute();

        return response.body().string();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return "";
}
}
 

自定義類

public class LoggingInterceptor implements Interceptor {
@Override
public Response intercept(Interceptor.Chain chain) throws IOException {
    //這個chain裡面包含了request和response，所以你要什麼都可以從這裡拿
    Request request = chain.request();

    long t1 = System.nanoTime();//請求發起的時間
    Log.i("dt",String.format("傳送請求 %s on %s%n%s",
            request.url(), chain.connection(), request.headers()));

    Response response = chain.proceed(request);

    long t2 = System.nanoTime();//收到響應的時間

    //這裡不能直接使用response.body().string()的方式輸出日誌
    //因為response.body().string()之後，response中的流會被關閉，程式會報錯，我們需要創建出一
    //個新的response給應用層處理
    ResponseBody responseBody = response.peekBody(1024 * 1024);

    Log.i("dt",String.format("接收響應: [%s] %n返回json:【%s】 %.1fms%n%s",
            response.request().url(),
            responseBody.string(),
            (t2 - t1) / 1e6d,
            response.headers()));

    return response;
}
}