android OkHttp用法和添加日志拦截器

一、OkHttp的用法

  public static String get(String urlString){

        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .addInterceptor(new LoggingInterceptor())//日志拦截器
                .connectTimeout(10, TimeUnit.SECONDS)//连接超时
                .readTimeout(10,TimeUnit.SECONDS)//读取超时
                .writeTimeout(10,TimeUnit.SECONDS)//写入超时
                .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\",\"请求结果：\"+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())//日志拦截器
                .connectTimeout(10, TimeUnit.SECONDS)//连接超时
                .readTimeout(10,TimeUnit.SECONDS)//读取超时
                .writeTimeout(10,TimeUnit.SECONDS)//写入超时
                .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())//日志拦截器
                .connectTimeout(10, TimeUnit.SECONDS)//连接超时
                .readTimeout(10,TimeUnit.SECONDS)//读取超时
                .writeTimeout(10,TimeUnit.SECONDS)//写入超时
                .build();

        MultipartBody.Builder requestBody = new MultipartBody.Builder().setType(MultipartBody.FORM);
        if(file != null){
            // MediaType.parse() 里面是上传的文件类型。
            RequestBody body = RequestBody.create(MediaType.parse(\"image/*\"), file);
            String filename = file.getName();
            // 参数分别为: 文件参数名 ，文件名称 ， 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 \"\";
    }

二、添加日志拦截器

public class LoggingInterceptor implements Interceptor {
    @Override
    public Response intercept(Interceptor.Chain chain) throws IOException {
        //这个chain里面包含了request和response，所以你要什么都可以从这里拿
        Request request = chain.request();

        long t1 = System.nanoTime();//请求发起的时间
        Log.i(\"dt\",String.format(\"发送请求 %s on %s%n%s\",
                request.url(), chain.connection(), request.headers()));

        Response response = chain.proceed(request);

        long t2 = System.nanoTime();//收到响应的时间

        //这里不能直接使用response.body().string()的方式输出日志
        //因为response.body().string()之后，response中的流会被关闭，程序会报错，我们需要创建出一
        //个新的response给应用层处理
        ResponseBody responseBody = response.peekBody(1024 * 1024);

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

        return response;
    }
}