OkHttp3 + retrofit2 封装

0.下载文件

1.gradle 添加

compile 'com.squareup.retrofit2:retrofit:2.1.0'
compile 'com.squareup.retrofit2:converter-gson:2.1.0'
compile 'com.squareup.retrofit2:adapter-rxjava:2.1.0'

compile 'com.squareup.okhttp3:okhttp:3.4.1'
compile 'com.squareup.okio:okio:1.9.0'

2.AndroidManifest.xml 权限 　　

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

3.Application中初始化 

HttpUtil.getInstance().init(this, "http://baiqi.ej-cloud.com:8070/iot/");

4.调用

                HttpUtil.getInstance().get(
                        new HttpUtil.Builder()
                                .url("user/token/init")
                                .params("key", "1")
                                .params("type", "4")
                                .callBackSuccess(new CallBackSuccess() {
                                    @Override
                                    public void onSuccess(String json) {
                                        TopicResponse topicResponse = JsonUtil.fromJson(json, TopicResponse.class);
                                        tv.setText(topicResponse.data.id);
                                    }
                                }));

 5.添加上传图片功能 HttpUtil.java文件中

private static final MediaType MEDIA_TYPE_PNG = MediaType.parse("image/png");
    public void uploadImages(List<String> selectedImages, String url) {
        // mImgUrls为存放图片的url集合
        MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);
        for (int i = 0; i < selectedImages.size(); i++) {
            File f = new File(selectedImages.get(i));
            if (f != null) {
                builder.addFormDataPart("img" + i, f.getName(), RequestBody.create(MEDIA_TYPE_PNG, f));
            }
        }

        MultipartBody requestBody = builder.build();
        //构建请求
        Request request = new Request.Builder()
                .url(url)//地址
                .post(requestBody)//添加请求体
                .build();
        okHttpClient.newCall(request).enqueue(new okhttp3.Callback() {
            @Override
            public void onFailure(okhttp3.Call call, IOException e) {
                Log.wtf(TAG, "request " + call.request().url());
                Log.wtf(TAG, "上传失败:e.getLocalizedMessage() = " + e.getLocalizedMessage());
            }

            @Override
            public void onResponse(okhttp3.Call call, okhttp3.Response response) throws IOException {
                Log.wtf(TAG, "request " + call.request().url());
                Log.wtf(TAG, "上传照片成功：response = " + response.body().string());
            }
        });
    }

调用  

HttpUtil.getInstance().uploadImages(selectedImages, "http://baiqi.ej-cloud.com/iotlife/user/opinion/imgUpload&key=1&image=uicon&token="
               +token+"&feedbackId" +feedbackId );

参考:

https://github.com/gengqiquan/HttpUtil

https://github.com/hongyangAndroid/okhttputils