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  • 团队开发冲刺日(十)

      HttpURLConnection同时上传图片和文件仍旧未能实现,在尝试未果之后我翻看了一下OKHttp的上传方法,下面做出总结:

      参考博客:

      https://blog.csdn.net/nsplnpbjy/article/details/104690131

      https://blog.csdn.net/yancychas/article/details/78212701

      https://blog.csdn.net/gxflh/article/details/81133337?depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-1&utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromBaidu-1

      OKHttp使用思路与HttpURLConnection类似,主要是在设置多个参数方面,可以使用Request.Builder,如下列代码:

      原文地址:https://www.cnblogs.com/shenchanghui/p/6407271.html

     1  public void call(Subscriber<? super String> subscriber) {
     2                 MultipartBody.Builder multipartBodyBuilder = new MultipartBody.Builder();
     3                 multipartBodyBuilder.setType(MultipartBody.FORM);
     4                 //遍历map中所有参数到builder
     5                 if (params != null){
     6                     for (String key : params.keySet()) {
     7                         multipartBodyBuilder.addFormDataPart(key, params.get(key));
     8                     }
     9                 }
    10                 //遍历paths中所有图片绝对路径到builder,并约定key如“upload”作为后台接受多张图片的key
    11                 if (files != null){
    12                     for (File file : files) {
    13                         multipartBodyBuilder.addFormDataPart(pic_key, file.getName(), RequestBody.create(MEDIA_TYPE_PNG, file));
    14                     }
    15                 }

    这里使用Builder进行多个参数的封装。

    基本用法参考:https://www.jianshu.com/p/da4a806e599b

     1 MediaType mediaType = MediaType.parse("text/x-markdown; charset=utf-8");
     2 String requestBody = "I am Jdqm.";
     3 Request request = new Request.Builder()
     4         .url("https://api.github.com/markdown/raw")
     5         .post(RequestBody.create(mediaType, requestBody))
     6         .build();
     7 OkHttpClient okHttpClient = new OkHttpClient();
     8 okHttpClient.newCall(request).enqueue(new Callback() {
     9     @Override
    10     public void onFailure(Call call, IOException e) {
    11         Log.d(TAG, "onFailure: " + e.getMessage());
    12     }
    13 
    14     @Override
    15     public void onResponse(Call call, Response response) throws IOException {
    16         Log.d(TAG, response.protocol() + " " +response.code() + " " + response.message());
    17         Headers headers = response.headers();
    18         for (int i = 0; i < headers.size(); i++) {
    19             Log.d(TAG, headers.name(i) + ":" + headers.value(i));
    20         }
    21         Log.d(TAG, "onResponse: " + response.body().string());
    22     }
    23 });

    注意默认是GET请求,使用POST请求需要行4的写法声明.post()

    接下来就是实战阶段,看看能不能使用OKHttp实现后台功能,另外冲刺日延期到下周一,加油。

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  • 原文地址:https://www.cnblogs.com/20183711PYD/p/12754874.html
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