如何在粘貼的代碼中添加自定義標題？

Question

我已經在某些庫中找到了一些代碼，我已經使用了，我想知道如何從選項中添加自定義標頭

。它應該從JS接收本地（Java）的東西。 我不擅長Java。任何幫助，將不勝感激。

這是它來自的存儲庫。 https://github.com/tranquangvu/react-native-uploader/

... 

@ReactMethod 
    public void upload(ReadableMap options, Callback complete) { 

    final Callback completeCallback = complete; 

    try { 
     MultipartBody.Builder mRequestBody = new MultipartBody.Builder() 
       .setType(MultipartBody.FORM); 

     ReadableArray files = options.getArray("files"); 
     String url = options.getString("url"); 
     String method = options.getString("method"); 

     if(options.hasKey("params")){ 
     ReadableMap data = options.getMap("params"); 
     ReadableMapKeySetIterator iterator = data.keySetIterator(); 

     while(iterator.hasNextKey()){ 
      String key = iterator.nextKey(); 
      if(ReadableType.String.equals(data.getType(key))) { 
      mRequestBody.addFormDataPart(key, data.getString(key)); 
      } 
     } 
     } 

     if(files.size() != 0){ 
     for(int fileIndex=0 ; fileIndex<files.size(); fileIndex++){ 
      ReadableMap file = files.getMap(fileIndex); 
      String uri = file.getString("filepath"); 

      Uri file_uri; 
      if(uri.substring(0,10).equals("content://")){ 
      file_uri = Uri.parse(convertMediaUriToPath(Uri.parse(uri))); 
      } 
      else{ 
      file_uri = Uri.parse(uri); 
      } 

      File imageFile = new File(file_uri.getPath()); 

      if(imageFile == null){ 
      Log.d(TAG, "FILE NOT FOUND"); 
      completeCallback.invoke("FILE NOT FOUND", null); 
       return; 
      } 

      String mimeType = "image/png"; 
      if(file.hasKey("filetype")){ 
      mimeType = file.getString("filetype"); 
      } 
      MediaType mediaType = MediaType.parse(mimeType); 
      String fileName = file.getString("filename"); 
      String name = fileName; 
      if(file.hasKey("name")){ 
      name = file.getString("name"); 
      } 


      mRequestBody.addFormDataPart(name, fileName, RequestBody.create(mediaType, imageFile)); 
     } 
     } 

     MultipartBody requestBody = mRequestBody.build(); 
     Request request; 

     // NOTE: The author seems added the header statically, I wonder how can I add a custom header. 

     if(method.equals("PUT")) { 
     request = new Request.Builder() 
       .header("Accept", "application/json") 
       .url(url) 
       .put(requestBody) 
       .build(); 
     } 
     else{ 
     request = new Request.Builder() 
       .header("Accept", "application/json") 
       .url(url) 
       .post(requestBody) 
       .build(); 
     } 

     Response response = client.newCall(request).execute(); 
     if (!response.isSuccessful()) { 
      Log.d(TAG, "Unexpected code" + response); 
      completeCallback.invoke(response, null); 
      return; 
     } 

     completeCallback.invoke(null, response.body().string()); 
    } catch(Exception e) { 
     Log.d(TAG, e.toString()); 
    } 
    } 

Answer 1

只是指示okhttp.Request.Builder插入一個更多頭：

request = new Request.Builder() 
    .header("Accept", "application/json") 
    .header("X-example-header", "example-value") 
    .url(url) 
    .put(requestBody) 
    .build(); 

編輯（例如，專門爲那些誰拒絕閱讀的文檔本身）：

或者使用這樣的：

Request.Builder builder = new Request.Builder() 
    .header("Accept", "application/json"); 
for(int i = 0; i < 10; i++) { 
    builder.header("X-example-header-" + i, "example-value-" + i) 
} 
request = builder 
    .url(url) 
    .put(requestBody) 
    .build();