nanoHTTPD 接收 okhttp 上传的文件

Explained before, the client use okhttp upload a file just like the follow code

 RequestBody requestBody = new MultipartBody.Builder()                .setType(MultipartBody.FORM)        //sourceFile is a File as you know                 .addFormDataPart("image_file_1", "logo-square1.png", RequestBody.create(MediaType.parse("image/png"), sourceFile))                .build();        Request request = new Request.Builder()                .url(url)                .post(requestBody)                .build();        Response response = client.newCall(request).execute();

The following code is just what you want:

@Override    public Response serve(IHTTPSession session) {        Method method = session.getMethod();        // ▼ 1、parse post body ▼        Map<String, String> files = new HashMap<>();        if (Method.POST.equals(method) || Method.PUT.equals(method)) {            try {                session.parseBody(files);            } catch (IOException ioe) {                return getResponse("Internal Error IO Exception: " + ioe.getMessage());            } catch (ResponseException re) {                return newFixedLengthResponse(re.getStatus(), MIME_PLAINTEXT, re.getMessage());            }        }        //after the body parsed, by default nanoHTTPD will save the file to cache and put it into params( "image_file_1" as key and the value is "logo-square1.png");        //files key is just like "image_file_1", and the value is nanoHTTPD's template file path in cache        // ▲ 1、parse post body ▲        // ▼ 2、copy file to target path xiaoyee ▼        Map<String, String> params = session.getParms();        for (Map.Entry<String, String> entry : params.entrySet()) {            final String paramsKey = entry.getKey();            if (paramsKey.contains("image_file_1")) {                final String tmpFilePath = files.get(paramsKey);                final String fileName = paramsKey;                final File tmpFile = new File(tmpFilePath);                final File targetFile = new File(mCurrentDir + fileName);                LogUtil.log("copy file now, source file path: %s,target file path:%s", tmpFile.getAbsoluteFile(), targetFile.getAbsoluteFile());                //a copy file methoed just what you like                copyFile(tmpFile, targetFile);                //maybe you should put the follow code out                return getResponse("Success");            }        }        // ▲ 2、copy file to target path xiaoyee ▲        return getResponse("Error 404: File not found");    }

本文为自己在博客的一个备份，我的原回答在：
https://stackoverflow.com/questions/28739744/nanohttpd-how-to-save-uploaded-file-to-sdcard-folder/43154040#43154040
author：xiaoyee