Android 6.0 release removes support for the Apache HTTP client. If your app is using this client and targets Android 2.3 (API level 9) or higher, use the HttpURLConnection class instead.apache httpclient上傳文件非常方便，通過HttPRequestBase.setEntity(MultipartEntity)File uploadFile = new File(mUploadFilePath);MultipartEntity multipart = new MultipartEntity();multipart.addPart(mFilePartName, new FileBody(uploadFile, uploadFile.getName()));HttpPost post = new HttpPost("url");post.setEntity(multipart);HttpURLConnection中我們也借助MultipartEntity，而在Android 6.0上要使用這個類的話，我們需要在gradle中配置：useLibrary ‘org.apache.http.legacy’ //Android 6.0 release removes support for the Apache HTTP clientFile uploadFile = new File(mUploadFilePath);MultipartEntity multipart = new MultipartEntity();multipart.addPart(mFilePartName, new FileBody(uploadFile, uploadFile.getName()));HttpURLConnection connection = new URL("url").openConnection();connection.setRequestMethod("POST");connection.setDoOutput(true);Header type = multipart.getContentType();if (type != null) { connection.addRequestProperty(type.getName(), type.getValue());}Header encoding = multipart.getContentEncoding();if (encoding != null) { connection.addRequestProperty(encoding.getName(), encoding.getValue());}if (multipart.isChunked() || multipart.getContentLength() < 0) { connection.setChunkedStreamingMode(0);} else if (multipart.getContentLength() <= 8192) { // Buffer short, fixed-length request bodies. This costs memory, but permits the request // to be transparently retried if there is a connection failure. connection.addRequestProperty("Content-Length", Long.toString(multipart.getContentLength()));} else { connection.setFixedLengthStreamingMode((int) multipart.getContentLength());}OutputStream out = connection.getOutputStream();multipart.writeTo(out);out.close();
