java - 将文件发送到 Http 时出现 OutputStream 内存不足错误

Question

较小的文件成功上传到服务器，但当涉及较大的文件时，下面的代码会抛出内存不足错误。任何解决方案？？ .提前致谢。

public void addFilePart(String fieldName, File uploadFile)
                throws IOException {
            String fileName = uploadFile.getName();
            writer.append("--" + boundary).append(LINE_FEED);
            writer.append(
                    "Content-Disposition: form-data; name=\"" + fieldName
                            + "\"; filename=\"" + fileName + "\"")
                    .append(LINE_FEED);
            writer.append(
                    "Content-Type: "
                            + URLConnection.guessContentTypeFromName(fileName))
                    .append(LINE_FEED);
            writer.append("Content-Transfer-Encoding: binary").append(LINE_FEED);
            writer.append(LINE_FEED);
            writer.flush();

            FileInputStream inputStream = new FileInputStream(uploadFile);
            byte[] buffer = new byte[4096];
            int bytesRead = -1;
            while ((bytesRead = inputStream.read(buffer)) != -1) {
                outputStream.write(buffer, 0, bytesRead);
            }
            outputStream.flush();
            inputStream.close();

            writer.append(LINE_FEED);
            writer.flush();
        }

Answer 1

使用 chunchedStreamingMode 它将帮助您以特定大小分块数据。

con.setChunkedStreamingMode(1024);

这个链接可以帮到你 Upload large file in Android without outofmemory error