Php 准备从服务器发送到android的二进制文件
**请检查,这个问题是指将文件从服务器目录传输到android,而不是直接通过url* 我看到了一些问题,例如如何从www.xxx.com/file.xls传输文件“file.xls”。但在我的例子中,我创建的二进制文件如下:Php 准备从服务器发送到android的二进制文件,php,android,json,phpexcel,Php,Android,Json,Phpexcel,**请检查,这个问题是指将文件从服务器目录传输到android,而不是直接通过url* 我看到了一些问题,例如如何从www.xxx.com/file.xls传输文件“file.xls”。但在我的例子中,我创建的二进制文件如下: $objPHPExcel = new PHPExcel(); $objPHPExcel->setActiveSheetIndex(0); $objWriter = PHPExcel_IOFactory::create
$objPHPExcel = new PHPExcel();
$objPHPExcel->setActiveSheetIndex(0);
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save('record.xlsx');
exit;
因此,在我的服务器目录中创建了文件“record.xlsx”。我正在尝试从android中提取此文件。作为:
HttpClient client = new DefaultHttpClient();
HttpGet get = new HttpGet("http://my url that creates the file");
try {
HttpResponse response = client.execute(get);
InputStream data = response.getEntity().getContent();
OutputStream output = new FileOutputStream(filename);
ByteStreams.copy(data, output);
} finally {
Closeables.closeQuietly(output);
}
我需要的是获取文件“record.xlsx”作为流。任何想法,应该对文件做什么(即添加标题-内容类型:json)或任何其他想法。
服务器中的文件完全按照要求创建 将图像下载为流代码片段:
try {
//set the download URL, a url that points to a file on the internet
//this is the file to be downloaded
URL url = new URL("http://mtetno.com/file");
//create the new connection
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
//set up some things on the connection
urlConnection.setRequestMethod("GET");
urlConnection.setDoOutput(true);
//and connect!
urlConnection.connect();
//set the path where we want to save the file
//in this case, going to save it on the root directory of the
//sd card.
File SDCardRoot = Environment.getExternalStorageDirectory();
//create a new file, specifying the path, and the filename
//which we want to save the file as.
File file = new File(SDCardRoot,"somefile.ext");
//this will be used to write the downloaded data into the file we created
FileOutputStream fileOutput = new FileOutputStream(file);
//this will be used in reading the data from the internet
InputStream inputStream = urlConnection.getInputStream();
//this is the total size of the file
int totalSize = urlConnection.getContentLength();
//variable to store total downloaded bytes
int downloadedSize = 0;
//create a buffer...
byte[] buffer = new byte[1024];
int bufferLength = 0; //used to store a temporary size of the buffer
//now, read through the input buffer and write the contents to the file
while ( (bufferLength = inputStream.read(buffer)) > 0 ) {
//add the data in the buffer to the file in the file output stream (the file on the sd card
fileOutput.write(buffer, 0, bufferLength);
//add up the size so we know how much is downloaded
downloadedSize += bufferLength;
//this is where you would do something to report the prgress, like this maybe
updateProgress(downloadedSize, totalSize);
}
//close the output stream when done
fileOutput.close();
//catch some possible errors...
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
代码的工作原理与champ.Further类似——在php方面,我添加了来自此链接的标题。