outputstream

问题 Existing ways of adding content to an S3 file using methods in AmazonS3 class are by putObject with an InputStream Creating a local file with content and uploading it to S3. Is there a way an OutputStream can be created for an existing S3 object to which values from a list can be written into? I see there are no APIs for doing so. 回答1: It's possible to create an S3OutputStream which wraps the AmazonS3 client. See this gist for the implementation: https://gist.github.com/blagerweij

问题 We are using a servlet filter to inject a string into the response before returning it. We are using an implementation of HttpServletResponseWrapper to do this. The wrapper class is called from the `doFilter() method: chain.doFilter(request, responseWrapper); The code snipppet from our ResponseWrapper class is: @Override public ServletOutputStream getOutputStream() throws IOException { String theString = "someString"; // Get a reference to the superclass's outputstream. ServletOutputStream

问题 This piece of code works if i compiled it with mingw32 on windows 10. and emits right result, as you can see below : C:\prj\cd>bin\main.exe 1°à€3§4ç5@の,は,でした,象形字 ; Indeed when i try to compile it with Visual Studio 17, same code emits wrong chracters /out:prova.exe prova.obj C:\prj\cd>prova.exe 1°à €3§4ç5@ã®,ã¯,ã§ã—ãŸ,象形字 ; C:\prj\cd> here source code : #include <windows.h> #include <io.h> #include <fcntl.h> #include <stdio.h> #include <string> #include <iostream> int main ( void )

问题 I'm using angular to download big files, for the backend I'm using spring boot, here's the code of the end point: @RequestMapping(value = "/download", method = RequestMethod.GET) public StreamingResponseBody download(@PathVariable String path) throws IOException { final InputStream file =azureDataLakeStoreService.readFile(path); return (os) -> { readAndWrite(file , os); }; } private void readAndWrite(final InputStream is, OutputStream os) throws IOException { byte[] data = new byte[2048]; int

问题 I have written this code snippet to download image files from firebase storage to local storage. contentResolver.openOutputStream(uri)?.use { ops -> // * Firebase.storage.getReferenceFromUrl(model.mediaUrl).stream.await().stream.use { ips -> val buffer = ByteArray(1024) while (true) { val bytes = ips.read(buffer) // * if (bytes == -1) break ops.write(buffer, 0, bytes) // * } } } In the marked lines, android studio is giving me Inappropriate blocking method call warning, highlighting

问题 I have written this code snippet to download image files from firebase storage to local storage. contentResolver.openOutputStream(uri)?.use { ops -> // * Firebase.storage.getReferenceFromUrl(model.mediaUrl).stream.await().stream.use { ips -> val buffer = ByteArray(1024) while (true) { val bytes = ips.read(buffer) // * if (bytes == -1) break ops.write(buffer, 0, bytes) // * } } } In the marked lines, android studio is giving me Inappropriate blocking method call warning, highlighting

问题 I have written this code snippet to download image files from firebase storage to local storage. contentResolver.openOutputStream(uri)?.use { ops -> // * Firebase.storage.getReferenceFromUrl(model.mediaUrl).stream.await().stream.use { ips -> val buffer = ByteArray(1024) while (true) { val bytes = ips.read(buffer) // * if (bytes == -1) break ops.write(buffer, 0, bytes) // * } } } In the marked lines, android studio is giving me Inappropriate blocking method call warning, highlighting

问题 So I looked up this question and tried it, but with no success. My code should be testing if the method is correctly outputing the text onto the console by reading it back in using Streams . ByteArrayOutputStream outStream = new ByteArrayOutputStream(); PrintStream myStream = new PrintStream(outStream); System.setOut(myStream); o.doSomething(); //printing out Hi System.out.flush(); System.setOut(savedOldStream);//setting it back to System.out assertEquals(outStream.toString(),"Hi"); but

来源： https://stackoverflow.com/questions/25571051/count-the-bytes-written-to-file-via-bufferedwriter-formed-by-gzipoutputstream

问题 I am writing a program that will output data to a .txt file, that can be read by a person using a program like NotePad. Perhaps not necessarily ASCII, but something that the user can understand. Which one of these do I use? ByteArrayOutputStream FileOutputStream FilterOutputStream ObjectOutputStream OutputStream PipedOutputStream I have this assignment that asks me to use one of OutputStream subclasses specifically, so a Writer is not an option. Overview of the classes ByteArrayOutputStream