inputstream

问题 Is it possible to cast from an InputStream to an AudioInputStream? I want to play little sound files at certain events, so I made following SoundThread import java.io.*; import javax.sound.sampled.*; public class SoundThread implements Runnable{ private String filename; SoundThread(String filename) { this.filename = filename; } public void run() { try { InputStream in = ClassLoader.getSystemResourceAsStream("sounds/"+filename+".wav"); Clip clip = AudioSystem.getClip(); clip.open(

问题 I'm trying to send a jpg image with Spring MVC using ResponseEntity<Resource> as the controller method response type. If the resource is a FileSystemResource it works fine but when I try to use an InputStreamResource the ResourceHttpMessageConverter ask for the content lenght and InputStreamResource throws an exception (from AbstractResource method because there is not any file to read lenght from). ResourceHttpMessageConverter would continue if the method returned null instead. Is there any

问题 I'm trying to send a jpg image with Spring MVC using ResponseEntity<Resource> as the controller method response type. If the resource is a FileSystemResource it works fine but when I try to use an InputStreamResource the ResourceHttpMessageConverter ask for the content lenght and InputStreamResource throws an exception (from AbstractResource method because there is not any file to read lenght from). ResourceHttpMessageConverter would continue if the method returned null instead. Is there any

问题 i try to upload to firebase a picture and when i upload its show me that the size of the file is 0 bytes and dont show the content picture everything seems fine, then whay its happen??? StorageReference storageRef = storage.getReferenceFromUrl("gs://<your-bucket-name>"); if (inputStream!=null) { String pic = "BathroomImage" + +rand.nextInt(1000) + ".jpg"; mountainsRef = storageRef.child(pic); uploadTask = mountainsRef.putStream(inputStream); uploadTask.addOnFailureListener(new

问题 i am wondering that if it is possible to set the delegate of input stream to another class. So far all examples i have encountered are with self: [inputStream setDelegate:self] . I want to set delegate to another class like a ViewController not self. Thanks in advance. 回答1: if your ViewController is responding to NSStreamDelegate , you can initiate an instance of the controller and set the delegate as usual. @interface ViewController : NSOperation<NSStreamDelegate> ... - ViewController *vc =

问题 This question already has answers here : Closed 6 years ago . Possible Duplicate: How can a Java program use files inside the .jar for read and write? I am in the process of creating a game, and I want it all to run from on runnable jar file, so all of my resources (images and text files) are going to be inside the jar file. The problem that I'm having with this is that it is extremely difficult to deal with files inside the jar. I am using eclipse, which can sometimes play tricks on you

问题 C++ has an I/O manipulator called 'fixed' to input/output floating-point numbers in fixed (non-scientific) form. It works fine for output, but I don't understand how to get input working properly. Consider this example: #include <sstream> #include <iostream> using namespace std; int main() { double value; istringstream("1.4e1") >> fixed >> value; cout << value << endl; } In my opinion, it should work like this. Input stream has some string. When we apply fixed manipulator on it and try to

问题 I have the following statement: DataInputStream is = new DataInputStream(process.getInputStream()); I would like to print the contents of this input stream but I dont know the size of this stream. How should I read this stream and print it? 回答1: It is common to all Streams, that the length is not known in advance. Using a standard InputStream the usual solution is to simply call read until -1 is returned. But I assume, that you have wrapped a standard InputStream with a DataInputStream for a

问题 I have a method like public void put(@Nonnull final InputStream inputStream, @Nonnull final String uniqueId) throws PersistenceException { // a.) create gzip of inputStream final GZIPInputStream zipInputStream; try { zipInputStream = new GZIPInputStream(inputStream); } catch (IOException e) { e.printStackTrace(); throw new PersistenceException("Persistence Service could not received input stream to persist for " + uniqueId); } I wan to convert the inputStream into zipInputStream , what is the

问题 I have a method like public void put(@Nonnull final InputStream inputStream, @Nonnull final String uniqueId) throws PersistenceException { // a.) create gzip of inputStream final GZIPInputStream zipInputStream; try { zipInputStream = new GZIPInputStream(inputStream); } catch (IOException e) { e.printStackTrace(); throw new PersistenceException("Persistence Service could not received input stream to persist for " + uniqueId); } I wan to convert the inputStream into zipInputStream , what is the