importjava.io.*;publicclassInputStreamToFileInputStream{publicstaticvoidmain(String[]args)throwsIOException{// 创建临时文件FiletempFile=File.createTempFile("temp",".tmp");// 将InputStream写入临时文件try(InputStreaminput=...;// 需要替换为实际的InputStream对象OutputStreamoutput=newFileOutputStream(tempF...
importjava.io.*;publicclassInputStreamToFileInputStream{publicstaticFileInputStreamconvertTo(Filefile)throwsIOException{byte[]buffer=newbyte[1024];intbytesRead;try(InputStreaminputStream=newFileInputStream(file);FileOutputStreamoutputStream=newFileOutputStream("tempFile")){while((bytesRead=inputStream.read...
//先将byte[]转为inputStream,然后在转为StringInputStream is =newByteArrayInputStream(byte[] byt);//然后在根据上文提到的将inputStream转为String的方法去转换 三、File的转换 1、file转inputStream FileInputStream fileInputStream =newFileInputStream(file);...
1. File to InputStream File file = new File("file.xml");InputStream inputStream = new FileInputStream(file);2.InputStream to File InputStream inputStream = new FileInputStream("file.xml");OutputStream outputStream = new FileOutputStream("file-new.xml");int bytesWritten = 0;...
1 FileInputStream(File file【文件数据源】) File file=new File (“C:\\test.txt”); FileInputStream fileObject=new FileInputStream (file); 2 FileInputStream (String name) InputStream fileObject=new FileInputStream (“C:\\test.txt”); ...
inputStream = new FileInputStream("input.txt");// 创建一个临时文件 File tempFile = File....
方法一：使用Java NIO importjava.io.*;importjava.nio.file.*;publicclassInputStreamToFileExample{...
如果不写入文件，就不能这样做。除非有文件，否则不可能有FileInputStream或FileChannel。如果可能的话，...
方法的返回值表示读取的有效字节数,你的buffer数组长度是4*1024,但是每次读取不可能都是这么多字节,而os.write(buffer);则是每次都是写入4*1024个字节,所以新的文件肯定比旧的文件大,,,改写方法如下:int len = 0;while((len = is.read(buffer)) != -1){ os.write(buffer,0,len);} ...
其实这个只是很简单的文件流操作,基本学过JAVA基础的都会学到文件流,但由于以前上课开小差,对流这一操作不太熟悉,在此记录一下. packagecom.XXX.common.utils.image;importjava.io.FileOutputStream;importjava.io.IOException;importjava.io.InputStream;publicclassInputStreamToFile{/** ...