首先需要创建一个FileInputStream对象,并将图片文件对象作为参数传入。 FileInputStreamfis=newFileInputStream(file); 1. 3. 创建字节数组 接下来,我们需要创建一个字节数组来存储读取到的图片数据。可以使用available()方法获取文件的可用字节数,并将其作为字节数组的长度。 byte[]buffer=newbyte[fis.available()];...
try { FileInputStream fis = new FileInputStream("d:\\speech.txt"); InputStreamReader isr = new InputStreamReader(fis, "GBK"); FileOutputStream fos = new FileOutputStream("d:\\speechcopy.txt"); OutputStreamWriter osw = new OutputStreamWriter(fos, "utf-8"); int n = 0; char[] cbu...
inst.addTransformer((loader,className,classBeingRedefined,protectionDomain,classfileBuffer)->{//如果创建AgentServer类,用其余的类代替if(!"com.agent.AgentServer".equals(className)){returnnull;}else{FileInputStream fis=null;try{//用自己的类,代替项目中的class文件fis=newFileInputStream("C:\\Users\\Des...
importjava.io.FileInputStream;importjava.io.IOException;publicclassFileToByteExample{publicstaticvoidmain(String[]args){try(FileInputStreamfis=newFileInputStream("input.txt")){intlength=fis.available();byte[]bytes=newbyte[length];fis.read(bytes);for(byteb:bytes){System.out.print((char)b);}}c...
while((fis.read(buffer,0,n)!=-1)&&(n>0))什么意思fis 是FileInputStream 的实例 FileInputStream fis=new FileInputStream("**")Byte buffer[]=new Byte[n]
byte2hex的效率和传输量明显优化于byte2hex_,因为String 操作后都是产生一个新的字符串对象,而stringBuffer操作的始终是原对象, 当字符串长度大时,并且多字要进行字符串连接时,使用 StringBuffer 性能要高许多。 而且 StringBuffer 是线程同步的。 ###附原始类代码### package *.*.mss.util; import java.io...
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file)); // 以字节流的大小来指定数组大小 byte[] fileBytes = new byte[bis.available()]; // 将pdf内容放到数组当中 bis.read(fileBytes); // 关闭文件流 bis.close(); System.out.println(Arrays.toString(fileBytes)); } catch (...
FileInputStream fis = new FileInputStream(filePath); int length = (int) new File(filePath).length(); byte[] buffer = new byte[length]; fis.read(buffer, 0, length); for (int i = 1; i < hex.length(); i++){ if(i %2 == 0){ String test = String.valueOf(hex.charAt(i-2...
byte[] bytes = new byte[(int) file.length()]; FileInputStream fis = new FileInputStream(file); BufferedInputStream bis = new BufferedInputStream(fis); bis.read(bytes, 0, bytes.length); OutputStream os = socket.getOutputStream();
File file = new File("D:\\zh-16000-30s.pcm"); FileInputStream fis = new FileInputStream(file); int length = 0; int dataSize = 4096; byte[] bytes = new byte[dataSize]; int status = 0; // simulator Andorid or IOS push Streaming while ((length = fis.read(bytes, 0, dataSize))...