Java.io.ByteArrayOutputStream.size() 方法 Java.io.ByteArrayOutputStream.close() 方法 Java.io.ByteArrayOutputStream.toByteArray() 方法 Java.io.ByteArrayOutputStream.size() 方法 package com.codingdict; import java.io.ByteArrayOutputStream; import java.io.IOException; public class ByteArrayOutputStreamDemo { public static void main(String[] args) throws IOException { String str = ""; int size = 0; byte[] bs = {65, 66, 67, 68, 69}; ByteArrayOutputStream baos = null; try { // create new ByteArrayOutputStream baos = new ByteArrayOutputStream(); // for each byte in the buffer for (byte b : bs) { // write byte in to output stream baos.write(b); // convert output stream to string str = baos.toString(); size = baos.size(); // print System.out.print(size+":"); System.out.println(str); } } catch(Exception e) { // if I/O error occurs e.printStackTrace(); } finally { if(baos!=null) baos.close(); } } } Java.io.ByteArrayOutputStream.close() 方法 Java.io.ByteArrayOutputStream.toByteArray() 方法