byte[]和InputStream的相互转换

来源：互联网发布：淘宝手机详情卖家推荐编辑：程序博客网时间：2024/05/20 07:53

：byte[]转换为InputStream
InputStream sbs = new ByteArrayInputStream(byte[] buf);

2：InputStream转换为InputStreambyte[]
ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
byte[] buff = new byte[100]; //buff用于存放循环读取的临时数据
int rc = 0;
while ((rc = inStream.read(buff, 0, 100)) > 0) {
swapStream.write(buff, 0, rc);
}

byte[] in_b = swapStream.toByteArray(); //in_b为转换之后的结果

import java.io.ByteArrayInputStream;  import java.io.ByteArrayOutputStream;  import java.io.IOException;  import java.io.InputStream;    public class ByteToInputStream {        public static final InputStream byte2Input(byte[] buf) {          return new ByteArrayInputStream(buf);      }        public static final byte[] input2byte(InputStream inStream)              throws IOException {          ByteArrayOutputStream swapStream = new ByteArrayOutputStream();          byte[] buff = new byte[100];          int rc = 0;          while ((rc = inStream.read(buff, 0, 100)) > 0) {              swapStream.write(buff, 0, rc);          }          byte[] in2b = swapStream.toByteArray();          return in2b;      }    }

0 0