ByteArrayOutputStream和ByteArrayInputStream详解
http://www.blogjava.net/rainmanyang/articles/232045.htmlByteArrayOutputStream和ByteArrayInputStream详解
<div class="postbody">ByteArrayOutputStream类是在创建它的实例时，程序内部创建一个byte型别数组的缓冲区，然后利用ByteArrayOutputStream和ByteArrayInputStream的实例向数组中写入或读出byte型数据。在网络传输中我们往往要传输很多变量，我们可以利用ByteArrayOutputStream把所有的变量收集到一起，然后一次性把数据发送出去。具体用法如下:ByteArrayOutputStream: 可以捕获内存缓冲区的数据，转换成字节数组。
ByteArrayInputStream: 可以将字节数组转化为输入流
<div style="padding-bottom: 4px; background-color: #eeeeee; padding-left: 4px; width: 98%; padding-right: 5px; font-size: 13px; padding-top: 4px; border: #cccccc 1px solid;"> 1http://java-admin.iteye.com/Images/OutliningIndicators/None.gifimport java.io.*;
2http://java-admin.iteye.com/Images/OutliningIndicators/None.gif
3http://java-admin.iteye.com/Images/OutliningIndicators/ExpandedBlockStart.gifhttp://java-admin.iteye.com/Images/OutliningIndicators/ContractedBlock.gifpublic class test http://www.blogjava.net/Images/dot.gif{
4http://java-admin.iteye.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://java-admin.iteye.com/Images/OutliningIndicators/ContractedSubBlock.gif public static void main(String[] args) http://www.blogjava.net/Images/dot.gif{
5http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif int a=0;
6http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif int b=1;
7http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif int c=2;
8http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif ByteArrayOutputStream bout = new ByteArrayOutputStream();
9http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif bout.write(a);
10http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif bout.write(b);
11http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif bout.write(c);
12http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif byte[] buff = bout.toByteArray();
13http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif for(int i=0; i<buff.length; i++)
14http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif System.out.println(buff);
15http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif System.out.println("***********************");
16http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif ByteArrayInputStream bin = new ByteArrayInputStream(buff);
17http://java-admin.iteye.com/Images/OutliningIndicators/ExpandedSubBlockStart.gifhttp://java-admin.iteye.com/Images/OutliningIndicators/ContractedSubBlock.gif while((b=bin.read())!=-1) http://www.blogjava.net/Images/dot.gif{
18http://java-admin.iteye.com/Images/OutliningIndicators/InBlock.gif System.out.println(b);
19http://java-admin.iteye.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
20http://java-admin.iteye.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif }
21http://java-admin.iteye.com/Images/OutliningIndicators/ExpandedBlockEnd.gif}
22http://java-admin.iteye.com/Images/OutliningIndicators/None.gif
23http://java-admin.iteye.com/Images/OutliningIndicators/None.gif
24http://java-admin.iteye.com/Images/OutliningIndicators/None.gif
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