从输入流中获取数据并以字节数组返回

import java.io.ByteArrayOutputStream;import java.io.InputStream;public class StreamTool {public static byte[] read(InputStream inStream)throws Exception{ByteArrayOutputStream outputStream = new ByteArrayOutputStream();byte[] buffer = new byte[1024];int len = 0;while((len=inStream.read(buffer))!=-1){outputStream.write(buffer, 0, len);}inStream.close();return outputStream.toByteArray();}}