关于处理JAVA Mail 附件处理的问题，如何告诉下载bodyPart 的inputStream？？？急，在线等！！！！！！
最近写了一个邮件客户端

想达成foxmail这种效果，第一次查看邮件的时候，将邮件附件保存到本地

//上面代码省略
File saveFile = new File(savePath + name + extName);
InputStream ipt=bodyPart.getInputStream();
OutputStream out=new FileOutputStream(saveFile);

int count = bodyPart.getSize();
System.out.println(count)

long start = System.currentTimeMillis(); 
int b = 0;  
byte[] buffer = new byte[count];  
while (b != -1){  
   b = ipt.read(buffer);       
   out.write(buffer);  
}  
   ipt.close();  
   out.close();  
   out.flush(); 
long end = System.currentTimeMillis();  
System.out.println("耗时：" + (end - start) + "毫秒"); 

Console 输出：

mailtest.zip
6252780
耗时：15091毫秒

一个4M大小的附件就要十几秒，请问我代码哪些地方有问题？还能怎么优化？？？

io inputstream javamail
[解决办法]
试试这个吧。5.5M 耗时：779毫秒

public static void main(String[] args) throws IOException {
long start = System.currentTimeMillis();
BufferedInputStream inBuff = null;
BufferedOutputStream outBuff = null;
try {
// 新建文件输入流并对它进行缓冲
inBuff = new BufferedInputStream(new FileInputStream(
"D:\\soft\\apache-tomcat-6.0.20.exe"));

// 新建文件输出流并对它进行缓冲
outBuff = new BufferedOutputStream(new FileOutputStream(
"D:\\test\\test"));

// 缓冲数组
byte[] b = new byte[1024];
int len;
while ((len = inBuff.read(b)) != -1) {
outBuff.write(b, 0, len);
}
// 刷新此缓冲的输出流
outBuff.flush();
} finally {
// 关闭流
if (inBuff != null)
inBuff.close();
if (outBuff != null)
outBuff.close();
}

long end = System.currentTimeMillis();
System.out.println("耗时：" + (end - start) + "毫秒");
}