java下载文件下载不动_java文件下载的问题

以前没写过文件下载的程序，现在在servlet中试了试，有些问题请教大神。代码如下：publicvoiddoPost(HttpServletRequestrequest,HttpServletResponseresponse)throwsServletException…

以前没写过文件下载的程序，现在在servlet中试了试，有些问题请教大神。代码如下：

public void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType(“text/html”);

response.setCharacterEncoding(“utf-8”);

// String path = request.getParameter(“path”);

String path = “F:\\OKDownLoad\\854546_e472e815bf086a04a78173d95c90b760_1369553818.gif”;

//读到流中

InputStream ins = new FileInputStream(path);

//设置输出的格式

response.reset();

response.setContentType(“bin”);

response.addHeader(“Content-Disposition”, “attachment; filename=\”下载测试\””);

//循环取出流中的数据

byte[] b = new byte[100];

int len = ins.read(b);

ins.close();

try {

while(len > 0){

response.getOutputStream().write(b, 0, len);

ins.close();

}

} catch (Exception e) {

e.printStackTrace();

}

}

这样下载的时候，会弹出下载狂，但是就一直卡在0%，下载不动，一点击取消，就报出ClientAbortException: java.net.SocketException: Connection reset by peer: socket write error异常，各位大神指教指教啊。

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