java实现文件下载调用迅雷的时候文件名称不对的问题

[liangqun2013]

大家好，最近写了个java实现文件下载的demo，在调用迅雷的时候下载文件的名称是createxmlFile.do，不是文件本来的名字，想显示的是20140630_130000_ZMBX_0001_01.zip，前台页面代码如下

<form name="frm" action="/platform/createxmlFile.do?actionType=downLoadFiles" method="post">

function downLoadFiles(){
			var fxm = document.forms[0];
			fxm.action = "/platform/createxmlFile.do?actionType=downLoadFiles&fileName=20140630_130000_ZMBX_0001_01.zip";
			fxm.submit();
		}

后台代码如下

public void downLoadFiles(HttpServletRequest request,
			HttpServletResponse response) throws Exception {
		String fileName = request.getParameter("fileName");
		response.setContentType("application/OCTET-STREAM;charset=UTF-8");
		String path = "E:\\file";
		response.setHeader("Content-Dispositon", "attachment;filename="
				+ URLEncoder.encode(fileName, "utf-8"));
		File file = new File(path, fileName);
		FileInputStream fis = null;
		BufferedOutputStream bos = null;
		try {
			fis = new FileInputStream(file);
			bos = new BufferedOutputStream(response.getOutputStream());
			byte[] buffer = new byte[1024];
			int len;
			while ((len = fis.read(buffer)) != -1) {
				bos.write(buffer, 0, len);
				bos.flush();
			}
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			fis.close();
			bos.close();
		}
	}

大家帮忙看一下