html文件下载

 

 

 

/**
*  
* @throws Exception
*/
public void generateHtml() throws Exception{
ExportHtmlUtil.genFile( this.getRequest(), videoID );
	this.getResponse().getWriter().print("success");
}
 
 
 
    /**
     * 用流的方式读取  用这种方式访问本地的另一个action接口的html然后保存到本地
     * @param request
     */
    
public static  void genFile(HttpServletRequest request, String videoID ) throws Exception {
 
	String rootPath = request.getRealPath("/");
	 
	String saveDir = rootPath+ "htmlDir"+File.separator +videoID;
	File saveDirFile = new File(saveDir);
	 
	if( !saveDirFile.exists()){
		saveDirFile.mkdirs();
	}
	 
	StringBuffer pagUrl = new StringBuffer("http://localhost:").append(
	request.getLocalPort()).append("/user/user_userNote.action?");
	pagUrl.append("videoId="+videoID );
	 
	 
	URL url = new URL(pagUrl.toString());
	HttpURLConnection conn = (HttpURLConnection) url.openConnection();
	conn.setConnectTimeout(5000);
	conn.setReadTimeout(5000);
	conn.connect();
	InputStream os = conn.getInputStream();
	FileOutputStream fos = new FileOutputStream( new File(saveDir , "user.html"));
	byte[] b = new byte[10240];
	int n = -1;
	while ((n = os.read(b)) != -1) {
	fos.write(b, 0, n);
	}
	fos.close();
	os.close();
	conn.disconnect();
	url = null;
}