springmvc03——支持的参数类型和返回类型——重定向到百度

	@RequestMapping("hello08")
	public ModelAndView hello08() {
		return  new ModelAndView(new RedirectView("http://www.baidu.com"));
	}

这应该是下载外部文件的例子，没试验过，转载自
https://blog.csdn.net/wallimn/article/details/84881180

@RequestMapping("/download")
public ModelAndView download(){
	String shortName = "下载文件.xls";
	try {
		shortName = URLEncoder.encode(shortName,"UTF-8");
	} catch (UnsupportedEncodingException e) {
		e.printStackTrace();
	}
	String url = "../downloadPath/"+shortName;
	ModelAndView downloadView = new ModelAndView(new RedirectView(url));
	return downloadView;
}

这是写在我的springmvc03里的例子里面的，配置啥的也都在里面。