ssh框架下载本地文件

ssh框架下载本地文件

/**
	 * 下载模板
	 */
	public String download(){
	try{
		// 下载本地文件  
	    //File file = new File(Constant.OPLOAD_PAHT,fileName);  
	    // 读到流中  
		String realPath=this.getServletRequest().getSession().getServletContext().getRealPath("/") + "WEB-INF" + File.separator+"ybpldr.xls";
	    InputStream inStream = new FileInputStream(realPath);// 文件的存放路径  
	    this.getServletResponse().reset();  
	    this.getServletResponse().setContentType("bin");  
	    if ("FF".equals(getBrowser(this.getServletRequest()	))) {  
            // 针对火狐浏览器处理方式不一样了  
	    	String filenamedisplay = new String("医保数据批量导入.xls".getBytes("UTF-8"), "iso-8859-1") + ".xls";  
	    	this.getServletResponse().setHeader("Content-Disposition", "attachment;fileName="+filenamedisplay);
            
        } else{
	    // 设置输出的格式  
	    this.getServletResponse().setHeader("Content-Type","application/vnd.ms-excel;charset=UTF-8");
		//response.setHeader("Content-Disposition", "attachment;fileName=" + jfdwmc+".xls");
	    this.getServletResponse().setHeader("Content-Disposition", "attachment;fileName=" + java.net.URLEncoder.encode("医保数据批量导入.xls", "UTF-8"));

        }
	    //this.getServletResponse().addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode("医保数据批量导入.xls","UTF-8"));  
	    // 循环取出流中的数据  
	    byte[] b = new byte[100];  
	    int len;  

	    while ((len = inStream.read(b)) > 0)  
	    	this.getServletResponse().getOutputStream().write(b, 0, len);  
	    inStream.close();  
	} catch (IOException e) {  
	    e.printStackTrace();  
	}
	return null;
	}

	   // 以下为服务器端判断客户端浏览器类型的方法  
    private String getBrowser(HttpServletRequest request) {  
        String UserAgent = request.getHeader("USER-AGENT").toLowerCase();  
        if (UserAgent != null) {  
            if (UserAgent.indexOf("msie") >= 0)  
                return "IE";  
            if (UserAgent.indexOf("firefox") >= 0)  
                return "FF";  
            if (UserAgent.indexOf("safari") >= 0)  
                return "SF";  
        }  
        return null;  
    }