JSP实现从不同服务器上下载文件的方法

public void importSuccess() throws Exception {   try {    HttpServletResponse response = Struts2Utils.getResponse();    // 重置响应    response.reset();    // 设置响应头为二进制流    response.setContentType("application/x-msdownload;charset=utf-8");    response.setContentType("APPLICATION/OCTET-STREAM ");    response.setContentType("application/vnd.ms-excel");    response.setHeader("Content-Disposition",      "attachment; filename=ComplaintsImportModel.xls");    String path = this.getClass().getClassLoader().getResource("/")//这里才是问题的关键，WebLogic服务器要在读取添加一个"/"      .getPath();    path = path.substring(1, path.length());    String name = File.separator + path + "ComplaintsImportModel.xls";    logger.info("**********************************" + name      + "*******************************");    InputStream is = new FileInputStream(name);    HSSFWorkbook wb = new HSSFWorkbook(is);    // 得到 文件流    OutputStream out = response.getOutputStream();    wb.write(out);    is.close();    out.flush();    out.close();   } catch (Exception e) {    logger.error("下载导出模版失败", e);   } }