Struts 2 完成直接输出流到浏览器

Struts 2 完成直接输出流到浏览器

2008年10月17日 星期五 上午 10:30

// 告诉Struts 执行完 Action 就行了，不用再去调用结果响应的操作 ActionContext.getContext().getActionInvocation().getProxy().setExecuteResult(false); // 取得 HttpServletResponse HttpServletResponse response = ServletActionContext.getResponse(); // 下面是输出(一定要注意编码)         InputStream in = null;         try {             response.setContentType("xls");             response.setHeader("Content-Disposition", "attachment; filename=" + encode(fileName + ".xls"));                         OutputStream os = response.getOutputStream();                         in = new FileInputStream(file);             int tp = in.read();             while (tp != -1) {                 response.getOutputStream().write(tp);                 tp = in.read();             }             os.flush();         } catch (Throwable e) {             logger.info("文件下载失败！", e);             throw new RuntimeException("文件下载失败！", e);         } finally {             try {                 in.close();             } catch (IOException e) {                 logger.info("关闭流失败！", e);                 throw new RuntimeException("关闭流失败！", e);             }         }