java 文件上传到读取文件内容 java 文件上传到读取文件内容的实例
飘在北季的校园- 人气:01.下载文件,将文件保存到本地。(只试用excel);
2.对文件的标题进行检验;
3.获取导入的批次(取一个表的一个值,加1);
4.循环获取文件某一个行,某一列的值,set到对象中;
5.检验值的合法性;
6.循环保存到对象中。
7.用map将错误的信息和正确的信息,JSONObject.fromObject(map);
public String uploadFile() throws Exception { logger.info("开始导入规则文件:" + fileInputFileName); InputStream is = new FileInputStream(fileInput); String uploadPath = ServletActionContext.getServletContext() .getRealPath("/upload"); System.out.println(uploadPath); File targetFile = new File(uploadPath, this.getFileInputFileName()); OutputStream os = new FileOutputStream(targetFile); byte[] buffer = new byte[1024]; int length = 0; while ((length = is.read(buffer)) > 0) { os.write(buffer, 0, length); } is.close(); os.close(); Map<String, Object> map = personalKPIMonitorManualRuleService .importRules(targetFile); HttpServletResponse response = ServletActionContext.getResponse(); response.setContentType("text/html;charset=utf-8"); PrintWriter out = response.getWriter(); out.println(JSONObject.fromObject(map)); // if(flag==true){ // logger.info("规则文件导入成功:"+fileInputFileName); // out.println("规则文件导入成功:"+fileInputFileName); // }else{ // logger.info("规则文件导入失败:"+fileInputFileName); // out.println("规则文件导入失败,详见日志:"+fileInputFileName); // } out.flush(); out.close(); return null; }
以上这篇java 文件上传到读取文件内容的实例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持。
加载全部内容