1.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);
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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服务器之家。
原文链接:https://blog.csdn.net/huoxingren0523/article/details/72366874