1.下載文件，將文件保存到本地。（只試用excel）；
2.對(duì)文件的標(biāo)題進(jìn)行檢驗(yàn)；
3.獲取導(dǎo)入的批次（取一個(gè)表的一個(gè)值，加1）；
4.循環(huán)獲取文件某一個(gè)行，某一列的值，set到對(duì)象中；
5.檢驗(yàn)值的合法性；
6.循環(huán)保存到對(duì)象中。
7.用map將錯(cuò)誤的信息和正確的信息，jsonobject.fromobject(map)；
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public string uploadfile() throws exception {logger.info("開(kāi)始導(dǎo)入規(guī)則文件：" + 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("規(guī)則文件導(dǎo)入成功："+fileinputfilename);// out.println("規(guī)則文件導(dǎo)入成功："+fileinputfilename);// }else{// logger.info("規(guī)則文件導(dǎo)入失敗："+fileinputfilename);// out.println("規(guī)則文件導(dǎo)入失敗，詳見(jiàn)日志："+fileinputfilename);// }out.flush();out.close();return null;} |
以上這篇java 文件上傳到讀取文件內(nèi)容的實(shí)例就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持服務(wù)器之家。
原文鏈接：https://blog.csdn.net/huoxingren0523/article/details/72366874
