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);
java" id="highlighter_529809">
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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 ;
}
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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