什么是spring boot
spring boot是由pivotal团队提供的全新框架,其设计目的是用来简化新spring应用的初始搭建以及开发过程。该框架使用了特定的方式来进行配置,从而使开发人员不再需要定义样板化的配置。用我的话来理解,就是spring boot其实不是什么新的框架,它默认配置了很多框架的使用方式,就像maven整合了所有的jar包,spring boot整合了所有的框架(不知道这样比喻是否合适)。
页面代码(只需要引入基础layui的css与js)
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<fieldset class = "layui-elem-field layui-field-title" style= "margin-top: 30px;" > <legend>多文件列表上传</legend> </fieldset> <div class = "layui-upload" > <button type= "button" class = "layui-btn layui-btn-normal" id= "testlist" >选择多文件</button> <div class = "layui-upload-list" > <table class = "layui-table" > <thead> <tr><th>文件名</th> <th>大小</th> <th>状态</th> <th>操作</th> </tr></thead> <tbody id= "demolist" ></tbody> </table> </div> <button type= "button" class = "layui-btn" id= "testlistaction" >开始上传</button> </div> |
js
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layui.use( 'upload' , function(){ var $ = layui.jquery ,upload = layui.upload; //多文件列表示例 var demolistview = $( '#demolist' ) ,uploadlistins = upload.render({ elem: '#testlist' ,url: 'upload/uploadfile' ,accept: 'file' ,multiple: true ,auto: false ,size: 5120 ,bindaction: '#testlistaction' ,choose: function(obj){ var files = this .files = obj.pushfile(); //将每次选择的文件追加到文件队列 //读取本地文件 obj.preview(function(index, file, result){ var tr = $([ '<tr id="upload-' + index + '">' , '<td>' + file.name + '</td>' , '<td>' + (file.size/ 1014 ).tofixed( 1 ) + 'kb</td>' , '<td>等待上传</td>' , '<td>' , '<button class="layui-btn layui-btn-mini demo-reload layui-hide">重传</button>' , '<button class="layui-btn layui-btn-mini layui-btn-danger demo-delete">删除</button>' , '</td>' , '</tr>' ].join( '' )); //单个重传 tr.find( '.demo-reload' ).on( 'click' , function(){ obj.upload(index, file); }); //删除 tr.find( '.demo-delete' ).on( 'click' , function(){ delete files[index]; //删除对应的文件 tr.remove(); uploadlistins.config.elem.next()[ 0 ].value = '' ; //清空 input file 值,以免删除后出现同名文件不可选 }); demolistview.append(tr); }); } ,done: function(res, index, upload){ if (res.code == 0 ){ //上传成功 var tr = demolistview.find( 'tr#upload-' + index) ,tds = tr.children(); tds.eq( 2 ).html( '<span style="color: #5fb878;">上传成功</span>' ); tds.eq( 3 ).html( '' ); //清空操作 return delete this .files[index]; //删除文件队列已经上传成功的文件 } this .error(index, upload); } ,error: function(index, upload){ var tr = demolistview.find( 'tr#upload-' + index) ,tds = tr.children(); tds.eq( 2 ).html( '<span style="color: #ff5722;">上传失败</span>' ); tds.eq( 3 ).find( '.demo-reload' ).removeclass( 'layui-hide' ); //显示重传 } }); }); |
后台接收
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public final static string upload_file_path = "d:\\uploadfile\\" ; @requestmapping (value = "uploadfile" ) public string uploadimage( @requestparam ( "file" ) multipartfile file) { if (!file.isempty()) { map<string, string> resobj = new hashmap<>(map_size); try { bufferedoutputstream out = new bufferedoutputstream( new fileoutputstream( new file(upload_file_path, file.getoriginalfilename()))); out.write(file.getbytes()); out.flush(); out.close(); } catch (ioexception e) { resobj.put( "msg" , "error" ); resobj.put( "code" , "1" ); return jsonobject.tojsonstring(resobj); } resobj.put( "msg" , "ok" ); resobj.put( "code" , "0" ); return jsonobject.tojsonstring(resobj); } else { return null ; } } |
总结
以上所述是小编给大家介绍的springboot+layui实现文件上传功能,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:https://blog.csdn.net/butterBallj/article/details/80647741