什么是spring boot
spring boot是由pivotal團隊提供的全新框架,其設計目的是用來簡化新spring應用的初始搭建以及開發過程。該框架使用了特定的方式來進行配置,從而使開發人員不再需要定義樣板化的配置。用我的話來理解,就是spring boot其實不是什么新的框架,它默認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(不知道這樣比喻是否合適)。
頁面代碼(只需要引入基礎layui的css與js)
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<fieldset class = "layui-elem-field layui-field-title" style= "margin-top: 30px;" > <legend>多文件列表上傳</legend> </fieldset> <div class = "layui-upload" > <button type= "button" class = "layui-btn layui-btn-normal" id= "testlist" >選擇多文件</button> <div class = "layui-upload-list" > <table class = "layui-table" > <thead> <tr><th>文件名</th> <th>大小</th> <th>狀態</th> <th>操作</th> </tr></thead> <tbody id= "demolist" ></tbody> </table> </div> <button type= "button" class = "layui-btn" id= "testlistaction" >開始上傳</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(); //將每次選擇的文件追加到文件隊列 //讀取本地文件 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>等待上傳</td>' , '<td>' , '<button class="layui-btn layui-btn-mini demo-reload layui-hide">重傳</button>' , '<button class="layui-btn layui-btn-mini layui-btn-danger demo-delete">刪除</button>' , '</td>' , '</tr>' ].join( '' )); //單個重傳 tr.find( '.demo-reload' ).on( 'click' , function(){ obj.upload(index, file); }); //刪除 tr.find( '.demo-delete' ).on( 'click' , function(){ delete files[index]; //刪除對應的文件 tr.remove(); uploadlistins.config.elem.next()[ 0 ].value = '' ; //清空 input file 值,以免刪除后出現同名文件不可選 }); demolistview.append(tr); }); } ,done: function(res, index, upload){ if (res.code == 0 ){ //上傳成功 var tr = demolistview.find( 'tr#upload-' + index) ,tds = tr.children(); tds.eq( 2 ).html( '<span style="color: #5fb878;">上傳成功</span>' ); tds.eq( 3 ).html( '' ); //清空操作 return delete this .files[index]; //刪除文件隊列已經上傳成功的文件 } 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;">上傳失敗</span>' ); tds.eq( 3 ).find( '.demo-reload' ).removeclass( 'layui-hide' ); //顯示重傳 } }); }); |
后臺接收
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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 ; } } |
總結
以上所述是小編給大家介紹的springboot+layui實現文件上傳功能,希望對大家有所幫助,如果大家有任何疑問請給我留言,小編會及時回復大家的。在此也非常感謝大家對服務器之家網站的支持!
原文鏈接:https://blog.csdn.net/butterBallj/article/details/80647741