前幾天,發現了一些小問題。我在寫後台管理頁面時,需要上傳一張圖片。於是我就用很普通的Form表單上傳有一段Json串和圖片文件;
Form表單上傳圖片只需要在<form>標簽裡加上enctype = 'multipart/form-data',這樣是可以上傳圖片的;
但問題來了,在我進行用Form表單提交的時候直接跳出來提交返回值的頁面並且原先的頁面刷新;
這樣我們可以先到異步的Ajax可以實現局部刷新;
廢話不多說了 直接上代碼;
首先是html:
<form id = "form_insert" method = "post"> <table style = "font-size: 13px; margin: 13px auto;"> <tr> <td style = "text-align: right;">類型</td> <td>: <input id = "acttype" style = "width:150px" class = "easyui-textbox" data-options = "required:true"></td> </tr> <tr><td colspan = "2" style = "height: 13px"></td> </tr> <tr> <td style = "text-align: right;">名稱</td> <td>: <input id = "actname" style = "width:150px" class = "easyui-textbox" data-options = "required:true"></td> </tr> <tr><td colspan = "2" style = "height: 13px"></td> </tr> <tr> <td style = "text-align: right;">開始時間</td> <td>: <input id = "actstarttime" style = "width:150px" class = "easyui-datetimebox" data-options = "required:true"></td> </tr> <tr><td colspan = "2" style = "height: 13px"></td> </tr> <tr> <td style = "text-align: right;">結束時間</td> <td>: <input id = "actendtime" style = "width:150px" class = "easyui-datetimebox" data-options = "required:true"></td> </tr> <tr><td colspan = "2" style = "height: 13px"></td> </tr> <tr> <td style = "text-align: right;">省</td> <td>: <input id ="mem_Province" style = "width:150px" class = "easyui-combobox" data-options = "required:true"></td> </tr> <tr><td colspan="2" style="height: 13px"></td> </tr> <tr> <td style="text-align: right;">市</td> <td>: <input id = "mem_City" style = "width:150px" class = "easyui-combobox" data-options = "required:true"></td> </tr> <tr><td colspan = "2" style = "height: 13px"></td> </tr> <tr> <td style = "text-align: right;">門店</td> <td>: <input id = "mem_Shop" style = "width:150px" class = "easyui-combobox" data-options = "required:true"></td> </tr> <tr><td colspan="2" style="height: 13px"></td> </tr> <tr> <td style = "text-align: right;">具體地址</td> <td>: <input id = "actadd" style = "width:150px" class = "easyui-textbox" data-options = "required:true"></td> </tr> </table> </form> <form id = "form_sub" style = "font-size: 13px;"> <table style="font-size: 13px; margin: 13px auto;"> <tr> <td style = "text-align: right;">上傳圖片</td> <td>: <input class = "easyui-filebox" name = 'photo' style = "width:153px" data-options = "required:true,prompt:'選擇上傳圖片',buttonText:' 選 擇 '"></td> <td><input type = 'text' id = "Item" name = 'item' style = "display:none;"></td> </tr> </table> </form> <div style = "text-align:right; padding:2px 5px;"> <a id = "sub" class = "easyui-linkbutton" data-options = "iconCls:'icon-ok'" href = "javascript:void(0)"> 保存 </a> <a class = "easyui-linkbutton" data-options = "iconCls:'icon-quxiao'" href = "javascript:void(0)" onclick = "window_open($('#insert_form'), 'close')"> 取消 </a> </div>
以上是html代碼,為了方便大家copy,css直接在標簽裡了;
有很多朋友想問,為什麼寫兩個form表單;
這是因為根據後台接收數據的需求,傳的是信息變成字符串和圖片;
首先把信息變成字符串;
再放到第二個Form表單裡,細心地朋友發現在第二個form表單裡<input>標簽裡style=“display:none”這是個隱藏的標簽;
不錯我是通過第一個form表單獲取的數據通過js變成字符串再放到隱藏的標簽裡;
這樣通過Ajax提交第二個Form表單就可以了;
js代碼:
$( '#sub' ).click( function () { var actTimeStart1 = $ ('#actstarttime') . datebox ('getValue'); var actTimeStart = changeDateToLong(actTimeStart1); var actTimeEnd1 = $('#actendtime').datebox('getValue'); var actTimeEnd = changeDateToLong(actTimeEnd1); if(actTimeStart != '' && actTimeEnd != '' && (actTimeStart - actTimeEnd > 0)){ $.messager.alert('警告','結束時間不能小於開始時間!','error'); return false; } else{ if ($('#form_insert').form('validate')) { var actType = document.getElementById("acttype").value; var actName = document.getElementById("actname").value; var actArea = document.getElementById("actadd").value; var actTimeStart1 = $('#actstarttime').datebox('getValue'); var actTimeStart = changeDateToLong(actTimeStart1); var actTimeEnd1 = $('#actendtime').datebox('getValue'); var actTimeEnd = changeDateToLong(actTimeEnd1); var t2 = $('#mem_Shop').combobox('getValue'); var jsonObj = {actType:actType,actName:actName,actTimeStart:actTimeStart,actTimeEnd:actTimeEnd,actArea:actArea,t2:t2}; var activityMemberJson = JSON.stringify(jsonObj); document.getElementById("Item").value=activityMemberJson; var form = new FormData(document.getElementById("form_sub")); $.ajax({ url : ../activity/actionActivityInsert', //http://www.cnblogs.com/jayxxxxxxx/ type : "post", data : form, //第二個Form表單的內容 processData : false, contentType : false, error : function(request) { }, success : function(data) { $('#box').datagrid('reload'); } }); window_open($('#insert_form'), 'close'); }else { $.messager.alert('警告' , '信息不完整!' , 'error'); } } });
大家看到了我用了FormData方法,說真的這個在html5裡實在是太好用了,上傳圖片都不用再寫enctype = 'multipart/form-data';
以上所述是小編給大家介紹的Ajax提交Form表單及文件上傳的實例代碼,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網站的支持!