前幾天,發(fā)現(xiàn)了一些小問(wèn)題。我在寫后臺(tái)管理頁(yè)面時(shí),需要上傳一張圖片。于是我就用很普通的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(biāo)簽里加上enctype = 'multipart/form-data',這樣是可以上傳圖片的;
但問(wèn)題來(lái)了,在我進(jìn)行用Form表單提交的時(shí)候直接跳出來(lái)提交返回值的頁(yè)面并且原先的頁(yè)面刷新;
這樣我們可以先到異步的Ajax可以實(shí)現(xiàn)局部刷新;
廢話不多說(shuō)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>:nbsp;nbsp;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>:nbsp;nbsp;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(shí)間/td>
td>:nbsp;nbsp;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(jié)束時(shí)間/td>
td>:nbsp;nbsp;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>:nbsp;nbsp;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>:nbsp;nbsp;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>:nbsp;nbsp;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>:nbsp;nbsp;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>:nbsp;nbsp;input class = "easyui-filebox" name = 'photo' style = "width:153px" data-options = "required:true,prompt:'選擇上傳圖片',buttonText:'nbsp;選nbsp;擇nbsp;'">/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>nbsp;nbsp;nbsp;nbsp;
a class = "easyui-linkbutton" data-options = "iconCls:'icon-quxiao'" href = "javascript:void(0)" onclick = "window_open($('#insert_form'), 'close')">
取消
/a>nbsp;nbsp;nbsp;nbsp;
/div>
以上是html代碼,為了方便大家copy,css直接在標(biāo)簽里了;
有很多朋友想問(wèn),為什么寫兩個(gè)form表單;
這是因?yàn)楦鶕?jù)后臺(tái)接收數(shù)據(jù)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(gè)Form表單里,細(xì)心地朋友發(fā)現(xiàn)在第二個(gè)form表單里input>標(biāo)簽里style=“display:none”這是個(gè)隱藏的標(biāo)簽;
不錯(cuò)我是通過(guò)第一個(gè)form表單獲取的數(shù)據(jù)通過(guò)js變成字符串再放到隱藏的標(biāo)簽里;
這樣通過(guò)Ajax提交第二個(gè)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)){
$.messager.alert('警告','結(jié)束時(shí)間不能小于開始時(shí)間!','error');
return false;
}
else{
if ($('#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(gè)Form表單的內(nèi)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(shuō)真的這個(gè)在html5里實(shí)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(shí)例代碼,希望對(duì)大家有所幫助,如果大家有任何疑問(wèn)請(qǐng)給我留言,小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持!
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