剛剛申請下來的博客,寫得第一篇。有點小激動,本人以前是一名工業3D設計師突然有些變故做上了JavaWeb開發;
前幾天,發現了一些小問題。我在寫后台管理頁面時,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>標簽里加上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直接在標簽里了;
有很多朋友想問,為什么寫兩個form表單;
這是因為根據后台接收數據的需求,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表單里,細心地朋友發現在第二個form表單里<input>標簽里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里;
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里實在是太好用了,上傳圖片都不用再寫enctype = 'multipart/form-data';
第一次寫博客,希望大家多提一些建議;
午休中。。。。。。。