ajaxDreamer 2011-03-01
下以处理的是对含有<inputtype"file"/>元素的表单,利用jquery.form的ajaxSubmit方法进行类似ajax提交的应用情况:
注:发果用jquery1.3.2版本与jquery.form.js使用的话,没什么问题照官方文档说明就OK的;但如果用jquery1.4.x的话,就存在诸多奇怪的问题,解决的很久才取出以下解决方案!
兼容firefox,chrome,IE7/8的最终代码:
客户端:
引用文件:
<scriptsrc="js/jquery/jquery-1.4.4.js"type="text/javascript"></script>
<scripttype="text/javascript"src="js/jquery_plugins/form/jquery.form.js"></script>
js代码:
<scripttype="text/javascript">
//-------------------form---------------------------------
//表單的異步提交
functionsubmitForm(f){
varoptions={
//iframe:true,
dataType:'xml',//或'script',不能用'json',这种方式在三种浏览器中都不行,即回调函数不执行
type:'post',
//url:'bid/bidding/biddingAction_saveBaseInfo.action',
url:f.action,
beforeSubmit:showRequest,//pre-submitcallback
success:showResponse,//post-submitcallback
//clearForm:true
//otheravailableoptions:
target:'#baseInfo_iframe'//targetelement(s)tobeupdatedwithserverresponse
//resetForm:true//resettheformaftersuccessfulsubmit
//$.ajaxoptionscanbeusedheretoo,forexample:
//timeout:3000
};
//$('#'+formId).ajaxForm(options);
$(f).ajaxSubmit(options);
}
//pre-submitcallback
functionshowRequest(formData,jqForm,options){
if($("#baseInfoForm").validationEngine({returnIsValid:true})){
returntrue;
}else{
returnfalse;
}
}
//post-submitcallback
functionshowResponse(response,statusText){
/*$(response).find("msg").each(function(){
alert($(this).text());
});*/
varstrMsg=$(response).find("msg").first().text();
showMsg("ui-icon-circle-check",strMsg);
//alert("xxSS");
}
//-------------------endform---------------------------------
//显示提示信息
functionshowMsg(iconClass,msg,w,h){
$("#dialog-modal").html("<p><spanclass=\"ui-icon"+iconClass+"\"style=\"float:left;margin:07px50px0;\"></span>"+msg+"</p><br/>");
$("#dialog-modal").dialog({
position:'top',
width:w?w:200,
height:h?h:150,
modal:true
});
}
</script>
html表单:
<iframeid="baseInfo_iframe"name="baseInfo_iframe"style="display:none;"frameborder="0"src=""></iframe>
<formenctype="multipart/form-data"method="post"target="baseInfo_iframe"
action="bid/bidding/biddingAction_saveBaseInfo.action"
id="baseInfoForm"class="formular"onsubmit="javascript:submitForm(this);returnfalse;">
.......
<inputtype="file"name="upload"id="upload"class="multi"maxlength="1"accept=""size="20"/>
.......
</form>
注:为了在IE下能能成功地执行success定义的回调函数,以下一点很重要:定义form的target="baseInfo_iframe"和一个隐藏的iframe。没有这个的话,在IE下不会调用回调函数的!
Server端:
struts2action代码:
publicStringxxx()throwsException{
...
getResponse().setCharacterEncoding("UTF-8");
/*回应报头的类型很重要,试验结果是:
*客户端设xml时,server回应报头应该是application/xml(如果是text/html,chrome和FF可以,IE不行);
*客户端设script时,server回应报头应该是text/html;
*/
getResponse().setHeader("Content-Type","text/html");
//Stringstr="{msg:'"+getText("opt.suc")+"'}";//客户端声明为json
Stringstr="<msg>"+getText("opt.suc")+"</msg>";//客户端声明为xml
//Stringstr="showMsg(\"ui-icon-circle-check\",\""+getText("opt.suc")+"\");";//客户端声明为script
System.out.println("<<:"+str);
getResponse().getWriter().print(str);
returnnull;
}
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