htmledit_views">
<ul class="upload_box"></ul> // 预览图片容器
<div class="weui-uploader__input-box upload_input">
<input class="weui-uploader__input upload_file" name="avatar[]" type="file" accept="image/*" onchange="setImagePreview(this)">
</div>
预览方法
var upload_btn = '<div class="weui-uploader__input-box upload_input">'+$('.upload_input').html()+'</div>';
//下面用于图片上传预览功能
function setImagePreview(avalue) {
var docObj = avalue;
var imgObjPreview = $('.upload_box');
if(docObj.files && docObj.files[0])
{
//火狐下,直接设img属性
// imgObjPreview.style.display = 'block';
// imgObjPreview.style.maxWidth = '100%';
// imgObjPreview.style.maxHeight = '85px';
//imgObjPreview.src = docObj.files[0].getAsDataURL();
//火狐7以上版本不能用上面的getAsDataURL()方式获取,需要一下方式
// imgObjPreview.src = window.URL.createObjectURL(docObj.files[0]);
imgObjPreview.append('<li><div class="upload_img"><img src="'+window.URL.createObjectURL(docObj.files[0])+'" width="100%" height="100%" /></div><i class="weui-icon-cancel remove_img" ></i></li>');
}
else
{
//IE下,使用滤镜
docObj.select();
var imgSrc = document.selection.createRange().text;
var localImagId = docObj.nextElementSibling;
//必须设置初始大小
localImagId.style.width = "100%";
// localImagId.style.height = "85px";
//图片异常的捕捉,防止用户修改后缀来伪造图片
try{
localImagId.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)";
localImagId.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = imgSrc;
}
catch(e)
{
alert("您上传的图片格式不正确,请重新选择!");
return false;
}
imgObjPreview.style.display = 'none';
document.selection.empty();
}
$(docObj).parent().hide();
if($('.upload_box li').length >= 3){
return false;
}
$(docObj).parent().before(upload_btn);
return true;
}
// 删除图片
$("body").on("click",'.remove_img',function(){
var index = $(this).index();
$('.upload_input').eq((index - 1)).remove();
$(this).parent().remove();
i = 0;
$('.upload_input').each(function(){
if($(this).css('display') != 'none'){
i++;
}
})
if(i == 0){
$('.upload_input').parent().append(upload_btn);
}
});