layui多图片上传并限制上传的图片数量
//给图片添加删除
function mouseChange() {
$(document).on("mouseenter mouseleave", ".file-iteme", function (event) {
if (event.type === "mouseenter") {
//鼠标悬浮
$(this).children(".info").fadeIn("fast");
$(this).children(".handle").fadeIn("fast");
} else if (event.type === "mouseleave") {
//鼠标离开
$(this).children(".info").hide();
$(this).children(".handle").hide();
}
});
}
mouseChange();
//json的length
function getJsonLength(jsonData){
var jsonLength = 0;
for(var item in jsonData){
jsonLength++;
}
return jsonLength;
}
//多图片上传
var ImgList = $('#uploader-list'),uploadListIns =upload.render({
elem: '#chooseImg',
url: $("#projectUrl").val()+ '/img/imgUpload.do',
accept: 'images',
acceptMime: 'image/jpg,image/png,image/jpeg',
exts: 'jpg|png|jpeg',
size: 1024,
multiple: true,
auto: true,
choose: function(obj){
var files = obj.pushFile(); //将每次选择的文件追加到文件队列
var len = getJsonLength(files);
//读取本地文件
obj.preview(function (index, file, result) {
if (parseInt(len)+parseInt(coachPicsArray.length)-count > 6){
layer.msg("门店图片不能超过6张");
//遍历
$.each(files,function(_key){
var key = _key;
var value = files[_key];
if(_key == index)
{ //删除
delete files[_key];
}
});
}else {
var reader = new FileReader();
reader.onload = function (e) {
var image = new Image();
image.onload = function () {
var realWidth = image.width;
var realHeight = image.height;
var tr = $(['' +
' ' +
'
' +
''].join(''));
//删除
tr.find('.handle').on('click', function () {
$(this).parent().remove();
delete files[index]; //删除对应的文件
var value = $("#clubCoachPics").val().split(",");
var arr = [];
for( var i in value){
if (value[i] != $(this).next().data('value')){
arr.push(value[i]);
}
}
$("#clubCoachPics").val(arr.join(",")) ;
});
ImgList.append(tr);
};
image.src = result;
};
//正式读取文件
reader.readAsDataURL(file);
}
});
},
before: function (obj) {
layer.msg('图片上传中...', {
icon: 16,
shade: 0.01,
time: 3000
})
},
done: function (res, index, upload) {
$("#img-"+ index + "").attr("data-value",res.imgUrl);
if(res.code == 0){ //上传成功
var imgUrl = $("#clubCoachPics").val();
if(imgUrl==null||imgUrl==""){
$("#clubCoachPics").val(res.imgUrl);
}else{
$("#clubCoachPics").val(imgUrl+","+res.imgUrl);
}
delete files[index]; //删除文件队列已经上传成功的文件
return;
};
}
});之前的代码时最初的版本，在公司原有的代码基础上修改的，时间久远，很多参数我也忘记了，更新一下后来的版本。
//给图片添加删除
function mouseChange() {
$(document).on("mouseenter mouseleave", ".file-iteme", function (event) {
if (event.type === "mouseenter") {
//鼠标悬浮
$(this).children(".info").fadeIn("fast");
$(this).children(".handle").fadeIn("fast");
} else if (event.type === "mouseleave") {
//鼠标离开
$(this).children(".info").hide();
$(this).children(".handle").hide();
}
});
}
mouseChange();
//图片删除事件
$(document).on("click", ".file-iteme .handle", function(event){
var currentImgUrl = $(this).next().data('value');
var values = $("#clubCoachPics").val().split(",");
var imageIndex = $(this).next().attr('index');
var that = $(this);
layer.confirm('您确定要删除这张图片么？', {
btn: ['确认','不要'] //按钮
}, function(index){
$.ajax({
type:"post",
url:$("#projectUrl").val()+"/clubInfo/deleteClubCoachPics.do",
data:"id="+$("#id").val()+"&str="+currentImgUrl,
success:function(res){
if(res.code==0){
var arr = [];
for( var i in values){
if (values[i] != currentImgUrl){
arr.push(values[i]);
}
}
$("#clubCoachPics").val(arr.join(",")) ;
if(imageIndex != null && imageIndex != ''){
delete files[imageIndex]; //删除对应的文件
}
that.parent().remove();
layer.close(index);
layer.msg('删除成功');
}else{
layer.msg(res.msg);
}
}
})
})
});
var index;
//多图片上传
var ImgList = $('#uploader-list'),uploadListIns =upload.render({
elem: '#chooseImg',
url: $("#projectUrl").val()+ '/img/imgUpload.do',
accept: 'images',
acceptMime: 'image/jpg,image/png,image/jpeg',
exts: 'jpg|png|jpeg',
size: 1024,
multiple: true,
auto: true,
number:6,
before: function(obj){
files = obj.pushFile(); //将每次选择的文件追加到文件队列
var fileLength = Object.keys(files).length;
var early = $("#clubCoachPics").val();
if (early == ""|| early == null){
early = 0;
}else {
early =early .split(",").length
}
var imgLength = early + fileLength;
if(imgLength > 6) {
layer.msg('上传图片数量不能超过6张', {
icon: 2,
time: 1500
});
//遍历
obj.preview(function (index, file, result) {
$.each(files, function (_key) {
var key = _key;
var value = files[_key];
if (_key == index) { //删除
delete files[_key];
}
});
});
return false;
}else{
index = layer.msg('正在上传，请稍候', {
icon: 16,
shade: 0.01,
time: 150000*10
});
//读取本地文件
obj.preview(function (index, file, result) {
var reader = new FileReader();
reader.onload = function (e) {
var image = new Image();
image.onload = function () {
var realWidth = image.width;
var realHeight = image.height;
var tr = $(['' +
' ' +
'' +
''].join(''));
ImgList.append(tr);
};
image.src = result;
};
//正式读取文件
reader.readAsDataURL(file);
});
}
},
done: function (res, index, upload) {
$("#img-"+ index + "").attr("data-value",res.imgUrl);
if(res.code == 0){ //上传成功
layer.msg("上传成功",{
id:1
});
var imgUrl = $("#clubCoachPics").val();
if(imgUrl==null||imgUrl==""){
$("#clubCoachPics").val(res.imgUrl);
}else{
$("#clubCoachPics").val(imgUrl+","+res.imgUrl);
}
}else{
$('#upload-'+ index).remove();
layer.msg('上传失败，请重新上传');
}
delete files[index]; //删除文件队列已经上传成功的文件
return;
},
error: function(index, upload){
$('#upload-'+ index).remove();
delete files[index];
layer.msg('上传失败，请重新上传');
}
});