图片上传回显，同时可以删除图片重新上传。演示地址：演示地址
1、前台代码
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" lang="ch">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" th:href="@{/static/layuiadmin/layui/css/layui.css}"/>
<link rel="stylesheet" type="text/css" th:href="@{/static/font-awesome/css/font-awesome.css}"/>
<script type="text/javascript" th:src="@{/static/plugins/jquery/dist/jquery.min.js}"></script>
<script type="text/javascript" th:src="@{/static/js/vue.js}"></script>
<script src="//cdn.jsdelivr.net/npm/xgplayer/browser/index.js" type="text/javascript"></script>
<!--视频播放组件js-->
<title>标题</title>
<script th:inline="javascript">
var basePath = [[${#httpServletRequest.getScheme() + "://" + #httpServletRequest.getServerName() + ":" + #httpServletRequest.getServerPort() + #httpServletRequest.getContextPath()}]];
</script>
<style type="text/css">
.imgDiv {
display: inline-block;
position: relative;
border: 1px solid #C1C1C1;
margin: 5px;
}
.imgDiv .delete {
position: absolute;
top: 0px;
right: 0px;
display: none;
}
</style>
</head>
<body>
<form class="layui-form" id="goodsform" style="margin-top: 10px">
<div class="layui-form-item">
<label class="layui-form-label"><span style="color: red">*</span>商品名称</label>
<div class="layui-input-block">
<input type="text" name="commname" lay-verify="required" autocomplete="off" placeholder="请输入商品名称"
class="layui-input">
</div>
</div>
<div class="layui-form-item layui-form-text">
<label class="layui-form-label"><span style="color: red">*</span>商品描述</label>
<div class="layui-input-block">
<textarea placeholder="请输入商品描述" name="commdesc" lay-verify="required" autocomplete="off"
class="layui-textarea"></textarea>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">商品视频</label>
<div class="layui-input-inline">
<input type="text" name="videourl" lay-verify="required"
autocomplete="off" class="layui-input" readonly="readonly"
style="cursor:not-allowed;width:220px;display: none" id="videourl">
<div id="mse"></div>
</div>
<div class="layui-inline">
<button type="button" class="layui-btn" id="test1">上传视频</button>
</div>
</div>
<div class="layui-form-item layui-form-text">
<label class="layui-form-label"><span style="color: red">*</span>商品原价</label>
<div class="layui-input-block">
<input type="number" name="orimoney" lay-verify="required" autocomplete="off" placeholder="请输入商品原价"
class="layui-input">
</div>
</div>
<div class="layui-form-item layui-form-text">
<label class="layui-form-label"><span style="color: red">*</span>商品售价</label>
<div class="layui-input-block">
<input type="number" name="thinkmoney" lay-verify="required" autocomplete="off" placeholder="请输入商品售价"
class="layui-input">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label"><span style="color: red">*</span>商品类别</label>
<div class="layui-input-block">
<select name="category" lay-filter="required">
<option value="3C数码" selected="">3C数码</option>
<option value="书籍">书籍</option>
<option value="生活用品">生活用品</option>
<option value="服饰">服饰</option>
<option value="美妆">美妆</option>
<option value="出行">出行</option>
<option value="其他">其他</option>
</select>
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label"><span style="color: red">*</span>常用选项</label>
<div class="layui-input-block">
<input type="radio" name="common" value="不议价" title="不议价" checked="">
<input type="radio" name="common" value="可小刀" title="可小刀">
<input type="radio" name="common2" value="可送货" title="可送货" checked="">
<input type="radio" name="common2" value="仅自提" title="仅自提">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label"><span style="color: red">*</span>商品主图</label>
<div class="layui-inline">
<button type="button" class="layui-btn" id="test2">上传主图</button>
</div>
</div>
<div id="mainimage" style="display: none;margin-top:0px">
<img :src="mainimg" style="width:300px;height:200px;cursor: pointer" id="imageurl"
@click="openimg(mainimg)">
</div>
<div class="layui-form-item">
<label class="layui-form-label"><span style="color: red">*</span>商品其他图</label>
<div class="layui-inline">
<button type="button" class="layui-btn" id="test3">上传其他图（最多3张）</button>
</div>
</div>
<div id="otherimages" style="margin-top:0px;display: none">
<div class="imgDiv" v-for="(img,index) in listimages"
:key="index" :id="'img'+index" @mouseover="mouseOver(index)" @mouseleave="mouseLeave(index)">
<img :src="img.imgsrc" style="width:300px;height:200px;cursor: pointer" @click="openimg(img.imgsrc)">
<img src="https://img-blog.csdnimg.cn/20191230200647337.png" class="delete"
@click="delimage(index)" :id="'del'+index" style="cursor: pointer">
</div>
</div>
</form>
</body>
<script type="text/javascript" th:src="@{/static/layuiadmin/layui/layui.js}"></script>
<script type="text/javascript">
var app = new Vue({
el: '#goodsform',
data() {
return {
listimages: [],
mainimg:""
}
},
mounted: function () {
window.showlistimages = this.showlistimages;
window.setmainimgurl = this.setmainimgurl;
},
methods: {
showlistimages: function (imgurl) {
var that = this;
if(that.listimages.length!==3){
var object = new Object();
object["imgsrc"] = imgurl;
that.listimages.push(object);//向vue数组中添加图片
}
},setmainimgurl: function (imgurl) {
var that = this;
that.mainimg=imgurl;
},delimage:function (ids) {
var that = this;
that.listimages.splice(ids,1);//从vue数组中删除此图
},mouseOver:function (id) {
$("#del"+id).show();
},mouseLeave:function (id) {
$("#del"+id).hide();
},openimg:function (imgsrc) {
var img = '<img src="'+imgsrc+'" style="width:100%;height:100%">'
layer.open({
type: 1,
title: false,
shade: 0.6,
closeBtn: 0, //不显示关闭按钮
anim: 2,
shadeClose: true, //开启遮罩关闭
content: img
});
}
}
});
let player=null;
layui.use(['form', 'upload', 'element'], function () {
var upload = layui.upload;
var element = layui.element;
upload.render({
elem: '#test3'
, url: basePath + '/relgoods/images'
, accept: 'images' //图片
, size: 1024 * 20
, exts: 'png|jpg'
, multiple: true
, number: 3
, choose: function (obj) {
//上传前判断已经上传了多少张图片
var imgs = document.getElementById("otherimages").getElementsByTagName("img");
if (imgs.length === 6) {
layer.msg('最多上传三张图片');
layer.close(obj);//报错让其停止上传
}
}
, progress: function (n) {
var percent = n + '%';
layer.msg(percent, {
icon: 16
, shade: 0.01
});
}
, done: function (res) {
//如果上传失败
if (res.code > 0) {
return layer.msg('上传失败');
} else {
layer.closeAll('loading');
layer.msg('上传成功', {
time: 1000,
icon: 1,
offset: '150px'
});
showlistimages(res.data.src[0]);
$("#otherimages").show();
}
}
, error: function () {
layer.closeAll('loading');
layer.msg('上传失败', {
time: 1000,
icon: 2,
offset: '150px'
});
}
});
upload.render({
elem: '#test2'
, url: basePath + '/relgoods/video'
, accept: 'images' //图片
, size: 1024 * 20
, exts: 'png|jpg'
, progress: function (n) {
var percent = n + '%'; //获取进度百分比
layer.msg(percent, {
icon: 16
, shade: 0.01
});
}
, done: function (res) {
//如果上传失败
if (res.code > 0) {
return layer.msg('上传失败');
} else {
layer.closeAll('loading');
layer.msg('上传成功', {
time: 1000,
icon: 1,
offset: '150px'
});
setmainimgurl(res.data.src);
$("#mainimage").show();
}
}
, error: function () {
layer.closeAll('loading');
layer.msg('上传失败', {
time: 1000,
icon: 2,
offset: '150px'
});
}
});
var uploadInst = upload.render({
elem: '#test1'
, url: basePath + '/relgoods/video'
, accept: 'video' //视频
, size: 1024 * 400
, exts: 'mp4'
, progress: function (n) {
var percent = n + '%'; //获取进度百分比
layer.msg(percent, {
icon: 16
, shade: 0.01
});
}
, done: function (res) {
//如果上传失败
if (res.code > 0) {
return layer.msg('上传失败');
} else {
layer.closeAll('loading');
layer.msg('上传成功', {
time: 1000,
icon: 1,
offset: '150px'
});
$("#videourl").val(res.data.src);
player = new Player({
id: 'mse',
url: basePath+res.data.src,
width: 600,
height: 337.5
});
}
}
, error: function () {
layer.closeAll('loading');
layer.msg('上传失败', {
time: 1000,
icon: 2,
offset: '150px'
});
}
});
});
</script>
</html>
2、后台代码
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.io.FilenameUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
@Controller
public class UserController {
@PostMapping("/relgoods/video")
@ResponseBody
public JSONObject relgoodsvideo(@RequestParam(value = "file", required = false) MultipartFile file) throws IOException {
JSONObject res = new JSONObject();
JSONObject resUrl = new JSONObject();
String filename = UUID.randomUUID().toString().replaceAll("-", "");
String ext = FilenameUtils.getExtension(file.getOriginalFilename());
String filenames = filename + "." + ext;
String pathname = "D:\\file\\" + filenames;
file.transferTo(new File(pathname));
resUrl.put("src", "/pic/"+filenames);
res.put("msg", "");
res.put("code", 0);
res.put("data", resUrl);
return res;
}
@PostMapping(value="/relgoods/images")
@ResponseBody
public JSONObject relgoodsimages(@RequestParam(value = "file", required = false) MultipartFile[] file) throws IOException {
JSONObject res = new JSONObject();
JSONObject resUrl = new JSONObject();
List<String> imageurls=new ArrayList<>();
for (MultipartFile files:file){
String filename = UUID.randomUUID().toString().replaceAll("-", "");
String ext = FilenameUtils.getExtension(files.getOriginalFilename());
String filenames = filename + "." + ext;
String pathname = "D:\\file\\" + filenames;
files.transferTo(new File(pathname));
imageurls.add("/pic/"+filenames);
res.put("msg", "");
res.put("code", 0);
}
resUrl.put("src", imageurls);
res.put("data", resUrl);
return res;
}
}
