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话不多说，直接上代码：
components中新建ImageUpload.vue文件：
<template>
<div class="component-upload-image">
<el-upload
:action="uploadImgUrl"
list-type="picture-card"
:on-success="handleUploadSuccess"
:before-upload="handleBeforeUpload"
:limit="limit"
:on-error="handleUploadError"
:on-exceed="handleExceed"
name="file"
:on-remove="handleRemove"
:show-file-list="true"
:headers="headers"
:file-list="fileList"
:on-preview="handlePictureCardPreview"
:class="{hide: this.fileList.length >= this.limit}"
>
<i class="el-icon-plus"></i>
</el-upload>
<!-- 上传提示 -->
<div class="el-upload__tip" slot="tip" v-if="showTip">
请上传
<template v-if="fileSize"> 大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b> </template>
<template v-if="fileType"> 格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b> </template>
的文件
</div>
<el-dialog
:visible.sync="dialogVisible"
title="预览"
width="800"
append-to-body
>
<img
:src="dialogImageUrl"
style="display: block; max-width: 100%; margin: 0 auto"
/>
</el-dialog>
</div>
</template>
<script>
// 根据具体情况获取项目中的token值
import { getToken } from "@/utils/auth";
export default {
props: {
value: [String, Object, Array],
valueimg: {
type: String,
default: '',
},
// 图片数量限制
limit: {
type: Number,
default: 5,
},
// 大小限制(MB)
fileSize: {
type: Number,
default: 5,
},
// 文件类型, 例如['png', 'jpg', 'jpeg']
fileType: {
type: Array,
default: () => ["png", "jpg", "jpeg"],
},
// 是否显示提示
isShowTip: {
type: Boolean,
default: true
}
},
data() {
return {
dialogImageUrl: "",
dialogVisible: false,
hideUpload: false,
baseUrl: process.env.VUE_APP_BASE_API,
uploadImgUrl: process.env.VUE_APP_BASE_API + "/common/upload", // 上传的图片服务器地址
headers: {
token: "Bearer " + getToken(),
},
fileList: []
};
},
watch: {
value: {
handler(val) {
if (val) {
this.fileList = []
this.fileList = [
{
url:this.baseUrl + val
}
]
// 首先将值转为数组
// const list = Array.isArray(val) ? val : this.value.split(',');
// // 然后将数组转为对象数组
// this.fileList = list.map(item => {
// if (typeof item === "string") {
// if (item.indexOf(this.baseUrl) === -1) {
// item = { name: this.baseUrl + item, url: this.baseUrl + item };
// } else {
// item = { name: item, url: item };
// }
// }
// return item;
// });
} else {
this.fileList = [];
return [];
}
},
deep: true,
immediate: true
},
valueimg(val){
if(val=='1'){
this.fileList = []
}
},
},
computed: {
// 是否显示提示
showTip() {
return this.isShowTip && (this.fileType || this.fileSize);
},
},
methods: {
// 删除图片
handleRemove(file, fileList) {
const findex = this.fileList.map(f => f.name).indexOf(file.name);
this.fileList.splice(findex, 1);
this.$emit("input", this.listToString(this.fileList));
},
// 上传成功回调
handleUploadSuccess(res) {
console.log(125,res)
this.fileList.push({ name: res.fileName, url: res.url });
this.$emit("input", this.listToString(this.fileList));
this.loading.close();
},
// 上传前loading加载
handleBeforeUpload(file) {
let isImg = false;
if (this.fileType.length) {
let fileExtension = "";
if (file.name.lastIndexOf(".") > -1) {
fileExtension = file.name.slice(file.name.lastIndexOf(".") + 1);
}
isImg = this.fileType.some(type => {
if (file.type.indexOf(type) > -1) return true;
if (fileExtension && fileExtension.indexOf(type) > -1) return true;
return false;
});
} else {
isImg = file.type.indexOf("image") > -1;
}
if (!isImg) {
this.$message.error(
`文件格式不正确, 请上传${this.fileType.join("/")}图片格式文件!`
);
return false;
}
if (this.fileSize) {
const isLt = file.size / 1024 / 1024 < this.fileSize;
if (!isLt) {
this.$message.error(`上传头像图片大小不能超过 ${this.fileSize} MB!`);
return false;
}
}
this.loading = this.$loading({
lock: true,
text: "上传中",
background: "rgba(0, 0, 0, 0.7)",
});
},
// 文件个数超出
handleExceed() {
this.$message.error(`上传文件数量不能超过 ${this.limit} 个!`);
},
// 上传失败
handleUploadError() {
this.$message({
type: "error",
message: "上传失败",
});
this.loading.close();
},
// 预览
handlePictureCardPreview(file) {
this.dialogImageUrl = file.url;
this.dialogVisible = true;
},
// 对象转成指定字符串分隔
listToString(list, separator) {
let strs = "";
separator = separator || ",";
for (let i in list) {
strs += list[i].url.replace(this.baseUrl, "") + separator;
}
return strs != '' ? strs.substr(0, strs.length - 1) : '';
}
}
};
</script>
<style scoped lang="scss">
// .el-upload--picture-card 控制加号部分
::v-deep.hide .el-upload--picture-card {
display: none;
}
// 去掉动画效果
::v-deep .el-list-enter-active,
::v-deep .el-list-leave-active {
transition: all 0s;
}
::v-deep .el-list-enter, .el-list-leave-active {
opacity: 0;
transform: translateY(0);
}
</style>
main.js文件中全局引用
// 图片上传组件
import ImageUpload from "@/components/ImageUpload"
// 全局组件挂载
Vue.component('ImageUpload', ImageUpload)
在userfilings.vue文件中引入该组件
<template>
<div class="cardimg">
<ImageUpload @input="tapapplicationForm" :value="valueimg"></ImageUpload>
</div>
</template>
<script>
export default {
name: "Management",
data() {
return {
valueimg1:'',
}
},
methods:{
/** 修改按钮操作，将图片回显展示 */
handleUpdate(row) {
/** 为了使组件中的value值有效监听，需要在点击修改按钮时先将valueimg 值清空 */
this.valueimg = ''
getManagement(id).then(response => {
this.form = response.data;
/** 将返回的图片地址赋值给 valueimg */
this.valueimg = this.form.applicationForm
this.open = true;
this.title = "修改考核信息管理";
});
}
}
}
</script>
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