uniapp使用request下载图片，并且显示出来

<template>
	<view class="content">
		<image :src="img" ></image>
		<view class="text-area">
			<text class="title">{{title}}</text>
		</view>
	</view>
</template>
 
<script>
	export default {
		data() {
			return {
				title: 'Hello',
				img: ''
			}
		},
		onLoad() {
			this.getUrl();
		},
		methods: {
			getUrl: function() {
				let that = this;
				uni.request({
					url: "http://localhost:5167/home/index",
					method: "GET",
					responseType: 'arraybuffer',
					success(res) {
						const arrayBuffer = res.data;
						const blob = new Blob([arrayBuffer], {
							type: 'image/jpeg'
						}); // 创建 Blob 对象
						const imageUrl = URL.createObjectURL(blob); // 通过 Blob 对象创建图片 URL
						that.img = imageUrl; // 将获取到的图片 URL 赋值给 imageUrl
						console.log(that.img)
					}
				})
			}
		}
	}
</script>
 
<style>
	.content {
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
	}
 
	.logo {
		height: 200rpx;
		width: 200rpx;
		margin-top: 200rpx;
		margin-left: auto;
		margin-right: auto;
		margin-bottom: 50rpx;
	}
 
	.text-area {
		display: flex;
		justify-content: center;
	}
 
	.title {
		font-size: 36rpx;
		color: #8f8f94;
	}
</style>