i-image-upload
v1.0.2
Published
vue picture component. Resize and preview your uploaded image
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i-image-upload vue图片上传组件
vue picture component. Resize and preview your uploaded image
使用指南
import iImageUpload from 'i-image-upload'
import 'i-image-upload/dist/i-image-upload.css'
Vue.use(iImageUpload)
i-image-upload 代码演示
普通表单上传
可以在组件内部添加子节点传入自定义的上传按钮类型和文字提示
<form
action="http://localhost:1400/avatar"
method="post"
enctype="multipart/form-data"
>
<i-image-upload name="file">
<i class="demo-icon">+</i>
</i-image-upload>
<button>上传</button>
</form>
默认上传
使用 before-upload 限制用户上传的图片格式和大小, 只有返回 true, 才会继续上传图片,否则停止
<template>
<form>
<i-image-upload
name="file"
action="http://localhost:1400/avatar"
:before-upload="beforeUpload"
:on-preview="onPreview"
:on-success="onSuccess"
:on-error="onError"
>
<img v-if="imagePreview" :src="imagePreview" class="demo-avatar">
<i class="demo-icon" v-else>+</i>
</i-image-upload>
</form>
</template>
<script>
export default {
data () {
return {
imagePreview: ''
}
},
methods: {
beforeUpload (file) {
const isJPG = file.type === 'image/jpeg'
const isLt2M = file.size / 1024 / 1024 < 2
if (!isJPG) {
console.error('上传头像图片只能是 JPG 格式!')
}
if (!isLt2M) {
console.error('上传头像图片大小不能超过 2MB!')
}
return isJPG && isLt2M
},
onPreview (file) {
this.imagePreview = file
},
onSuccess (res, dataurl) {
console.log(res)
},
onError (res, dataurl) {
console.log(res)
this.imagePreview = ''
}
}
}
</script>
<style scoped>
.demo-icon {
border: 1px dashed lightblue;
width: 100px;
height: 100px;
text-align: center;
line-height: 100px;
display: block;
font-style: normal;
color: lightblue;
font-size: 26px;
}
.demo-avatar {
border: 1px dashed lightblue;
width: 100px;
height: 100px;
}
</style>
自定义ajax上传
使用 custom-handle-upload 覆盖默认的上传行为,可以自定义上传的实现
<template>
<form>
<i-image-upload
name="file"
action="http://localhost:1400/avatar"
resultType="blob"
:before-upload="beforeUpload"
:customHandleUpload="onhandleUpload"
:on-success="onSuccess"
:on-error="onError"
>
<img v-if="imagePreview" :src="imagePreview" class="demo-avatar">
<i class="demo-icon" v-else>+</i>
</i-image-upload>
</form>
</template>
<script>
export default {
data () {
return {
imagePreview: ''
}
},
methods: {
beforeUpload (file) {
const isJPG = file.type === 'image/jpeg'
const isLt2M = file.size / 1024 / 1024 < 2
if (!isJPG) {
console.error('上传头像图片只能是 JPG 格式!')
}
if (!isLt2M) {
console.error('上传头像图片大小不能超过 2MB!')
}
return isJPG && isLt2M
},
onhandleUpload (formatFile) {
this.imagePreview = formatFile
let filedata = new FormData()
filedata.append('file', data)
return fetch('http://localhost:1400/avatar', {
method: 'post',
mode: 'no-cors',
body: filedata
})
},
onSuccess (res, dataurl) {
console.log(res)
this.imagePreview = res.data.imageUrl
},
onError (res, dataurl) {
console.log(res)
this.imagePreview = ''
}
}
}
</script>
API
| 参数 | 说明 | 类型 | 默认值 |
|-----------|-----------|-----------|-------------|
| name | 上传的图片字段名 | String
| file
|
| disabled | 是否禁用 | Boolean
| false
|
| maxWidth | 不压缩上传的最大宽度autoScale为true的时候才有用 | Number
| 1024
|
| maxHeight | 不压缩上传的最大高度autoScale为true的时候才有用 | Number
| 1024
|
| autoScale | 上传图片超出maxWidth或者maxHeight时自动压缩 | Boolean
| true
|
| quality | 上传图像的质量,0 - 1.00之间的浮点数 | Boolean
| true
|
| scaleRatio | 上传图像的缩放比例,接受0 - 1之间的浮点数, 譬如0.5指缩放为原来的一半 | Number
| -
|
| autoRotate | 解析图像中的EXIF信息,并在上传之前正确旋转图像 | Boolean
| true
|
| capture | 设置可选的捕获属性 | String
| -
|
| resultType | 返回上传图片或者预览图片所需要的格式 | String ['base64', 'blob']
| base64
|
| action | 默认上传行为的上传地址 | String
| -
|
| custom-handle-upload | 覆盖默认的上传行为,可以自定义上传的实现 | function(file, extra)
| —
|
| before-upload | 上传图片之前的钩子,参数为上传的图片,只有返回 true, 才会继续上传图片,否则停止 | function(file)
| —
|
| on-preview | 预览上传图片的钩子 | function(file)
| —
|
| on-progress | 图片默认ajax上传时的钩子 | function(event, dataurl)
| —
|
| on-success | 图片上传成功时的钩子 | function(response, dataurl)
| —
|
| on-error | 图片上传失败时的钩子 | function(response, dataurl)
| —
|