前端
一、uploadList.vue
① 首先在页面中添加一个放置图片的位置,来展示图片
<el-table-column
prop="upload"
label="高校证明材料">
<template slot-scope="scope" v-if="scope.row.upload">
<el-image
style="height: 30%;width:30%;margin-left:22%;"
:src="src"
v-for="(src, index) in scope.row.upload.split(',')" :key="index"
:preview-src-list="scope.row.upload.split(',')">
</el-image>
</template>
</el-table-column>
② 在data中添加相关属性
data () {
return{
searchForm:{
upload: ''
},
loading: false,
src: '' // 上传图片
}
二、testForm.vue
① 在表单中添加下列代码
<el-col :span="12">
<el-form-item label="上传图片" prop="upload">
<el-upload
list-type="picture-card"
:action="`${this.$http.BASE_URL}/sys/file/webupload/upload?uploadPath=/upload`"
:headers="{token: $cookie.get('token')}"
:before-upload="beforeUpload"
:on-preview="(file, fileList) => {
$alert(`<img style='width:100%' src=' ${(file.response && file.response.url) || file.url}'/>`, {
dangerouslyUseHTMLString: true,
showConfirmButton: false,
closeOnClickModal: true,
customClass: 'showPic'
});
}"
:on-success="(response, file, fileList) => {
inputForm.collegeMaterials = fileList.map(item => (item.response && item.response.url) || item.url).join('|')
}"
:on-remove="(file, fileList) => {
$http.post(`/sys/file/webupload/deleteByUrl?url=${(file.response && file.response.url) || file.url}`).then(({data}) => {
$message.success(data.msg)
})
inputForm.collegeMaterials = fileList.map(item => item.url).join('|')
}"
:before-remove="(file, fileList) => {
return $confirm(`确定删除 ${file.name}?`)
}"
multiple
:limit="1"
:on-exceed="(files, fileList) =>{
$message.warning(`当前限制选择 1 个图片,本次选择了 ${files.length} 个文件,共选择了 ${files.length + fileList.length} 个图片`)
}"
:file-list="picArra">
<i class="el-icon-plus"></i>
</el-upload>
<el-dialog :visible.sync="dialogVisible">
<img width="100%" :src="dialogImageUrl" alt="">
</el-dialog>
</el-form-item>
</el-col>
② 在data中添加相关属性
data () {
return {
picArra: [],
dialogImageUrl: '',
dialogVisible: false,
disabled: false,
inputForm: {
upload: '',
}
}
}
③ 在method中替换原始的 this.$nextTick
this.visible = true
this.loading = false
// 重置图片路径,否则会加载上一次添加的图片
this.picArra = []
this.$nextTick(() => {
this.$refs.inputForm.resetFields()
if (method === 'edit' || method === 'view') { // 修改或者查看
this.loading = true
this.$http({
// upload为controller层的注解路径,替换一下即可
url: `/upload/queryById?id=${this.inputForm.id}`,
method: 'get'
}).then(({data}) => {
this.inputForm = this.recover(this.inputForm, data.college)
this.inputForm.upload.split('|').forEach((item) => {
if (item.trim().length > 0) {
this.picArra.push({name: decodeURIComponent(item.substring(item.lastIndexOf('/') + 1)), url: item})
}
})
this.loading = false
})
}
}),
// 查看图片
handlePictureCardPreview (file) {
this.dialogImageUrl = file.url
this.dialogVisible = true
},
continueDoSubmit () {
this.$refs['inputForm'].validate((valid) => {
if (valid) {
this.$emit('addRow', this.oldInputForm, JSON.parse(JSON.stringify(this.inputForm)))
this.$refs['inputForm'].resetFields()
}
})
},
// 判断上传图片的格式
beforeUpload (file) {
if (file) {
const suffix = file.name.split('.')[1]
const size = file.size / 1024 / 1024 < 2
if (['png', 'jpeg', 'jpg'].indexOf(suffix) < 0) {
this.$message.error('上传图片只支持 png、jpeg、jpg 格式!')
this.$refs.upload.clearFiles()
return false
}
if (!size) {
this.$message.error('上传文件大小不能超过 2MB!')
return false
}
return file
}
}
后端
后端只需要将相应的字段添加好即可,controller层不需要改动。
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