昨天遇到了一个后端传输导致nginx502的问题
明天在调整了代码之后，遂将解决方案贴出
前端直传的益处:加重应用服务器的压力，将压力分给了oss 这一点特地是在上传大文件时特地显著的，php是要耗费很大一部分内存去解决前端分片上传来的文件再传输给oss，如果文件特地大，耗时长nginx会间接
502咱们没必要去调整nginx的超时工夫把路走窄了。间接由客户端直传oss吧。
实现后效果图
因为dcat-admin是高度封装的。改它的组件根本不事实，不过$form->view()办法能够引入一个视图文件.我的想法是用vue封装一个上传的组件，而后通过该办法引入。正好laravel提供了前端脚手架laravel mix 整合了vue。
- laravel版本7.x
#### 开始一套梭
composer require laravel/ui --dev //装置前端脚手架
php artisan ui vue //公布vue文件
npm install
npm install ali-oss --save //装置oss js-sdk
npm install clipboard --save //装置复制插件
npm run watch //命令监督热加载、编译应用element-ui的组件,所以咱们引入它
npm i element-ui -S在app.js文件全局加载
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';
Vue.use(ElementUI);
import Clipboard from 'clipboard';
Vue.prototype.Clipboard=Clipboard;
并新建组件OssFile
<template>
<div>
<el-upload
class="upload-demo"
action=""
ref="upload"
:file-list="fileList"
:limit="2"
:on-change="handleChange"
:on-remove="handleRemove"
:auto-upload="false"
accept=""
>
<el-button slot="trigger" size="small" type="primary">选取文件</el-button>
<el-button style="margin-left: 10px;" size="small" type="success" @click="submitForm">直传oss</el-button>
<el-button style="margin-left: 10px;" size="small" type="success" @click="resumeUpload">持续</el-button>
<el-button style="margin-left: 10px;" size="small" type="success" @click="stopUplosd">暂停</el-button>
<el-button style="margin-left: 10px;" size="small" type="success" @click="abortMultipartUpload">革除切片</el-button>
</el-upload>
<el-progress :percentage="percentage" :status="uploadStatus"></el-progress>
<span
class="copybtn"
@click="copy"
:data-clipboard-text="fileName"
>
{{ fileName }}
</span>
</div>
</template>
<script>
import Clipboard from 'clipboard';
let OSS = require('ali-oss') // 引入ali-oss插件
const client = new OSS({
region: 'oss-cn-shenzhen',//依据那你的Bucket地点来填写
accessKeyId: '',//本人账户的accessKeyId
accessKeySecret: '',//本人账户的accessKeySecret
bucket: '',//bucket名字
});
export default {
name: "OssFile",
data () {
return {
fileName:"",
fileList:[],
file: null,
tempCheckpoint: null, // 用来缓存以后切片内容
uploadId: '',
uploadStatus: null, // 进度条上传状态
percentage: 0, // 进度条百分比
uploadName: '', //Object所在Bucket的残缺门路
}
},
mounted() {
window.addEventListener('online', this.resumeUpload);
},
methods: {
copy()
{
var clipboard = new Clipboard(".copybtn");
clipboard.on("success", (e) => {
this.$message({
message: '复制胜利',
type: 'success'
});
// 开释内存
clipboard.destroy();
});
clipboard.on("error", (e) => {
// 不反对复制
this.$message({
message: '该浏览器不反对主动复制',
type: 'success'
});
// 开释内存
clipboard.destroy();
});
},
// 点击上传至服务器
submitForm(file) {
this.multipartUpload();
},
// 勾销分片上传事件
async abortMultipartUpload() {
window.removeEventListener('online', this.resumeUpload)
const name = this.uploadName; // Object所在Bucket的残缺门路。
const uploadId = this.upload; // 分片上传uploadId。
const result = await client.abortMultipartUpload(name, uploadId);
console.log(result, '=======革除切片====');
},
// 暂停分片上传。
stopUplosd () {
window.removeEventListener('online', this.resumeUpload) // 暂停时革除工夫监听
let result = client.cancel();
console.log( result, '---------暂停上传-----------')
},
// 切片上传
async multipartUpload () {
if (!this.file) {
this.$message.error('请抉择文件')
return
}
console.log("this.uploadStatus",this.file, this.uploadStatus);
console.log("文件列表:"+this.fileList)
console.log("文件:"+this.file)
this.percentage = 0
try {
//object-name能够自定义为文件名（例如file.txt）或目录（例如abc/test/file.txt）的模式，实现将文件上传至以后Bucket或Bucket下的指定目录。
let result = await client.multipartUpload(this.file.name, this.file, {
headers: {
'Content-Disposition': 'inline',
'Content-Type': this.file.type //留神：依据图片或者文件的后缀来设置，我试验用的‘.png’的图片，具体为什么下文解释
},
progress: (p, checkpoint) => {
this.tempCheckpoint = checkpoint;
this.upload = checkpoint.uploadId
this.uploadName = checkpoint.name
this.percentage = p * 100
// console.log(p, checkpoint, this.percentage, '---------uploadId-----------')
// 断点记录点。浏览器重启后无奈间接持续上传，您须要手动触发上传操作。
},
meta: { year: 2020, people: 'dev' },
mime: this.file.type
});
console.log(result, this.percentage, 'result= 切片上传完毕=');
this.$nextTick(()=>{
this.fileName = 'https://image.mythinkcar.cn/'+result.name
})
console.log(this.fileName)
} catch (e) {
console.log(e)
window.addEventListener('online', this.resumeUpload) // 该监听放在断网的异样解决
// 捕捉超时异样。
if (e.code === 'ConnectionTimeoutError') { // 申请超时异样解决
this.uploadStatus = 'exception'
console.log("TimeoutError");
}
}
},
// 复原上传。
async resumeUpload () {
window.removeEventListener('online', this.resumeUpload)
if (!this.tempCheckpoint) {
this.$message.error('请先上传')
return
}
this.uploadStatus = null
try {
let result = await client.multipartUpload(this.file.name, this.file, {
headers: {
'Content-Disposition': 'inline',
'Content-Type': this.file.type //留神：依据图片或者文件的后缀来设置，我试验用的‘.png’的图片，具体为什么下文解释
},
progress: (p, checkpoint) => {
this.percentage = p * 100
console.log(p, checkpoint, 'checkpoint----复原上传的切片信息-------')
this.tempCheckpoint = checkpoint;
},
checkpoint: this.tempCheckpoint,
meta: { year: 2020, people: 'dev' },
mime: this.file.type
})
console.log(result, 'result-=-=-复原上传完毕')
} catch (e) {
console.log(e, 'e-=-=-');
}
},
// 抉择文件产生扭转
handleChange(file, fileList) {
this.fileList = fileList.filter(row => row.uid == file.uid)
this.file = file.raw
// 文件扭转时上传
// this.submitForm(file)
},
handleRemove(file, fileList) {
this.percentage = 0 //进度条置空
this.fileList = []
},
}
}
</script>
<style>
.avatar-uploader .el-upload {
border: 1px dashed #d9d9d9;
border-radius: 6px;
cursor: pointer;
position: relative;
overflow: hidden;
}
.avatar-uploader .el-upload:hover {
border-color: #409EFF;
}
.avatar-uploader-icon {
font-size: 28px;
color: #8c939d;
width: 150px;
height: 150px;
line-height: 150px;
text-align: center;
}
.avatar {
width: 150px;
height: 150px;
display: block;
}
</style>
app.js中引入组件
Vue.component('oss-file', require('./components/uploads/OssFile.vue').default);view目录新建oss.blade.php 引入组件 <oss-file></oss-file>
<link rel="stylesheet" href="{{mix('css/app.css')}}">
<div id="app">
<div class="container">
<oss-file></oss-file>
</div>
</div>
<script src="{{mix('js/app.js')}}"></script>最初
$form->html(view('uploads.oss'));
$form->text('link','直传后填入地址');完满解决～～～
碰到的问题
- oss 跨域问题
- oss 呈现 RequestId 错误处理办法 新增`ETag
x-oss-request-id`
参考文章
- oss文档
*阿里 oss 呈现 RequestId 错误处理办法
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