<template>
<div><br/>
操作步骤:<br/>
1、点击“选择文件”,选择要上传的文件<br/>
2、点击“开始上传”,开始上传文件<br/>
3、如需重新上传请重复上边的步骤。<br/><br/>
<div id="uploader" class="wu-example">
<div class="btns" style="float:left;padding-right: 20px">
<div id="picker">选择文件</div>
</div>
<div id="ctlBtn" class="webuploader-pick" @click="upload()">开始上传</div>
</div>
<!--用来存放文件信息-->
<div id="thelist" class="uploader-list" >
<div v-if="uploadFile.id" :id='uploadFile.id'><span>{{uploadFile.name}}</span> <span class='percentage'>{{percentage}}%</span></div>
</div>
</div>
</template>
<script>
import $ from '../../../../static/plugins/jquery/dist/jquery.js'
import webuploader from '../../../../static/plugins/webuploader/dist/webuploader.js'
import '../../../../static/css/webuploader/webuploader.css'
export default{
data(){
return{
uploader:{},
uploadFile:{},
percentage:0,
fileMd5:''
}
},
methods:{
//开始上传
upload(){
if(this.uploadFile && this.uploadFile.id){
this.uploader.upload(this.uploadFile.id);
}else{
alert("请选择文件");
}
}
},
mounted(){
// var fileMd5;
// var uploadFile;
WebUploader.Uploader.register({
"before-send-file":"beforeSendFile",
"before-send":"beforeSend",
"after-send-file":"afterSendFile"
},{
beforeSendFile:function(file) {
// 创建一个deffered,用于通知是否完成操作
var deferred = WebUploader.Deferred();
// 计算文件的唯一标识,用于断点续传
(new WebUploader.Uploader()).md5File(file, 0, 100*1024*1024)
.then(function(val) {
this.fileMd5 = val;
this.uploadFile = file;
// alert(this.fileMd5 )
//向服务端请求注册上传文件
$.ajax(
{
type:"POST",
url:"/api/media/upload/register",
data:{
// 文件唯一表示
fileMd5:this.fileMd5,
fileName: file.name,
fileSize:file.size,
mimetype:file.type,
fileExt:file.ext
},
dataType:"json",
success:function(response) {
if(response.success) {
//alert('上传文件注册成功开始上传');
deferred.resolve();
} else {
alert(response.message);
deferred.reject();
}
}
}
);
}.bind(this));
return deferred.promise();
}.bind(this),
beforeSend:function(block) {
var deferred = WebUploader.Deferred();
// 每次上传分块前校验分块,如果已存在分块则不再上传,达到断点续传的目的
$.ajax(
{
type:"POST",
url:"/api/media/upload/checkchunk",
data:{
// 文件唯一表示
fileMd5:this.fileMd5,
// 当前分块下标
chunk:block.chunk,
// 当前分块大小
chunkSize:block.end-block.start
},
dataType:"json",
success:function(response) {
if(response.fileExist) {
// 分块存在,跳过该分块
deferred.reject();
} else {
// 分块不存在或不完整,重新发送
deferred.resolve();
}
}
}
);
//构建fileMd5参数,上传分块时带上fileMd5
this.uploader.options.formData.fileMd5 = this.fileMd5;
this.uploader.options.formData.chunk = block.chunk;
return deferred.promise();
}.bind(this),
afterSendFile:function(file) {
// 合并分块
$.ajax(
{
type:"POST",
url:"/api/media/upload/mergechunks",
data:{
fileMd5:this.fileMd5,
fileName: file.name,
fileSize:file.size,
mimetype:file.type,
fileExt:file.ext
},
success:function(response){
//在这里解析合并成功结果
if(response && response.success){
alert("上传成功")
}else{
alert("上传失败")
}
}
}
);
}.bind(this)
}
);
// 创建uploader对象,配置参数
this.uploader = WebUploader.create(
{
swf:"/static/plugins/webuploader/dist/Uploader.swf",//上传文件的flash文件,浏览器不支持h5时启动flash
server:"/api/media/upload/uploadchunk",//上传分块的服务端地址,注意跨域问题
fileVal:"file",//文件上传域的name
pick:"#picker",//指定选择文件的按钮容器
auto:false,//手动触发上传
disableGlobalDnd:true,//禁掉整个页面的拖拽功能
chunked:true,// 是否分块上传
chunkSize:1*1024*1024, // 分块大小(默认5M)
threads:3, // 开启多个线程(默认3个)
prepareNextFile:true// 允许在文件传输时提前把下一个文件准备好
}
);
// 将文件添加到队列
this.uploader.on("fileQueued", function(file) {
this.uploadFile = file;
this.percentage = 0;
}.bind(this)
);
//选择文件后触发
this.uploader.on("beforeFileQueued", function(file) {
// this.uploader.removeFile(file)
//重置uploader
this.uploader.reset()
this.percentage = 0;
}.bind(this));
// 监控上传进度
// percentage:代表上传文件的百分比
this.uploader.on("uploadProgress", function(file, percentage) {
this.percentage = Math.ceil(percentage * 100);
}.bind(this));
//上传失败触发
this.uploader.on("uploadError", function(file,reason) {
console.log(reason)
alert("上传文件失败");
});
//上传成功触发
this.uploader.on("uploadSuccess", function(file,response ) {
console.log(response)
// alert("上传文件成功!");
});
//每个分块上传请求后触发
this.uploader.on( 'uploadAccept', function( file, response ) {
if(!(response && response.success)){//分块上传失败,返回false
return false;
}
});
}
}
</script>
<style scoped>
</style>
来源:CSDN
作者:心动不动就痛
链接:https://blog.csdn.net/u013421917/article/details/104052749