pdf 上传和预览

pdf 上传和预览

要实现以上效果:


import { Field } from ‘vant‘;
Vue.use(Field);

<van-field name="uploader" label="文件上传">

<template #input>

<van-uploader :max-count="1" :after-read="afterRead" v-model="uploader" accept=".pdf">

<van-button icon="plus" type="primary" color="#00A2FF">上传文件</van-button> <!--蓝色的自定义的样式-->

</van-uploader>

</template>

</van-field>


在data里面:
uploader:[],

fileId :"",
methods 方面里面:

afterRead(file) {

/*this.uploader[0].content*/ //base64 的pdf 二进制码

this.uploadLibraryFile(this.uploader[0].content);

},


/*上传pdf的接口*/

uploadLibraryFile(pdfBase64){

api
.uploadLibraryFile({

file: pdfBase64,
type: "pdf",

})
.then((res) => {

if (res.code == 200) {

this.overlayShow = false ; /*遮道层消失*/

this.= res.data.fileId; /*返回的fileId*/


} else {

Toast.fail(res.message);

this.overlayShow = false ; ///*遮道层消失*/

}
});


},

addFile(){

if (this.pdfNodes.length == 0){

if (this.fileName == "" || this.fileName.match(/^\s*$/) ){

Toast.fail(‘文件名称不能为空‘);

return;

};


if (this.uploader.length == 0 ){

Toast.fail(‘请上传文件‘);

return;

};

}



this.overlayShow = true ; /*开始出现遮道层*/


/*接口已经改好,无需调整*/

api
.addMenu({

fileId: this.fileId ,
menuName: this.fileName,
parentMenuId: this.thirdMenuId, //父级ID
/* type: this.type //父级ID*/

})
.then((res) => {

if (res.code == 200) {

this.overlayShow = false ; /*遮道层消失*/

Toast.success(‘新增成功‘);

this.$router.push({

name: ‘productDescriptionForthClass‘,
params: {

type: this.type,
firstMenu: this.firstMenu,
secondMenuId: this.secondMenuId,
thirdMenuId: this.thirdMenuId,
thirdMName: this.thirdMName,

}

})



} else {

Toast.fail(res.message);

this.overlayShow = false ; ///*遮道层消失*/

}
});


},



//pdf 实现预览的效果:
通过pdf,js 实现

pdf 上传和预览

第一步:下载 http://mozilla.github.io/pdf.js/getting_started/#download
下载稳定版:
把下载文件放到static静态资源下面:build & web 两个文件夹
<template>
<div class="wrap">

<iframe :src="pSrc" width="100%" height="100%"></iframe>

</div>
</template>

data:
pSrc:‘‘,

 mounted () {

this.loadPDF();
//监听返回键


},

methods:
loadPDF () {

//baseurl :pdf存放的文件路径,可以是本地的,也可以是远程,这个是远程的,亲测可以用

/* let baseurl = ‘https://assettest.hzncc.cn/HncWeb/group1/M00/19/F6/CgEUdV8Nm5KALOf0AAM_XOvHKIY664.pdf‘;*/

//ie有缓存加个随机数解决 + ‘?r=‘ + new Date()
let pSrc = this.baseurl + ‘?r=‘ + new Date();

this.pSrc = ‘../../../static/web/viewer.html?file=‘ + encodeURIComponent(pSrc) + ‘.pdf‘;
},

<style scoped>
.wrap{
position: fixed;
top: 46px; /*由于有navbar 所以设置top 的高度,高度很重要*/
left: 0;
width: 100%;
bottom: 0;
}
</style>








pdf 上传和预览

上一篇:Hunter’s Apprentice(按顺序给定n个点,判断连起来是逆时针还是顺时针)


下一篇:Vue移动端flexible.js+MuseUi