在官网首页如何打开指南的pdf
vue版本: "vue": "^2.6.14"
vue-pdf版本: "vue-pdf": "^4.2.0"、"vue-pdf": "^4.3.0"
来源 https://blog.csdn.net/qq_41653151/article/details/115001236
安装指令: npm install --save vue-pdf
组件模板
<template>
<div class="pdf">
<div class="show">
ref="pdf"
:src="pdfUrl"
:page="pageNum"
:rotate="pageRotate"
@password="password"
@progress="loadedRatio = $event"
@page-loaded="pageLoaded($event)"
@num-pages="pageTotalNum = $event"
@error="pdfError($event)"
@link-clicked="page = $event"
>
</pdf>
</div>
<div class="pdf_footer">
<div class="info">
<div>当前页数/总页数：{{ pageNum }}/{{ pageTotalNum }}</div>
<div>进度：{{ loadedRatio }}</div>
<div>页面加载成功: {{ curPageNum }}</div>
</div>
<div class="operate">
<div class="btn" @click.stop="clock">顺时针</div>
<div class="btn" @click.stop="counterClock">逆时针</div>
<div class="btn" @click.stop="prePage">上一页</div>
<div class="btn" @click.stop="nextPage">下一页</div>
<div class="btn" @click="scaleD">放大</div>
<div class="btn" @click="scaleX">缩小</div>
<div class="btn" @click="pdfPrint()">打印所有指定页</div>
<div class="btn" @click="pdfPrintAll()">打印所有</div>
<div class="btn" @click="logContent()">获取页面信息</div>
<div class="btn" @click="fileDownload(pdfUrl, 'pdf文件')">下载</div>
</div>
</div>
</div>
</template>
<script>
/* eslint-disable */
import pdf from "vue-pdf";
export default {
name: "vue_pdf_preview",
props: {
// 当前pdf路径
pdfUrl: {
type: String,
default:
"http://storage.xuetangx.com/public_assets/xuetangx/PDF/PlayerAPI_v1.0.6.pdf",
},
},
components: {
pdf,
},
data() {
return {
// 总页数
pageTotalNum: 1,
// 当前页数
pageNum: 1,
// 加载进度
loadedRatio: 0,
// 页面加载完成
curPageNum: 0,
// 放大系数 默认百分百
scale: 100,
// 旋转角度 ‘90’的倍数才有效
pageRotate: 0,
// 单击内部链接时触发 (目前我没有遇到使用场景)
page: 0,
};
},
watch: {},
computed: {},
created() {},
mounted() {},
methods: {
//下载PDF
fileDownload(data, fileName) {
let blob = new Blob([data], {
//type类型后端返回来的数据中会有，根据自己实际进行修改
type: "application/pdf;charset-UTF-8",
});
let filename = fileName || "pdf.pdf";
if (typeof window.navigator.msSaveBlob !== "undefined") {
window.navigator.msSaveBlob(blob, filename);
} else {
var blobURL = window.URL.createObjectURL(blob);
// 创建隐藏<a>标签进行下载
var tempLink = document.createElement("a");
tempLink.style.display = "none";
tempLink.href = blobURL;
tempLink.setAttribute("download", filename);
if (typeof tempLink.download === "undefined") {
tempLink.setAttribute("target", "_blank");
}
document.body.appendChild(tempLink);
tempLink.click();
document.body.removeChild(tempLink);
window.URL.revokeObjectURL(blobURL);
}
},
//放大
scaleD() {
this.scale += 5;
this.$refs.pdf.$el.style.width = parseInt(this.scale) + "%";
},
//缩小
scaleX() {
// scale 是百分百展示 不建议缩放
if (this.scale == 100) {
return;
}
this.scale += -5;
console.log(parseInt(this.scale) + "%");
this.$refs.pdf.$el.style.width = parseInt(this.scale) + "%";
},
// 切换上一页
prePage() {
var p = this.pageNum;
p = p > 1 ? p - 1 : this.pageTotalNum;
this.pageNum = p;
},
// 切换下一页
nextPage() {
var p = this.pageNum;
p = p < this.pageTotalNum ? p + 1 : 1;
this.pageNum = p;
},
// 顺时针选中角度
clock() {
this.pageRotate += 90;
},
// 逆时针旋转角度
counterClock() {
this.pageRotate -= 90;
},
// pdf 有密码 则需要输入秘密
password(updatePassword, reason) {
updatePassword(prompt('password is "test"'));
console.log("...reason...");
console.log(reason);
console.log("...reason...");
},
// 页面加载成功 当前页数
pageLoaded(e) {
this.$emit("current", e);
this.curPageNum = e;
},
// 异常监听
pdfError(error) {
console.error(error);
},
// 打印所有
pdfPrintAll() {
this.$refs.pdf.print();
},
// 打印 第一页和第二页
pdfPrint() {
// 第一个参数 文档打印的分辨率
// 第二个参数 文档打印的页数
this.$refs.pdf.print(100, [1, 2]);
},
// 获取当前页面pdf的文字信息内容
logContent() {
this.$refs.pdf.pdf.forEachPage(function (page) {
return page.getTextContent().then(function (content) {
let text = content.items.map((item) => item.str);
let allStr = content.items.reduce(
(initVal, item) => (initVal += item.str),
""
);
console.log(allStr); // 内容字符串
console.log(text); // 内容数组
});
});
},
},
};
</script>
<style lang="scss" scoped>
.pdf {
padding: 20px;
.show {
overflow: auto;
margin: auto;
max-width: 75%;
height: 80vh;
// max-height: 530px;
}
.pdf_footer {
position: sticky;
bottom: 0;
left: 0;
right: 0;
padding: 10px 0;
background-color: rgba(255, 255, 255, 0.5);
.info {
display: flex;
flex-wrap: wrap;
div {
width: 30%;
}
}
.operate {
margin: 10px 0 0;
display: flex;
flex-wrap: wrap;
div {
// width: 80px;
text-align: center;
font-size: 15px;
}
.btn {
cursor: pointer;
margin: 5px 10px;
width: 120px;
border-radius: 10px;
padding: 5px;
color: #fff;
background-color: #3dcbbc;
}
}
}
}
</style>
