H5内嵌到APP-实现PDF浏览功能

1、下载插件

npm install vue-pdf-embed vue3-pdfjs

vue3-pdfjs：获取PDF文件总页数

2、页面引入并使用

<template><div class="vuePdfEmbed"><div class="wraper" v-if="flagCover"><div class="articleTitle">{{ reportDetail.title }}</div><div class="articleTagBox"><div>{{ reportDetail.createTime }}</div></div><div class="articleDetailCover"><el-image :src="reportDetail.cover" alt="" lazy class="articleDetailCoverImg" /></div><div class="articleIntroduce">{{ reportDetail.summary }}</div></div><VuePdfEmbed:source="state.source":style="scaleFun"class="vue-pdf-embed":page="state.pageNum"lazy/><div class="page-tool" v-if="!bottomVisible"><div class="page-tool-item" @click="lastPage">上一页</div><div class="page-tool-item">{{ state.pageNum }}/{{ state.numPages }}</div><div class="page-tool-item" @click="nextPage">下一页</div></div><!-- 购买提示 --><div class="bottomVisible" v-if="bottomVisible"><div class="lock-box"><img src="./img/lock.png" alt="" class="lock-box-img" /><div>购买后可继续阅读本文档</div></div><div class="buy-box"><div class="fixedBoxL"><div class="fixedBoxLT">购买全文</div><div class="fixedBoxLB">单篇需付费¥{{ apperMoney }}</div></div><div class="fixedBoxR" @click="goBuyReport">立即购买<el-icon><ArrowRightBold /></el-icon></div></div></div><!-- 弹框提示 --><el-dialog v-model="dialogVisible"><div class="dialog-box"><div class="dialog-text-box"><div class="dialog-title">购买后可继续阅读本文档</div><div class="dialog-info">单篇付费只需{{ apperMoney }}元</div></div><div class="dialog-text-box"><div class="dialog-btn" @click="goBuyReport">立即购买</div><div class="dialog-close" @click="handleClose">我再想想</div></div></div><div class="dialog-close-box" @click="handleClose"></div></el-dialog></div>
</template>
<script setup>
import {LaunchApp,detector,ua,copy,supportLink,isAndroid,isIos,inWeixin,inQQ,inWeibo,inBaidu,
} from "web-launch-app";
import { getReportDetailApi } from "@/http/api";
import { ElMessage } from "element-plus";
import { useRoute, useRouter } from "vue-router";
import { reactive, onMounted, ref, onUnmounted } from "vue";
import VuePdfEmbed from "vue-pdf-embed";
import { createLoadingTask } from "vue3-pdfjs"; // 获得总页数
import { ArrowRightBold } from "@element-plus/icons-vue";
const route = useRoute();
const pdfurl = ref("");
const state = reactive({source: pdfurl, //预览pdf文件地址pageNum: 1, //当前页面scale: 1, // 缩放比例numPages: 0, // 总页数
});
const scaleFun = reactive({transform: "scale(" + state.scale + ")",
});
// 获取上一页
function lastPage() {if (state.pageNum > 1) {state.pageNum--;}
}
// 获取下一页
function nextPage() {if (state.pageNum < state.numPages) {state.pageNum++;}
}
onMounted(() => {getReportDetail();
});
// 获取pdf文件
// let flag = ref(false); // 下载按钮的显隐
let flagCover = ref(false); // 封面显隐
let apperMoney = ref(); // 价格
let bottomVisible = ref(false);
const reportDetail = ref({});
function getReportDetail() {getReportDetailApi(route.query.id).then((res) => {if (res.code == 200) {document.title = res.data.title;if (res.data.isFree == 1 && res.data.isPurchase == 2) {// 付费 且 已解锁pdfurl.value = res.data.fileUrl;// flag.value = true;// 加载异步任务const loadingTask = createLoadingTask(state.source);// 载入pdf后获取页数loadingTask.promise.then((pdf) => {state.numPages = pdf.numPages;});} else if (res.data.isFree == 0) {// 免费pdfurl.value = res.data.fileUrl;// flag.value = true;// 加载异步任务const loadingTask = createLoadingTask(state.source);// 载入pdf后获取页数loadingTask.promise.then((pdf) => {state.numPages = pdf.numPages;});} else if (res.data.isFree == 1 && res.data.isPurchase == 1) {// 付费 且 未解锁// 展示封面图 且 立即购买reportDetail.value = res.data;// flag.value = false;if (route.query.type == "ios") {apperMoney.value = res.data.appearIosAmount;} else {// 安卓现价apperMoney.value = res.data.appearAmount;}bottomVisible.value = true;flagCover.value = true;timer = setInterval(() => {dialogVisible.value = true;}, 2000);}} else {ElMessage({message: res.msg,type: "error",plain: true,});}});
}// 弹框
const dialogVisible = ref(false);
let timer;
function handleClose() {dialogVisible.value = false;clearInterval(timer);
}
onUnmounted(() => {clearInterval(timer);
});// 立即购买
function goBuyReport() {if (isAndroid) {androidCscFinanceNews.clickBuyReport(Number(route.query.id));} else if (isIos) {window.webkit.messageHandlers.clickBuyReport.postMessage([Number(route.query.id)]);}
}
</script>
<style>
.vuePdfEmbed {flex: 1;display: flex;height: 100%;flex-direction: column;
}
.vuePdfEmbed {flex: 1;display: flex;height: 100%;flex-direction: column;
}
.vuePdfEmbed {.page-tool {position: fixed;bottom: 10px;left: 50%;transform: translateX(-50%);padding-left: 15px;padding-right: 15px;display: flex;align-items: center;background: rgb(66, 66, 66);color: white;border-radius: 19px;z-index: 100;cursor: pointer;width: 320px;align-items: center;margin: auto;justify-content: space-around;}.page-tool-item {padding: 8px 15px;padding-left: 10px;cursor: pointer;}
}.el-dialog {position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);margin: 0;width: 270px;height: 270px;background-image: url("./img/dialog.png");background-size: contain;background-color: transparent;box-shadow: none;
}.el-dialog__headerbtn {display: none;
}.dialog-box {position: absolute;left: 50%;bottom: 0;transform: translateX(-50%);width: 100%;height: 60%;display: flex;justify-content: space-around;flex-direction: column;align-items: center;
}.dialog-text-box {display: flex;flex-direction: column;align-items: center;
}
.dialog-title {font-weight: 500;font-size: 20px;color: #8b2507;line-height: 28px;
}.dialog-info {font-weight: 400;font-size: 16px;color: #ad705e;line-height: 23px;
}.dialog-btn {width: 154px;height: 47px;background: linear-gradient(360deg, #ff330a 0%, #fc4707 100%);box-shadow: 0px 2px 0px 0px #ffa073, inset 1px 5px 9px 0px rgba(255, 255, 255, 0.67);font-weight: 500;font-size: 17px;color: #ffffff;line-height: 47px;text-align: center;border-radius: 80px;
}.dialog-close {font-weight: 400;font-size: 12px;color: rgba(0, 0, 0, 0.4);line-height: 40px;
}.dialog-close-box {position: absolute;left: 50%;bottom: -60px;transform: translateX(-50%);width: 36px;height: 36px;background-image: url("./img/close.png");background-size: cover;
}.lock-box {display: flex;justify-content: center;align-items: center;height: 178px;background: linear-gradient(180deg, rgba(253, 250, 243, 0.97) 0%, #fef2e6 100%);border-radius: 4px 4px 4px 4px;text-align: center;line-height: 178px;font-weight: 400;font-size: 14px;color: #784122;
}.lock-box-img {display: block;width: 13px;height: 16px;margin-right: 9px;
}.buy-box {display: flex;align-items: center;justify-content: space-between;width: 100%;height: 60px;background-image: url("./img/bottom.png");background-size: cover;margin-top: -12px;padding: 0 30px;
}.fixedBoxL {padding-top: 10px;
}
.fixedBoxLT {font-size: 14px;line-height: 20px;color: rgba(255, 255, 255, 0.9);font-weight: 400;
}.fixedBoxLB {font-size: 10px;line-height: 12px;color: rgba(255, 255, 255, 0.6);font-weight: 400;
}.fixedBoxR {display: flex;align-items: center;font-size: 16px;line-height: 20px;color: rgba(255, 255, 255, 0.9);font-weight: 500;
}.bottomVisible {position: fixed;width: 100%;bottom: 0;z-index: 2;
}
.articleTitle {font-size: 24px;color: rgba(0, 0, 0, 0.9);line-height: 32px;font-weight: 500;
}.articleTagBox {display: flex;margin-top: 12px;margin-bottom: 20px;font-size: 12px;line-height: 20px;color: rgba(106, 106, 106, 1);
}.articleDetailCover {margin-bottom: 12px;
}.el-image__inner {border-radius: 4px;
}.articleDetailCoverImg {display: block;width: 100%;border-radius: 4px;
}.articleIntroduce {font-weight: 400;font-size: 12px;color: #6b6b6b;line-height: 22px;background: #f6f6f6;border-radius: 4px 4px 4px 4px;padding: 12px;margin-bottom: 12px;
}.vue-pdf-embed__page canvas {width: 100% !important;
}@media screen and (min-width: 500px) {.bottomVisible {position: relative;}
}
</style>

重点代码：