下载文件

src/app.json

@@ -12,7 +12,8 @@
     "pages/tabBar2/main",
     "pages/tabBar3/main",
     "pages/tabBar4/main",
-    "pages/changeAdr/main"
+    "pages/changeAdr/main",
+    "pages/downFile/main"
   ],
   "usingComponents": {},
   "window": {

src/pages/downFile/index.vue

+<template>
+    <div class="container">
+        <van-loading style="margin-top:20%" v-if="status" size="24px" vertical>下载中...</van-loading>
+    </div>
+</template>
+
+<script>
+    export default {
+        data(){
+            return{
+                status : true
+            }
+            
+        },
+        created(){
+            // this.download()
+        },
+        methods : {
+            download(){
+                let down = wx.downloadFile({
+                    url : 'http://bkzs.hfut.edu.cn/generic/web/viewer.html?file=/userfiles/1/files/files/2019/12/%E5%90%88%E8%82%A5%E5%B7%A5%E4%B8%9A%E5%A4%A7%E5%AD%A62019%E5%B9%B4%E6%8A%A5%E8%80%83%E6%8C%87%E5%8D%971.pdf',
+                    success : (data) => {
+                        console.log('下载成功',data)
+                        console.log(data.tempFilePath)
+                        if(data.statusCode == 200){
+                            wx.openDocument({
+                                filePath: data.tempFilePath,
+                                showMenu:true,
+                                fileType : 'pdf',
+                                success: function (res) {
+                                    console.log('打开文档成功',res)
+                                }
+                            })
+                        }
+                    },
+                    fail : (err) => {
+                        console.log('下载失败',err)
+                    }
+                })
+
+                
+                down.onProgressUpdate((res) => {
+                    console.log(res,'res')
+                    if(res.progress == 100){
+                        console.log('下载成功')
+                        this.status = false
+                    }
+                })
+            }
+        }
+    }
+</script>
+
+<style scoped lang="scss">
+
+</style>
\ No newline at end of file

src/pages/downFile/main.js

+import Vue from 'vue'
+import App from './index'
+
+const app = new Vue(App)
+app.$mount()
\ No newline at end of file

src/pages/downFile/main.json

+{
+    "navigationBarTitleText":"下载",
+    "usingComponents": {
+    "van-loading": "/static/vant/loading/index"
+    }
+}
\ No newline at end of file