项目初始化

pages/index/login.vue

@@ -0,0 +1,39 @@
+<!-- 微信公众号的登录回调页 -->
+<template>
+  <!-- 空登陆页 -->
+  <view />
+</template>
+
+<script setup>
+  import sheep from '@/sheep';
+  import { onLoad } from '@dcloudio/uni-app';
+
+  onLoad(async (options) => {
+    // #ifdef H5
+    // 将 search 参数赋值到 options 中，方便下面解析
+    new URLSearchParams(location.search).forEach((value, key) => {
+      options[key] = value;
+    });
+    // 执行登录 or 绑定，注意需要 await 绑定
+    const event = options.event;
+    const code = options.code;
+    const state = options.state;
+    if (event === 'login') { // 场景一：登录
+      await sheep.$platform.useProvider().login(code, state);
+    } else if (event === 'bind') { // 场景二：绑定
+      await sheep.$platform.useProvider().bind(code, state);
+    }
+
+    // 检测 H5 登录回调
+    let returnUrl = uni.getStorageSync('returnUrl');
+    if (returnUrl) {
+      uni.removeStorage({key:'returnUrl'});
+      location.replace(returnUrl);
+    } else {
+      uni.switchTab({
+        url: '/',
+      });
+    }
+    // #endif
+  });
+</script>