beta

miniprogram-example/services/auth.js

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+// auth.js - 认证相关服务
+
+import request from '../utils/request';
+
+/**
+ * 微信登录
+ * 1. 调用wx.login获取code
+ * 2. 发送code到服务端换取token和openid
+ * 3. 保存token和openid到本地存储
+ */
+export const wxLogin = () => {
+  return new Promise((resolve, reject) => {
+    wx.login({
+      success: (res) => {
+        if (res.code) {
+          // 发送code到服务端
+          request({
+            url: '/login',
+            method: 'POST',
+            data: {
+              code: res.code
+            }
+          }).then(response => {
+            // 保存token和openid
+            if (response.data && response.data.token && response.data.openid) {
+              wx.setStorageSync('token', response.data.token);
+              wx.setStorageSync('openid', response.data.openid);
+              resolve(response.data);
+            } else {
+              reject(new Error('登录失败，服务器返回数据格式错误'));
+            }
+          }).catch(err => {
+            reject(err);
+          });
+        } else {
+          reject(new Error('登录失败，获取code失败: ' + res.errMsg));
+        }
+      },
+      fail: (err) => {
+        reject(new Error('微信登录失败: ' + err.errMsg));
+      }
+    });
+  });
+};
+
+/**
+ * 检查登录状态
+ * 1. 检查本地是否有token和openid
+ * 2. 如果有，验证token是否有效
+ * 3. 如果无效，清除本地存储并返回false
+ */
+export const checkLoginStatus = () => {
+  return new Promise((resolve, reject) => {
+    const token = wx.getStorageSync('token');
+    const openid = wx.getStorageSync('openid');
+    
+    if (!token || !openid) {
+      resolve(false);
+      return;
+    }
+    
+    // 验证token有效性
+    request({
+      url: '/verify-token',
+      method: 'POST'
+    }).then(() => {
+      resolve(true);
+    }).catch(() => {
+      // token无效，清除本地存储
+      wx.removeStorageSync('token');
+      wx.removeStorageSync('openid');
+      resolve(false);
+    });
+  });
+};
+
+/**
+ * 退出登录
+ */
+export const logout = () => {
+  wx.removeStorageSync('token');
+  wx.removeStorageSync('openid');
+  return Promise.resolve();
+};