微信小程序之后台交互-个人中心

一.小程序登录微信登录接口演示

导入项目

登录信息

二.小程序授权登录理论与登录代码演示

图解

编辑

后端代码

前端代码

前端代码如下所示

代码案例演示

个人中心

后端代码如下所示

测试结果如下

一.小程序登录微信登录接口演示

导入项目

选择此项目导入

登录信息

如使用false的话它不会弹出确认登录框，所有不介意使用这个

测试结果

如使用true则会跳出确认登录

测试结果

二.小程序授权登录理论与登录代码演示

微信小程序的授权登录过程通常包括以下几个步骤：

小程序初始化：在小程序初始化的时候，可以调用 wx.login 接口获取临时登录凭证 code。这个 code 的有效期很短，通常只有几分钟，所以需要在获取到 code 后尽快使用。

将 code 发送到开发者服务器：小程序前端通过网络请求将获取到的 code 发送到开发者服务器。

开发者服务器获取 session_key 和 openid：开发者服务器收到 code 后，可以将其发送到微信服务器的登录凭证校验接口，换取 session_key 和 openid。session_key 是会话密钥，用于加密数据传输，openid 是用户在当前小程序的唯一标识。

校验登录状态：开发者服务器使用获取到的 session_key 和 openid 创建一个用户登录态，同时生成一个自定义的登录态标识，例如 token，并将这个标识返回给小程序前端。

小程序前端存储登录态：小程序前端收到开发者服务器返回的登录态标识后，可以将它存储在本地，一般存储在缓存中。

后续请求携带登录态：小程序前端在后续的网络请求中，可以在请求的 header 中携带这个登录态标识，以表明当前请求是一个已登录用户发起的。

图解

后端代码

导入后端登录代码

前端代码

导入前端登录代码

前端代码如下所示

代码案例演示

调用接口地址

api.js

// 以下是业务服务器API地址
 // 本机开发API地址
var WxApiRoot = 'http://localhost:8080/oapro/wx/';
// 测试环境部署api地址
// var WxApiRoot = 'http://192.168.191.1:8080/oapro/wx/';
// 线上平台api地址
//var WxApiRoot = 'https://www.oa-mini.com/demo/wx/';

module.exports = {
  IndexUrl: WxApiRoot + 'home/index', //首页数据接口
  SwiperImgs: WxApiRoot+'swiperImgs',
  MettingInfos: WxApiRoot+'meeting/list',
  AuthLoginByWeixin: WxApiRoot + 'auth/login_by_weixin', //微信登录
  UserIndex: WxApiRoot + 'user/index', //个人页面用户相关信息
  AuthLogout: WxApiRoot + 'auth/logout', //账号登出
  AuthBindPhone: WxApiRoot + 'auth/bindPhone' //绑定微信手机号
};

个人中心

编写index.wxml

<view class="page-container">
    <view class="user-info-container">
        <view class="user-info"  bindtap="goLogin">
            <image class="user-img" mode="scaleToFill" src="{{userInfo.avatarUrl}}" />
            <text class="user-info-name">{{userInfo.nickName}}</text>
        </view>
        <image class="user-update" src="/static/tabBar/component.png" bindtap='goPages' data-url='/pages/ucenter/user/user'/>
    </view>
 
    <view class="boundary" />
    <view class="cells-container">
        <view class="cell-wrap">
            <image class="cell-icon" src="/static/tabBar/sdk.png" />
            <text class="cell-text">我主持的会议</text>
            <view class="cell-right">
                <view class="cell-list-num">{{metting_pubs}}</view>
                <view class="cell-arrow"></view>
            </view>
        </view>
        <view class="cell-wrap">
            <image class="cell-icon" src="/static/tabBar/sdk.png" />
            <text class="cell-text">我参与的会议</text>
            <view class="cell-right">
                <view class="cell-list-num">{{metting_joins}}</view>
                <view class="cell-arrow"></view>
            </view>
        </view>
    </view>
    <view class="boundary" />
    <view class="cells-container">
        <view class="cell-wrap">
            <image class="cell-icon" src="/static/tabBar/sdk.png" />
            <text class="cell-text">我发布的投票</text>
            <view class="cell-right">
                <view class="cell-list-num">1</view>
                <view class="cell-arrow"></view>
            </view>
        </view>
        <view class="cell-wrap">
            <image class="cell-icon" src="/static/tabBar/sdk.png" />
            <text class="cell-text">我参与的投票</text>
            <view class="cell-right">
                <view class="cell-list-num">10</view>
                <view class="cell-arrow"></view>
            </view>
        </view>
    </view>
    <view class="boundary" />
    <view class="cells-container">
        <view class="cell-wrap">
            <image class="cell-icon" src="/static/tabBar/template.png" />
            <text class="cell-text">消息</text>
            <view class="cell-right">
                <view class="cell-list-num"></view>
                <view class="cell-arrow"></view>
            </view>
        </view>
        <view class="cell-wrap">
            <image class="cell-icon" src="/static/tabBar/component.png" />
            <text class="cell-text">设置</text>
            <view class="cell-right">
                <view class="cell-list-num"></view>
                <view class="cell-arrow"></view>
            </view>
        </view>
    </view>
</view>

编写index.js

// pages/ucenter/index/index.js
var util = require('../../../utils/util.js');
var api = require('../../../config/api.js');
const app = getApp();
Page({
 
    /**
     * 页面的初始数据
     */
    data: {
        userInfo: {
            nickName: '点击登录',
            avatarUrl: '/static/images/avatar.png'
        },
        hasLogin: false,
        metting_pubs: '',
        metting_joins: ''
    },
 
    /**
     * 生命周期函数--监听页面加载
     */
    onLoad(options) {
 
    },
 
 
    /**
     * 生命周期函数--监听页面显示
     */
    onShow() {
        this.getUserInfo();
    },
    getUserInfo() {
      // console.log('ucenter.index.app.globalData.hasLogin='+app.globalData.hasLogin)
        //获取用户的登录信息
        if (app.globalData.hasLogin) {
            let userInfo = wx.getStorageSync('userInfo');
            this.setData({
                userInfo: userInfo,
                hasLogin: true
            });
            //查询个人统计信息
            util.request(api.UserIndex).then(res => {
                if (res.errno === 0) {
                    this.setData({
                        metting_pubs: res.data.metting_pubs,
                        metting_joins: res.data.metting_joins
                    });
                }
            });
        }
    },
    goLogin() {
        if (!this.data.hasLogin) {
            wx.navigateTo({
                url: "/pages/auth/login/login"
            });
        }
    },
    /**
     * 页面跳转
     */
    goPages: function (e) {
        if (this.data.hasLogin) {
            wx.navigateTo({
                url: e.currentTarget.dataset.url
            });
        } else {
            wx.navigateTo({
                url: "/pages/auth/login/login"
            });
        };
    }
 
})

创建一个用户登入后的设置页面为 : user。

user.js

var util = require('../../../utils/util.js');
var api = require('../../../config/api.js');
var user = require('../../../utils/user.js');
var app = getApp();
Page({
 
  /**
   * 页面的初始数据
   */
  data: {
    userInfo: {},
    hasLogin: false,
    userSharedUrl: ''
  },
 
  /**
      * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
 
  },
  onShow: function () {
    let that = this;
    //获取用户的登录信息
    let userInfo = wx.getStorageSync('userInfo');
    this.setData({
      userInfo: userInfo,
      hasLogin: true
    });
 
  },
  getPhoneNumber: function (e) {
    let that = this;
    if (e.detail.errMsg !== "getPhoneNumber:ok") {
      // 拒绝授权
      return;
    }
 
    if (!this.data.hasLogin) {
      wx.showToast({
        title: '绑定失败：请先登录',
        icon: 'none',
        duration: 2000
      });
      return;
    }
 
    util.request(api.AuthBindPhone, {
      iv: e.detail.iv,
      encryptedData: e.detail.encryptedData
    }, 'POST').then(function (res) {
      if (res.errno === 0) {
        let userInfo = wx.getStorageSync('userInfo');
        userInfo.phone = res.data.phone;//设置手机号码
        wx.setStorageSync('userInfo', userInfo);
        that.setData({
          userInfo: userInfo,
          hasLogin: true
        });
        wx.showToast({
          title: '绑定手机号码成功',
          icon: 'success',
          duration: 2000
        });
      }
    });
  },
  exitLogin: function () {
    wx.showModal({
      title: '',
      confirmColor: '#b4282d',
      content: '退出登录？',
      success: function (res) {
        if (!res.confirm) {
          return;
        }
 
        util.request(api.AuthLogout, {}, 'POST');
        app.globalData.hasLogin = false;
        wx.removeStorageSync('token');
        wx.removeStorageSync('userInfo');
        wx.reLaunch({
          url: '/pages/index/index'
        });
      }
    })
  }
})

编写user.wxml

<!--pages/ucenter/user/user.wxml-->
<form bindsubmit="formSubmit">
    <view class='personal-data'>
        <view class='list'>
            <view class='item acea-row row-between-wrapper'>
                <view>头像</view>
                <view class='pictrue'>
                    <image src='{{userInfo.avatarUrl}}'></image>
                </view>
            </view>
            <view class='item acea-row row-between-wrapper'>
                <view>名字</view>
                <view class='input'><input type='text' disabled='true' name='nickname' value='{{userInfo.nickName}}'></input></view>
            </view>
            <view class='item acea-row row-between-wrapper'>
                <view>手机号码</view>
                <button name='phone' class='phone' value='{{userInfo.phone}}' wx:if="{{!userInfo.phone}}" bindgetphonenumber="getPhoneNumber" hover-class='none' open-type='getPhoneNumber'>
                    点击获取
                </button>
                <view class='input acea-row row-between-wrapper' wx:else>
                    <input type='text' disabled='true' name='phone' value='{{userInfo.phone}}' class='id'></input>
                    <text class='iconfont icon-suozi'></text>
                </view>
            </view>
 
            <view class='item acea-row row-between-wrapper'>
                <view>ID号</view>
                <view class='input acea-row row-between-wrapper'>
                    <input type='text' value='1000{{userInfo.userId}}' disabled='true' class='id'></input>
                    <text class='iconfont icon-suozi'></text>
                </view>
            </view>
        </view>
        <button class='modifyBnt' bindtap="exitLogin">退 出</button>
    </view>
</form>

编写user.wxss

@import '/static/font/iconfont.wxss';
.personal-data .list {
    margin-top: 15rpx;
    background-color: #fff;
}
 
.personal-data .list .item {
    padding: 30rpx 30rpx 30rpx 0;
    border-bottom: 1rpx solid #f2f2f2;
    margin-left: 30rpx;
    font-size: 32rpx;
    color: #282828;
}
 
.personal-data .list .item .phone {
    background-color: #85c43f;
    width: 160rpx;
    height: 56rpx;
    font-size: 24rpx;
    color: #fff;
    line-height: 56rpx;
    border-radius: 32rpx
}
 
.personal-data .list .item .pictrue {
    width: 88rpx;
    height: 88rpx;
}
 
.personal-data .list .item .pictrue image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}
 
.personal-data .list .item .input {
    width: 415rpx;
    text-align: right;
    color: #868686;
}
 
.personal-data .list .item .input .id {
    width: 365rpx;
}
 
.personal-data .list .item .input .iconfont {
    font-size: 35rpx;
}
 
.personal-data .modifyBnt {
    /* background-color: #85c43f; */
    /* background: linear-gradient(to left right, #85c43f, #fefefd); */
    background: radial-gradient(circle at 50%,#85c43f,#CDDC39);
    font-size: 32rpx;
    color: #fff;
    width: 690rpx;
    height: 90rpx;
    border-radius: 50rpx;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 90rpx;
    margin: 76rpx auto 0 auto;
}
 
 
.acea-row{display:flex;flex-wrap:wrap;}
.acea-row.row-top{align-items:flex-start;}
.acea-row.row-middle{align-items:center;}
.acea-row.row-bottom{align-items:flex-end;}
.acea-row.row-left{justify-content:flex-start;}
.acea-row.row-center{justify-content:center;}
.acea-row.row-right{justify-content:flex-end;}
.acea-row.row-between{justify-content:space-between;}
.acea-row.row-around{justify-content:space-around;}
.acea-row.row-column{flex-direction:column;}
.acea-row.row-column-between{flex-direction:column;justify-content:space-between;}
.acea-row.row-column-around{flex-direction:column;justify-content:space-around;}
.acea-row.row-center-wrapper{align-items:center;justify-content:center;}
.acea-row.row-between-wrapper{align-items:center;justify-content:space-between;}
view, image, text, navigator {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

后端代码如下所示

在后台编写的控制器，来进行出来前端的请求及数据处理并且反馈带前端

WxAuthController :

package com.zking.ssm.wxcontroller;
 
/**
 * @Autho donkee
 * @Since 2022/6/27
 */
 
import cn.binarywang.wx.miniapp.bean.WxMaPhoneNumberInfo;
import com.alibaba.fastjson.JSONObject;
import com.zking.ssm.annotation.LoginUser;
import com.zking.ssm.model.UserInfo;
import com.zking.ssm.model.WxLoginInfo;
import com.zking.ssm.model.WxUser;
import com.zking.ssm.service.UserToken;
import com.zking.ssm.service.UserTokenManager;
import com.zking.ssm.service.WxUserService;
import com.zking.ssm.util.JacksonUtil;
import com.zking.ssm.util.ResponseUtil;
import com.zking.ssm.util.UserTypeEnum;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
 
import cn.binarywang.wx.miniapp.api.WxMaService;
import cn.binarywang.wx.miniapp.bean.WxMaJscode2SessionResult;
import javax.servlet.http.HttpServletRequest;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
 
/**
 * 鉴权服务
 */
@Slf4j
@RestController
@RequestMapping("/wx/auth")
public class WxAuthController {
    @Autowired
    private WxMaService wxService;
    @Autowired
    private WxUserService userService;
    /**
     * 微信登录
     *
     * @param wxLoginInfo
     *            请求内容，{ code: xxx, userInfo: xxx }
     * @param request
     *            请求对象
     * @return 登录结果
     */
    @PostMapping("login_by_weixin")
    public Object loginByWeixin(@RequestBody WxLoginInfo wxLoginInfo, HttpServletRequest request) {
 
        //客户端需携带code与userInfo信息
        String code = wxLoginInfo.getCode();
        UserInfo userInfo = wxLoginInfo.getUserInfo();
        if (code == null || userInfo == null) {
            return ResponseUtil.badArgument();
        }
        //调用微信sdk获取openId及sessionKey
        String sessionKey = null;
        String openId = null;
        try {
            long beginTime = System.currentTimeMillis();
            //
            WxMaJscode2SessionResult result = this.wxService.getUserService().getSessionInfo(code);
//            Thread.sleep(6000);
            long endTime = System.currentTimeMillis();
            log.info("响应时间:{}",(endTime-beginTime));
            sessionKey = result.getSessionKey();//session id
            openId = result.getOpenid();//用户唯一标识 OpenID
        } catch (Exception e) {
            e.printStackTrace();
        }
 
        if (sessionKey == null || openId == null) {
            log.error("微信登录,调用官方接口失败：{}", code);
            return ResponseUtil.fail();
        }else{
            log.info("openId={},sessionKey={}",openId,sessionKey);
        }
        //根据openId查询wx_user表
        //如果不存在，初始化wx_user,并保存到数据库中
        //如果存在，更新最后登录时间
        WxUser user = userService.queryByOid(openId);
 
        if (user == null) {
            user = new WxUser();
            user.setUsername(openId);
            user.setPassword(openId);
            user.setWeixinOpenid(openId);
            user.setAvatar(userInfo.getAvatarUrl());
            user.setNickname(userInfo.getNickName());
            user.setGender(userInfo.getGender());
            user.setUserLevel((byte) 0);
            user.setStatus((byte) 0);
            user.setLastLoginTime(new Date());
            user.setLastLoginIp(IpUtil.client(request));
            user.setShareUserId(1);
 
            userService.add(user);
 
        } else {
            user.setLastLoginTime(new Date());
            user.setLastLoginIp(IpUtil.client(request));
            if (userService.updateById(user) == 0) {
                log.error("修改失败：{}", user);
                return ResponseUtil.updatedDataFailed();
            }
        }
        // token
        UserToken userToken = null;
        try {
            userToken = UserTokenManager.generateToken(user.getId());
        } catch (Exception e) {
            log.error("微信登录失败,生成token失败：{}", user.getId());
            e.printStackTrace();
            return ResponseUtil.fail();
        }
        userToken.setSessionKey(sessionKey);
        log.info("SessionKey={}",UserTokenManager.getSessionKey(user.getId()));
        Map<Object, Object> result = new HashMap<Object, Object>();
        result.put("token", userToken.getToken());
        result.put("tokenExpire", userToken.getExpireTime().toString());
        userInfo.setUserId(user.getId());
        if (!StringUtils.isEmpty(user.getMobile())) {// 手机号存在则设置
            userInfo.setPhone(user.getMobile());
        }
        try {
            DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
            String registerDate = df.format(user.getAddTime() != null ? user.getAddTime() : new Date());
            userInfo.setRegisterDate(registerDate);
            userInfo.setStatus(user.getStatus());
            userInfo.setUserLevel(user.getUserLevel());// 用户层级
            userInfo.setUserLevelDesc(UserTypeEnum.getInstance(user.getUserLevel()).getDesc());// 用户层级描述
        } catch (Exception e) {
            log.error("微信登录：设置用户指定信息出错："+e.getMessage());
            e.printStackTrace();
        }
        result.put("userInfo", userInfo);
 
 
        log.info("【请求结束】微信登录,响应结果:{}", JSONObject.toJSONString(result));
 
        return ResponseUtil.ok(result);
    }
    /**
     * 绑定手机号码
     *
     * @param userId
     * @param body
     * @return
     */
    @PostMapping("bindPhone")
    public Object bindPhone(@LoginUser Integer userId, @RequestBody String body) {
        log.info("【请求开始】绑定手机号码,请求参数，body:{}", body);
 
        String sessionKey = UserTokenManager.getSessionKey(userId);
        String encryptedData = JacksonUtil.parseString(body, "encryptedData");
        String iv = JacksonUtil.parseString(body, "iv");
        WxMaPhoneNumberInfo phoneNumberInfo = null;
        try {
            phoneNumberInfo = this.wxService.getUserService().getPhoneNoInfo(sessionKey, encryptedData, iv);
        } catch (Exception e) {
            log.error("绑定手机号码失败,获取微信绑定的手机号码出错：{}", body);
            e.printStackTrace();
            return ResponseUtil.fail();
        }
        String phone = phoneNumberInfo.getPhoneNumber();
        WxUser user = userService.selectByPrimaryKey(userId);
        user.setMobile(phone);
        if (userService.updateById(user) == 0) {
            log.error("绑定手机号码,更新用户信息出错,id：{}", user.getId());
            return ResponseUtil.updatedDataFailed();
        }
        Map<Object, Object> data = new HashMap<Object, Object>();
        data.put("phone", phone);
 
        log.info("【请求结束】绑定手机号码,响应结果：{}", JSONObject.toJSONString(data));
        return ResponseUtil.ok(data);
    }
    /**
     * 注销登录
     */
    @PostMapping("logout")
    public Object logout(@LoginUser Integer userId) {
        log.info("【请求开始】注销登录,请求参数，userId:{}", userId);
        if (userId == null) {
            return ResponseUtil.unlogin();
        }
        try {
            UserTokenManager.removeToken(userId);
        } catch (Exception e) {
            log.error("注销登录出错：userId:{}", userId);
            e.printStackTrace();
            return ResponseUtil.fail();
        }
 
        log.info("【请求结束】注销登录成功!");
        return ResponseUtil.ok();
    }
}

在application.yml文件中编写密钥