251 lines
5.4 KiB
Markdown
251 lines
5.4 KiB
Markdown
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# uni-app微信小程序登录
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## 第一章 前端页面
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### 1.1 简介
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前端使用uni-app
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后端springboot2.X+mybatis plus
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持久化数据库mysql8.0.16
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### 1.2 微信小程序登录步骤
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第一步：小程序通过uni.login()获取code。
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第二步：小程序通过uni.request()发送code到开发者服务器。
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第三步：开发者服务器接收小程序发送的code，并携带appid、appsecret（这两个需要到微信小程序后台查看）、code发送到微信服务器。
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第四步：微信服务器接收开发者服务器发送的appid、appsecret、code进行校验。校验通过后向开发者服务器发送session_key、openid。
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第五步：开发者服务器自己生成一个key（自定义登录状态）与openid、session_key进行关联，并存到数据库中（mysql、redis等）。
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第六步：开发者服务器返回生成key（自定义登录状态）到小程序。
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第七步：小程序存储key（自定义登录状态）到本地。
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### 1.3首页index
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```
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<template>
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<view class="content">
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<image class="logo" :src="userInfo.avatarUrl || '/static/missing-face.png'"></image>
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<view class="text-area">
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<text class="title" @click="toLogin">{{ hasLogin ? userInfo.username || '未设置昵称' : '立即登录' }}</text>
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</view>
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</view>
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</template>
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<script>
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import { mapState } from 'vuex';
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export default {
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data() {
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return {};
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},
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onLoad() {},
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computed: {
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...mapState(['hasLogin', 'userInfo'])
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},
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methods: {
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toLogin() {
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if (!this.hasLogin) {
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uni.navigateTo({
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url: '/pages/login/login'
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});
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}
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}
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}
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};
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</script>
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<style>
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.content {
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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}
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.logo {
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height: 200rpx;
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width: 200rpx;
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margin-top: 200rpx;
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margin-left: auto;
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margin-right: auto;
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margin-bottom: 50rpx;
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}
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.text-area {
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display: flex;
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justify-content: center;
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}
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.title {
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font-size: 36rpx;
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color: #8f8f94;
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}
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</style>
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```
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### 1.4 登录页面login
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```
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<template>
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<view class="container">
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<view class="left-top-sign">LOGIN</view>
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<view class="welcome">欢迎回来！</view>
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<button class="confirm-btn" open-type="getUserInfo" @getuserinfo="wxgetUserInfo" :disabled="logining">微信授权登录</button>
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</view>
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</template>
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<script>
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import { mapMutations } from 'vuex';
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export default {
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data() {
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return {
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logining: false
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};
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},
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onLoad() {},
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methods: {
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wxgetUserInfo() {
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let that = this;
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that.logining = true;
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uni.showLoading({
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title: '登录中'
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});
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uni.getUserInfo({
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provider: 'weixin',
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success: res => {
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let avatarUrl = res.userInfo.avatarUrl;
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let nickName = res.userInfo.nickName;
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console.log(avatarUrl);
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console.log(nickName);
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try {
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uni.setStorageSync();
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that.updateUserInfo();
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} catch (e) {
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//TODO handle the exception
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}
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}
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});
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uni.login({
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success(loginRes) {
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let code = loginRes.code;
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console.log(code);
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// 将用户code传给后台置换openid和session_key
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uni.request({
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url: '127.0.0.1:8080/login',
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method: 'post',
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data: {
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code : code
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},
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header: {
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'content-type': 'application/json'
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},
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success(resultRes) {
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}
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});
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}
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});
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uni.hideLoading();
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uni.navigateBack();
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}
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}
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};
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</script>
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<style lang="scss">
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.container {
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display: flex;
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overflow: hidden;
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background: #fff;
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flex-direction: column;
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justify-content: center;
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.left-top-sign {
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font-size: 120upx;
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color: $page-color-base;
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position: relative;
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left: -10upx;
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margin-top: 100upx;
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}
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.welcome {
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position: relative;
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left: 50upx;
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top: -90upx;
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font-size: 46upx;
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color: #555;
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text-shadow: 1px 0px 1px rgba(0, 0, 0, 0.3);
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}
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.confirm-btn {
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width: 630upx;
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height: 76upx;
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line-height: 76upx;
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border-radius: 50px;
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margin-top: 70upx;
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background: $uni-color-primary;
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color: #fff;
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font-size: $font-lg;
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&:after {
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border-radius: 100px;
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}
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}
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}
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</style>
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```
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## 第二章 uni-app业务逻辑开发
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### 2.1 vuex在uni-app中的使用
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### 2.2 登录功能实现
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## 第三章 数据库设计与运行
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### 3.1 vmware使用docker安装mysql
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### 3.2 user数据表建立
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配置application.yml
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```
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server:
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port: 8080
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spring:
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datasource:
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url: jdbc:mysql://192.168.253.133:3307/test?useUnicode=true&useSSL=false&characterEndcoding=utf8&serverTimezon=Asia/Shanghai
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username: root
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password: 123456
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driver-class-name: com.mysql.cj.jdbc.Driver
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```
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创建表格
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```
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CREATE TABLE `user` (
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`open_id` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT 'open_id',
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`skey` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT 'skey',
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`create_time` timestamp(0) NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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`last_visit_time` timestamp(0) NULL DEFAULT CURRENT_TIMESTAMP COMMENT '最后登录时间',
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`session_key` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT 'session_key',
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`avatar_url` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '头像',
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`nick_name` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '网名',
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PRIMARY KEY (`open_id`) USING BTREE
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) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '微信用户信息' ;
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```
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## 第四章 springboot开发后端接口
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