uniapp手机一键登录，微信授权登陆

之前前端可以通过微信的接口获取openid，现在不允许了，所以把code传给后端后端反数据给我们

<template>
	<view class="content yd-center">
		<!-- 手机登录 -->
		<view class="phonebox">
			<view class="u-demo-block__content" style=" width: 91vw;">
				<u-input maxlength="11" placeholder="请输入手机号码" type="number" clearable color="#000" v-model="phone"
					@blur="phoneblur" border="bottom">
					<u--text text="手机号:" color="#6b6b6b" slot="prefix" size="18" margin="0 3px 0 0"></u--text>
					<template slot="suffix">
						<button class="Localnumber" type="default" open-type="getPhoneNumber"
							@getphonenumber.stop="GetPhoneNumber">获取手机号</button>
					</template>
				</u-input>
			</view>
			<view class="u-demo-block__content" style="margin-top: 15px; width: 91vw;">
				<u-input maxlength="6" type="number" placeholder="请输入验证码" color="#000" v-model="Scode" border="bottom">
					<u--text text="验证码:" color="#6b6b6b" slot="prefix" size="18" margin="0 3px 0 0"></u--text>
					<template slot="suffix">
						<u-code ref="uCode" @change="codeChange" seconds="60" changeText="x秒重新获取"></u-code>
						<view class="Codebox" @click="getCode">
							{{tips}}
						</view>
						<!-- <u-button @tap="getCode" :text="tips" type="success" size="mini"></u-button> -->
					</template>
				</u-input>
			</view>
		</view>
		<!-- 微信登录 -->
		<view class="loginbtn yd-center" @click="phonelogin">登录</view>
		<view class="weichatloginbtn yd-center" @click="weichatlogin">一键授权登录</view>
		<!-- <view class="sysbox">切换登录方式</view>
		<view class="iconfont icon-ydkjweixin" @click="weichatlogin"></view> -->
	</view>
</template>

<script>
	import {
		login,
		loginPhone,
		sendCode,
		encrypPhone,
		getOpenId
	} from '@/api/login.js'

	import {
		HTTP_REQUEST_URL
	} from '@/common/config.js';
	export default {
		data() {
			return {
				tips: '', //验证码提示文字
				phone: '', //手机号码
				Scode: '', //验证码
				code: '', //验证码
				sessionKey: '', //秘钥
				iv: '', //本机号码秘钥
				encryptedData: '', //本机号码秘钥
			};
		},
		onLoad() {
			// 获取解密本机手机号码的信息
			this.updateSessionKey()
		},
		methods: {
			// 获取本机手机号码
			GetPhoneNumber(e) {
				console.log(e)
				//需要检查sessionkey状态
				uni.checkSession({
					success: (_res) => {
						if (e.detail.errMsg == 'getPhoneNumber:user deny') { //用户点击拒绝
							uni.showToast({
								title: "您已拒绝！授权失败",
								icon: "none"
							})
						} else { //允许授权执行跳转 
							this.iv = e.detail.iv;
							this.encryptedData = e.detail.encryptedData;
							this.getencrypPhone()
						}
					},
					fail: (_res) => {
						console.log(_res)
						uni.hideLoading()
						this.updateSessionKey()
						uni.showModal({
							title: '提示',
							content: '您的登录失效，请重新授权',
							showCancel: false
						})
					}
				})
			},
			getencrypPhone() {
				let data = {
					iv: this.iv,
					encrypted: this.encryptedData,
					sessionKey: this.sessionKey,
				}
				//传给后端解密手机号
				encrypPhone(data).then(res => {
						let data = JSON.parse(res.data)
						this.phone = data.phoneNumber
					})
					.catch(res => {
						uni.hideLoading();
						uni.$u.toast(res.msg);
					})
			},
			// 获取SessionKey
			updateSessionKey() {
				this.getLoginCode() //获取微信登录js_code
				// console.log('code=',jsCode)

			},
			// 获取code
			getLoginCode() {
				uni.login({
					provider: 'weixin',
					success: async (res) => {
						this.code = res.code;
						// uni.setStorageSync('code', res.code)
						this.jsCode2OpenId() //openid和session数据
					}
				})
			},
			jsCode2OpenId() {
				getOpenId({
					code: this.code
				}).then(res => {
					let info = JSON.parse(res.data)
					this.openid = info.openid;
					this.sessionKey = info.session_key
				})
			},
			// 电话号码验证登陆
			phonelogin() {
				if (this.phone == '') {
					uni.showToast({
						title: '请填写电话号码',
						icon: 'error',
						duration: 2000
					});
					return
				} else if (this.Scode == '') {
					uni.showToast({
						title: '请输入验证码',
						icon: 'error',
						duration: 2000
					});
					return
				}
				loginPhone({
					phone: this.phone,
					code: this.Scode
				}).then(res => {
					if (res.code == 0) {
						uni.setStorageSync('token', res.data.token)
						uni.setStorageSync('phone', res.data.loginName)
						uni.reLaunch({
							url: '/pages/index/index'
						})
					}
				})
			},
			// 微信登陆
			weichatlogin() {
				let that = this;
				let token = uni.getStorageSync('token');
				if (token) {
					uni.redirectTo({
						url: '/pages/index/index'
					})
				} else {
					uni.getUserProfile({
						lang: 'zh_CN',
						desc: '获取你的昵称、头像、地区及性别',
						success: (res) => {
							uni.setStorageSync('userInfo', res.userInfo)
							//先获取code，再授权登陆
							uni.getProvider({
								service: 'oauth',
								success: function(res) {
									console.log(res.provider);
									//支持微信、qq和微博等
									if (~res.provider.indexOf('weixin')) {
										login({
											openId: that
												.openid
										}).then(
											res => {
												if (res.code == 0) {
													uni.setStorageSync('token', res.data.token)
													uni.reLaunch({
														url: '/pages/index/index'
													})
												}
											});
									}
								}
							});
						}
					});
				}
			},
			// 电话号码输入失去焦点事件
			phoneblur(e) {
				let reg = /^[1][3,4,5,7,8][0-9]{9}$/
				if (reg.test(Number(e)) == false) {
					uni.showToast({
						title: '请填写正确的电话号码',
						icon: 'error',
						duration: 2000
					});
					this.phone = ''
				}
			},
			// 验证码倒数事件文字切换
			codeChange(text) {
				this.tips = text;
			},
			//监听验证码按钮状态事件
			getCode() {
				if (this.phone == '') {
					uni.showToast({
						title: '请填写电话号码',
						icon: 'error',
						duration: 2000
					});
					return
				}
				if (this.$refs.uCode.canGetCode) {
					// 模拟向后端请求验证码
					uni.showLoading({
						title: '正在获取验证码'
					})
					// uni.showToast({
					// 	title: '正在获取验证码',
					// 	icon: 'loading',
					// 	duration: 30000 // 当然这个时间可根据实用场景进行相关设置
					// })
					setTimeout(() => {
						sendCode({
								phone: this.phone
							}).then(res => {
								uni.hideLoading();
								// uni.hideToast()
								console.log(1, res)
								// 这里此提示会被this.start()方法中的提示覆盖
								uni.$u.toast('验证码已发送');
								// 通知验证码组件内部开始倒计时
								this.$refs.uCode.start();
							})
							.catch(res => {
								uni.hideLoading();
								uni.$u.toast(res.msg);
							})
							.finally(res => {
								uni.hideLoading();
								uni.$u.toast(res.msg);
							})
					}, 2000);
				} else {
					uni.$u.toast('倒计时结束后再发送');
				}
			},

			change(e) {
				console.log('change', e);
			}
		}
	};
</script>

<style lang="scss" socped>
	button {
		margin: 0;
		background-color: #ffffff;
		border: none;
	}

	.content {
		margin-bottom: 140rpx;
		width: 100vw;
		height: 100vh;
		background-color: #ffffff;
	}

	.phonebox {
		margin-bottom: 124rpx;
		margin-top: -606rpx;
	}

	.loginbtn {
		width: 92vw;
		height: 86rpx;
		background-color: #0092ff;
		color: white;
		border: 2rpx solid #0092ff;
		border-radius: 10rpx;
		margin: 20rpx auto;
		font-size: 30rpx;
		letter-spacing: 10rpx;
		box-shadow: 0 0 10rpx #919191;
	}

	.weichatloginbtn {
		width: 92vw;
		height: 86rpx;
		background-color: #ffffff;
		color: #0092ff;
		border: 2rpx solid #0092ff;
		border-radius: 10rpx;
		margin: 20rpx auto;
		font-size: 30rpx;
		letter-spacing: 10rpx;
		box-shadow: 0 0 10rpx #919191;
	}

	.sysbox {
		margin: 500rpx 0 30rpx;
		color: #b5b5b5;
	}

	.icon-ydkjweixin {
		color: #5ac725;
		font-size: 83rpx;
	}
</style>

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