uniapp怎么申请微信登录

<button  class="confirm-btn" @click="weixinLo">微信登录</button>

weixinLo() {
				let that = this;
				uni.login({
					provider: 'weixin',
					success: function(loginRes) {
						that.$queue.showLoading('正在登录中...');
						console.error(loginRes.authResult);
//获取登录的token
that.$queue.setData('weixinToken',loginRes.authResult.access_token);
//获取登录的unionid 这个还是在开放平台做了 公众号 小程序 微信登录app关联才会有
						that.$queue.setData('unionid', loginRes.authResult.unionid);
//获取openid
						that.$queue.setData('weixinOpenid', loginRes.authResult.openid);
//这里吧数据全部提交给后台核验，有没有注册 注册了 后台代码会请求接口String s = HttpClient.doGet("https://api.weixin.qq.com/sns/userinfo?access_token=" + loginInfo.getToken() + "&openid=" + loginInfo.getOpenid()); 获取头像和昵称
						that.$Request
							.postJson('/user/loginApp', {
								token: loginRes.authResult.access_token,
								unionid: loginRes.authResult.unionid,
								openid: loginRes.authResult.openid
							})
							.then(res => {
								if (res.status === 0) {

									//绑定手机号直接登录
									that.getUserInfo(res.data.userId, res.data.uuid);
								} else {
									//没有绑定手机号让绑定手机号
									uni.navigateTo({
										url: '/pages/public/wxmobile'
									});
								}
							});
					}
				});
			},