uniapp开发H5网页授权步骤

第一步是微信公众平台申请测试账号

第二部在网页授权（修改）填写回调域名，测试可以使用自己本地的端口，注意：这里不可以添加http:// 只准添加例如：baidu.com


第三部按照里面的只是即可

代码如下

1，// 获取code
			getCode() {
    
    
				this.code = ''
				let origin = 'http://192.168.1.115:8082/mycenter/mycenter' //网页授权的回调域名，这里设置的是本地端口
				let urlNow = encodeURIComponent(origin); //处理域名
				let scope = "snsapi_userinfo"; //弹框显示授权
				let appid = "公众平台申请的id";
				this.code = this.codeurl  
				// 截取code
				if (this.code == null || this.code === '') {
    
     //未授权qu授权
					let url =
				`https://open.weixin.qq.com/connect/oauth2/authorize?
				appid=${
      
      appid}&redirect_uri=${
      
      urlNow}&
				response_type=code&scope=${
      
      scope}&
				state=123#wechat_redirect`;
					window.location.href = url;
				}
			},
			getUrlCode() {
    
     // 截取url中的code方法
				var url = location.search
				var theRequest = new Object()
				if (url.indexOf("?") != -1) {
    
    
					var str = url.substr(1)
					var strs = str.split("&")
					for (var i = 0; i < strs.length; i++) {
    
    
						theRequest[strs[i].split("=")[0]] = (strs[i].split("=")[1])
					}
				}
				return theRequest
			},

2.// 拿code换取accessToken和openid最后获取用户信息
			async saveOpenID() {
    
    
				let data = {
    
    
					code: this.codeurl,
					initiationID: this.rankvalue(32)
				}
				if (this.codeurl) {
    
    
					const res = await this.myrequest.post('/dlt/user/access_token', data)
					if (res.result) {
    
    
						this.accessToken = res.result.accessToken
						this.openid = res.result.openid
						this.login() //获取用户登录信息
					}
				}
			},
			// 获取登录用户信息
			async login() {
    
    
				let loginData = {
    
    
					loginCode: this.openid,
					initiationID: this.rankvalue(32),
					accessToken: this.accessToken
				}
				const userInfo = await this.myrequest.post("/dlt/user/login", loginData)
				this.headImage =userInfo.result.headImage
				this.userName = userInfo.result.userName
			},


created() {
    
    	
	 this.codeurl = this.getUrlCode().code //获取code
	 this.getCode() 	
	},