有關微信網頁授權

let wechat = {
    getCode:function(appids){
        /**
         * 獲取微信code
         */
        let appid = appids;
        let href = window.location.href;
        let redirect_uri = encodeURI(href.split("#")[0]);
        redirect_uri = redirect_uri.replace(/&/g, ‘%26‘);
        window.location.href 
 
= "https://open.weixin.qq.com/connect/oauth2/authorize?appid=" + appid + "&redirect_uri=" + redirect_uri+"&response_type=code&scope=snsapi_userinfo&state=abcdefghigklmnopqrstuvwxyz#wechat_redirect";
    },
    getUrlStr : function(name){
        /**
         * 獲取地址欄參數
         *
         *
         
 
*/
        let reg = new RegExp("(^|\\?|&)" + name + "=([^&]*)(\\s|&|$)","i");
        if(reg.test(window.location.href)){
            return unescape(RegExp.$2.replace(/\+/g," "))
        }
        return undefined
    }
}

export default wechat;

第一步：用戶同意授權，獲取code

第二步：通過code換取網頁授權access_token 

後臺處理，前端只需把code傳個後臺就行了，然後後臺可以根據code獲取微信的oppenid，需要註意的是code是有時效的

微信網頁授權