crossorigin="anonymous"></script>
<script src="http://res.wx.qq.com/open/js/jweixin-1.4.0.js"></script>
</head>
<body>
<div id="index">
<div class="box">
<div class="initOauth2" type="snsapi_base">获取微信授权(静默)</div>
<div class="initOauth2" type="snsapi_userinfo">获取微信授权(弹框)</div>
<br>
<div class="wxSweep">扫一扫</div>
<br>
<div class="getUserInfo">获取用户信息</div>
</div>
<div class="userInfo"></div>
</div>
</body>
<script>
let BASE_URL = 'http://wxtestapi.junlli.com'
// 获取 url 参数
const getValue = () => {
let flag = decodeURI(window.location.search.substr(1));
if (!flag) return undefined
let arr = flag.split('&')
if (arr.length <= 0) return undefined
let obj = {}
for (let i = 0; i < arr.length; i++) {
let tempArr = arr[i].split('=')
obj[tempArr[0]] = tempArr[1] }
return obj
}
let urlParams = getValue()
let code
// 判断是否有code
if (urlParams && urlParams.code) {
code = urlParams.code
$('.getUserInfo').css('display', 'inline-block')
}
$('.getUserInfo').on('click', function() {
if (!code) return alert('请重新获取授权')
$.ajax({
url: BASE_URL + '/getUserInfo',
type: 'post',
data: {
code,
},
success: function(data) {
console.log(data)
$('.userInfo').html(JSON.stringify(data))
},
error: function(error) {
console.log(error)
alert('请重新获取授权')
}
})
})
// 获取微信授权
$('.box .initOauth2').on('click', function() {
wxInitOauth2($(this).attr('type'))
})
// 初始化 微信授权
wxInitOauth2 = type => {
let url = window.location.origin + window.location.pathname
console.log('url', url)
$.ajax({
url: BASE_URL + '/getOauth2',
type: 'post',
data: {
url,
type,
state: 'abcde'
},
success: function(data) {
// 去跳转
window.location.href = data.url
// console.log(data)
},
error: function(error) {
console.log(error)
},
})
}
</script>
</html>
下面是node后台代码
const config = require('./config') // 引入配置文件// 通过 code 获取用户的 openId 和 access_token
const getOpenIdAndAccessToken = code => {
let params = {
appid: config.appId,
secret: config.appSecret,
code,
grant_type: 'authorization_code'
}
let url = `https://api.weixin.qq.com/sns/oauth2/access_token?${qs.stringify(params)}`
return new Promise((resolve, reject) => {
