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let appId = 'wxbf338********361';
let secret = 'ce5e6c73*********************8a';
let getUrl = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=appid&secret=secret';
wx.request({
url: getUrl,
data: {
x: '' ,
y: ''
},
header: {
'content-type': 'application/json' // 默认值
},
method:'GET',
dataType:'json',
success: function(res) {
let getUrl = 'https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token='+res.data.access_token;
wx.request({
url: getUrl, //仅为示例,并非真实的接口地址
data: {
width:400,//生成二维码图片大小,越大,越清晰
scene:'38,0',//值视项目而定
page:'pages/wechat'
},
header: {
'content-type': 'application/octet-stream' // 默认值
},
method:'POST',
dataType:'json',
responseType:'arraybuffer',
success: function(res2) {
let base64Image = 'data:image/png;base64,' + wx.arrayBufferToBase64(res2.data);
if (res2.statusCode == 200) {
that.setData ({
QRImage: base64Image, // data 为接口返回的base64字符串,直接添加到image的src中可显示,在canvas上绘图,模拟器显示,但是真机不显示(待解)
})
}
}
})
}
})