微信小程序 post请求后台提示缺少参数的解决办法

把请求头中的'content-type': "application/json"改为'content-type': "application/x-www-form-urlencoded"即可。

错误写法

wx.request({
      url: HttpUrl + '/user/wxxcx/denWxxcxPhoneByOpenid',
      method: "post",
      data: {
        openid: "xxxxx",
      },
      header: {
         'content-type': "application/json"
      },
      success (res) {
        console.log(res.data.data)
      }
    })

正确写法

wx.request({
      url: HttpUrl + '/user/wxxcx/denWxxcxPhoneByOpenid',
      method: "post",
      data: {
        openid: "xxxxx",
      },
      header: {
         'content-type': "application/x-www-form-urlencoded"
      },
      success (res) {
        console.log(res.data.data)
      }
    })