客户端代码：

wx.login({
      success (res) {
        if (res.code) {
          //console.log(res.code)
          //发起网络请求
          wx.request({
            url: 'http://www.服务器域名:8080/user/getopenid',
            header: {
              'content-type': 'application/x-www-form-urlencoded' // 默认值
            },
            
            method:"POST",
            data: {
              code: res.code 
            },
            success(res){
              //解析用户信息
              var my = getUserInfoByHtml(res.data.replaceAll(""","\"").replaceAll("'","\'"))
              console.log(my)
              my = JSON.parse(my.replaceAll(" ",""))
              my.place = my.place.replaceAll("\'","").replaceAll("[","").replaceAll("]","")
              if(my.power != 0){
                that.UpdateShowList(my)
              }
              wx.setStorage({
                key:'myinfo',
                data:my
              })
              that.setData({
                bannerData:that.data.bannerData,
                myInfo : my
              })
            },
            fail(res){
              console.log(res)
            }
          })
        } else {
          console.log('登录失败！' + res.errMsg)
        }
      }
    }) 

在接口测试过程结果已经获取

报错情况