uniapp获取微信用户信息登录

wx.login({
          success: res => {
            if (res.code) {
              // 获取 code 成功后，通过微信开放接口获取用户 openid
              wx.request({
                url: '后台接口',
                data: {
                  code: res.code,
                },
                success: res => {
                  console.log(res.data.openid);
                  this.openid = res.data.openid
                  uni.setStorageSync('openid', res.data.openid)
                }
              });
            }
          },
          fail: err => {
            console.log(err);
          }
        });

<view class="">
               // 调用微信开放能力
      <button open-type="chooseAvatar" @chooseavatar="chooseAvatar"
        style="width:190rpx;height: 190rpx;border-radius: 50%;padding: 0;margin-top: 20px;">
        <image :src="image" class="imageAsdf" style="width: 200rpx;height: 200rpx;border-radius: 100%;" />
      </button>
    </view>

<view style="width: 60%;margin: auto;margin-top: 10px;">
      <input id="nickname-input" v-model="nickname" class="authorization white" type="nickname"
        placeholder="请输入用户昵称" style="width: 100%;text-align: center;" @change="change">
    </view>

change(e) {
        this.nickname = e.detail.value
      },
      chooseAvatar(e) {
        console.log(e);
        this.image = e.detail.avatarUrl
      },

// 登录
      logins() {
        let that = this;
        if (that.nickname == '') {
          uni.showToast({
            icon: 'none',
            title: '请输入用户昵称',
            // duration: 2000
          });
        } else if (that.image == '') {
          uni.showToast({
            icon: 'none',
            title: '请上传用户头像',
            // duration: 2000
          });
        }
        if (that.nickname != '' && that.image != '') {
          uni.request({
            url: '登录接口',
                        //参数
            data: {
              openid: that.openid,
                  value:value
            },
            dataType: 'json',
            method: "POST",
            success(res) {
              console.log(res);
              if (res.data.err == '请求成功') {
                console.log(res.data.userid);
                uni.setStorageSync('userid', res.data.userid);
                uni.showToast({
                  title: '登录成功',
                  duration: 2000
                });
                                // 跳转路径
                let path = uni.getStorageSync('paths');
                setTimeout(() => {
                  uni.reLaunch({
                    url:`/pages/${path}/${path}`
                  })
                }, 2000)
              } else {
                uni.showToast({
                  title: '登录失败',
                  icon:'none',
                  duration: 2000
                });
              }
            }
          })
        }
      }