微信小程序获取用户手机号码详细教程(前端＋后端)

<button open-type="getPhoneNumber" class="login_button" @getphonenumber="login" v-show="!logged">登录</button>

//登录按钮
login(e) {
  console.log(e)
  var detail = e.detail
  if (detail.errMsg == "getPhoneNumber:ok") {
    console.log("用户同意授权")
    var code = detail.code
    uni.request({
      url: "http://localhost:8081/getPhoneNumber", //调用接口
      method: 'POST',
      header: {
        'content-type': 'application/json'
      },
      data: {
        code: code, //请求体中封装code
      },
      success(e) {
        console.log(e)
        var userId = e.data.phone_info.purePhoneNumber;
        uni.setStorage({
          key: "userId",
          data: userId,
          success() {
            uni.switchTab({
              url: "../../pages/homePage/homepage"
            })
          }
        })
      },
      fail(e) {
        uni.showModal({
          title: "错误!",
          content: "网络错误!",
          complete() {
          }
        })
      }
    })
  }
}

@RestController
    public class PhoneNumberController {

        @PostMapping("/getPhoneNumber")
        public Object getPhoneNumber(@RequestBody Map<String,Object> data)
        {
            //通过appid和secret来获取token
            //WXContent.APPID是自定义的全局变量
            String tokenUrl = String.format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s", WXContent.APPID, WXContent.APPSECRET);
            JSONObject token = JSON.parseObject(HttpUtil.get(tokenUrl));

            //通过token和code来获取用户手机号
            String url = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=" + token.getString("access_token");

            //封装请求体
            Map<String, String> paramMap = new HashMap<>();
            paramMap.put("code", data.get("code").toString());

            //封装请求头
            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.APPLICATION_JSON);

            HttpEntity<Map<String, String>> httpEntity = new HttpEntity<>(paramMap,headers);

            //通过RestTemplate发送请求，获取到用户手机号码
            RestTemplate restTemplate = new RestTemplate();
            ResponseEntity<Object> response = restTemplate.postForEntity(url, httpEntity, Object.class);

            //返回到前端展示
            return response.getBody();
        }
    }

<button class="mine_avatar_wrapper" open-type="chooseAvatar" @chooseavatar="onChooseAvatar">
  <image class="mine_image" :src="avatarUrl"></image>
</button>

onChooseAvatar(e)
	{
			this.avatarUrl = e.detail.avatarUrl
			uni.setStorageSync('avatarUrl',this.avatarUrl)
	},