微信小程序：登录授权，根据手机号获取凭证，获取用户手机号-Toy模板网

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1.微信小程序授权

controller 层代码

	@Autowired
	private WxUtils wxUtils;
	//小程序 授权
	@RequestMapping(value = "/wx/login", method = RequestMethod.GET, produces = "application/json; charset=utf-8")
	public Result login(@RequestParam("appId")String appId, @RequestParam("secret")String secret, @RequestParam("code")String code) {
		Result result = new Result();
		String s = wxUtils.code2Session(appId, secret, code);
		result.setData(s);
		result.success("success");
		return result;
	}

wxUtils 工具类

@Component
@Slf4j
public class WxUtils {

    private final RestTemplate restTemplate;

    {
        restTemplate = new RestTemplate();
        ResponseErrorHandler responseErrorHandler = new ResponseErrorHandler() {
            @Override
            public boolean hasError(ClientHttpResponse response) throws IOException {
                return false;
            }

            @Override
            public void handleError(ClientHttpResponse response) throws IOException {
                HttpStatus statusCode = response.getStatusCode();
                String statusText = response.getStatusText();
                log.info("【微信接口请求失败】 errorCode={},errorMsg={}", statusCode, statusText);
                throw new ChannelException("微信网络繁忙，请稍后再试。");
            }
        };

        restTemplate.setErrorHandler(responseErrorHandler);
    }



    /**
     * @params: []
     * @return: java.lang.String
     * @Description: 获取用户openId
     */
    public String code2Session(String appId, String secret, String code) {


        //组装参数
        Map<String, String> params = new HashMap<>();
        params.put("appid", appId);
        params.put("secret", secret);
        params.put("code", code);
        params.put("grant_type", "authorization_code");


        StringBuilder sb = new StringBuilder(UrlConstants.WX_CODE_2_SESSION);
        sb.append("?")
                .append("appid=").append(appId).append("&")
                .append("secret=").append(secret).append("&")
                .append("js_code=").append(code).append("&")
                .append("grant_type=").append("authorization_code");

        String result = restTemplate.getForObject(sb.toString(), String.class);

        JSONObject jsonResult = JSON.parseObject(result);
        String openid = jsonResult.getString("openid");
        if (StringUtils.isEmpty(openid)) {
            log.error("【微信code2Session失败！】url={},Params:{},wxResult={}", sb.toString(), JSON.toJSONString(params), result);
            throw new ChannelException("获取用户信息失败，请稍后再试。");
        }
        return jsonResult.getString("openid");
    }



}

2.微信小程序，用户手机号获取

微信小程序，根据code（code为手机号获取凭证）获取用户加密手机号文章来源地址https://www.toymoban.com/news/detail-621457.html

获取用户手机号方法

//小程序 根据code 获取用户手机号
	private String getPhoneNum(String code){
		if (org.apache.commons.lang3.StringUtils.isNotBlank(code)){
			//先获取access_token = appid + secret
			HttpResponse response = HttpRequest.get("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appId + "&secret=" + secret + "").execute();
			JSONObject tokenJson = JSON.parseObject(response.body());
			if(!tokenJson.containsKey("access_token")){
				throw new RuntimeException("微信官方修改了获取access_token令牌接口！");//"501",
			}
			String accessToken =  tokenJson.get("access_token").toString();
			log.info("====[微信小程序获取用户手机号]====accessToken： "+accessToken);
			//用 access_token + code 获取手机号
			JSONObject jsonCode = new JSONObject();
			jsonCode.put("code",code);
			String resPhone = HttpUtil.post("https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=" + accessToken, jsonCode.toString());
			log.info("====[微信小程序获取用户手机号]====resPhone： "+resPhone);
			if(org.springframework.util.StringUtils.isEmpty(resPhone) || !resPhone.contains("phone_info") ||  !resPhone.contains("phoneNumber")){
				throw new RuntimeException("微信官方修改了小程序获取用户手机号码相关接口！");//"501",
			}
			JSONObject resPhoneInfo = JSON.parseObject(resPhone);
			JSONObject phoneInfo=resPhoneInfo.getJSONObject("phone_info");
			System.out.println(resPhoneInfo);
			System.out.println(phoneInfo);
			String phoneNumber = phoneInfo.get("phoneNumber").toString();
			//return R.SUCCESS.setNewData(MapUtil.builder().put("phoneNumber",phoneNumber).build());
			return phoneNumber;
		}
		return null;
	}