java实现微信手机号获取

/**
	 * 微信自动获取手机号
	 * 
	 * @param code
	 * @param encryptedData
	 * @param userId
	 * @param iv
	 * @param request
	 * @param response
	 * @return
	 */
	@RequestMapping("mobile")
	@ResponseBody
	private Map<String, Object> mobile(String code, String encryptedData,
			String userId, String iv, HttpServletRequest request,
			HttpServletResponse response) {
		// 做跨域处理
		response.setContentType("text/html;charset=utf-8");
		response.setHeader("Access-Control-Allow-Origin", "*");
		// 返回参数
		Map<String, Object> datas = new HashMap<String, Object>();
		// 微信对接参数
		Map<String, String> param = new HashMap<String, String>();
		param.put("appid", "自己小程序的appid");
		param.put("secret", "微信返回的小程序校验码");
		if (code != null && code.trim().length() > 0)
			param.put("js_code", code);
		param.put("grant_type", "authorization_code");
		String result = HttpClientUtil.doGet(
				"https://api.weixin.qq.com/sns/jscode2session", param);
		byte[] dataByte = Base64.decode(encryptedData);
		JSONObject userJson = JSONObject.parseObject(result);
		byte[] keyByte = Base64.decode(userJson.getString("session_key"));
		byte[] ivByte = Base64.decode(iv);
		try {
			int base = 16;
			if (keyByte.length % base != 0) {
				int groups = keyByte.length / base
						+ (keyByte.length % base != 0 ? 1 : 0);
				byte[] temp = new byte[groups * base];
				Arrays.fill(temp, (byte) 0);
				System.arraycopy(keyByte, 0, temp, 0, keyByte.length);
				keyByte = temp;
			}
			Security.addProvider(new BouncyCastleProvider());
			Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
			SecretKeySpec spec = new SecretKeySpec(keyByte, "AES");
			AlgorithmParameters parameters = AlgorithmParameters
					.getInstance("AES");
			parameters.init(new IvParameterSpec(ivByte));
			cipher.init(Cipher.DECRYPT_MODE, spec, parameters);// 初始化
			byte[] resultByte = cipher.doFinal(dataByte);
			if (null != resultByte && resultByte.length > 0) {
				String dec = new String(resultByte, "UTF-8");
				System.out.println(dec);
				// 解析出用户数据
				Map<String, Object> wxinfo = (Map) JSON.parse(dec);
				UserInfo userInfo = userInfoService.queryById(userId);
				//用户手机号
				userInfo.setPhone(wxinfo.get("purePhoneNumber").toString());
				userInfo.setLastTime(new Date());
				userInfoService.update(userInfo);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		datas.put(RESPONSE_RESULT, Constants.SUCCESS);
		return datas;
	}