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uniapp微信小程序授權(quán)登錄并獲取手機(jī)號(hào)的方法

 更新時(shí)間:2023年06月30日 08:48:46   作者:Mr阿斌  
這篇文章主要給大家介紹了關(guān)于uniapp微信小程序授權(quán)登錄并獲取手機(jī)號(hào)的相關(guān)資料,我們在uniapp開發(fā)微信小程序的過程中,經(jīng)常需要在微信端登錄,需要的朋友可以參考下

新版:前端要授權(quán)兩次,一次獲取用戶信息授權(quán)碼code,另外一次獲取用戶手機(jī)授權(quán)碼code,全部傳給后端。后端通過用戶信息授權(quán)碼獲取openid,通過手機(jī)授權(quán)碼獲取手機(jī)號(hào)碼。老版:前端傳給后端授權(quán)碼code和用戶手機(jī)授權(quán)回調(diào) 里的iv和encryptedData給后端,后端通過code獲取openid和sessionKey,然后他用sessionKey和iv解密encryptedData獲取手機(jī)號(hào)。最后通過手機(jī)號(hào)進(jìn)行綁定用戶,然后通過登錄驗(yàn)證返回給前端登錄憑證token。

登錄邏輯

新版

1.調(diào)用uni.login()獲取code1

2.用戶主動(dòng)觸發(fā)button按鈕在回調(diào)getPhoneNumber獲取code2

<button open-type="getPhoneNumber" bindgetphonenumber="getPhoneNumber"></button>
Page({
  getPhoneNumber (e) {
    console.log(e.detail.code)
  }
})

3.后端拿到code1獲取openid ,code2獲取手機(jī)號(hào)碼(代碼在api里面)

老版

1.先在onshow()生命周期中獲取code

2.用戶主動(dòng)觸發(fā)button按鈕在回調(diào)getPhoneNumber獲取iv和encryptedData

<button open-type="getPhoneNumber" bindgetphonenumber="getPhoneNumber"></button>
Page({
  getPhoneNumber (e) {
    console.log(e.detail.errMsg)
    console.log(e.detail.iv)
    console.log(e.detail.encryptedData)
  }
})

3.后端拿到code、iv、encryptedData,然后code獲取openid和sessionKey,然后通過sessionKey和iv解密encryptedData獲取到手機(jī)號(hào)

獲取得到的解密數(shù)據(jù)為以下 json 結(jié)構(gòu):
{
    "phoneNumber": "13580006666",
    "purePhoneNumber": "13580006666",
    "countryCode": "86",
    "watermark":
    {
        "appid":"APPID",
        "timestamp": TIMESTAMP
    }
}

解密工具類

package hry.project.cdwjs.wxLogin;
import org.apache.commons.codec.binary.Base64;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.StandardCharsets;
import java.security.*;
/**
 * @author qyb
 * @version 1.0
 * @date 2023/3/13-9:38
 */
public class WxDecryptUtills {
    public static boolean initialized = false;
    /**
     * Adds a provider to the next position available.
     */
    public static void initialize() {
        if (initialized) return;
        // Construct a new provider.  This should only be required when
        // using runtime registration of the provider using the
        Security.addProvider(new BouncyCastleProvider());
        initialized = true;
    }
    // iv處理
    public static AlgorithmParameters generateIV(byte[] iv) throws Exception{
        AlgorithmParameters params = AlgorithmParameters.getInstance("AES");
        params.init(new IvParameterSpec(iv));
        return params;
    }
    /**
     * AES解密
     * @param content 密文
     * @param keyByte sessionKey
     * @param ivByte iv
     * @return 解密json數(shù)據(jù)
     */
    public static byte[] decrypt(byte[] content, byte[] keyByte, byte[] ivByte)  {
        initialize();
        try {
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS7Padding");
            Key sKeySpec = new SecretKeySpec(keyByte, "AES");
            // cipher 初始化
            cipher.init(Cipher.DECRYPT_MODE, sKeySpec, generateIV(ivByte));
            return cipher.doFinal(content);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
    /**
     * 微信小程序用戶信息解密
     * @param encryptedData 加密數(shù)據(jù)
     * @param sessionKey    會(huì)話密鑰
     * @param iv            向量
     * @return {@link String}
     */
    public static String decrypt(String encryptedData, String sessionKey, String iv){
        try {
            byte[] resultByte = decrypt(Base64.decodeBase64(encryptedData), Base64.decodeBase64(sessionKey), Base64.decodeBase64(iv));
            if(null != resultByte && resultByte.length > 0){
                return new String(resultByte, StandardCharsets.UTF_8);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }
}

api

package hry.project.cdwjs.wxLogin.impl;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import hry.bean.JsonResult;
import hry.business.cu.model.CuCustomer;
import hry.business.cu.service.CuCustomerService;
import hry.project.cdwjs.wxLogin.WxDecryptUtills;
import hry.project.cdwjs.wxLogin.WxLoginService;
import hry.project.cdwjs.wxLogin.WxLoginVo;
import hry.redis.RedisService;
import hry.security.jwt.JWTToken;
import hry.security.jwt.JWTUtil;
import hry.utils.HttpUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import java.util.HashMap;
/**
 * @author qyb
 * @version 1.0
 * @date 2023/3/9-17:38
 */
@Service
@Slf4j
public class WxLoginServiceImpl implements WxLoginService {
    @Value("${wxLogin.appId}")
    private String appId;
    @Value("${wxLogin.appSecret}")
    private String appSecret;
    @Autowired
    private CuCustomerService cuCustomerService;
    @Autowired
    private RedisService redisService;
    /**
     * 獲取accesstoken
     *
     * @return
     */
    private String getAccessToken() {
        String accessToken = "";
        String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appId + "&secret=" + appSecret;
        try {
            String resultString = HttpUtils.get(url);
            log.info("獲取微信accessToken:{}", resultString);
            if (StringUtils.isNotEmpty(resultString)) {
                JSONObject jsonObject = JSON.parseObject(resultString);
                accessToken = jsonObject.get("access_token").toString();
            } else {
                log.error("返回值為空,請檢查請求報(bào)文或者請求地址是否正確");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return accessToken;
    }
    /**
     * 獲取手機(jī)號(hào)
     */
    private String getPhoneNumber(String code) {
        String phoneNumber = "";
        String url = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=" + getAccessToken();
        HashMap<String, String> params = new HashMap<>();
        params.put("code", code);
        try {
            String resultString = HttpUtils.postByQuery(url, params, null);
            log.info("獲取微信手機(jī)號(hào)碼:{}", resultString);
            if (StringUtils.isNotEmpty(resultString)) {
                JSONObject jsonObject = JSON.parseObject(resultString);
                JSONObject phone_info = jsonObject.getJSONObject("phone_info");
                phoneNumber = phone_info.getString("phoneNumber");
            } else {
                log.error("返回值為空,請檢查請求報(bào)文或者請求地址是否正確");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return phoneNumber;
    }
    /**
     * 獲取openId
     */
    private String getOpenId(String code) {
        String url = "https://api.weixin.qq.com/sns/jscode2session?appid=" + appId + "&secret=" + appSecret + "&js_code=" + code + "&grant_type=authorization_code";
        try {
            String resultString = HttpUtils.get(url);
            log.info("獲取微信openId:{}", resultString);
            if (StringUtils.isNotEmpty(resultString)) {
                return resultString;
            } else {
                log.error("返回值為空,請檢查請求報(bào)文或者請求地址是否正確");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }
    @Override
    public JsonResult loginByWx(WxLoginVo wxLoginVo) {
        String res = this.getOpenId(wxLoginVo.getUserInfoCode());
        JSONObject jsonObject = JSONObject.parseObject(res);
        String openId = jsonObject.getString("openid");
        String sessionKey = jsonObject.getString("session_key");
        if (StringUtils.isEmpty(openId)) {
            return new JsonResult().setMsg("未獲取到openId,登錄失敗");
        }
        String data = WxDecryptUtills.decrypt(wxLoginVo.getEncryptData(), sessionKey, wxLoginVo.getIv());
        JSONObject jsonObject1 = JSONObject.parseObject(data);
        String phoneNumber =jsonObject1.getString("phoneNumber");
        if (StringUtils.isEmpty(phoneNumber)) {
            return new JsonResult().setMsg("未獲取到手機(jī)號(hào),登錄失敗");
        }
        CuCustomer cuCustomer = cuCustomerService.checkMobile(phoneNumber);
        if (cuCustomer == null) {
//            注冊
            cuCustomer = cuCustomerService.regist3(openId, phoneNumber, wxLoginVo.getNickname(), wxLoginVo.getAvatar());
        } else {
//        寫入微信openid
            if (StringUtils.isEmpty(cuCustomer.getWxOpenId())) {
                cuCustomer.setWxOpenId(openId);
            }
            cuCustomer.setWxAvatar(wxLoginVo.getAvatar());
            cuCustomerService.update(cuCustomer);
        }
//        登錄
        String token = JWTUtil.sign(phoneNumber, JWTToken.SOURCE_PC, JWTToken.TYPE_CUSTOMER, cuCustomer.getPassword());
        redisService.save(JWTUtil.getCustomerRefreshTimeKey(token), JSON.toJSONString(cuCustomer), JWTUtil.REFRESH_TIME);
        redisService.save(JWTUtil.getCustomerUserKey(token), JSON.toJSONString(cuCustomer), JWTUtil.EXPIRE_TIME);
        //防止用戶多端登錄,產(chǎn)生多個(gè)token
        String oldTokenStr = redisService.get("LOGINCUCUSTOMER:" + cuCustomer.getId());
        if (StringUtils.isNotEmpty(oldTokenStr)) {
            JWTToken oldToken = new JWTToken(oldTokenStr);
            redisService.delete("JWT:token:" + oldToken.getSource() + ":" + oldToken.getType() + ":refreshTime:" + oldToken.getSignId());
            redisService.delete("JWT:token:" + oldToken.getSource() + ":" + oldToken.getType() + ":user:" + oldToken.getSignId());
        }
        redisService.save("LOGINCUCUSTOMER:" + cuCustomer.getId(), token);
        HashMap<String, Object> map = new HashMap<>();
        map.put("token", token);
        return new JsonResult().setSuccess(true).setObj(map);
    }
}

注意:老版調(diào)用過程中一定要先調(diào)用uni.login(),再去觸發(fā)button獲取手機(jī)號(hào),不然會(huì)導(dǎo)致sessionKey失效,從而使得后端解密失敗。

微信小程序文檔

總結(jié)

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