【微信開發(fā)】SpringBoot 集成微信小程序授權(quán)登錄

我這里采用了第三方的依賴，目前是最火的微信開發(fā)工具吧，WxJava

1、SprinBoot 后端

（1）準(zhǔn)備工作

引入相關(guān)依賴

        <dependency>            <groupId>com.github.binarywanggroupId>            <artifactId>weixin-java-payartifactId>            <version>4.1.0version>        dependency>

配置application.yml

# ----------------------系統(tǒng)配置# 業(yè)務(wù)配置pay-platform:  # 微信  wx:    pay:      appId:       secret:       mchId:       mchKey:       keyPath:       notifyUrl: 

（2）相關(guān)配置類

屬性類

import lombok.Data;import org.springframework.boot.context.properties.ConfigurationProperties;/** * wxpay pay properties. * * @author Binary Wang */@Data@ConfigurationProperties(prefix = "pay-platform.wx.pay")public class WxPayProperties {	/**	 * 設(shè)置微信公眾號(hào)或者小程序等的appid	 */	private String appId;	private String secret;	/**	 * 微信支付商戶號(hào)	 */	private String mchId;	/**	 * 微信支付商戶密鑰	 */	private String mchKey;	/**	 * 服務(wù)商模式下的子商戶公眾賬號(hào)ID，普通模式請(qǐng)不要配置，請(qǐng)?jiān)谂渲梦募袑?duì)應(yīng)項(xiàng)刪除	 */	private String subAppId;	/**	 * 服務(wù)商模式下的子商戶號(hào)，普通模式請(qǐng)不要配置，最好是請(qǐng)?jiān)谂渲梦募袑?duì)應(yīng)項(xiàng)刪除	 */	private String subMchId;	/**	 * apiclient_cert.p12文件的絕對(duì)路徑，或者如果放在項(xiàng)目中，請(qǐng)以classpath:開頭指定	 */	private String keyPath;	/**	 * 支付回調(diào)地址	 */	private String notifyUrl;}

屬性配置類

import com.github.binarywang.wxpay.config.WxPayConfig;import com.github.binarywang.wxpay.service.WxPayService;import com.github.binarywang.wxpay.service.impl.WxPayServiceImpl;import lombok.AllArgsConstructor;import org.apache.commons.lang3.StringUtils;import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;import org.springframework.boot.context.properties.EnableConfigurationProperties;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;/** * @author Binary Wang */@Configuration@ConditionalOnClass(WxPayService.class)@EnableConfigurationProperties(WxPayProperties.class)@AllArgsConstructorpublic class WxPayConfiguration {	private WxPayProperties properties;	@Bean	@ConditionalOnMissingBean	public WxPayService wxService() {		WxPayConfig payConfig = new WxPayConfig();		payConfig.setAppId(StringUtils.trimToNull(this.properties.getAppId()));		payConfig.setMchId(StringUtils.trimToNull(this.properties.getMchId()));		payConfig.setMchKey(StringUtils.trimToNull(this.properties.getMchKey()));		payConfig.setSubAppId(StringUtils.trimToNull(this.properties.getSubAppId()));		payConfig.setSubMchId(StringUtils.trimToNull(this.properties.getSubMchId()));		payConfig.setKeyPath(StringUtils.trimToNull(this.properties.getKeyPath()));		// 可以指定是否使用沙箱環(huán)境		payConfig.setUseSandboxEnv(false);		WxPayService wxPayService = new WxPayServiceImpl();		wxPayService.setConfig(payConfig);		return wxPayService;	}}

（3）相關(guān)實(shí)體類

相關(guān)實(shí)體類，都可以使用json的map格式來處理，我這里是個(gè)人習(xí)慣

import lombok.Data;import lombok.experimental.Accessors;/** * 接口調(diào)用憑證 * https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/access-token/auth.getAccessToken.html * * @author Tellsea * @date 2021/05/20 */@Data@Accessors(chain = true)public class AccessToken {	private String accessToken;	/**	 * 憑證有效時(shí)間，單位：秒。目前是7200秒之內(nèi)的值。	 */	private Integer expiresIn;	private Integer errCode;	private String errMsg;}

import lombok.Data;import lombok.experimental.Accessors;/** * code換取openId * https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/login/auth.code2Session.html * * @author Tellsea * @date 2021/05/20 */@Data@Accessors(chain = true)public class Code2Session {	private String openId;	private String sessionKey;	private String unionId;	private Integer errCode;	private String errMsg;}

import lombok.Data;import lombok.experimental.Accessors;/** * 微信登錄 * * @author Tellsea * @date 2021/05/19 */@Data@Accessors(chain = true)public class WeiXinLogin {    private String code;    private String encryptedData;    private String iv;    private String nickName;    private String avatarUrl;    private Integer gender;}

 lombok.Data;import lombok.experimental.Accessors;/** * 微信 token * * @author Tellsea * @date 2021/05/20 */@Data@Accessors(chain = true)public class WeiXinToken {    public static String token;}

（4）處理后端邏輯

控制層

package com.ruoyi.business.appuser.controller;import cn.hutool.core.lang.Validator;import com.alibaba.fastjson.JSONObject;import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;import com.ruoyi.business.appuser.service.WeiXinService;import com.ruoyi.business.appuser.vo.wx.Code2Session;import com.ruoyi.business.appuser.vo.wx.OrderInfo;import com.ruoyi.business.appuser.vo.wx.WeiXinLogin;import com.ruoyi.common.constant.Constants;import com.ruoyi.common.constant.UserConstants;import com.ruoyi.common.core.domain.AjaxResult;import com.ruoyi.common.core.domain.entity.SysUser;import com.ruoyi.common.core.domain.model.LoginUser;import com.ruoyi.common.utils.SecurityUtils;import com.ruoyi.common.utils.ServletUtils;import com.ruoyi.framework.web.service.SysLoginService;import com.ruoyi.framework.web.service.SysPermissionService;import com.ruoyi.framework.web.service.TokenService;import com.ruoyi.system.service.ISysUserService;import com.zhhy.tool.utils.IntegerUtils;import io.swagger.annotations.Api;import io.swagger.annotations.ApiOperation;import lombok.extern.slf4j.Slf4j;import org.apache.commons.codec.binary.Base64;import org.apache.commons.lang3.StringUtils;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.util.CollectionUtils;import org.springframework.web.bind.annotation.*;import javax.crypto.Cipher;import javax.crypto.spec.IvParameterSpec;import javax.crypto.spec.SecretKeySpec;import java.nio.charset.StandardCharsets;import java.security.spec.AlgorithmParameterSpec;import java.util.List;import java.util.Set;/** * @author Tellsea * @date 2021/11/09 */@Slf4j@Api(value = "微信API", tags = {"微信API"})@RestController@RequestMapping("/au/weiXin")public class AuWeiXinController {	@Autowired	private ISysUserService userService;	@Autowired	private SysLoginService loginService;	@Autowired	private WeiXinService weiXinService;	@Autowired	private SysPermissionService permissionService;	@Autowired	private TokenService tokenService;	@ApiOperation("微信用戶登錄")	@PostMapping("login")	public AjaxResult login(@RequestBody WeiXinLogin dto) {		Code2Session code2Session = weiXinService.code2Session(dto.getCode());		if (StringUtils.isNotEmpty(code2Session.getOpenId())) {			// 解析電話號(hào)碼			String phoneNumber;			byte[] byEncrypdata = Base64.decodeBase64(dto.getEncryptedData());			byte[] byIvdata = Base64.decodeBase64(dto.getIv());			byte[] bySessionkey = Base64.decodeBase64(code2Session.getSessionKey());			AlgorithmParameterSpec ivSpec = new IvParameterSpec(byIvdata);			try {				SecretKeySpec keySpec = new SecretKeySpec(bySessionkey, "AES");				Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");				cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec);				String phoneResult = new String(cipher.doFinal(byEncrypdata), StandardCharsets.UTF_8);				JSONObject phoneObject = JSONObject.parseObject(phoneResult);				phoneNumber = phoneObject.getString("phoneNumber");			} catch (Exception e) {				e.printStackTrace();				return AjaxResult.error("手機(jī)號(hào)碼解密失敗");			}			// 根據(jù)openId查詢是否存在這個(gè)用戶			List<SysUser> list = userService.list(new LambdaQueryWrapper<SysUser>().eq(SysUser::getOpenId, code2Session.getOpenId())				.or().eq(SysUser::getUserName, phoneNumber).or().eq(SysUser::getPhonenumber, phoneNumber));			AjaxResult ajax = AjaxResult.success();			if (CollectionUtils.isEmpty(list)) {				// 添加新用戶				String defaultPassword = "111111";				SysUser user = new SysUser()					.setOpenId(code2Session.getOpenId())					.setUserName(phoneNumber)					.setNickName(dto.getNickName())					.setDeptId(0L)					.setPassword(defaultPassword)					.setPhonenumber(phoneNumber)					.setAvatar(dto.getAvatarUrl());				if (IntegerUtils.eq(dto.getGender(), 0)) {					user.setSex("2");				} else if (IntegerUtils.eq(dto.getGender(), 1)) {					user.setSex("0");				} else if (IntegerUtils.eq(dto.getGender(), 2)) {					user.setSex("1");				}				if (UserConstants.NOT_UNIQUE.equals(userService.checkUserNameUnique(user.getUserName()))) {					return AjaxResult.error("手機(jī)號(hào)已被注冊(cè)");				} else if (Validator.isNotEmpty(user.getPhonenumber())					&& UserConstants.NOT_UNIQUE.equals(userService.checkPhoneUnique(user))) {					return AjaxResult.error("手機(jī)號(hào)已被使用");				}				user.setCreateBy(SecurityUtils.getUsername());				user.setPassword(SecurityUtils.encryptPassword(user.getPassword()));				// 默認(rèn)給角色用戶				user.setRoleIds(new Long[]{1L});				userService.insertUser(user);				String token = loginService.login(user.getUserName(), defaultPassword);				ajax.put(Constants.TOKEN, token);				return ajax;			} else if (list.size() == 1) {				// 更新用戶信息：這里查詢出的一個(gè)信息，可能是openId、userName、phonenumber三個(gè)字段其中某個(gè)查出來的				SysUser sysUser = list.get(0);				sysUser.setNickName(dto.getNickName());				sysUser.setAvatar(dto.getAvatarUrl());				if (IntegerUtils.eq(dto.getGender(), 0)) {					sysUser.setSex("2");				} else if (IntegerUtils.eq(dto.getGender(), 1)) {					sysUser.setSex("0");				} else if (IntegerUtils.eq(dto.getGender(), 2)) {					sysUser
            
                     

                 

                                                                                                                    
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