微信小程序系列之-微信小程序授权登录

@Getter@Setter@Schema(description="用户信息Dto")
@Slf4jpublicstaticclassWxRegisterLoginUserimplementsSerializable {
publicstaticlongREDIS_REPEAT_TIMEOUT=5;
publicstaticStringREDIS_REPEAT_KEY_PREFIX="redis_repeat_key_";
// 微信获取 sessionKey openId unionId 的后缀privatestaticStringWX_LOGIN_URL="/sns/jscode2session";
@SerialprivatestaticfinallongserialVersionUID=7658930891407547798L;
@Schema(description="用户唯一标识")
@JsonAlias("openid")
privateStringopenId;
@Schema(description="会话密钥")
@JsonAlias("session_key")
privateStringsessionKey;
@Schema(description="用户在开放平台的唯一标识符，若当前小程序已绑定到微信开放平台帐号下会返回")
@JsonAlias("unionid")
privateStringunionId;
@Schema(description="错误码")
@JsonAlias("errcode")
privateIntegererrCode;
@Schema(description="错误详情")
@JsonAlias("errmsg")
privateStringerrMsg;
publicstaticWxRegisterLoginUserinitByWxCode(Stringcode, StringwxUrl, StringwxAppid, StringwxSecret) {
StringbuilderUrl=UrlBuilder.of(wxUrl+WX_LOGIN_URL)
                    .addQuery("appid" , wxAppid)
                    .addQuery("secret" , wxSecret)
                    .addQuery("js_code", code)
                    .addQuery("grant_type" , "authorization_code")
                    .build();
log.info("BusUserDto-wxRegisterLogin-initByWxCode-builderUrl:{}" , builderUrl);
StringwxLoginStr=HttpUtil.get(builderUrl);
log.info("UserDomainServiceImpl-wxRegisterLogin-initByWxCode-wxLoginStr : {}", wxLoginStr);
// 登陆操作WxRegisterLoginUserregisterLoginDto=JacksonUtil.toObject(wxLoginStr, WxRegisterLoginUser.class);
Assert.isTrue(registerLoginDto.validateErrorCode(),
                    () ->newBusException(BusErrorCode.WX_REGISTER_LOGIN_INFO_ERROR.getResultCode(), registerLoginDto.getErrMsg()));
returnregisterLoginDto;
        }
publicBooleanvalidateErrorCode() {
// 微信官方文档 0 代表成功 https://developers.weixin.qq.com/miniprogram/dev/OpenApiDoc/user-login/code2Session.htmlif (StrUtil.isNotEmpty(openId)) {
returnBoolean.TRUE;
            }
returnBoolean.FALSE;
        }

// 是否注册过Assert.isNull(userService.getUserByOpenId(registerLoginDto.getOpenId()), () ->newBusException(BusErrorCode.WX_REGISTER_REPEAT_ERROR));