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我正在创建一个应用程序，在自动登录时我需要从本地 sqlite 数据库中检索一些参数。

这是我的身份验证守卫：

export class AutoLoginGuard implements CanLoad {
  constructor(private authService: AuthenticationService, private router: Router) {
  }

  canLoad(): Observable<boolean> {
    return this.authService.isAuthenticated.pipe(
      filter(val => val !== null), // Filter out initial Behaviour subject value
      take(1), // Otherwise the Observable doesn't complete!
      map(isAuthenticated => {
        console.log('Found previous token, automatic login');

        if (isAuthenticated) {
          // Directly open inside area
          console.log('redirect ');
          this.router.navigateByUrl('/nav', {replaceUrl: true});
        } else {
          // Simply allow access to the login
          console.log('not redirect ');

          return true;
        }
      })
    );
  }
}

在上面的内部调用以下是身份验证服务：

export class AuthenticationService {
  // Init with null to filter out the first value in a guard!
  isAuthenticated: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(null);
  token = '';


  constructor(
    protected network: Network,
    protected userParamsService: UserParametersService
  ) {

    this.loadToken().then(
      async (res: any) => {
      },
      async (res) => {
        console.log(res);
        this.isAuthenticated.next(false);
      }
    );
  }

  async loadToken() {
    const token = await Storage.get({key: TOKEN_KEY});
    if (token && token.value) {
      this.token = token.value;

      if (this.network.type == 'none') {
        console.log('Auto Login with JWT token');
        return this.isAuthenticated.next(true);
      } else {

        // Authenticated with server
        try {
          const uuid = await this.getStoredUuid();


          await this.userParamsService.getUserParameters(uuid).then(res => {
            axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
            axios.defaults.headers.post.Authorization = this.token;
            return axios.post('https://www.endpoint.co.uk/applicationApis/auth/autologin.php', {
              res
            }).then((response) => {
              console.log(JSON.stringify(response));
              this.isAuthenticated.next(true);
            });
          });


        } catch (e) {
          console.log(e);
          this.isAuthenticated.next(false);
        }
      }

    } else {
      this.isAuthenticated.next(false);
    }
  }

在上面可以看出我调用了getUserParameters（uuid），这调用了本地sqlite db。但是我在控制台日志中收到以下错误：

2022-01-24 00:51:39.270 25694-25694/io.ionic.starter I/Capacitor/Console: File: http://localhost/main.js - Line 364 - Msg: TypeError: Cannot read properties of undefined (reading 'executeSql')
2022-01-24 00:51:39.271 25694-25694/io.ionic.starter I/Capacitor/Console: File: 
2022-01-24 00:51:39.271 25694-25694/io.ionic.starter I/Capacitor/Console: File: http://localhost/main.js - Line 264 - Msg: Found previous token, automatic login
2022-01-24 00:51:39.273 25694-25813/io.ionic.starter V/Capacitor/Plugin: To native (Cordova plugin): callbackId: SQLitePlugin1829806334, service: SQLitePlugin, action: open, actionArgs: [{"name":"global.db","location":"default","dblocation":"nosync"}]
2022-01-24 00:51:39.273 25694-25813/io.ionic.starter V/SQLitePlugin: Android db implementation: built-in android.database.sqlite package
2022-01-24 00:51:39.274 25694-25820/io.ionic.starter V/info: Open sqlite db: /data/user/0/io.ionic.starter/databases/global.db

特别是这部分 http://localhost/main.js - 第 364 行 - Msg: TypeError: Cannot read properties of undefined (reading 'executeSql')

这让我相信调用 getUserParameters 时 sql 服务还没有准备好。

想知道我该如何解决这个问题？

谢谢

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0 回答 0