SQLite 查询有超过 1 行但不断抛出异常 - Angular、Ionic、Android

Question

我有一个 Ionic Angular 应用程序（Android 构建）

我有以下内容：

  getAllUsers() {
    return this.dbInstance.executeSql(`SELECT * from ${this.db_table}`)
      .then((data) => {
        if (data.rows.length > 0) {
          for (let i = 0; i < data.rows.length; i++) {
            console.log('hello world');
            console.log(JSON.stringify(data.rows.item(i)));
          }
        }
      }).catch(e => {
        console.log(JSON.stringify(e));
      });
  }

当我调用 getAllUsers 时，会自动抛出一个异常，并在 android studio

中使用以下控制台登录

2021-12-30 17:50:32.831 25077-25077/io.ionic.starter I/Capacitor/Console: File: http://localhost/src_app_login_login_module_ts.js - Line 421 - Msg: {"rows":{"length":3},"rowsAffected":0}

这是来自控制台的查询日志：

2021-12-30 17:50:32.815 25077-25292/io.ionic.starter V/Capacitor/Plugin: To native (Cordova plugin): callbackId: SQLitePlugin1622878251, service: SQLitePlugin, action: backgroundExecuteSqlBatch, actionArgs: [{"dbargs":{"dbname":"userParameters.db"},"executes":[{"sql":"SELECT 1","params":[]},{"sql":"SELECT * from userParametersTable","params":[]}]}]

我想知道为什么会出现这种行为以及如何解决这个问题。

谢谢

Answer 1

问题是我需要包含参数（以前是可选的，如下所示：

    return this.dbInstance.executeSql(`SELECT * from ${this.db_table}`, [])

而不是

   return this.dbInstance.executeSql(`SELECT * from ${this.db_table}`)

SQLite 查询有超过 1 行但不断抛出异常 - Angular、Ionic、Android

SQLite Query has more than 1 row but keeps throwing exceptions - Angular, Ionic, Android

sqlite

ionic-framework

angular