表名没有名称列 Android SQLite PHP

Question

我正在使用 PHP 脚本填充我的 SQLiteDatabase，以获取登录凭据和帐户信息。即使登录工作正常，SQLite 在列中我的性别名称也有错误，我不知道我缺少什么。有人可以为我指出吗？因为我和我的朋友找不到它，而且都是 Android 开发新手。

这是错误

>     E/SQLiteDatabase﹕ Error inserting gender=tuesdaycross04@gmail.com bday=24242 email=Male address=asdasd mobile=1995-03-03
> full_name=Arnold
>         android.database.sqlite.SQLiteException: table accounts has no column named gender (code 1): , while compiling: INSERT INTO
> accounts(gender,bday,email,address,mobile,full_name) VALUES
> (?,?,?,?,?,?)

SQLiteHelper

    private static final int DATABASE_VERSION = 1;
        // Database Name
        private static final String DATABASE_NAME = "brm_dbs";
        // Login table name
        private static final String TABLE_LOGIN = "accounts";
        // Login Table Columns names
        private static final String KEY_ID = "id";
        private static final String KEY_NAME = "full_name";
        private static final String KEY_ADDRESS = "address";
        private static final String KEY_MOBILE = "mobile";
        private static final String KEY_EMAIL = "email";
        private static final String KEY_UID = "uid";
        private static final String KEY_CREATED_AT = "created_at";
        private static final String KEY_BDAY = "bday";
        private static final String KEY_GENDER = "gender";

        public SQLiteHandler(Context context) {
            super(context, DATABASE_NAME, null, DATABASE_VERSION);
        }
        // Creating Tables
        @Override
        public void onCreate(SQLiteDatabase db) {
            String CREATE_LOGIN_TABLE = "CREATE TABLE " + TABLE_LOGIN + "("
                    + KEY_ID + " INTEGER PRIMARY KEY," + KEY_NAME + " TEXT,"
                    + KEY_ADDRESS + " TEXT," + KEY_MOBILE + " INTEGER,"
                    + KEY_EMAIL + " TEXT UNIQUE," + KEY_UID + " TEXT,"
                    + KEY_CREATED_AT + " TEXT," + KEY_BDAY + " TEXT,"
                    + KEY_GENDER + " TEXT" + ");";
            db.execSQL(CREATE_LOGIN_TABLE);

            Log.d(TAG, "Database tables created");
        }

public void getloginUser(String full_name, String address,
                             String bday, String gender,
                             String mobile, String email) {
        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();
        //values.put(KEY_UNIQUE_ID, unique_id);
        values.put(KEY_NAME, full_name); // Name
        values.put(KEY_ADDRESS, address); // address
        values.put(KEY_BDAY, bday); // BDAY
        values.put(KEY_GENDER, gender); // GENDER
        values.put(KEY_MOBILE, mobile); // mobile
        values.put(KEY_EMAIL, email); // Email


        // Inserting Row
        long id = db.insert(TABLE_LOGIN, null, values);
        db.close(); // Closing database connection
        Log.d(TAG, "New user inserted into sqlite: " + id);
    }

通过登录凭据插入 SQLite

try {
                    JSONObject jObj = new JSONObject(response);
                    boolean error = jObj.getBoolean("error");
                    // Check for error node in json
                    if (!error) {
                        // user successfully logged in
                        // Create login session
                        session.setLogin(true);
                        JSONObject user = jObj.getJSONObject("user");
                        String full_name = user.getString("full_name");
                        String address = user.getString("address");
                        String mobile = user.getString("mobile");
                        String email = user.getString("email");
                        String bday = user.getString("bday");
                        String gender = user.getString("gender");
                        // Inserting row in users table
                        db.getloginUser(full_name, address, mobile, email, bday, gender);
                        // Launch main activity

                        // Launch main activity
                        Intent intent = new Intent(Loign.this,
                                MainActivity.class);
                        startActivity(intent);
                        finish();

                    } else {
                        // Error in login. Get the error message
                        String errorMsg = jObj.getString("error_msg");
                        Toast.makeText(getApplicationContext(),
                                errorMsg, Toast.LENGTH_LONG).show();
                    }
                } catch (JSONException e) {
                    // JSON error
                    e.printStackTrace();
                }

Answer 1

打开 DDMS 并删除应用程序数据，或者擦除您的模拟器并运行您的应用程序，它会正常工作。该表已经存在，没有性别列，当您正在运行的应用程序时，因为 DB 退出，所以它不会调用您的 SQLiteOpenHelper 的 onCreate 方法，因此您在 DB 之后所做的任何更改都可能不会影响表的结构。

解决方案：

1. 从模拟器中卸载应用并尝试从您的 android studio 中运行应用，

2. 给差异数据库版本说 2 或以前的数据库版本+1。然后 onUpgrade() 方法将调用编写您的代码来更改现有表的结构，或者根据您的要求添加您想要的任何表或删除表。

Answer 2

应该按照创建表的顺序插入值...