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我試圖從SQLIte數據庫檢索數據與where子句和使用按鈕單擊事件。這是我DbControler方法從SQLite數據庫Android搜索與where子句非法參數異常
public ArrayList<HashMap<String, String>> searchUser(String title){
ArrayList<HashMap<String, String>> usersList;
usersList = new ArrayList<HashMap<String, String>>();
String selectQuery = "SELECT * FROM books WHERE bookTitle ='?' ";
SQLiteDatabase database = this.getWritableDatabase();
Cursor cursor = database.rawQuery(selectQuery, new String[]{title.toString()});
if (cursor.moveToFirst()) {
do {
HashMap<String, String> map = new HashMap<String, String>();
map.put("bookAccession", cursor.getString(0));
map.put("bookTitle", cursor.getString(1));
map.put("bookEdition", cursor.getString(2));
map.put("bookISBN", cursor.getString(3));
map.put("bookType", cursor.getString(4));
map.put("bookAvailab", cursor.getString(5));
map.put("bookPublisher", cursor.getString(6));
map.put("bookAuther", cursor.getString(7));
map.put("bookcategory", cursor.getString(8));
usersList.add(map);
} while (cursor.moveToNext());
}
database.close();
return usersList;
}
，並即時得到下面的錯誤日誌貓檢索符合條件的數據
java.lang.IllegalArgumentException: Cannot bind argument at index 1 because the index is out of range. The statement has 0 parameters.
at android.database.sqlite.SQLiteProgram.bind(SQLiteProgram.java:212)
at android.database.sqlite.SQLiteProgram.bindString(SQLiteProgram.java:166)
at android.database.sqlite.SQLiteProgram.bindAllArgsAsStrings(SQLiteProgram.java:200)
at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:47)
at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314)
at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1253)
at com.example.captchalib.DBController.searchUser(DBController.java:92)
at com.example.captchalib.TestSearch$1.onClick(TestSearch.java:57)
at android.view.View.performClick(View.java:4084)
請幫我這個