使用ContentValues for insertOrThrow获取引用的字符串

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Getting quoted string using ContentValues for insertOrThrow

如何在 ContentValues 对象中获取带引号的字符串以在 sqlite 插入中使用？ SQLite 似乎对我的价值

感到窒息

//inside a for loop of a NodeList

  ContentValues map = new ContentValues();

  Element elm;

  elm = (Element) nodes.item(i);

  String elmname = elm.getTagName();

  map.put("foto", getValue(elm,"foto"));

  map.put("fotonormal", getValue(elm,"foto-normal"));

  map.put("link", getValue(elm,"link"));



  myDatabase.beginTransaction();

  try {

    myDatabase.insertOrThrow(TABLE_ENDING, null, map);

    Log.i(TAG,"Added");

    myDatabase.setTransactionSuccessful();

  } catch (Exception err) {

    Log.i(TAG,"Transaction failed. Exception:" + err.getMessage());

  } finally {

    myDatabase.endTransaction();

  }Transaction failed. Exception: unrecognized token:":": INSERT INTO tbl_ending (fotonormal, foto, link) VALUES (https://example.com/fotonormal.jpg, https://example.com/foto.jpg, https://example.com/);INSERT INTO tbl_ending (fotonormal, foto, link) VALUES ("https://example.com/fotonormal.jpg","https://example.com/foto.jpg", "https://example.com/");map.put("foto", (String) getValue(elm,"foto"));

map.put("fotonormal", (String) getValue(elm,"foto-normal"));

map.put("link", (String) getValue(elm,"link"));return (String) getElementValue(n.item(0));

这给了我这个错误

//inside a for loop of a NodeList

  ContentValues map = new ContentValues();

  Element elm;

  elm = (Element) nodes.item(i);

  String elmname = elm.getTagName();

  map.put("foto", getValue(elm,"foto"));

  map.put("fotonormal", getValue(elm,"foto-normal"));

  map.put("link", getValue(elm,"link"));



  myDatabase.beginTransaction();

  try {

    myDatabase.insertOrThrow(TABLE_ENDING, null, map);

    Log.i(TAG,"Added");

    myDatabase.setTransactionSuccessful();

  } catch (Exception err) {

    Log.i(TAG,"Transaction failed. Exception:" + err.getMessage());

  } finally {

    myDatabase.endTransaction();

  }Transaction failed. Exception: unrecognized token:":": INSERT INTO tbl_ending (fotonormal, foto, link) VALUES (https://example.com/fotonormal.jpg, https://example.com/foto.jpg, https://example.com/);INSERT INTO tbl_ending (fotonormal, foto, link) VALUES ("https://example.com/fotonormal.jpg","https://example.com/foto.jpg", "https://example.com/");map.put("foto", (String) getValue(elm,"foto"));

map.put("fotonormal", (String) getValue(elm,"foto-normal"));

map.put("link", (String) getValue(elm,"link"));return (String) getElementValue(n.item(0));

我认为 SQL 语句应该是

//inside a for loop of a NodeList

  ContentValues map = new ContentValues();

  Element elm;

  elm = (Element) nodes.item(i);

  String elmname = elm.getTagName();

  map.put("foto", getValue(elm,"foto"));

  map.put("fotonormal", getValue(elm,"foto-normal"));

  map.put("link", getValue(elm,"link"));



  myDatabase.beginTransaction();

  try {

    myDatabase.insertOrThrow(TABLE_ENDING, null, map);

    Log.i(TAG,"Added");

    myDatabase.setTransactionSuccessful();

  } catch (Exception err) {

    Log.i(TAG,"Transaction failed. Exception:" + err.getMessage());

  } finally {

    myDatabase.endTransaction();

  }Transaction failed. Exception: unrecognized token:":": INSERT INTO tbl_ending (fotonormal, foto, link) VALUES (https://example.com/fotonormal.jpg, https://example.com/foto.jpg, https://example.com/);INSERT INTO tbl_ending (fotonormal, foto, link) VALUES ("https://example.com/fotonormal.jpg","https://example.com/foto.jpg", "https://example.com/");map.put("foto", (String) getValue(elm,"foto"));

map.put("fotonormal", (String) getValue(elm,"foto-normal"));

map.put("link", (String) getValue(elm,"link"));return (String) getElementValue(n.item(0));

我怎样才能得到这个输出呢？

这当然是很奇怪的行为。您的 map.put 语句中基本上有弱类型，这无济于事。我倾向于显式转换 getValue 参数，只是为了看看是否能解决问题，即：

//inside a for loop of a NodeList

  ContentValues map = new ContentValues();

  Element elm;

  elm = (Element) nodes.item(i);

  String elmname = elm.getTagName();

  map.put("foto", getValue(elm,"foto"));

  map.put("fotonormal", getValue(elm,"foto-normal"));

  map.put("link", getValue(elm,"link"));



  myDatabase.beginTransaction();

  try {

    myDatabase.insertOrThrow(TABLE_ENDING, null, map);

    Log.i(TAG,"Added");

    myDatabase.setTransactionSuccessful();

  } catch (Exception err) {

    Log.i(TAG,"Transaction failed. Exception:" + err.getMessage());

  } finally {

    myDatabase.endTransaction();

  }Transaction failed. Exception: unrecognized token:":": INSERT INTO tbl_ending (fotonormal, foto, link) VALUES (https://example.com/fotonormal.jpg, https://example.com/foto.jpg, https://example.com/);INSERT INTO tbl_ending (fotonormal, foto, link) VALUES ("https://example.com/fotonormal.jpg","https://example.com/foto.jpg", "https://example.com/");map.put("foto", (String) getValue(elm,"foto"));

map.put("fotonormal", (String) getValue(elm,"foto-normal"));

map.put("link", (String) getValue(elm,"link"));return (String) getElementValue(n.item(0));

菲利普的回答让我走上了正确的道路，我将函数 getValue 的返回值转换为字符串

//inside a for loop of a NodeList

  ContentValues map = new ContentValues();

  Element elm;

  elm = (Element) nodes.item(i);

  String elmname = elm.getTagName();

  map.put("foto", getValue(elm,"foto"));

  map.put("fotonormal", getValue(elm,"foto-normal"));

  map.put("link", getValue(elm,"link"));



  myDatabase.beginTransaction();

  try {

    myDatabase.insertOrThrow(TABLE_ENDING, null, map);

    Log.i(TAG,"Added");

    myDatabase.setTransactionSuccessful();

  } catch (Exception err) {

    Log.i(TAG,"Transaction failed. Exception:" + err.getMessage());

  } finally {

    myDatabase.endTransaction();

  }Transaction failed. Exception: unrecognized token:":": INSERT INTO tbl_ending (fotonormal, foto, link) VALUES (https://example.com/fotonormal.jpg, https://example.com/foto.jpg, https://example.com/);INSERT INTO tbl_ending (fotonormal, foto, link) VALUES ("https://example.com/fotonormal.jpg","https://example.com/foto.jpg", "https://example.com/");map.put("foto", (String) getValue(elm,"foto"));

map.put("fotonormal", (String) getValue(elm,"foto-normal"));

map.put("link", (String) getValue(elm,"link"));return (String) getElementValue(n.item(0));

现在我可以成功插入了。

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