本文介绍了如何更新与ORMLite单引号的财产?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

当我尝试更新包含单引号的属性一个对象,发生错误类型:近阿瓜:语法错误

属性的值是:D'阿瓜

但ORM精简版使用单引号例如SQL:

 更新'表'设置'值'='D'阿瓜

code的结果:

  UpdateBuilder<表,整数GT; updateBuilder = tableDAO.updateBuilder();
尝试{
  updateBuilder.updateColumnValue(价值,tableDTO.getDescricao());
  updateBuilder.update();
}赶上(的SQLException E){
  e.printStackTrace();
}


解决方案

This is a FAQ. Anytime you might have special characters in your statements, you should leverage the SQL ? arguments. With ORMLite, you use the SelectArg class. Sort of an unfortunate name given that its an update.

SelectArg selectArg = new SelectArg(tableDTO.getDescricao());
updateBuilder.updateColumnValue("value", selectArg);
updateBuilder.update();

This will result in the SQL:

UPDATE 'table' SET 'value' = ?

Then the string "D'Agua" will be passed into the update statement as an argument.

More on this via a search for "quotes in queries" in the online docs:

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10-29 23:30