我希望在这个方法中返回一个布尔值:
public Boolean isSizeOk(String transactionId){
String sqlQuery = "SELECT true FROM customer_pool WHERE id = "+ transactionID + " AND level = 13)";
//The next line is the problem.
//If I am returning a Boolean List, I can write
List <Boolean> sizeResult = jdbcTemplate.queryForList(sqlQuery, Boolean.class, transactionId);
//But since I only want a boolean value, what will the statement be?
Boolean sizeResult = jdbcTemplate......?
return sizeResult;
}
请帮忙,谢谢。