通过JDBC preparedstatement之间的mysql和使用 - 获取参数索引超出范围异常

Question

从select参数化参数化值（BETWEEN的日期值，AND）

我的查询

SELECT COUNT(*) AS assignedtotalcount FROM ticket, ticket_data
WHERE ticket.`ticket_id` = ticket_data.`ticket_id`
AND ticket.`created` BETWEEN '?' AND '?'

从上面的查询参数化BETWEEN，AND

中的值

Java代码

static String dateFrom = "2018-01-01";
static String dateTo = "2018-01-31";
String query = reportQuery.toString();
statement = connection.createStatement();
preparedStatement = connection.prepareStatement(query);
preparedStatement.setString(1, dateFrom);
preparedStatement.setString(2, dateTo);
resultSet = preparedStatement.executeQuery(query);

执行时我得到以下异常

java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0).

请帮我解决

Answer 1

不要引用占位符。您需要将parent-mvn-project ├── .mvn │ ├── local-settings.xml │ └── maven.config ├── submodule-A (if any submodules) └── submodule-B (if any submodules) 更改为'?'。

所以查询就像这样

?