java PreparedStatement语法问题

Question

我有以下代码

public void savePosition(String positionName) {
    String sqlStatement = "INSERT INTO positions (name) VALUES (?)";
    try (
            Connection connection = getConnection();
            PreparedStatement preparedStatement = connection.prepareStatement(sqlStatement);
            preparedStatement.setString(1, positionName);
            preparedStatement.executeUpdate();
            ){

    } catch (SQLException e) {
        e.printStackTrace();
    }
}

并且附近有语法错误; .在setString和executeUpdate行中.

对于这一行

preparedStatement.setString(1, positionName);

我有

令牌".",@ expected上的语法错误

令牌","的语法错误,.预期

令牌";"上的语法错误,删除此令牌

我看不出它有什么问题.

Answer 1

您已将try语句的整个主体放入仅用于初始化可关闭资源的部分.你要:

// This part is initializing resources
try (Connection connection = getConnection();
     PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
    // This part is just statements
    preparedStatement.setString(1, positionName);
    preparedStatement.executeUpdate();
} catch (SQLException e) {
    e.printStackTrace();
}