Question

我正在尝试根据某些商家返回boolean。我在这里使用jdbctemplate。

public boolean dealExistsInInterval(String partyId) {
    String sql = "<Query>";
    boolean result = getJdbcTemplate().queryForObject(sql, new Object[] {partyId}, 
            new RowMapper<boolean>() { --> **Error here**
                public boolean mapRow(ResultSet rs, int rowNum) throws SQLException {
                    Date startDate = rs.getDate("BBORIGINDATE");
                    logger.info("Start date :"+startDate);
                    Date todayDate = new Date();
                    long diff = todayDate.getTime() - startDate.getTime();
                    Properties properties = BBUtil.getProperties();
                    int NO_OF_DAYS = 0;
                    if (properties != null) {
                        NO_OF_DAYS = Integer.parseInt(properties.getProperty("NO_OF_DAYS"));
                    }
                    logger.info("NO_OF_DAYS:"+NO_OF_DAYS);
                    logger.info("Number of days between today and latest deal :"+TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS));
                    return TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS) < NO_OF_DAYS ? true : false;
            }
    });
    return result;
}

编译时错误发生在new RowMapper<boolean>()。

P.S：这不是基于计数的查询。获得结果集后，我必须执行一些业务逻辑。

Answer 1

您无法定义基本数据类型的通用规范。您必须使用java.lang.Boolean包装类：

new RowMapper<Boolean>() {
    public Boolean mapRow(ResultSet rs, int rowNum) throws SQLException {
        // Code goes here...

在Spring jdbc中使用jdbctemplate选择查询返回布尔值

1 个答案: