我使用Spring JDBC的classifiedAd对象存储到我的MariaDB的数据库,如下所示:春JDBC的MySQL/MariaDB的数据被截断为列“日期”第1行
public void insert(ClassifiedAd classifiedAd){
this.jdbcTemplate.update(new PreparedStatementCreator(){
@Override
public PreparedStatement createPreparedStatement(Connection connection) throws SQLException {
PreparedStatement ps = connection.prepareStatement(INSERT_SQL, Statement.RETURN_GENERATED_KEYS);
...
ps.setTimestamp(6, new Timestamp(classifiedAd.getStartDate().getTimeInMillis()));
...
return ps;
}
}, keyHolder);
的classifiedAd对象有一个字段private Calendar startDate
我将其转换为java.sql.Timestamp
,然后将其映射到数据库中的相应列start_date datetime null,
。
但是,当插入,我得到以下警告:
Dec 13, 2016 10:59:10 AM com.mchange.v2.c3p0.SQLWarnings logAndClearWarnings
INFO: Data truncated for column 'start_date' at row 1
java.sql.SQLWarning: Data truncated for column 'start_date' at row 1
at org.mariadb.jdbc.MariaDbConnection.getWarnings(MariaDbConnection.java:833)
at com.mchange.v2.c3p0.impl.NewProxyConnection.getWarnings(NewProxyConnection.java:907)
at com.mchange.v2.c3p0.SQLWarnings.logAndClearWarnings(SQLWarnings.java:42)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.refurbishResourceOnCheckin(C3P0PooledConnectionPool.java:285)
at com.mchange.v2.resourcepool.BasicResourcePool.attemptRefurbishResourceOnCheckin(BasicResourcePool.java:1606)
at com.mchange.v2.resourcepool.BasicResourcePool.access$200(BasicResourcePool.java:32)
at com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask.run(BasicResourcePool.java:1228)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
我真的因为它规定here,它是正确的类型使用不明白为什么时间戳被截断。请帮忙吗?
编辑
这些是我得到的前值和插入后:
初始值:
dao.insert(classifiedAd);
classifiedAd = dao.select(classifiedAd.getId());
====> 27/7/2016 0:0:0
:
System.out.println(BankCardDAOTest.expiration_date.get(Calendar.DAY_OF_MONTH) + "/"
+ (classifiedAd.getStartDate.get(Calendar.MONTH) + 1) + "/"
+ classifiedAd.getStartDate.get(Calendar.YEAR) + " "
+ classifiedAd.getStartDate.get(Calendar.HOUR) + ":"
+ classifiedAd.getStartDate.get(Calendar.MINUTE) + ":"
+ classifiedAd.getStartDate.get(Calendar.SECOND));
====> 27/7/2016 4:3:54
插入和检索对象后
请帮忙吗?
,我能想到的它的唯一的事情就是日期格式问题...生成存储在您的日期如何在你的mariadb表上......你可以发布该字段的select语句的结果吗? – Hackerman
在MariaDB服务器上启用常规日志,运行您的代码,您将马上看到它发送的内容以及为什么会生成警告。 – elenst