在MyBatis中实现localdatetime类型数据的批量操作,可以通过使用自定义的TypeHandler来处理LocalDateTime类型的数据。以下是实现步骤:
public class LocalDateTimeTypeHandler implements TypeHandler<LocalDateTime> {
@Override
public void setParameter(PreparedStatement ps, int i, LocalDateTime parameter, JdbcType jdbcType) throws SQLException {
if (parameter == null) {
ps.setNull(i, Types.TIMESTAMP);
} else {
ps.setTimestamp(i, Timestamp.valueOf(parameter));
}
}
@Override
public LocalDateTime getResult(ResultSet rs, String columnName) throws SQLException {
Timestamp timestamp = rs.getTimestamp(columnName);
return timestamp.toLocalDateTime();
}
@Override
public LocalDateTime getResult(ResultSet rs, int columnIndex) throws SQLException {
Timestamp timestamp = rs.getTimestamp(columnIndex);
return timestamp.toLocalDateTime();
}
@Override
public LocalDateTime getResult(CallableStatement cs, int columnIndex) throws SQLException {
Timestamp timestamp = cs.getTimestamp(columnIndex);
return timestamp.toLocalDateTime();
}
}
<typeHandlers>
<typeHandler handler="com.example.LocalDateTimeTypeHandler"/>
</typeHandlers>
public interface MyMapper {
void insertBatch(List<LocalDateTime> dataList);
}
<insert id="insertBatch" parameterType="java.util.List">
INSERT INTO my_table (my_column) VALUES
<foreach collection="list" item="item" separator=",">
#{item}
</foreach>
</insert>
通过以上步骤,就可以实现在MyBatis中对LocalDateTime类型数据进行批量操作了。