Question

表格列

  `start_time` TIMESTAMP NOT NULL COMMENT '秒杀结束时间',
  `end_time` TIMESTAMP NOT NULL COMMENT '秒杀结束时间',
  `create_time` TIMESTAMP NOT NULL DEFAULT current_timestamp COMMENT '创建时间',

实体（com.hxy.entity.Seckill）

中有多个属性

实体

private Date   start_time;
private Date   end_time;
private Date   create_time;

映射

<select id="queryById" resultType="com.hxy.entity.Seckill" parameterType="long">
    SELECT seckill.seckill_id,seckill.name,seckill.number,seckill.start_time,seckill.end_time,seckill.create_time
    FROM
    seckill.seckill
    WHERE seckill_id=#{seckillId}
</select>

DAO

 Seckill queryById(long seckillid);

服务

 public Exposer exportSecKillUrl(final long seckillid) {
    Seckill seckill = seckillDao.queryById(seckillid);

    logger.info(seckill.toString());
}

测试

    @Test
public void getById() throws Exception {
    long    id      = 1000;
    Seckill seckill = secKillService.getById(id);

    logger.info("seckill={}", seckill);
}

日志

  19:08:34.579 [main] DEBUG o.m.s.t.SpringManagedTransaction -JDBC Connection [com.mchange.v2.c3p0.impl.NewProxyConnection@5ef5c734 [wrapping: com.mysql.jdbc.JDBC4Connection@d771cc9]] will not be managed by Spring
  19:08:34.586 [main] DEBUG com.hxy.dao.SeckillDao.queryById -==>  Preparing: SELECT seckill.seckill_id,seckill.name,seckill.number,seckill.start_time,seckill.end_time,seckill.create_time FROM seckill.seckill WHERE seckill_id=? 
  19:08:34.620 [main] DEBUG com.hxy.dao.SeckillDao.queryById -==> Parameters: 1000(Long)
  19:08:34.709 [main] DEBUG com.hxy.dao.SeckillDao.queryById -<==      Total: 1
  19:08:34.713 [main] DEBUG org.mybatis.spring.SqlSessionUtils -Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@48793bef]
  19:08:34.715 [main] INFO  c.hxy.service.impl.SecKilServiceimpl -Seckill{seckillid=1000, name='1000元秒杀ipone6', number=100, start_time=null, end_time=null, create_time=null}

  java.lang.NullPointerException
at com.hxy.service.impl.SecKilServiceimpl.exportSecKillUrl(SecKilServiceimpl.java:126)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)

SQL Directly

  SELECT seckill.seckill_id,seckill.name,seckill.number,seckill.start_time,seckill.end_time,seckill.create_time
  FROM
  seckill.seckill
  WHERE seckill_id=1000;

结果

                               start_time             end_time         create_time
  1000  1000元秒杀ipone6   100 2015-11-01 00:00:00 2015-11-02 00:00:00 2016-06-11 22:05:07

java.util.Date.parse中的java.lang.IllegalArgumentException

0 个答案: