在我的mysql表中有一个枚举字段' spe_gender'。
mysql> desc tbl_sswltdata_persons;
+-----------------+-----------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+-----------------+-----------------------+------+-----+---------+----------------+
| spe_id | bigint(20) unsigned | NO | PRI | NULL | auto_increment |
| spe_sen_id | bigint(20) unsigned | NO | MUL | NULL | |
| spe_gender | enum('male','female') | YES | | NULL | |
| spe_is_deceased | tinyint(1) | NO | | 0 | |
| spe_birth_place | varchar(255) | YES | | NULL | |
| spe_create_date | datetime | YES | | NULL | |
| spe_update_date | datetime | YES | | NULL | |
+-----------------+-----------------------+------+-----+---------+----------------+
7 rows in set (0.00 sec)
所以我创建了一个POJO类:
public class SswltdataPersons implements Serializable {
private static final long serialVersionUID = 1L;
private long spe_id;
private long spe_sen_id;
private String spe_gender;
private String spe_is_deceased;
private String spe_birth_place;
private String spe_create_date;
private String spe_update_date;
// .........
public String getSpe_gender() {
return spe_gender;
}
public void setSpe_gender(String spe_gender) {
this.spe_gender = spe_gender;
}
// ......
}
当我尝试将数据写入此表时,我收到异常
org.springframework.dao.DataIntegrityViolationException: PreparedStatementCallback; SQL
[INSERT INTO iwpro_imp.tbl_sswltdata_persons VALUES(?,?,?,?,?,?,?)];
Data truncated for column 'spe_gender' at row 1; nested exception is java.sql.BatchUpdateException: Data truncated for column 'spe_gender' at row 1
我认为问题是在Enum字段(在DB中)插入String值(通过java)。这是我的方法,我得到了例外。
@Transactional(value="transactionManager_iwpro_imp", rollbackFor = Exception.class)
public void saveAllPersons(final List<SswltdataPersons> list) {
String sql = "INSERT INTO iwpro_imp.tbl_sswltdata_persons VALUES(?,?,?,?,?,?,?)";
try{
jdbcTemplate.update("SET foreign_key_checks = 0");
List<List<SswltdataPersons>> batchLists = Lists.partition(list, batchSize);
for(final List<SswltdataPersons> batch : batchLists) {
BatchPreparedStatementSetter bpss = new BatchPreparedStatementSetter() {
@Override
public void setValues(PreparedStatement ps, int index) throws SQLException {
SswltdataPersons dataObject = batch.get(index);
ps.setLong(1, dataObject.getSpe_id());
ps.setLong(2, dataObject.getSpe_sen_id());
ps.setString(3, dataObject.getSpe_gender());
ps.setString(4, dataObject.getSpe_is_deceased());
ps.setString(5, dataObject.getSpe_birth_place());
ps.setString(6, dataObject.getSpe_create_date());
ps.setString(7, dataObject.getSpe_update_date());
}
@Override
public int getBatchSize() {
return batch.size();
}
};
jdbcTemplate.batchUpdate(sql, bpss);
}
jdbcTemplate.update("SET foreign_key_checks = 1");
}catch(Exception e){
TransactionAspectSupport.currentTransactionStatus().setRollbackOnly();
logger.error("\n\nUnexpected Exception:\n", e);
e.printStackTrace();
}
}
我不能在DB中插入此枚举值吗?
答案 0 :(得分:0)
在您的java代码中,将spe_gender声明为枚举类型
private Gender spe_gender
其中Gender是Enum类
public enum Gender {
MALE,
FEMALE
}
答案 1 :(得分:0)
为了回答这个问题,您必须举例说明实际插入的数据。
无论如何,关于你得到的例外,你很可能不会插入&#34;男性&#34;或者&#34;女性&#34;,因为它说&#34;数据被截断为列&#39; spe_gender&#39;在第1行和第34行;这意味着您插入的数据不同,实际上比允许的数据更大(如更多字符)。
另外,检查是否有实际插入枚举的方法而不是&#34; setString&#34;。 - &gt;编辑:它没有
答案 2 :(得分:0)
感谢Mick Mnemonic提出的建议。它奏效了。
替换
ps.setString(3, dataObject.getSpe_gender().isEmpty());
带
ps.setString(3, dataObject.getSpe_gender().isEmpty() ? null : dataObject.getSpe_gender());
为我工作。谢谢大家。