ibatis can not rereurn primary key for batch insert - mysql

Question

in my project , we use springmvc , spring and ibatis framework, the problem is :
in my dao code is :
#Override
public Integer insertAdzoneEnvInfoBatch(List<AdzoneEnvInfoDO> adzoneEnvInfoList) {
return executeInsertBatch("AdzoneEnvInfoDAO.insertAdzoneEnvInfo",adzoneEnvInfoList);
}
public Integer executeInsertBatch(final String sqlID, final List stList) {
Integer result = new Integer(-1);
if ((sqlID != null) && (stList != null) && !stList.isEmpty()) {
result = (Integer) getSqlMapClientTemplate().execute(
new SqlMapClientCallback() {
public Object doInSqlMapClient(SqlMapExecutor executor)
throws SQLException {
Integer result = new Integer(-1);
executor.startBatch();
for (int i = 0; i < stList.size(); i++) {
executor.insert(sqlID, stList.get(i));
}
result = new Integer(executor.executeBatch());
return result;
}
});
}
return result;
}
in my sqlmap file ,the sql is
<insert id="AdzoneEnvInfoDAO.insertAdzoneEnvInfo" parameterClass="adzoneEnvInfo">
insert into c_adzone_env_info(
url,adzoneid,pid,total_screen,screen_no,snapshot,adzone_num,ali_adzone_num,same_screen_num,same_screen_ali_num,
covered,ad_link,ad_snapshot,adzone_owner,
adzone_style,adzone_size,date_time,create_time,update_time
)
values(
#url#,#adzoneid#,#pid#,#totalScreen#,#screenNo#,#snapshot#,#adzoneNum#,#aliAdzoneNum#,
#sameScreenNum#,#sameScreenAliNum#,#covered#,#adLink#,#adSnapshot#,#adzoneOwner#,
#adzoneStyle#,#adzoneSize#,#dateTime# , now() , now()
)
<selectKey resultClass="long" keyProperty="id" type="post">
SELECT last_insert_id() as ID from c_adzone_env_info limit 1
</selectKey>
</insert>
and the dataobject has a property id respond to mysql autoincrement primary key
in my unittest ,code is
#Test
public void test(){
AdzoneEnvInfoDO adzoneEnvInfoDO = new AdzoneEnvInfoDO();
adzoneEnvInfoDO.setAdLink("adlink");
adzoneEnvInfoDO.setAdSnapshot("adsnapshot");
adzoneEnvInfoDO.setAdzoneid(99999999L);
adzoneEnvInfoDO.setAdzoneNum(434);
adzoneEnvInfoDO.setAdzoneOwner(11);
adzoneEnvInfoDO.setAdzoneSize("232下232");
adzoneEnvInfoDO.setAdzoneStyle(2);
adzoneEnvInfoDO.setAliAdzoneNum(334);
adzoneEnvInfoDO.setCovered(33);
adzoneEnvInfoDO.setUrl("sds");
adzoneEnvInfoDO.setUrlId(232323L);
adzoneEnvInfoDO.setTotalScreen(32423);
AdzoneEnvInfoDO adzoneEnvInfoDO1 = new AdzoneEnvInfoDO();
adzoneEnvInfoDO1.setAdLink("adlink");
adzoneEnvInfoDO1.setAdSnapshot("adsnapshot");
adzoneEnvInfoDO1.setAdzoneid(99999999L);
adzoneEnvInfoDO1.setAdzoneNum(434);
adzoneEnvInfoDO1.setAdzoneOwner(12);
adzoneEnvInfoDO1.setAdzoneSize("232下232");
adzoneEnvInfoDO1.setAdzoneStyle(22);
adzoneEnvInfoDO1.setAliAdzoneNum(334);
adzoneEnvInfoDO1.setCovered(33);
adzoneEnvInfoDO1.setUrl("sds");
adzoneEnvInfoDO1.setUrlId(232323L);
adzoneEnvInfoDO1.setTotalScreen(32423);
adzoneEnvInfoDAO.insertAdzoneEnvInfoBatch(Arrays.asList(adzoneEnvInfoDO, adzoneEnvInfoDO1));
System.out.println(adzoneEnvInfoDO.getId());
System.out.println(adzoneEnvInfoDO1.getId());
}
and in normal, the two object id should be parimary key in mysql ,but i found it is always null 0
and if i call a not batch method , it will be normal , the single data method is
public Long insertAdzoneEnvInfo(AdzoneEnvInfoDO adzoneEnvInfo) {
return (Long)executeInsert("AdzoneEnvInfoDAO.insertAdzoneEnvInfo",adzoneEnvInfo);
}

Answer 1

I got the same problem as you recently. I just read around the mybatis codes. This one is helpful to insert entities into MySQL. However it is a bit complicated because an ObjectWrapperFactory and a TypeHandler are registered in mybatis configuration file. See
https://github.com/jactive/java/tree/master/test/mybatis-demo
and the entry point
https://github.com/jactive/java/blob/master/test/mybatis-demo/java/com/jactive/mybatis/DaoTest.java