我有3个表 - Rasskazi(主表),CatsRelations(表Rasskazi和表CatsNames之间的关系)和CatsNames。
CREATE TABLE `rasskazi` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`rasskazName` varchar(777) DEFAULT NULL,
`rasskazText` text,
`rasskazDataDobav` datetime DEFAULT NULL,
`rasskazRazmer` float DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8;
CREATE TABLE `catsRelations` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`rasskazId` int(11) DEFAULT NULL,
`catId` int(11) DEFAULT NULL,
PRIMARY KEY (`id`),
KEY `rasskazIdFK_idx` (`rasskazId`),
KEY `catIdFK_idx` (`catId`),
CONSTRAINT `z1` FOREIGN KEY (`rasskazId`) REFERENCES `rasskazi` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION,
CONSTRAINT `z2` FOREIGN KEY (`catId`) REFERENCES `catsNames` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `catsNames` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`catName` varchar(777) DEFAULT NULL,
`oldId` varchar(100) DEFAULT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `oldId_UNIQUE` (`oldId`)
) ENGINE=InnoDB AUTO_INCREMENT=39 DEFAULT CHARSET=utf8;
Hibernate对象是:
Rasskazi.hbm.xml [http://pastebin.com/CF4D47M1][1]
Rasskazi.java [http://pastebin.com/29phnEEd][2]
CatsRelations.hbm.xml [http://pastebin.com/MqnXuAQ9][3]
CatsRelations.java [http://pastebin.com/BDqTKqeD][4]
CatsNames.hbm.xml [http://pastebin.com/9YtVkCjD][5]
CatsNames.java [http://pastebin.com/uwpWcLha][6]
打包到zip的所有文件都可以下载here
我尝试按代码保存对象
Rasskazi r = new Rasskazi();
r.setRasskazName(storyName);
Set<CatsRelations> catsRelationses = new HashSet<>();
Elements katsInfo = doc.select("a[href*=ras.shtml?kat]");
for (Element kat : katsInfo) {
String katId = kat.attr("href");
CatsNames cat = mainBean.getCat(katId); // Here I got CatsNames from my bean, from table named CatsNames
CatsRelations catsRelations = new CatsRelations();
catsRelations.setCatsNames(cat);
catsRelations.setRasskazi(r);
catsRelationses.add(catsRelations);
}
r.setCatsRelationses(catsRelationses);
r.setRasskazText(textStr);
Session session = sessionFactory.getCurrentSession();
session.save(r);
但是Hibernate只在名为rasskazi的表中保存记录:
Hibernate:
insert
into
grabberRasskazov.rasskazi
(rasskazName, rasskazText, rasskazDataDobav, rasskazRazmer)
values
(?, ?, ?, ?)
并且它不会将任何数据保存到名为CatsNames的表中。 为什么它没有将数据保存到表CatsNames,为什么它忽略了代码
CatsRelations catsRelations = new CatsRelations();
catsRelations.setCatsNames(cat);
catsRelations.setRasskazi(r);
catsRelationses.add(catsRelations);
}
r.setCatsRelationses(catsRelationses);
答案 0 :(得分:2)
问题是您没有从Parent到Children实体级联:
<set name="children" inverse="true" cascade="all">
<key column="parent_id"/>
<one-to-many class="Child"/>
</set>
确保将级联添加到所有一对多关联。