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                        /后端開發
                        
                            /Java
                        
                        /Hibernate初探之一對多映射

我想問下，一對多時，一方set標簽里的inverse屬性設為faise時，一方和多方都可以控制吧？

????????????????Country?country?=?new?Country(2,"japan");
		Province?province1?=?new?Province(3,"j1");
		Province?province2?=?new?Province(4,"j2");
		
		//country.getProvinces().add(province1);
		//country.getProvinces().add(province2);
		province1.setCountry(country);
		province2.setCountry(country);
		
		session.save(country);
		session.save(province1);
		session.save(province2);

對應結果

Hibernate:?insert?into?test.country?(cname,?cid)?values?(?,??)
Hibernate:?insert?into?test.province?(pname,?cid,?pid)?values?(?,??,??)
Hibernate:?insert?into?test.province?(pname,?cid,?pid)?values?(?,??,??)

????????????????Country?country?=?new?Country(2,"japan");
		Province?province1?=?new?Province(3,"j1");
		Province?province2?=?new?Province(4,"j2");
		
		country.getProvinces().add(province1);
		country.getProvinces().add(province2);
		//province1.setCountry(country);
		//province2.setCountry(country);
		
		session.save(country);
		session.save(province1);
		session.save(province2);

對應結果

Hibernate:?insert?into?test.country?(cname,?cid)?values?(?,??)
Hibernate:?insert?into?test.province?(pname,?cid,?pid)?values?(?,??,??)
Hibernate:?insert?into?test.province?(pname,?cid,?pid)?values?(?,??,??)
Hibernate:?update?test.province?set?cid=??where?pid=?
Hibernate:?update?test.province?set?cid=??where?pid=?

數據庫里結果都是