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jpa還有人用嗎 jpa多對(duì)多表映射應(yīng)該怎么寫?

jpa多對(duì)多表映射應(yīng)該怎么寫?多對(duì)多關(guān)系:(兩個(gè)類可以包含多個(gè)類,多對(duì)多有一個(gè)中間表)中間表沒有實(shí)體類,數(shù)據(jù)庫(kù)中只有@manytomany@jointable(name=“intermediate t

jpa多對(duì)多表映射應(yīng)該怎么寫?

多對(duì)多關(guān)系:(兩個(gè)類可以包含多個(gè)類,多對(duì)多有一個(gè)中間表)中間表沒有實(shí)體類,數(shù)據(jù)庫(kù)中只有@manytomany@jointable(name=“intermediate table name”,joinColumns=@joinColumn(name=“這個(gè)類的外鍵”,referencedcolumnname=“該類對(duì)應(yīng)的主鍵和外鍵)”,inversejoinColumns=@JoinColumn(name=“對(duì)方類外鍵”,referencedcolorname=“對(duì)方類和外鍵對(duì)應(yīng)的主鍵”)