进行SQL / JPQL查询以选择与两个关键字都匹配的所有主题

Question

挑战： 我想创建一个查询，该查询选择与关键字 ID的“ Java”和“ sql” （ ID为 1的主题与关键字 “ Java”和“ Sql ”都匹配。

我已经实现了两个简单的实体 主题和关键字。它们具有双向的ManyToMany关系：

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这是结构表。

这是@Entity @Table(name = "Topic") public class Topic implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "topicID") private Long id; @Column(name = "topicTitle") private String title = ""; @ManyToMany @JoinTable(name = "Join_Topic_Keyword", joinColumns = @JoinColumn(name = "Topic_ID"), inverseJoinColumns = @JoinColumn(name = "Keyword_ID")) private Set<Keyword> keywords; } @Entity @Table(name = "Keyword") public class Keyword implements Serializable { private static final long serialVersionUID = 1L; @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "keywordID") private String id; @ManyToMany(mappedBy = "keywords") private Set<Topic> topics; }

的结果