我有一个实体:
@Entity public class KnowledgeBase {
private Long id;
private String link;
private String content;
@Id
@SequenceGenerator(name = "knowledgebase_id_generator", sequenceName = "knowledgebase_id_sequence", allocationSize = 1)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "knowledgebase_id_generator")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getLink() {
return link;
}
public void setLink(String link) {
this.link = link;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
}
我有一个弹簧数据存储库
@Repository public interface KnowledgeBaseRepository
extends AbstractRepository<KnowledgeBase, Long> {
@Query(value = "SELECT c.id as id,c.link as link, c.content as content"
+ " from knowledgebase c where content=?1", nativeQuery = true)
List<KnowledgeBase> findRelevantRecords(String searchString);
}
请注意
where content=?1
只是一个示例,where 子句对于测试是不同的。
问题是如果我运行这个存储库方法,一切都很好,但是内容列包含大量文本,我希望它被延迟加载。如果我这样做,我会收到错误,即 Long:'' 的值是错误的。所以我的实体是:
@Lob @Basic(fetch = LAZY) String content;
如果我删除它,一切都会好起来的。如何防止每次都加载内容列并正确进行spring数据存储库搜索?