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副标题:JPA主键生成策略、日期_枚举等字段类型的JPA映射、大数据字段映射与字段延迟加载//Person类packagecn.itcast.bean;importjava.util.Date;importjavax.persistence.Basic;importjavax.persistence.Column;importjavax.persistence.Entity;importjavax.persistence.EnumType;importjavax.persistence.Enumerated;importjavax.persistence.FetchType;importjav 阅读全文
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配置模板<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> &l 阅读全文
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