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由于JPA是sun公司制定的API规范，所以我们不需要导入特别的JPA相关的jar包，只需要导入JPA的供给商的jar包。我们选择Hibernate作为JPA的供给商，所以需要导入Hibernate的相关jar包。

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ORM项目:

省略

<properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.hibernate.version>5.0.7.Final</project.hibernate.version> </properties> <dependencies> <!-- junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!-- hibernate对jpa的撑持包 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>${project.hibernate.version}</version> </dependency> <!-- c3p0 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-c3p0</artifactId> <version>${project.hibernate.version}</version> </dependency> <!-- log日志 --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.18</version> <scope>provided</scope> </dependency> <!-- Mysql--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.47</version> </dependency> </dependencies>

/*创建客户表*/ CREATE TABLE customer ( cid bigint(32) NOT NULL AUTO_INCREMENT COMMENT ‘客户编号(主键)‘, cname varchar(32) NOT NULL COMMENT ‘客户名称(公司名称)‘, source varchar(32) DEFAULT NULL COMMENT ‘客户信息来源‘, industry varchar(32) DEFAULT NULL COMMENT ‘客户所属行业‘, level varchar(32) DEFAULT NULL COMMENT ‘客户级别‘, address varchar(128) DEFAULT NULL COMMENT ‘客户联系地点‘, phone varchar(64) DEFAULT NULL COMMENT ‘客户联系电话‘, PRIMARY KEY (`cid`) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;