标签：model 针对 VID private 自动增长 cto uil pom 分布
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>ctgu.rxz</groupId> <artifactId>jpa-01</artifactId> <version>1.0-SNAPSHOT</version> <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的支持包 --> <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> <!-- Mysql and MariaDB --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.6</version> </dependency> </dependencies> </project>
创建maven工程，导入坐标
配置JPA的核心配置文件
<?xml version="1.0" encoding="UTF-8"?> <persistence xmlns="http://java.sun.com/xml/ns/persistence" version="2.0"> <!-- 持久化单元 name：持久化单元名称 可以自定义 transaction-type：事务管理的方式 JTA:分布式事务管理（针对：不同的表分布在不同的数据库中） RESOURCE_LOCAL：本地事务管理 --> <persistence-unit name="myJpa" transaction-type="RESOURCE_LOCAL"> <!--1.jpa的实现方式--> <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider> <properties> <!-- 2.配置数据库信息 用户名，javax.persistence.jdbc.user 密码， javax.persistence.jdbc.password 驱动， javax.persistence.jdbc.driver 数据库地址 javax.persistence.jdbc.url --> <property name="javax.persistence.jdbc.user" value="root"/> <property name="javax.persistence.jdbc.password" value="root"/> <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/> <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/mybatis?characterEncoding=utf-8"/> <!--3.配置jpa实现（hibernate）的配置信息 显示sql：hibernate.show_sql false/true 自动创建数据库表：hibernate.hbm2ddl.auto create：程序运行时创建数据库表（如果表已存在，先删除再创建） update：程序运行时创建（如果有表，不会创建表） none：不会创建表 --> <property name="hibernate.show_sql" value="true"/> <property name="hibernate.hbm2ddl.auto" value="update"/> </properties> </persistence-unit> </persistence>
import lombok.AllArgsConstructor; import lombok.Data; import lombok.NoArgsConstructor; import javax.persistence.*; import java.io.Serializable; @Data @AllArgsConstructor @NoArgsConstructor @Entity @Table(name="cst_customer") public class Customer implements Serializable{ /** * @ Id声明主键的设置 * @ GeneratedValue配置主键是生成策略（自动增长） * GenerationType.IDENTITY * @ Column(name = "cust_id")数据库中表中字段的名字 */ @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "cust_id") private Long custId; @Column(name = "cust_name") private String custName; @Column(name = "cust_source") private String custSource; @Column(name = "cust_industry") private String custIndustry; @Column(name = "cust_level") private String custLevel; @Column(name = "cust_address") private String custAddress; @Column(name = "cust_phone") private String custPhone; }
标签：model 针对 VID private 自动增长 cto uil pom 分布
原文地址：https://www.cnblogs.com/linyh99/p/14295175.html
