目标:将Student实体对象加入数据库
1、首先需要下载三个东西:hibernate,slf4j,mysql。
2、分别取他们的包导入新建的项目中,我这里的版本是:hibernate-release-5.2.10里面lib目录下的required中的全部文件 slf4j-1.7.25下的受slf4j-nop-1.7.25.jar mysql的mysql-connector-java-5.1.42-bin.jar
3、在src下配置hibernate.cfg.xml(建议直接去文档复制然后改)
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<? xml version = '1.0' encoding = 'utf-8' ?> <!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"> < hibernate-configuration > < session-factory > <!-- Database connection settings --> < property name = "connection.driver_class" >com.mysql.jdbc.Driver</ property > < property name = "connection.url" >jdbc:mysql://localhost/text02</ property > < property name = "connection.username" >root</ property > < property name = "connection.password" >6530033197</ property > <!-- JDBC connection pool (use the built-in) --> <!-- <property name="connection.pool_size">1</property> --> <!-- SQL dialect --> < property name = "dialect" >org.hibernate.dialect.MySQLDialect</ property > <!-- Enable Hibernate's automatic session context management --> <!-- <property name="current_session_context_class">thread</property> --> <!-- Disable the second-level cache --> < property name = "cache.provider_class" >org.hibernate.cache.internal.NoCacheProvider</ property > <!-- Echo all executed SQL to stdout --> < property name = "show_sql" >true</ property > <!-- Drop and re-create the database schema on startup --> <!-- <property name="hbm2ddl.auto">update</property> --> < mapping resource = "student/Student.hbm.xml" /> </ session-factory > </ hibernate-configuration > |
4、在mysql中创建student表,字段:id age name
5、创建自己的实体类在src下建包student,然后建Class:Student.java
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package student; public class Student { private int id; private int age; private String name; public int getId() { return id; } public void setId( int id) { this .id = id; } public int getAge() { return age; } public void setAge( int age) { this .age = age; } public String getName() { return name; } public void setName(String name) { this .name = name; } public Student( int id, int age, String name) { super (); this .id = id; this .age = age; this .name = name; } public Student() { // TODO Auto-generated constructor stub } } |
6、在对应package即student下配置文件:Student.hbm.xml
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<? xml version = "1.0" ?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd"> < hibernate-mapping package = "student" > < class name = "Student" table = "student" > < id name = "id" column = "id" > </ id > < property name = "name" type = "string" column = "name" /> < property name = "age" type = "int" column = "age" /> </ class > </ hibernate-mapping > |
7、创建测试类:StudentText.java
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package student; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; public class StudentText { public static void main(String[] args) { Student stu = new Student(); stu.setId( 4 ); stu.setName( "小明" ); stu.setAge( 12 ); Configuration con = new Configuration(); SessionFactory sf = con.configure().buildSessionFactory(); Session s = sf.openSession(); s.beginTransaction(); s.save(stu); s.getTransaction().commit(); s.close(); sf.close(); } } |
输出结果,完成:
以上这篇hibernate5.2的基本配置方法(详解)就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。