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hibernate5.2的基本配置方法(详解)

2019年07月22日  | 移动技术网IT编程  | 我要评论

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)

<?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

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

<?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

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移动技术网。

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