Eclipse+Maven下Spring与Hibernate整合简单实例（小白入门）

Maven管理Spring与Hibernate整合简单实例

源码地址：https://github.com/1663727338/SSH-Study

1.创建Maven工程



如下图选择quickstart



输入maven工程项目名称



2.创建工程文件夹src/main/resources,用来存放spring、hibernate所需的配置文件



3.在pom.xml中配置spring依赖

<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>com.lgd.study</groupId>
<artifactId>springhibernatetest</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>

<name>springhibernatetest</name>
<url>http://maven.apache.org</url>

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring.version>4.3.0.RELEASE</spring.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>

<!-- spring依赖项 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
</project>

4.Mysql建立user表

id为主键，拥有auto_increment属性



5.创建数据库表对应的实体类user



User.java文件内容如下

package com.lgd.study.springhibernatetest;
public class User {
private Integer id;
private String name;
private Integer age;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
}

6.配置hibernate依赖

pom.xml中添加

<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>

7.配置实体类与数据库表的映射文件user.hbm.xml



user.hbm.xmlweb文件内容如下

<?xml version="1.0" encoding="utf-8"?>

<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="com.lgd.study.springhibernatetest.App">
<class name="User" table="user">
<id name="id" column="id" type="java.lang.Integer">
<generator class="native"/>
</id>

<property name="name" column="name" type="java.lang.String"></property>
<property name="age" column="age"  type="java.lang.Integer"></property>
</class>

</hibernate-mapping>

8.Mysql数据源配置

pom.xml增加c3p0、mysql的依赖

<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>${hibernate.version}</version>
</dependency>

<!-- mysql 连接依赖 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>

resources文件夹下新建数据库配置文件datasource.properties



文件内容如下，可根据具体环境自行配置

validationQuery=SELECT 1

mysql.driverClassName=com.mysql.jdbc.Driver
mysql.url=jdbc:mysql://localhost:3306/sshdb
mysql.username=lgd
mysql.password=P@ssw0rd

创建beans.xml文件并添加datasource的配置



文件内容如下

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd ">

<!-- 引入属性文件 -->
<context:property-placeholder location="datasource.properties" />

<!-- 使用C3P0数据源，MySQL数据库 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<!-- MySQL5 -->
<property name="driverClass" value="${mysql.driverClassName}"></property>
<property name="jdbcUrl" value="${mysql.url}"></property>
<property name="user" value="${mysql.username}"></property>
<property name="password" value="${mysql.password}"></property>
<property name="maxPoolSize" value="40"></property>
<property name="minPoolSize" value="1"></property>
<property name="initialPoolSize" value="1"></property>
<property name="maxIdleTime" value="20"></property>
</bean>
</beans>

9.SessionFactory的配置

datasource.properties中增加如下配置

hibernate.dialect=org.hibernate.dialect.MySQLDialect

hibernate.hbm2ddl.auto=update

hibernate.show_sql=true

hibernate.format_sql=false

beans.xml中添加sessionFactory的配置

<!-- session工厂 -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mappingResources">
<list>
<value>/user.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
</props>
</property>
</bean>

10.测试类App实现



App.Java文件内容如下

package com.lgd.study.springhibernatetest;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App {
private static SessionFactory sessionFactory;

public static void main(String[] args) {

//加载bean
new ClassPathXmlApplicationContext("beans.xml");

//session
Session session = sessionFactory.openSession();
User user = new User();
user.setName("lgd");
user.setAge(22);
session.save(user);

System.out.println("AppMain is done.");

}

public static SessionFactory getSessionFactory() {
return sessionFactory;
}

public static void setSessionFactory(SessionFactory sessionFactory) {
App.sessionFactory = sessionFactory;
}
}

在beans.xml中添加App对应bean

<!-- -->
<bean id="app" class="com.lgd.study.springhibernatetest.App" lazy-init="false">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>

11测试

运行App.java，在Mysql中可以看到有一条数据被添加成功



源码github地址见文开头