spring入门(五) spring mvc+hibernate
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2024-01-11 09:00:46
核心是让SessionFactory由Spring管理 1.引入依赖 2.配置 springmvc-config.xml 重点是 dataSource和sessionFactory. 3.建立 *.hbm.xml和实体类Customer mapping:Customer.hbm.xml,model: ......
核心是让sessionfactory由spring管理
1.引入依赖
1 <!-- https://mvnrepository.com/artifact/org.springframework/spring-orm --> 2 <dependency> 3 <groupid>org.springframework</groupid> 4 <artifactid>spring-orm</artifactid> 5 <version>5.0.9.release</version> 6 </dependency> 7 <dependency> 8 <groupid>org.hibernate</groupid> 9 <artifactid>hibernate-core</artifactid> 10 <version>5.3.2.final</version> 11 </dependency> 12 <dependency> 13 <groupid>mysql</groupid> 14 <artifactid>mysql-connector-java</artifactid> 15 <version>5.1.4</version> 16 </dependency> 17 <dependency> 18 <groupid>org.hibernate</groupid> 19 <artifactid>hibernate-c3p0</artifactid> 20 <version>5.3.2.final</version> 21 </dependency>
2.配置 springmvc-config.xml 重点是 datasource和sessionfactory.
1 <bean name="datasource" class="com.mchange.v2.c3p0.combopooleddatasource"> 2 <property name="jdbcurl" value="jdbc:mysql://localhost:3306/test"></property> 3 <property name="driverclass" value="com.mysql.jdbc.driver"></property> 4 <property name="user" value="root"></property> 5 <property name="password" value="123456"></property> 6 </bean> 7 <bean name="sessionfactory" class="org.springframework.orm.hibernate5.localsessionfactorybean"> 8 <property name="datasource" ref="datasource"></property> 9 <property name="mappingdirectorylocations" value="classpath:mapping"></property> 10 <property name="hibernateproperties"> 11 <props> 12 <prop key="hibernate.dialect">org.hibernate.dialect.mysqldialect</prop> 13 <prop key="hibernate.c3p0.min_size">5</prop> <!--在连接池中可用数据库连接的最小数目--> 14 <prop key="hibernate.c3p0.max_size">30</prop> <!--在连接池中所有数据库连接的最大数目--> 15 <prop key="hibernate.c3p0.time_out">1800</prop> <!--设定数据库连接的超时时间--> 16 <prop key="hibernate.c3p0.max_statement">50</prop> <!--可以被缓存的preparedstatement的最大数目--> 17 <prop key="hibernate.show_sql">true</prop> 18 </props> 19 </property> 20 </bean>
3.建立 *.hbm.xml和实体类customer
mapping:customer.hbm.xml,
model:customer
4.测试
1 package com.ice.service; 2 3 import com.ice.model.customer; 4 import org.hibernate.session; 5 import org.hibernate.sessionfactory; 6 import org.hibernate.transaction; 7 import org.springframework.stereotype.component; 8 9 import javax.annotation.resource; 10 11 @component 12 public class customerservice { 13 14 @resource 15 private sessionfactory sessionfactory; 16 public void save(customer customer){ 17 session session=sessionfactory.opensession(); 18 //可以根据情况决定是否用事务 19 //transaction tx = session.begintransaction(); 20 session.save(customer); 21 //tx.commit(); 22 } 23 }
1 package com.ice.controller; 2 3 import com.ice.model.customer; 4 import com.ice.service.customerservice; 5 import org.springframework.beans.factory.annotation.autowired; 6 import org.springframework.stereotype.controller; 7 import org.springframework.web.bind.annotation.requestmapping; 8 import org.springframework.web.bind.annotation.responsebody; 9 10 @requestmapping("/") 11 @controller 12 public class homecontroller { 13 @autowired 14 private customerservice customerservice; 15 16 @requestmapping("/") 17 @responsebody 18 public string index(){ 19 customer customer = new customer(); 20 customer.setid(5); 21 customer.setname("hello!"); 22 customerservice.save(customer); 23 return "ok"; 24 } 25 }
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