Spring + JDBC 组合开发集成步骤

1:配置数据源,如:

 

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       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/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd">
            
      <!--  配置数据源  -->
       
      <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="org.gjt.mm.mysql.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/itcast?useUnicode=true&characterEncoding=UTF-8"/>
        <property name="username" value="root"/>
        <property name="password" value="1"/>
         <!-- 连接池启动时的初始值 -->
         <property name="initialSize" value="1"/>
         <!-- 连接池的最大值 -->
         <property name="maxActive" value="500"/>
         <!-- 最大空闲值.当经过一个高峰时间后,连接池可以慢慢将已经用不到的连接慢慢释放一部分,一直减少到maxIdle为止 -->
         <property name="maxIdle" value="2"/>
         <!--  最小空闲值.当空闲的连接数少于阀值时,连接池就会预申请去一些连接,以免洪峰来时来不及申请 -->
         <property name="minIdle" value="1"/>
      </bean>
 
         
</beans>

  

这一步完成之后我们可以进行数据的增删改查操作啦。

注意使用到的Jar包

 Spring + JDBC 组合开发集成步骤

写实体bean, 以及servive 层, 然后再xml中配置bean 以及为bean配置数据源;

1
2
3
<bean class="cn.gbx.service.impl.PersonServiceImpl" id="personServiceImpl">
            <property name="dataSource" ref="dataSource"></property>
        </bean>

  

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
package cn.gbx.service.impl;
 
import java.util.List;
 
import javax.sql.DataSource;
 
import org.springframework.jdbc.core.JdbcTemplate;
 
import cn.gbx.bean.Person;
import cn.gbx.service.IPersonService;
<br>@Transactional
public class PersonServiceImpl implements IPersonService {
     
    private JdbcTemplate jdbcTemplate;
 
    //通过DI将数据源注入给jdbcTemplate
    public void setDataSource(DataSource dataSource) {
        this.jdbcTemplate = new JdbcTemplate(dataSource);
    }
 
    @Override
    public void save(Person person) {
        jdbcTemplate.update("insert into t_person(name) values(?)", new Object[] {person.getName()}, new int[] {java.sql.Types.VARCHAR});
 
    }
 
    @Override
    public void delte(Person person) {
        jdbcTemplate.update("delete from t_person where id = ?", new Object[] {person.getId()}, new int[] {java.sql.Types.INTEGER});
    }
 
    @Override
    public void update(Person person) {
 
        jdbcTemplate.update("update t_person set name = ? where id = ?", new Object[] {person.getName(), person.getId()},
         new int[]{java.sql.Types.VARCHAR, java.sql.Types.VARCHAR}     
        );
 
    }
 
    @Override
    public Person getPerson(Integer personid) {
        Person person = (Person)jdbcTemplate.queryForObject("select * from t_person where id = ?", new Object[] {personid},
                new int[] {java.sql.Types.INTEGER} , new PersonHandler());
        return person;
    }
 
    @Override
    public List<Person> getPersons() {
        List<Person> persons = null;
        persons = jdbcTemplate.query("select * from t_person", new PersonHandler());
        return persons;
    }
 
}

  

2:配置事务。配置事务时,需要在xml配置文件中引入用于声明事务的tx命名空间,事务的配置方式有两种:注解方式和基于XML配置方式。

在spring配置文件中引入用于声明事务的tx命名空间

 

采用注解方式配置事务:

采用注解方式

<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

    <property name="dataSource" ref="dataSource"/>

  </bean>

 <!– 采用@Transactional注解方式使用事务  -->

  <tx:annotation-driven transaction-manager="txManager"/>

 

@Service @Transactional

public class PersonServiceBean implements PersonService {

}

 

采用基于XML方式配置事务

1
2
3
4
5
6
7
8
9
10
11
12
13
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"/>
</bean>
<aop:config>
    <aop:pointcut id="transactionPointcut" expression="execution(* cn.itcast.service..*.*(..))"/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="transactionPointcut"/>
</aop:config>
<tx:advice id="txAdvice" transaction-manager="txManager">
      <tx:attributes>
        <tx:method name="get*" read-only="true" propagation="NOT_SUPPORTED"/>
        <tx:method name="*"/>
      </tx:attributes>
</tx:advice>

  

Spring + JDBC 组合开发集成步骤

上一篇:win 2012R2 系统优化记录


下一篇:JuAPI网关性能测试