调用xml文件的bean

AcTest.class

package com.zyz.db;

import com.zyz.dao.PersonDao;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;
import org.springframework.jdbc.datasource.DriverManagerDataSource;

/**
 * Created by zyz on 2016-8-5.
 */
public class AcTest {
    public static void main(String[] args){
        
//        方法1：使用FileSystemXmlApplicationContext
        ApplicationContext ac1=new FileSystemXmlApplicationContext("src/main/webapp/WEB-INF/applicationContext-jdbc.xml");
        DriverManagerDataSource dataSource=(DriverManagerDataSource) ac1.getBean("dataSource");
        System.out.println(dataSource.getUsername());

//        方法2：使用ClassPathXmlApplicationContext
        ApplicationContext ac2=new ClassPathXmlApplicationContext("beans.xml");
        PersonDao personDao=(PersonDao)ac2.getBean("personDao");

　　　　　System.out.println(personDao.getVersion());

　　　　　System.out.println(personDao.getPersons().get(0).getName()); } }

 方法1：只要指定xml文件的在项目中的相对位置

 方法2：从classpath位置读xml文件，即编译后class文件存放的位置.
可以先将xml文件放入resources文件夹,然后将resources文件夹加入到classpath，在idea中：
"File"->"Project Structure"，出现对话框，添加resources文件夹，编译运行后，系统会将xml文件复制到classes文件夹中

 

applicationContext-jdbc.xml

<?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:jdbc="http://www.springframework.org/schema/jdbc"
           xsi:schemaLocation="http://www.springframework.org/schema/beans
          http://www.springframework.org/schema/beans/spring-beans.xsd
          http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
    ">

        <!--配置mysql数据库-->
        <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName">
                <value>com.mysql.jdbc.Driver</value>
            </property>
            <property name="url">
                <value>jdbc:mysql://localhost:3306/school?useUnicode=true&amp;characterEncoding=UTF-8</value>
            </property>
            <property name="username">
                <value>root</value>
            </property>
            <property name="password">
                <value>root</value>
            </property>
        </bean>

        <!--jdbcTemplate和数据库关联-->
        <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
            <property name = "dataSource" ref="dataSource"/>
        </bean>
    </beans>

 

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="personDao" class="com.zyz.dao.PersonDao">
        <property name="version">
            <value>3.85</value>
        </property>
    </bean>
</beans>