Hello Spring（4）Dao

文件结构

user.Bean.java

package user;

public class Bean {
    
    private String name;
    private String passwork;
    
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPasswork() {
        return passwork;
    }
    public void setPasswork(String passwork) {
        this.passwork = passwork;
    }
    
    

}

user.Dao.java

package user;

public interface Dao {
    
    public void register( Bean bean );

}

user.DaoImpl.java

package user;

import java.sql.Connection;

import test.ConnectionUtility;

public class DaoImpl implements Dao {

    private ConnectionUtility connectionUtility;
    
    
    
    public ConnectionUtility getConnectionUtility() {
        return connectionUtility;
    }



    public void setConnectionUtility(ConnectionUtility connectionUtility) {
        this.connectionUtility = connectionUtility;
    }



    public void register( Bean bean ){
        
        Connection conn = connectionUtility.getConnection();
        System.out.println(conn);
        System.out.println("哈哈，天空真蓝，世界平静了！");
        
    }
    
}

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "" "http://www.springframework.org/dtd/spring-beans.dtd" >
<beans>

    <bean id="connectionUtility" class="test.ConnectionUtility">
        <property name="userName" value="Livon"></property>
        <property name="password" value="Livon_2012"></property>
        <property name="dbUrl" value="jdbc:mysql://192.168.1.136:3306/db_epolice"></property>
        <property name="dbDriver" value="com.mysql.jdbc.Driver"></property>
    </bean>

    <bean id="userDao" class="user.DaoImpl">
        <property name="connectionUtility" ref="connectionUtility"></property>
    </bean>

</beans>

test.Tester.java

package test;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;

import user.Dao;

@SuppressWarnings("deprecation")
public class Tester {
    
    public static void main( String[] args){
        
        Resource r = new ClassPathResource("beans.xml");
        BeanFactory factory = new XmlBeanFactory(r);
        
        user.Dao dao = (Dao) factory.getBean("userDao");
        dao.register( new user.Bean());
        
    }

}

result