Spring與mybatis簡單整合例子

相關jar(其中有些不必須有，由於是從另外項目複製過來的，懶得刪)：

pojo:

package com.bjsxt.pojo;

public class Flower {
	private int id;
	private String name;
	private double price;
	private String production;
	public Flower(int id, String name, double price, String production) {
		super();
		this.id = id;
		this.name = name;
		this.price = price;
		this.production = production;
	}
	public Flower() {
		super();
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public double getPrice() {
		return price;
	}
	public void setPrice(double price) {
		this.price = price;
	}
	public String getProduction() {
		return production;
	}
	public void setProduction(String production) {
		this.production = production;
	}
	@Override
	public String toString() {
		return "Flower [id=" + id + ", name=" + name + ", price=" + price + ", production=" + production + "]";
	}
}

編寫工具類，獲得bean對象。

package com.tool;
 
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
 
public class AppContextCreate {
 
    private static ApplicationContext appContext;
    
    static{
        appContext=new ClassPathXmlApplicationContext("applicationContext.xml");
    }
    
    public static <T>T getBean(Class<T> t){
        return appContext.getBean(t);
    }
}

mapper：

package mapper;

import java.util.List;

import com.bjsxt.pojo.Flower;

public interface FlowerMapper {
    
    public List<Flower> listFlower();

}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
  PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- namesapce:理解成實現類的全路徑(包名+類名) -->
<mapper namespace="mapper.FlowerMapper" >
    <cache readOnly="true"></cache>
	<select id="listFlower" resultType="com.bjsxt.pojo.Flower" >
		select * from flower
	</select>
</mapper>

applicationContext：

<?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="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
         <property name="driverClassName"  value="com.mysql.jdbc.Driver"></property>
         <property name="url" value="jdbc:mysql://localhost:3306/ssm"></property>
         <property name="username" value="root"></property>
         <property name="password" value="123456"></property>
    </bean>
    <!-- spring幫助創建sqlsession -->
    <bean id="factory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- sping創建掃描 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="basePackage" value="mapper"></property>
         <property name="sqlSessionFactory" ref="factory"></property>
    </bean>
</beans>
 

logo4j.propeties:

# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# Console output...
#log4j.com.bjsxt=DEBUG
log4j.appender.stdout=org.apache.log4j.ConsoleAppender 
# if you use pattern layout ,you must use ConversionPattern to format data
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

Test:

package com.bjsxt.test;


import java.io.IOException;
import java.io.InputStream;
import java.util.List;

import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.bjsxt.pojo.Flower;
import com.tool.AppContextCreate;

import mapper.FlowerMapper;
import sun.awt.AppContext;

public class Test {
	public static void main(String[] args) throws IOException {
	    
	    FlowerMapper bean = AppContextCreate.getBean(FlowerMapper.class);
        List<Flower> listFlower = bean.listFlower();
        for (Flower flower : listFlower) {
            System.out.println(flower);
            
        }
	}
}

 

結果(數據內容不必太在意):

如果只是普通的java項目，是不需要web.xml的配置也是能完成的。如果是web項目，那麼需要在web.xml中進行sping的配置。不妥之處，請賜教。