springmvc+spring+mybatis整合

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由于进行框架的整合，所以原来好些就不需要，例如mybatis的总配置文件。

框架结构：

java

     com.jd.jr.contorllor

                ActivityControllor.java

      com.jd.jr.dao

                UserMapper.java

                UserMapper.xml

      com.jd.jr.po

                UserPo.java

       com.jd.jr.service

               GetOrder.java

resources

      applicationContext-dao.xml

      log4j.properties

      spring-config.xml

      springmvc-servlet.xml

webapp

    WEB-INF

           web.xml

各个文件的说明：

ActivityControllor：是springMVC的处理器

package com.jd.jr.controllor;

import com.jd.jr.service.GetOrder;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
/**
 * Created by guojiangjiang on 2015/7/23.
 */
@Controller
public class ActivityControllor {
    Logger logger = Logger.getLogger(ActivityControllor.class);
    @Autowired
    public GetOrder getOrder;
   @RequestMapping("/hello")
    public ModelAndView say(){
       logger.info("kaishi le...");
       System.out.println("controllor...");
       getOrder.getLotteryDrawMapper();
       ModelAndView mv = new ModelAndView();
       return mv;
    }

    public GetOrder getOrder() {
        return getOrder;
    }

    public void setOrder(GetOrder order) {
        this.getOrder = order;
    }
}

UserMapper.java是dao层的接口：

package com.jd.jr.dao;
import com.jd.jr.po.UserPo;

public interface UserMapper {

  public UserPo findBy(String pin);

}

在UserMapper的同目录下建立同名的UserMapper.xml(映射文件)

<?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">
<!--namespace就是接口的全类名-->
<mapper namespace="com.jd.jr.dao.UserMapper">
    <select id="findBy"  parameterType="java.lang.String" resultType="com.jd.jr.po.UserPo">
         SELECT * FROM record WHERE pin =#{pin};
        </select>
</mapper> 

userPo类

package com.jd.jr.po;
import org.springframework.stereotype.Component;

@Component
public class UserPo {
    private int id;
    private String pin;

    @Override
    public String toString() {
        return "LotteryDrawRecord{" +
                "id=" + id +
                ", pin='" + pin + '\'' +
                '}';
    }

    public UserPo() {
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getPin() {
        return pin;
    }

    public void setPin(String pin) {
        this.pin = pin;
    }

    public UserPo(int id, String pin) {
        this.id = id;
        this.pin = pin;
    }
}

service层：

package com.jd.jr.service;
import com.jd.jr.dao.UserMapper;
import com.jd.jr.po.UserPo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * Created by guojiangjiang on 2015/7/24.
 */
@Service
public class GetOrder {

    @Autowired
    public UserMapper userMapper ;

    public void getLotteryDrawMapper(){
        System.out.println("contorllor invoke service ...");
        System.out.println(userMapper.findBy("a"));
    }

    public UserMapper getUserMapper() {
        return userMapper;
    }

    public void setUserMapper(UserMapper userMapper) {
        this.userMapper = userMapper;
    }
}

下面就是配置文件：

首先配置web.xml，在web.xml中需要配置springMVC的dispatcherServlet,由于整合了spring,需要在web容器启动的时候进行加载spring容器。配置如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
         version="2.5">
    <display-name>jd-flow-bid-web</display-name>
    <!--配置web容器启动时加载spring容器，徐璈指定spring容器的位置classpath:spring-config.xml-->
     <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-config.xml</param-value>
     </context-param>
     <!--配置监听器监听spring容器-->
     <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
     </listener>

    <!--配置springMVC的dispatcherServlet-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

  

配置spring的核心容器spring-config.xml，这里先配置一个空的spring容器，然后在配置一个专门用于整合mybatis的容器，最后将spring-mybatis容器加载到主容器中（web.xml中配置的就是主容器）。

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
		http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
		http://www.springframework.org/schema/context
		http://www.springframework.org/schema/context/spring-context-3.2.xsd
		http://www.springframework.org/schema/aop
		http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
		http://www.springframework.org/schema/tx
		http://www.springframework.org/schema/tx/spring-tx-3.2.xsd ">

     <!--自动扫描组件，拍除cotrollor在外-->
	<context:component-scan base-package="com.jd.jr.*">
    	  <context:exclude-filter type="annotation"
    				expression="org.springframework.stereotype.Controller" /><!-- 排除注解为controller的类型 -->
    </context:component-scan>

    <import resource="applicationContext-dao.xml" />

</beans>

配置和mybatis整合的容器：applicationContext-dao.xml

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
		http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
		http://www.springframework.org/schema/mvc 
		http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd 
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-3.2.xsd 
		http://www.springframework.org/schema/aop 
		http://www.springframework.org/schema/aop/spring-aop-3.2.xsd 
		http://www.springframework.org/schema/tx 
		http://www.springframework.org/schema/tx/spring-tx-3.2.xsd "
		default-autowire="byName"
		>
	<!-- 配置数据源 -->

	 <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
            <!-- 基本属性 url、user、password -->
            <property name="url" value="jdbc:mysql://127.0.0.1:3306/activity"/>
            <property name="username" value="root"/>
            <property name="password" value="root"/>
            <!-- 配置初始化大小、最小、最大 -->
            <property name="initialSize" value="3"/>
            <property name="minIdle" value="1"/>
            <property name="maxActive" value="20"/>

            <!-- 配置获取连接等待超时的时间 -->
            <property name="maxWait" value="60000"/>

            <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
            <property name="timeBetweenEvictionRunsMillis" value="60000"/>

            <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
            <property name="minEvictableIdleTimeMillis" value="300000"/>

            <property name="validationQuery" value="SELECT 'x'"/>
            <property name="testWhileIdle" value="true"/>
            <property name="testOnBorrow" value="false"/>
            <property name="testOnReturn" value="false"/>

            <!-- 配置监控统计拦截的filters -->
            <property name="filters" value="stat"/>
        </bean>

        <!-- MyBatis配置 配置会话工厂SqlSessionFactory -->
            <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
                <!-- 指定数据源 -->
                <property name="dataSource" ref="dataSource"></property>
            </bean>

    <!-- 使用自动扫描mapper的方式加载mapper.xml -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <!-- 指定扫描包的路径，mapper.xml的路径 -->
            <property name="basePackage" value="com.jd.jr.dao"></property>
    </bean>

     <!-- 事务管理器, Jdbc单数据源事务 -->
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource" />
        </bean>
        <tx:annotation-driven transaction-manager="transactionManager" />

</beans>

springMVC的配置文件：springMVC-servlet.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:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd"
       default-lazy-init="false" >

<!-- 使用annotation 自动注册bean,并检查@Required,@Resource的属性已被注入-->
<context:component-scan base-package="com.jd.jr.controllor"></context:component-scan>
<context:annotation-config/>
</beans>

springmvc+spring+mybatis整合

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原文地址：http://blog.csdn.net/mggwct/article/details/47044205