【SSM框架整合_6_Spring整合MyBatis框架_ Spring整合MyBatis框架】_软件框架技术ssm-第6章简化spring对mybatis的整合-优快云博客

Spring整合MyBatis框架

目的：把SqlMapConfig.xml配置文件中的内容配置到applicationContext.xml配置文件中；整合原理就是把Dao生成的代理对象，存入到IOC容器中
在service中注入dao对象，进行测试

<?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: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.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
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
   <!-- 加载数据库配置属性文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!--开启注解扫描，要扫描的是service-->
    <context:component-scan base-package="com.qcby.service"/>
    <!--配置数据库连接池-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    <!--Spring整合MyBatis框架，SqlSessionFactoryBean创建工厂对象-->
    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 扫描entity包 使用别名 -->
        <property name="typeAliasesPackage" value="com.qcby.entity" />
        <!-- 扫描sql配置文件:mapper需要的xml文件 -->
        <property name="mapperLocations" value="classpath:mapper/*.xml"/>
    </bean>
    <!--配置扫描Dao接口包，动态实现Dao接口，注入到ioc容器中-->
    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.qcby.dao"/>
    </bean>

</beans>

service代码如下

package com.qcby.service;

import com.qcby.dao.AccountDao;
import com.qcby.entity.Account;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;

@Service
public class AccountServiceImpl implements AccountService {
    @Autowired
    private AccountDao accountDao;
    //查询所有
    @Override
    public List<Account> findAll() {
        System.out.println("业务层：查询所有");
        List<Account> list = accountDao.findAll();
        return list;
    }
}

controller代码如下

package com.qcby.controller;

import com.qcby.entity.Account;
import com.qcby.service.AccountService;
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;

import java.util.List;

@Controller
@RequestMapping("/account")
public class AccountController {
    //依赖注入
    @Autowired
    private AccountService accountService;
    /**
     * 查询所有
     * @return
     */
    @RequestMapping("/findAll")
    public ModelAndView findAll(){
        System.out.println("表现层：查询所有");
        //调用service的方法
        List<Account> list = accountService.findAll();
        for (Account account : list) {
            System.out.println(account);
        }
        ModelAndView mv = new ModelAndView();
        mv.setViewName("suc");
        return mv;
    }
}

配置声明式事务管理

<!-- 配置声明式事务管理-->
 <!--平台事务管理器-->
 <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
     <property name="dataSource" ref="dataSource"/>
 </bean>
 <!--配置事务的通知-->
 <tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager">
     <tx:attributes>
         <tx:method name="find*" read-only="true"/>
         <tx:method name="*" />
     </tx:attributes>
 </tx:advice>
 <!--配置事务的增强-->
 <aop:config>
     <aop:advisor advice-ref="txAdvice" pointcut="execution(public * com.qcby.service.*ServiceImpl.*(..))"/>
 </aop:config>

表单代码

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
    <a href="/account/findAll">查询所有</a>
    <form action="/account/save" method="post">
        姓名：<input type="text" name="name" /><br/>
        金额：<input type="text" name="money" /><br/>
        <input type="submit" value="保存" />
    </form>
</body>
</html>

controller代码

package com.qcby.controller;

import com.qcby.entity.Account;
import com.qcby.service.AccountService;
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;

import java.util.List;

@Controller
@RequestMapping("/account")
public class AccountController {
    //依赖注入
    @Autowired
    private AccountService accountService;
    /**
     * 查询所有
     * @return
     */
    @RequestMapping("/findAll")
    public ModelAndView findAll(){
        System.out.println("表现层：查询所有");
        //调用service的方法
        List<Account> list = accountService.findAll();
        for (Account account : list) {
            System.out.println(account);
        }
        ModelAndView mv = new ModelAndView();
        mv.setViewName("suc");
        return mv;
    }

    @RequestMapping("/save")
    public String save(Account account){
        //Service的保存方法
        accountService.save(account);
        return "suc";
    }
}

service接口和实现类代码

package com.qcby.service;

import com.qcby.entity.Account;
import java.util.List;

public interface AccountService {

    //查询所有
    public List<Account> findAll();
    
    //保存
    void save(Account account);
}

package com.qcby.service;

import com.qcby.dao.AccountDao;
import com.qcby.entity.Account;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;

@Service
public class AccountServiceImpl implements AccountService {
    @Autowired
    private AccountDao accountDao;
    //查询所有
    @Override
    public List<Account> findAll() {
        System.out.println("业务层：查询所有");
        List<Account> list = accountDao.findAll();
        return list;
    }

    @Override
    public void save(Account account) {
        accountDao.save(account);
    }
}

dao代码

package com.qcby.dao;

import com.qcby.entity.Account;

import java.util.List;

public interface AccountDao {
    //查询所有
    public List<Account> findAll();
    //保存
    void save(Account account);
}

dao.xml代码

<?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">
<mapper namespace="com.qcby.dao.AccountDao">
    <select id="findAll" resultType="account">
        select * from account
    </select>
    <insert id="save" parameterType="account">
        insert into account (name,money) values(#{name},#{money})
    </insert>
</mapper>