Spring整合MyBatis

作为Bean容器，Spring框架提供了IOC机制，可以接管所有组件的创建工作并进行依赖管理

spring整合MyBatis的准备工作

1.在项目中加入相关jar包

<!--Mybatis+Spring整合-->
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.2.1</version>
</dependency>

<!-- Spring整合JavaWeb的包 -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>4.2.0.RELEASE</version>
</dependency>

<!--javaee  jar-->
<dependency>
    <groupId>javaee</groupId>
    <artifactId>javaee-api</artifactId>
    <version>5</version>
</dependency>

2.创建开发目录结构

3.配置相关映射/配置文件

<?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: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/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--</bean>-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>

    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>

    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:Mybatis-Config.xml"></property>
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.dome07.dao"></property>
    </bean>

    <bean id="bookService" class="cn.dome07.service.BookServiceImpl">
        <property name="bookDao" ref="IBookDao"></property>
    </bean>

    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager"></tx:annotation-driven>
</beans>

servlet中

package cn.dome07.servlet;

import cn.dome07.entity.Book;
import cn.dome07.service.IBookService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.context.support.WebApplicationContextUtils;


import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@Transactional()
public class BookServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        request.setCharacterEncoding("UTF-8");
        String bookName = request.getParameter("bookName");
        String bookAuthor = request.getParameter("bookAuthor");
        Integer bookPrice =Integer.parseInt(request.getParameter("bookPrice"));

        Book book = new Book();
        book.setBookName(bookName);
        book.setBookAuthor(bookAuthor);
        book.setBookPrice(bookPrice);

        ApplicationContext ac = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
        IBookService bs = (IBookService)ac.getBean("bookService");

        try {
            int count = bs.addBook(book);
            if(count>0){
                request.getRequestDispatcher("/book.jsp").forward(request,response);
            }else{
                response.sendRedirect("../index.jsp");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
         doPost(request, response);
    }
}

。。。结束