SpringSpring整合Mybatis

Posted 2020-10-27 Gtr_Right

首先第一步引依赖：

<!--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>
<!--mybatis jar包-->
<dependency>
  <groupId>org.mybatis</groupId>
  <artifactId>mybatis</artifactId>
  <version>3.2.2</version>
</dependency>
<!--jstl表达式-->
<dependency>
  <groupId>jstl</groupId>
  <artifactId>jstl</artifactId>
  <version>1.2</version>
</dependency>

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

2.创建数据库：做一个简单的添加吧：

还得创建两个jsp

 

 

 

3.写dao,service,entity,servlet

　　　　实现类

　　dao层　　

 

service：

然后就是servlet

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            request.setCharacterEncoding("utf-8");
            String name = request.getParameter("bookname");
            String author = request.getParameter("bookauthor");
            String bookprice = request.getParameter("bookprice");
            Integer price = Integer.parseInt(bookprice);

    Book book = new Book();
    book.setBookname(name);
    book.setBookauthor(author);
    book.setBookprice(price);

    //ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext18ssm.xml");
    ApplicationContext context = WebApplicationContextUtils.getRequiredWebApplicationContext(this.getServletContext());
    IBookService service= (IBookService)context.getBean("bookservice");
    try {
       int count= service.addBook(book);
       if (count>0){
           request.getRequestDispatcher("/index.jsp").forward(request,response);
       }else {
           response.sendRedirect("/addBook.jsp");
       }
    } catch (Exception e) {
        e.printStackTrace();
    }


}

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

最后配置文件

<?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 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>

    <!--2.识别到jdbc.properties文件-->
    <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>

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


    <!--3.dao-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="cn.Spring.t22ssm.dao"></property>
    </bean>


    <!--4.service-->
    <bean id="bookservice" class="cn.Spring.t22ssm.service.IBookServiceImpl">
        <property name="bookDao" ref="IBookDao"></property>
    </bean>

    <!--事务：事务管理器-->
    <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>