SSM框架

Spring+SpringMvc+Mybatis框架

1.依赖

2.web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
    <display-name>Archetype Created Web Application</display-name>

    <!-- spring 配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-mybatis.xml</param-value>
    </context-param>


    <!--spring applicationContext载入-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!--springMvc 核心  servlet-->
          <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:spring-mvc.xml</param-value>
            </init-param>
          </servlet>
          <!-- 拦截所有请求 -->
          <servlet-mapping>
            <servlet-name>springMvc</servlet-name>
            <url-pattern>/</url-pattern>
          </servlet-mapping>

</web-app>

3.spring和mybatis整合的xml   spring-mybatis.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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans 
　　　　http://www.springframework.org/schema/beans/spring-beans.xsd
　　 　 http://www.springframework.org/schema/context
　　　　 https://www.springframework.org/schema/context/spring-context.xsd">


    <!-- 自动搜索bean -->
    <!--    <context:annotation-config/>-->
    <context:component-scan base-package="com.demo"/>

    <!--引入properties文件-->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location" value="classpath:database.properties"/>
    </bean>

    <bean id="datasource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
            <property name="driverClassName" value="${driverClassName}"/>
            <property name="url" value="${url}"/>
            <property name="username" value="${username}"/>
            <property name="password" value="${password}"/>
    </bean>

         <!-- mybatis核心bean -->

        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="datasource"/>
            <property name="configLocation" value="classpath:/mybatis/mybatis.xml"/>
            <!--和注解 可选-->
            <property name="mapperLocations" value="classpath:mapper.xml"/>
    </bean>

    <!-- 自动搜索mapper接口 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.demo.dao"/>
    </bean>
</beans>

4.spring-mvc     spring-mvc.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"
       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
       https://www.springframework.org/schema/context/spring-context.xsd">
    
    <!--开启注解-->
    <context:annotation-config/>
    <!-- 注解驱动 -->
    <mvc:annotation-driven/>
    <!-- 自动扫描该包 -->
    <context:component-scan base-package="com.demo.controller"></context:component-scan>

    <!-- 配置jsp文件的前缀 后缀 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

5.database.properties

driverClassName=com.mysql.cj.jdbc.Driver
url=jdbc:mysql://localhost/book?serverTimezone=GMT&useSSL=false
username=root
password=123456

6.项目目录