When creating a spring + spring MVC + mybatis project, you first need to configure some corresponding configuration files. Here is a brief introduction of the simplest requirements for these configuration files.

1  Mybatis.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:tx="http://www.springframework.org/schema/tx"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans.xsd

http://www.springframework.org/schema/tx

http://www.springframework.org/schema/tx/spring-tx.xsd">


<!-- 1. data source : DriverManagerDataSource -->

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

<property name="driverClassName" value="com.mysql.jdbc.Driver"/>

<property name="url" value="jdbc:mysql://localhost:3306/*"/>

<property name="username" value="*"/>

<property name="password" value="*"/>

</bean>


<!--

2. mybatis Of SqlSession Factory: SqlSessionFactoryBean

-->

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

<property name="dataSource" ref="dataSource"/>

</bean>

<!--

3. mybatis Auto scan load Sql Mapping file : MapperScannerConfigurer

-->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />

<property name="basePackage" value="com.*.*.mapper" />

</bean>


<!-- 4. transaction management : DataSourceTransactionManager -->

<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

<property name="dataSource" ref="dataSource"/>

</bean>


<!-- 5. Use declarative transactions -->

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


</beans>

2 springmvc-servlet.xml

This configuration file configures what the spring MVC framework requires. The parts with * are filled in by yourself

1. <?xml version="1.0" encoding="UTF-8"?>
   
   <beans xmlns="http://www.springframework.org/schema/beans"
   
   xmlns:context="http://www.springframework.org/schema/context"
   
   xmlns:mvc="http://www.springframework.org/schema/mvc"
   
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   
   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/mvc
   
   http://www.springframework.org/schema/mvc/spring-mvc.xsd">
   
   
   <!--Open notes-->
   
   <mvc:annotation-driven />
   
   <!-- Static resources are directly accessible -->
   
   <mvc:default-servlet-handler />
   
   
   <!-- Scan contains Controller Package with annotation -->
   
   <context:component-scan base-package="com.*.*.controller" />
   
   
   <!-- jsp View path configuration -->
   
   <bean id="jspViewResolver"
   
   class="org.springframework.web.servlet.view.InternalResourceViewResolver">
   
   <property name="prefix" value="/WEB-INF/jsp/" />
   
   <property name="suffix" value=".jsp" />
   
   </bean>
   
   </beans>

    

3 applicationContext.xml

This is the configuration file required by Spring. Note here: the part with * is the project name, not specific to the package.

1. <?xml version="1.0" encoding="UTF-8"?>
   
   <beans xmlns="http://www.springframework.org/schema/beans"
   
   xmlns:context="http://www.springframework.org/schema/context"
   
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   
   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">
   
   
   <!-- Auto load, filter out@Controller Annotated classes -->
   
   <context:component-scan base-package="com.*.*">
   
   <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
   
   </context:component-scan>
   
   <!--Import required file resources-->
   
   <import resource="MyBatis.xml" />
   
   
   </beans>

    

4 web.xml

1. <?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_3_0.xsd"
   
   version="3.0">
   
   
   
   <listener>
   
   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   
   </listener>
   
   
   <!-- Spring and Spring MVC -->
   
   <context-param>
   
   <param-name>contextConfigLocation</param-name>
   
   <param-value>classpath:applicationContext.xml</param-value>
   
   </context-param>
   
   
   <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>

    

The listener must have one. If it is missing, an error will be reported. After that, you can also add filter and other content.