ssm

ApplicationContext.xml

spring配置

<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"
       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">
    <!--开启spring注解扫描-->
    <context:component-scan base-package="com.lzy">
        <!--spring只关注service层和dao层，不扫描controller层-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"></context:exclude-filter>
    </context:component-scan>
</beans>

springmvc.xml

springmvc配置

<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:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.1.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">

    <!--开启controller注解扫描-->
    <context:component-scan base-package="com.lzy.controller"></context:component-scan>

    <!--配置视图解析器-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/pages/"></property>
            <property name="suffix" value=".jsp"></property>
    </bean>
    <!--过滤静态资源-->
    <mvc:resources mapping="/css/**" location="/css/"></mvc:resources>
    <mvc:resources mapping="/js/**" location="/js/"></mvc:resources>
    <mvc:resources mapping="/images/**" location="/images/"></mvc:resources>
    <!--开启springmvc注解支持-->
    <mvc:annotation-driven></mvc:annotation-driven>
</beans>

项目xml的配置

<!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>

  <!--中文过滤器-->
  <filter>
    <filter-name>characterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/</url-pattern>
  </filter-mapping>

  <!--springmvc前端控制器-->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>


</web-app>

SqlMapConfig.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "mybatis-3-config.dtd" >
<configuration>

   <!-- 可以配置多个运行环境，但是每个SqlSessionFactory 实例只能选择一个运行环境 -->
   <environments default="work">
       <environment id="work">
           <transactionManager type="JDBC"/>
           <!-- UNPOOLED POOLED JNDI -->
           <dataSource type="UNPOOLED">
               <property name="driver" value="com.mysql.cj.jdbc.Driver" />
               <!--mysql8.xx以上版本需要配置时区-->
               <property name="url" value="jdbc:mysql://localhost:3306/student?serverTimezone=GMT%2B8" />
               <property name="username" value="root" />
               <property name="password" value="123456" />
           </dataSource>
       </environment>
   </environments>
   <mappers>
       <package name="com.lzy.dao"/>
   </mappers>
</configuration>

测试mybatis

//        加载配置文件
        InputStream is = Resources.getResourceAsStream ("SqlMapConfig.xml");
//        创建sqlsessionFacatory对象
        SqlSessionFactory sessionFactory = new SqlSessionFactoryBuilder ().build (is);
//          创建sqlsession对象 
        SqlSession sqlSession = sessionFactory.openSession ();
//        获取到代理对象
        IStudentDao mapper = sqlSession.getMapper (IStudentDao.class);
        List<Student> list = mapper.list ();
        for (Student s:list){
            System.out.println (s);
        }
        sqlSession.close ();
        is.close ();