ssm框架配置

一，web.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>
  <!--加载spring容器，修改默认路径，并指定位置-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring-service.xml,classpath:spring-dao.xml</param-value>
  </context-param>
  <!--设置post请求体的编码方式，get的编码方式在tomcat的配置文件中设置-->
  <filter>
    <filter-name>encoding</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>encoding</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <!--设置监听器-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!--设置前端控制器-->
  <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-web.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

二，mybatis的配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
   <settings>
       <setting name="useGeneratedKeys" value="true"/>
       <!--开启懒加载-->
       <setting name="lazyLoadingEnabled" value="true"/>
       <!--开启积极懒加载-->
       <setting name="aggressiveLazyLoading" value="false"/>
       <!--全局开启二级缓存-->
       <setting name="cacheEnabled" value="true"/>
   </settings>
</configuration>

三，spring-web.xml的配置

<?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:mvc="http://www.springframework.org/schema/mvc"
       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">
    <!--扫描包-->
    <context:component-scan base-package="com.lanou.web.controller"/>
    <!--设置静态资源可访问-->
    <mvc:default-servlet-handler/>
    <!--文件解析器，上传-->
    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="10240000"/>
    </bean>
    <!--配置校验器-->
    <bean id="validatorFactory" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
        <property name="providerClass" value="org.hibernate.validator.HibernateValidator"/>
    </bean>
    <mvc:annotation-driven validator="validatorFactory"/>
    <!--配置映射器，适配器-->
    <mvc:annotation-driven/>
    <!--设置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB_INF/JSP/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

四，spring-service.xml的配置

<?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">
    <!--扫描实现类的包-->
    <context:component-scan base-package="com.lanou.service.impl"/>
    <!--配置事务管理-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="datasource"/>
    </bean>
    <!--注解的形式配置切点-->
    <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

五，spring-dao.xml的配置

<?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 
http://www.springframework.org/schema/context/spring-context.xsd">
    <!--接口不需要注解，所以不用扫描包-->
    <!--配置数据源-->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <bean id="datasource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.Driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    <!--创建sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="datasource"/>
        <!--设置别名-->
        <property name="typeAliasesPackage" value="com.lanou.entity"/>
        <property name="configLocation" value="classpath:mybatis.xml"/>
     </bean>
    <!--扫描mapper包下的接口-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <property name="basePackage" value="com.lanou.mapper"/>
    </bean>
</beans>

六，mapper的配置

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.lanou.mapper.PersonMapper">
    <select id="findAll" resultType="person">
        SELECT * FROM person
    </select>

    <insert id="insert" keyProperty="id">
        INSERT INTO person VALUE (NULL ,#{name} , #{age})
    </insert>

    <select id="findById" resultType="person">
        SELECT * FROM person WHERE id=#{id}
    </select>
</mapper>