SSM框架介绍？？

目录：

SSM

1、导入jar

2、创建一个web工程并导入jar

3、配置web.xml入门文件

4、编写接口代码

5、Controller

 

内容：

笔记03_P276

例：springmvc_day02_ssm

项目配置文件里意思？？web.xml中等

 

1、导入jar

Mysql的驱动包1个

Mybatis的核心包和依赖包11个

Mybatis和spring的整合包1个

Spring的包13个

c3p0数据库连接池包1个

切面编程aop包2个

JSP标准标签库jstl包1个

 

2、创建一个web工程并导入jar

 

 

3、配置web.xml入门文件

加载springmvc配置文件

springmvc.xml

<context:component-scan base-package="com.it"></context:component-scan><!-- annotation-driven:默认创建了多个对象：RequestMappingHandlerMapping，RequestMappingHandlerAdapter    也就提供对json格式支持 --><mvc:annotation-driven/><!-- 配置sprigmvc视图解析器：解析逻辑试图 后台返回逻辑试图：index视图解析器解析出真正物理视图：前缀+逻辑试图+后缀====/WEB-INF/jsps/index.jsp --><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">    <property name="prefix" value="/WEB-INF/jsps/"></property>    <property name="suffix" value=".jsp"></property></bean>

 

加载spring配置文件

bean.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"        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"        xsi:schemaLocation="http://www.springframework.org/schema/beans      http://www.springframework.org/schema/beans/spring-beans-3.2.xsd      http://www.springframework.org/schema/mvc      http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd      http://www.springframework.org/schema/context      http://www.springframework.org/schema/context/spring-context-3.2.xsd      http://www.springframework.org/schema/aop      http://www.springframework.org/schema/aop/spring-aop-3.2.xsd      http://www.springframework.org/schema/tx      http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">    <context:component-scan base-package="com.it"></context:component-scan>     <!-- 第一步：配置数据源 -->    <context:property-placeholder location="classpath:jdbc.properties" />    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">        <property name="jdbcUrl" value="${jdbc.url}"></property>        <property name="driverClass" value="${jdbc.driver}"></property>        <property name="user" value="${jdbc.username}"></property>        <property name="password" value="${jdbc.password}"></property>    </bean>     <!-- 第二步：创建sqlSessionFactory。生产sqlSession -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource"></property>        <property name="configLocation" value="classpath:sqlMapConfig.xml"></property>    </bean>     <!-- 配置mybatis接口代理开发        * 接口类名和映射文件必须同名        *　接口类和映射文件必须在同一个目录　下        * 映射文件namespace名字必须是接口的全类路径名        *　接口的方法名必须和映射Statement的ｉｄ一致     -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="com.it.dao"></property>        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>    </bean>     <!-- 第三步：事务 -->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource"></property>    </bean>     <!-- 配置通知 -->    <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <tx:method name="save*" propagation="REQUIRED" />            <tx:method name="update*" propagation="REQUIRED" />            <tx:method name="delete*" propagation="REQUIRED" />            <tx:method name="insert*" propagation="REQUIRED" />            <tx:method name="*" propagation="REQUIRED" />        </tx:attributes>    </tx:advice>     <!-- 配置拦截service -->    <aop:config>        <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.it.service.*.*(..))"/>    </aop:config></beans>

 

 

4、编写接口代码

使用sqlGenarator自动生产？？

 

dao层：？？

 

service层：

ItemsServiceImpl

@Servicepublic class ItemsServiceImpl implements ItemsService {        @Resource    private ItemsMapper itemsMapper;        public List<Items> findAll() {       List<Items> list =     itemsMapper.findAll();       return list;   }    public Items findByID(Integer id) {       Items items = itemsMapper.selectByPrimaryKey(id);       return items;   }    public void saveOrUpdate(Items items) {       itemsMapper.updateByPrimaryKey(items);          }    public void deleteByID(Integer id) {       itemsMapper.deleteByPrimaryKey(id);   }}

 

 

5、Controller

ItemsController

@Controller@RequestMapping("/items")public class ItemsController {        @Resource    private ItemsService itemsService;        //查询所有商品   @RequestMapping("list")    public String list(Model model){       List<Items> list = itemsService.findAll();      model.addAttribute("itemsList", list);       return "itemsList";   }    //跳转到修改页面   @RequestMapping("edit")    public String edit(Integer id , Model model){       //根据Id查询商品      Items items = itemsService.findByID(id);       //页面回显      model.addAttribute("item", items);       return "editItem";   }        @RequestMapping("saveOrUpdate")    public String saveOrUpdate(Items items){       itemsService.saveOrUpdate(items);       return "redirect:list.do";   }    //根据Id进行删除   @RequestMapping("deleteByID")    public String deleteByID(Integer id) {       itemsService.deleteByID(id);       return "redirect: list.do";   }    //批量删除   @RequestMapping("deleteByIds")    public String deleteByIds(Integer[] id){       for(Integer ids : id){          itemsService.deleteByID(ids);      }       return "redirect: list.do";   }}