spring--ssm整合

1      Ssm

1.1  导入jar

导入spring(包含springmvc)，mybatis，mybatis-spring整合。数据库驱动，jstl，c3p0管理数据源，log4j.

 

 

 

 

 

 

1.2  配置web.xml入门文件

 

1.2.1  编码过滤—springMVC自带

<!-- 1.编码过滤 -->
   <filter>
      <filter-name>characterEncoding</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>characterEncoding</filter-name>
      <url-pattern>/*</url-pattern>
   </filter-mapping> 

1.2.2  加载springmvc.xml

<!-- 2.加载 springmvc.xml -->
   <servlet>
      <servlet-name>springDispatcherServlet</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>springDispatcherServlet</servlet-name>
      <url-pattern>*.do</url-pattern>
   </servlet-mapping>

   <!-- restful风格 -->
   <servlet-mapping>
      <servlet-name>springDispatcherServlet</servlet-name>
      <url-pattern>/rest/*</url-pattern>
   </servlet-mapping> 

1.2.3  加载applicationContext.xml

<!-- 3.加载Spring配置 -->
   <context-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:applicationContext.xml</param-value>
   </context-param>
 
   <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   </listener> 

1.3  springmvc.xml

 

1.4  applicationContext.xml

 

1.4.1  全局扫描+数据源

<context:component-scan base-package="com.lan"/>
 
   <!-- 第一步：数据源 -->
   <context:property-placeholder location="classpath:jdbc.properties" />
  
   <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
      <property name="driverClass" value="${jdbc.driver}"></property>
      <property name="jdbcUrl" value="${jdbc.url}"></property>
      <property name="user" value="${jdbc.user}"></property>
      <property name="password" value="${jdbc.password}"></property>
   </bean> 

1.4.2  sqlSessionFactory+mapper接口代理开发

<!-- 第二步：sqlSessionFactory -->
   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
      <!-- 1.注入数据源 -->
      <property name="dataSource" ref="dataSource"></property>
      <!-- 2.注入sqlMapConfig.xml -->
      <property name="configLocation" value="classpath:mybatis/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.lan.dao"></property>
      <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
    </bean> 

1.4.3  事务

1.4.3.1       xml

<!-- 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.lan.service.*.*(..))"/>
   </aop:config>

1.4.3.2       注解

 

1.5  编写接口代码

使用sqlGenarator自动生产。

 

Service层：

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

1.6   Controller

package cn.itcast.controller;
 
import java.util.List;
 
import javax.annotation.Resource;
 
importorg.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
 
import cn.itcast.domain.Items;
import cn.itcast.service.ItemsService;
 
@Controller
@RequestMapping("/items")
public class ItemsController {
        
         @Resource
         privateItemsService itemsService;
        
         //查询所有商品
         @RequestMapping("list")
         publicString list(Model model){
                  
                   List<Items>list = itemsService.findAll();
                  
                   model.addAttribute("itemsList",list);
                  
                   return"itemsList";
                  
         }
         //跳转到修改页面
         @RequestMapping("edit")
         publicString 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")
         publicString saveOrUpdate(Items items){
                  
                   itemsService.saveOrUpdate(items);
                  
                   return"redirect:list.do";
         }
        
         //根据Id进行删除
         @RequestMapping("deleteByID")
         publicString deleteByID(Integer id)
         {
                   itemsService.deleteByID(id);
                  
                   return"redirect: list.do";
         }
        
         //批量删除
         @RequestMapping("deleteByIds")
         publicString deleteByIds(Integer[] id){
                  
                   for(Integerids : id){
                           
                            itemsService.deleteByID(ids);
                   }
                  
                  
                   return"redirect: list.do";
         }
        
 
}