1.整合思路

1. 第一步：整合dao层
   • mybatis和spring整合，通过spring管理mapper接口
   • 使用mapper的扫描自动扫描mapper接口在spring中进行注册
2. 第二步：整合service层
   • 通过spring管理service接口
   • 使用配置方式将service接口配置在spring配置文件中
   • 实现事务管理
3. 第三步：整合Spring MVC
   • 由于Spring MVC是spring的模块，不需要整合

2.工程结构

添加依赖

pom.xml

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

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>club.krislin</groupId>
  <artifactId>SpringMVCAndMybatis</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>SpringMVCAndMybatis Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <!-- spring版本号 -->
    <spring.version>5.2.6.RELEASE</spring.version>
    <!-- mysql connector版本号-->
    <mysql.version>5.1.47</mysql.version>
    <!-- mybatis版本号 -->
    <mybatis.version>3.5.1</mybatis.version>
    <!-- mybatis-spring版本号 -->
    <mybatis-spring.version>2.0.1</mybatis-spring.version>
  </properties>

  <dependencies>

    <!-- spring框架-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <!--数据库-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.version}</version>
    </dependency>
    <!--mybatis-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>${mybatis-spring.version}</version>
    </dependency>
    <!--数据源-->
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.4</version>
    </dependency>

    <!--日志依赖-->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>1.7.18</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-simple</artifactId>
      <version>1.7.18</version>
    </dependency>


    <!-- JSP tag -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>SpringMVCAndMybatis</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.1.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.8.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.22.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

项目目录

3.整合步骤

1.dao层

目录结构

数据库配置文件和日志配置文件

db.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost/mybatis?characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456

log4j.properties

### set log levels ###
log4j.rootLogger = INFO , C , D , E 

### console ###
log4j.appender.C = org.apache.log4j.ConsoleAppender
log4j.appender.C.Target = System.out
log4j.appender.C.layout = org.apache.log4j.PatternLayout
log4j.appender.C.layout.ConversionPattern = [aopExample][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

### log file ###
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ../logs/springmvc_hibernate_demo.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = INFO 
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern = [aopExample][%p] [%-d{yyyy-MM-dd HH:mm:ss}] %C.%M(%L) | %m%n

### exception ###
log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
log4j.appender.E.File = ../logs/aopExample_error.log 
log4j.appender.E.Append = true
log4j.appender.E.Threshold = ERROR 
log4j.appender.E.layout = org.apache.log4j.PatternLayout
log4j.appender.E.layout.ConversionPattern =[aopExample][%p] [%-d{yyyy-MM-dd HH\:mm\:ss}] %C.%M(%L) | %m%n

mybatis配置文件

sqlMapConfig.xml

<?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>
    <!--配置别名-->
    <typeAliases>
        <!--批量扫描别名-->
        <package name="club.krislin.po"/>
    </typeAliases>

    <!-- 配置mapper
    由于使用spring和mybatis的整合包进行mapper扫描，这里不需要配置了。
    必须遵循：mapper.xml和mapper.java文件同名且在一个目录
     -->
</configuration>

spring配置文件

配置：

• 数据源
• SqlSessionFactory
• mapper扫描器

applicationContext-dao.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: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">

    <!-- 加载db.properties文件中的内容，db.properties文件中key命名要有一定的特殊规则 -->
    <context:property-placeholder location="classpath:db.properties"/>
    <!--配置数据源dbcp-->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="maxActive" value="30"/>
        <property name="maxIdle" value="5"/>
    </bean>
    <!-- 从整合包里找，org.mybatis:mybatis-spring -->
    <!-- sqlSessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--数据库连接池-->
        <property name="dataSource" ref="dataSource"/>
        <!--加载mybatis的全局配置文件-->
        <property name="configLocation" value="classpath:mybatis/sqlMapConfig.xml"/>
    </bean>
    <!--mapper扫描-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--扫描包路径,如果需要扫描多个包,中间使用半角逗号隔开-->
        <property name="basePackage" value="club.krislin.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>
</beans>

逆向工程生成po类及mapper(dao层)

方法参见 [《Mybatis Generator超详细配置》](…/Mybatis/Mybatis Generator超详细配置.md)

手动定义商品查询mapper

针对综合查询mapper，一般情况会有关联查询，建议自定义mapper

• ItemsMapperCustom.xml

  <?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="club.krislin.mapper.ItemsMapperCustom">
      <!-- 定义商品查询的sql片段，就是商品查询条件 -->
      <sql id="query_items_where">
          <!-- 使用动态sql，通过if判断，满足条件进行sql拼接 -->
          <!-- 商品查询条件通过ItemsQueryVo包装对象 中itemsCustom属性传递 -->
          <if test="itemsCustom!=null">
              <if test="itemsCustom.name!=null and itemCustom.name!=''">
                  items.name LIKE '%${itemsCustom.name}%'
              </if>
          </if>
      </sql>
  
      <!-- 商品列表查询 -->
      <!-- parameterType传入包装对象(包装了查询条件)
          resultType建议使用扩展对象
       -->
      <select id="findItemsList" parameterType="club.krislin.po.ItemsQueryVo"
           resultType="club.krislin.po.ItemsCustom">
              SELECT items.* FROM items
              <where>
                  <include refid="query_items_where"></include>
              </where>
      </select>
  </mapper>
  
  

• ItemsMapperCustom.java

  package club.krislin.mapper;
  
  import club.krislin.po.ItemsCustom;
  import club.krislin.po.ItemsQueryVo;
  
  import java.util.List;
  
  /**
   * @Package club.krislin.mapper
   * @ClassName ItemsMapperCustom
   * @Description TODO
   * @Date 19/12/25 10:07
   * @Author LIM
   * @Version V1.0
   */
  public interface ItemsMapperCustom {
      /**
       * 商品列表查询
       * @param itemsQueryVo
       * @return
       * @throws Exception
       */
      List<ItemsCustom> findItemsList(ItemsQueryVo itemsQueryVo)throws Exception;
  }
  
  

• po类ItemsCustom

  package club.krislin.po;
  
  /**
   * @Package club.krislin.po
   * @ClassName ItemsCustom
   * @Description TODO
   * @Date 19/12/25 10:03
   * @Author LIM
   * @Version V1.0
   */
  public class ItemsCustom extends Items{
      //添加商品信息的扩展属性
  }
  

• 输入pojo的包装类

  package club.krislin.po;
  
  /**
   * @Package club.krislin.po
   * @ClassName ItemsQueryVo
   * @Description TODO
   * @Date 19/12/25 9:58
   * @Author LIM
   * @Version V1.0
   */
  public class ItemsQueryVo {
      /**
       * 商品信息
       */
      private Items items;
  
      /**
       * 为了系统 可扩展性，对原始生成的po进行扩展
       */
      private ItemsCustom itemsCustom;
  
      public Items getItems() {
          return items;
      }
  
      public void setItems(Items items) {
          this.items = items;
      }
  
      public ItemsCustom getItemsCustom() {
          return itemsCustom;
      }
  
      public void setItemsCustom(ItemsCustom itemsCustom) {
          this.itemsCustom = itemsCustom;
      }
  }
  
  

2.service层

目录结构

定义service接口

• ItemsService

  package club.krislin.service;
  
  import club.krislin.po.ItemsCustom;
  import club.krislin.po.ItemsQueryVo;
  
  import java.util.List;
  
  /**
   * @Package club.krislin.service
   * @InterfaceName ItemsService
   * @Description TODO
   * @Date 19/12/25 10:12
   * @Author LIM
   * @Version V1.0
   */
  public interface ItemsService {
      /**
       * 商品查询列表
       * @param itemsQueryVo
       * @return
       * @throws Exception
       */
      List<ItemsCustom> findItemsList(ItemsQueryVo itemsQueryVo) throws Exception;
  }
  
  

• ItemsServiceImpl

  public class ItemsServiceImpl implements ItemsService {
  
      @Autowired
      private ItemsMapperCustom itemsMapperCustom;
  
      public List<ItemsCustom> findItemsList(ItemsQueryVo itemsQueryVo) throws Exception {
          return itemsMapperCustom.findItemsList(itemsQueryVo);
      }
  }
  

在spring容器配置service

applicatrionContext-service.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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <!--商品管理的service-->
    <bean id="itemService" class="club.krislin.service.impl.ItemsServiceImpl"/>
</beans>

事务控制

applicationContext-transaction.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:tx="http://www.springframework.org/schema/tx"
       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/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd">
    <!-- 事务管理器
        对mybatis操作数据库事务控制，spring使用jdbc的事务控制类
    -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 数据源
        dataSource在applicationContext-dao.xml中配置了
         -->
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!-- 通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="save*" propagation="REQUIRED"/>
            <tx:method name="delete*" propagation="REQUIRED"/>
            <tx:method name="insert*" propagation="REQUIRED"/>
            <tx:method name="update*" propagation="REQUIRED"/>
            <tx:method name="find*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="get*" propagation="SUPPORTS" read-only="true"/>
            <tx:method name="select*" propagation="SUPPORTS" read-only="true"/>
        </tx:attributes>
    </tx:advice>
    <!--aop-->
    <aop:config>
        <aop:advisor advice-ref="txAdvice" pointcut="execution(* club.krislin.service.impl.*.*(..))"/>
    </aop:config>
</beans>

3.controller层

目录结构

springmvc.xml

<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-4.0.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context.xsd">

    <!-- 对于注解的Handler 可以单个配置
     实际开发中加你使用组件扫描
     -->
    <!-- 可以扫描controller、service、...
	这里让扫描controller，指定controller的包
	 -->
    <context:component-scan base-package="club.krislin.controller"/>

    <!-- 使用mvc:annotation-driven代替上面两个注解映射器和注解适配的配置
     mvc:annotation-driven默认加载很多的参数绑定方法，
     比如json转换解析器默认加载了，如果使用mvc:annotation-driven则不用配置上面的RequestMappingHandlerMapping和RequestMappingHandlerAdapter
     实际开发时使用mvc:annotation-driven
     -->
    <mvc:annotation-driven></mvc:annotation-driven>
    <!-- 视图解析器
   解析jsp,默认使用jstl,classpath下要有jstl的包
   -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
</beans>

配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
         http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

  <display-name>Spring And Mybatis</display-name>
  <!--加载spring容器-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring/applicationContext-*.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

  <!--编码过滤器-->
  <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>
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!--前端控制器-->
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- contextConfigLocation配置springmvc加载的配置文件(配置处理器映射器、适配器等等)
          若不配置，默认加载WEB-INF/servlet名称-servlet(springmvc-servlet.xml)
        -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring/springmvc.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <!--
    第一种:*.action,访问以.action三结尾，由DispatcherServlet进行解析
    第二种:/,所有访问的地址由DispatcherServlet进行解析，对静态文件的解析需要配置不让DispatcherServlet进行解析，
            使用此种方式和实现RESTful风格的url
    第三种:/*,这样配置不对，使用这种配置，最终要转发到一个jsp页面时，仍然会由DispatcherServlet解析jsp地址，
            不能根据jsp页面找到handler，会报错
    -->
    <url-pattern>*.action</url-pattern>
  </servlet-mapping>

  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>

</web-app>

编写Controller(就是Hnadler)

• ItemsController

package club.krislin.controller;

import club.krislin.po.ItemsCustom;
import club.krislin.service.ItemsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import java.util.List;

/**
 * @Package club.krislin.controller
 * @ClassName ItemsController
 * @Description TODO
 * @Date 19/12/25 10:40
 * @Author LIM
 * @Version V1.0
 */
@Controller
@RequestMapping("/items")
public class ItemsController {
    @Autowired
    private ItemsService itemsService;

    /**
     * 商品查询列表
     * @return
     * @throws Exception
     */
    @RequestMapping("/queryItems")
    public ModelAndView queryItems() throws Exception{
        //调用service查询数据库,查找商品列表
        List<ItemsCustom> itemsList = itemsService.findItemsList(null);
        //返回ModelAndView
        ModelAndView modelAndView = new ModelAndView();
        //相当于request的setAttribute方法,在jsp页面中通过itemsList取数据
        modelAndView.addObject("itemsList",itemsList);

        //指定视图
        //下边的路径，如果在视图解析器中配置jsp的路径前缀和后缀，修改为items/itemsList
        //modelAndView.setViewName("/WEB-INF/jsp/items/itemsList.jsp");
        //下边的路径配置就可以不在程序中指定jsp路径的前缀和后缀
        modelAndView.setViewName("/items/itemsList");

        return modelAndView;
    }

    /**
     * 商品信息修改页面显示
     * @return
     */
    @RequestMapping(value = "/editItems?id={id}",method={RequestMethod.POST, RequestMethod.GET})
    public ModelAndView editItems(@PathVariable String id) throws Exception {
        // 调用service根据商品id查询商品信息
        ItemsCustom itemsCustom = itemsService.findItemsById(Integer.parseInt(id));
        // 放回ModelAndView
        ModelAndView modelAndView = new ModelAndView();
        //将商品信息放在modelAndView中
        modelAndView.addObject("itemsCustom",itemsCustom);
        // 商品修改页面
        modelAndView.setViewName("items/editItems");
        return modelAndView;
    }

    /**
     * 商品信息修改提交
     * @param id
     * @param itemsCustom
     * @return
     * @throws Exception
     */
    @RequestMapping("/editItemsSubmit")
    public ModelAndView editItemsSubmit(Integer id, ItemsCustom itemsCustom) throws Exception {
        //调用service更新商品信息，页面需要将商品信息传到此方法
        itemsService.updateItems(id,itemsCustom);
        ModelAndView modelAndView = new ModelAndView();
        // 返回一个成功的界面
        modelAndView.setViewName("success");
        return modelAndView;
    }
}

编写jsp

• itemList.jsp

<%--
  Created by IntelliJ IDEA.
  User: LIM
  Date: 19/12/25
  Time: 10:49
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt"  prefix="fmt"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <title>查询商品列表</title>
</head>
<body>
<form action="${pageContext.request.contextPath}/items/queryItems.action" method="post">
    查询条件:
    <table width="100%" border="1">
        <tr>
            <td><input type="submit" value="查询"></td>
        </tr>
    </table>
    商品列表:
    <table width="100%" border="1">
        <tr>
            <td>商品名称</td>
            <td>商品价格</td>
            <td>生产日期</td>
            <td>商品描述</td>
            <td>操作</td>
        </tr>
        <c:forEach items="${itemsList}" var="item">
            <tr>
                <td>${item.name}</td>
                <td>${item.price}</td>
                <td><fmt:formatDate value="${item.createtime}" pattern="yyyy-MM-dd HH:mm:ss"/></td>
                <td>${item.detail}</td>
                <td><a href="${pageContext.request.contextPath}/items/editItems.action?id=${item.id}">修改</a></td>
            </tr>
        </c:forEach>
    </table>
</form>
</body>
</html>