SpringMVC, Spring和Mybatis整合案例一

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SpringMVC, Spring和Mybatis整合案例一

一准备工作

包括：spring（包括springmvc）、mybatis、mybatis-spring整合包、数据库驱动、第三方连接池。

二整合思路

Dao层：

　　1、SqlMapConfig.xml，空文件即可。需要文件头。

　　2、applicationContext-dao.xml。

　　　　a)数据库连接池

　　　　b)SqlSessionFactory对象，需要spring和mybatis整合包下的。

　　　　c)配置mapper文件扫描器。

Service层：

　　1、applicationContext-service.xml包扫描器，扫描@service注解的类。

　　2、applicationContext-trans.xml配置事务。

表现层：

　　Springmvc.xml

　　　　1、包扫描器，扫描@Controller注解的类。

　　　　2、配置注解驱动。

　　　　3、视图解析器

Web.xml

　　配置前端控制器

2.1 Dao层配置

　　1.在classpath下创建mybatis/sqlMapConfig.xml, 其中内容如下

<?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>
</configuration>

　　2. 在classpath下创建spring/applicationContext-dao.xml

　　其中需要配置:数据源(databases), sql回话工厂(sqlSessionFactory), mapper扫描器

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
   xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
   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/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
   http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
   http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

   
   <context:property-placeholder location="classpath:db.properties"/>
   
   <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
       <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="10" />
       <property name="maxIdle" value="5" />
   </bean>

   
   <bean id="" class="org.mybatis.spring.SqlSessionFactoryBean">
       
       <property name="dataSource" ref="dataSource"></property>
       
       <property name="configLocation" value="classpath:mybatis/sqlMapConfig.xml"></property>
   </bean>

   
   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
       
       <property name="basePackage" value="cn.rodge.ssm.mapper"></property>
   </bean>

</beans>

　　3. 在classpath下创建db.properties数据库链接信息的舒心文件

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/springmvc?characterEncoding=utf-8
jdbc.username=root
jdbc.password=luoji1025

2.2 Service层配置

　　1.在classpath下创建spring/applicationContext-service.xml文件,其中内容如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
   xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
   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/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
   http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
   http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

   
   <context:component-scan base-package="cn.rodge.ssm.service"></context:component-scan>
</beans>

　　2.配置事务, 在classpath下配置spring/applicationContext-transaction.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
   xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
   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/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
   http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
   http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

   
   <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
       
       <property name="dataSource" ref="dataSource"></property>
   </bean>
   
   <tx:advice id="txAdvice" transaction-manager="transactionManager">
       <tx:attributes>
           
           <tx:method name="save*" propagation="REQUIRED" />
           <tx:method name="insert*" propagation="REQUIRED" />
           <tx:method name="delete*" 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:attributes>
   </tx:advice>
   
   <aop:config>
       <aop:advisor advice-ref="txAdvice" pointcut="execution(* cn.rodge.ssm.service.*.*(..))"/>
   </aop:config>
</beans>

2.3 Web层配置

　　在classpath下配置spring/springmvc.xml配置文件

　　主要配置:注解扫描, 注解驱动(可替代处理器映射器和处理器适配器的配置), 试图解析器, 日期转换器

<?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:p="http://www.springframework.org/schema/p"
   xmlns:context="http://www.springframework.org/schema/context"
   xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

   
   <context:component-scan base-package="cn.rodge.ssm.controller"></context:component-scan>

   
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
       
       <property name="prefix" value="/WEB-INF/jsp/"></property>
       
       <property name="suffix" value=".jsp"></property>
    </bean>

   
   <mvc:annotation-driven conversion-service="conversionService"/>

    
    <bean id="conversionService" class="org.springframework.format.support.FormattingConversionServiceFactoryBean">
       <property name="converters">
           <set>
               <bean class="cn.rodge.ssm.converter.DateConverter"></bean>
           </set>
       </property>
    </bean>
</beans>

2.4 web.xml中前端处理器的配置

　　在WEB-INF目录下的web.xml中配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>springmvc_mybatis</display-name>
<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>


<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>


<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>


<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/springmvc.xml</param-value>
   </init-param>
</servlet>
<servlet-mapping>
   <servlet-name>springmvc</servlet-name>
   <url-pattern>*.action</url-pattern>
</servlet-mapping>
</web-app>

2.5 逆向工程创建dao层(逆向工程的创建详见我的博客中的"mybatis逆向工程")

　　1.接口类

package cn.rodge.ssm.mapper;

import cn.rodge.ssm.pojo.Items;
import cn.rodge.ssm.pojo.ItemsExample;
import java.util.List;
import org.apache.ibatis.annotations.Param;

public interface ItemsMapper {
    int countByExample(ItemsExample example);

    int deleteByExample(ItemsExample example);

    int deleteByPrimaryKey(Integer id);

    int insert(Items record);

    int insertSelective(Items record);

    List<Items> selectByExampleWithBLOBs(ItemsExample example);

    List<Items> selectByExample(ItemsExample example);

    Items selectByPrimaryKey(Integer id);

    int updateByExampleSelective(@Param("record") Items record, @Param("example") ItemsExample example);

    int updateByExampleWithBLOBs(@Param("record") Items record, @Param("example") ItemsExample example);

    int updateByExample(@Param("record") Items record, @Param("example") ItemsExample example);

    int updateByPrimaryKeySelective(Items record);

    int updateByPrimaryKeyWithBLOBs(Items record);

    int updateByPrimaryKey(Items record);
}

　　2.配置文件

<?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="cn.rodge.ssm.mapper.ItemsMapper" >
<resultMap id="BaseResultMap" type="cn.rodge.ssm.pojo.Items" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="name" property="name" jdbcType="VARCHAR" />
    <result column="price" property="price" jdbcType="REAL" />
    <result column="pic" property="pic" jdbcType="VARCHAR" />
    <result column="createtime" property="createtime" jdbcType="TIMESTAMP" />
</resultMap>
<resultMap id="ResultMapWithBLOBs" type="cn.rodge.ssm.pojo.Items" extends="BaseResultMap" >
    <result column="detail" property="detail" jdbcType="LONGVARCHAR" />
</resultMap>
<sql id="Example_Where_Clause" >
    <where >
      <foreach collection="oredCriteria" item="criteria" separator="or" >
        <if test="criteria.valid" >
          <trim prefix="(" suffix=")" prefixOverrides="and" >
            <foreach collection="criteria.criteria" item="criterion" >
              <choose >
                <when test="criterion.noValue" >
                  and ${criterion.condition}
                </when>
                <when test="criterion.singleValue" >
                  and ${criterion.condition} #{criterion.value}
                </when>
                <when test="criterion.betweenValue" >
                  and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
                </when>
                <when test="criterion.listValue" >
                  and ${criterion.condition}
                  <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," >
                    #{listItem}
                  </foreach>
                </when>
              </choose>
            </foreach>
          </trim>
        </if>
      </foreach>
    </where>
</sql>
<sql id="Update_By_Example_Where_Clause" >
    <where >
      <foreach collection="example.oredCriteria" item="criteria" separator="or" >
        <if test="criteria.valid" >
          <trim prefix="(" suffix=")" prefixOverrides="and" >
            <foreach collection="criteria.criteria" item="criterion" >
              <choose >
                <when test="criterion.noValue" >
                  and ${criterion.condition}
                </when>
                <when test="criterion.singleValue" >
                  and ${criterion.condition} #{criterion.value}
                </when>
                <when test="criterion.betweenValue" >
                  and ${criterion.condition} #{criterion.value} and #{criterion.secondValue}
                </when>
                <when test="criterion.listValue" >
                  and ${criterion.condition}
                  <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," >
                    #{listItem}
                  </foreach>
                </when>
              </choose>
            </foreach>
          </trim>
        </if>
      </foreach>
    </where>
</sql>
<sql id="Base_Column_List" >
    id, name, price, pic, createtime
</sql>
<sql id="Blob_Column_List" >
    detail
</sql>
<select id="selectByExampleWithBLOBs" resultMap="ResultMapWithBLOBs" parameterType="cn.rodge.ssm.pojo.ItemsExample" >
    select
    <if test="distinct" >
      distinct
    </if>
    <include refid="Base_Column_List" />
    ,
    <include refid="Blob_Column_List" />
    from items
    <if test="_parameter != null" >
      <include refid="Example_Where_Clause" />
    </if>
    <if test="orderByClause != null" >
      order by ${orderByClause}
    </if>
</select>
<select id="selectByExample" resultMap="BaseResultMap" parameterType="cn.rodge.ssm.pojo.ItemsExample" >
    select
    <if test="distinct" >
      distinct
    </if>
    <include refid="Base_Column_List" />
    from items
    <if test="_parameter != null" >
      <include refid="Example_Where_Clause" />
    </if>
    <if test="orderByClause != null" >
      order by ${orderByClause}
    </if>
</select>
<select id="selectByPrimaryKey" resultMap="ResultMapWithBLOBs" parameterType="java.lang.Integer" >
    select
    <include refid="Base_Column_List" />
    ,
    <include refid="Blob_Column_List" />
    from items
    where id = #{id,jdbcType=INTEGER}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    delete from items
    where id = #{id,jdbcType=INTEGER}
</delete>
<delete id="deleteByExample" parameterType="cn.rodge.ssm.pojo.ItemsExample" >
    delete from items
    <if test="_parameter != null" >
      <include refid="Example_Where_Clause" />
    </if>
</delete>
<insert id="insert" parameterType="cn.rodge.ssm.pojo.Items" >
    insert into items (id, name, price,
      pic, createtime, detail
      )
    values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{price,jdbcType=REAL},
      #{pic,jdbcType=VARCHAR}, #{createtime,jdbcType=TIMESTAMP}, #{detail,jdbcType=LONGVARCHAR}
      )
</insert>
<insert id="insertSelective" parameterType="cn.rodge.ssm.pojo.Items" >
    insert into items
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        id,
      </if>
      <if test="name != null" >
        name,
      </if>
      <if test="price != null" >
        price,
      </if>
      <if test="pic != null" >
        pic,
      </if>
      <if test="createtime != null" >
        createtime,
      </if>
      <if test="detail != null" >
        detail,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        #{id,jdbcType=INTEGER},
      </if>
      <if test="name != null" >
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="price != null" >
        #{price,jdbcType=REAL},
      </if>
      <if test="pic != null" >
        #{pic,jdbcType=VARCHAR},
      </if>
      <if test="createtime != null" >
        #{createtime,jdbcType=TIMESTAMP},
      </if>
      <if test="detail != null" >
        #{detail,jdbcType=LONGVARCHAR},
      </if>
    </trim>
</insert>
<select id="countByExample" parameterType="cn.rodge.ssm.pojo.ItemsExample" resultType="java.lang.Integer" >
    select count(*) from items
    <if test="_parameter != null" >
      <include refid="Example_Where_Clause" />
    </if>
</select>
<update id="updateByExampleSelective" parameterType="map" >
    update items
    <set >
      <if test="record.id != null" >
        id = #{record.id,jdbcType=INTEGER},
      </if>
      <if test="record.name != null" >
        name = #{record.name,jdbcType=VARCHAR},
      </if>
      <if test="record.price != null" >
        price = #{record.price,jdbcType=REAL},
      </if>
      <if test="record.pic != null" >
        pic = #{record.pic,jdbcType=VARCHAR},
      </if>
      <if test="record.createtime != null" >
        createtime = #{record.createtime,jdbcType=TIMESTAMP},
      </if>
      <if test="record.detail != null" >
        detail = #{record.detail,jdbcType=LONGVARCHAR},
      </if>
    </set>
    <if test="_parameter != null" >
      <include refid="Update_By_Example_Where_Clause" />
    </if>
</update>
<update id="updateByExampleWithBLOBs" parameterType="map" >
    update items
    set id = #{record.id,jdbcType=INTEGER},
      name = #{record.name,jdbcType=VARCHAR},
      price = #{record.price,jdbcType=REAL},
      pic = #{record.pic,jdbcType=VARCHAR},
      createtime = #{record.createtime,jdbcType=TIMESTAMP},
      detail = #{record.detail,jdbcType=LONGVARCHAR}
    <if test="_parameter != null" >
      <include refid="Update_By_Example_Where_Clause" />
    </if>
</update>
<update id="updateByExample" parameterType="map" >
    update items
    set id = #{record.id,jdbcType=INTEGER},
      name = #{record.name,jdbcType=VARCHAR},
      price = #{record.price,jdbcType=REAL},
      pic = #{record.pic,jdbcType=VARCHAR},
      createtime = #{record.createtime,jdbcType=TIMESTAMP}
    <if test="_parameter != null" >
      <include refid="Update_By_Example_Where_Clause" />
    </if>
</update>
<update id="updateByPrimaryKeySelective" parameterType="cn.rodge.ssm.pojo.Items" >
    update items
    <set >
      <if test="name != null" >
        name = #{name,jdbcType=VARCHAR},
      </if>
      <if test="price != null" >
        price = #{price,jdbcType=REAL},
      </if>
      <if test="pic != null" >
        pic = #{pic,jdbcType=VARCHAR},
      </if>
      <if test="createtime != null" >
        createtime = #{createtime,jdbcType=TIMESTAMP},
      </if>
      <if test="detail != null" >
        detail = #{detail,jdbcType=LONGVARCHAR},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
</update>
<update id="updateByPrimaryKeyWithBLOBs" parameterType="cn.rodge.ssm.pojo.Items" >
    update items
    set name = #{name,jdbcType=VARCHAR},
      price = #{price,jdbcType=REAL},
      pic = #{pic,jdbcType=VARCHAR},
      createtime = #{createtime,jdbcType=TIMESTAMP},
      detail = #{detail,jdbcType=LONGVARCHAR}
    where id = #{id,jdbcType=INTEGER}
</update>
<update id="updateByPrimaryKey" parameterType="cn.rodge.ssm.pojo.Items" >
    update items
    set name = #{name,jdbcType=VARCHAR},
      price = #{price,jdbcType=REAL},
      pic = #{pic,jdbcType=VARCHAR},
      createtime = #{createtime,jdbcType=TIMESTAMP}
    where id = #{id,jdbcType=INTEGER}
</update>
</mapper>

2.6 service层创建

　　1.创建ItemService接口

package cn.rodge.ssm.service;

import java.util.List;

import cn.rodge.ssm.pojo.Items;
import cn.rodge.ssm.pojo.QueryVo;

/**
* itemsservice层接口
* @author Rodge
*
*/
public interface ItemService {
   //查询所有订单信息
   public List<Items> findAll();
   //根据id查询订单
   public Items findById(int id);
   //更改订单信息
   public void update(Items item);
   //根据条件查询
   public List<Items> findByQueryVo(QueryVo queryVo);

}
　　2.创建ItemService接口的实现类ItemServiceImpl

package cn.rodge.ssm.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import cn.rodge.ssm.mapper.ItemsMapper;
import cn.rodge.ssm.pojo.Items;
import cn.rodge.ssm.pojo.ItemsExample;
import cn.rodge.ssm.pojo.QueryVo;
import cn.rodge.ssm.service.ItemService;
/**
* item业务层实现类
* @author Rodge
*
*/
@Service
public class ItemServiceImpl implements ItemService {
   @Autowired
   private ItemsMapper itemsMapper;

   //查询所有订单
   @Override
   public List<Items> findAll() {
       ItemsExample example = null;
       return itemsMapper.selectByExampleWithBLOBs(example);
   }

   //根据id查询订单
   @Override
   public Items findById(int id) {

       return itemsMapper.selectByPrimaryKey(id);
   }

   //更改订单信息
   @Override
   public void update(Items item) {
       itemsMapper.updateByPrimaryKeySelective(item);
   }
   //根据条件查询
   @Override
   public List<Items> findByQueryVo(QueryVo queryVo) {
       return null;
   }
}

2.7 Controller的创建

package cn.rodge.ssm.controller;

import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import cn.rodge.ssm.pojo.Items;
import cn.rodge.ssm.pojo.QueryVo;
import cn.rodge.ssm.service.ItemService;

/**
* itemsController
* @author Rodge
*
*/
@Controller
public class ItemController {
   @Autowired
   private ItemService itemService;

   @RequestMapping("/itemList.action")
   public String itemList (Model model) {
       //调用业务层查询订单数据
       List<Items> itemList = itemService.findAll();
       //将查询结果保存在model中
       model.addAttribute("itemList", itemList);
       //页面转发
       return "itemList";
   }

   @RequestMapping("/itemEdit.action")
   public ModelAndView itemEdit (HttpServletRequest request) {
       //获取请求id信息
       String idStr = request.getParameter("id");
       int id = Integer.parseInt(idStr);
       //跟局id调用业务层查询对应数据
       Items items = itemService.findById(id);
       //创建modelandview对象
       ModelAndView modelAndView = new ModelAndView();
       //存储查询结果
       modelAndView.addObject("item", items);
       //页面转发
       modelAndView.setViewName("editItem");
       return modelAndView;
   }

   @RequestMapping("/updateitem.action")
   public String updateItem (Items item) {
       //调用业务层修改数据
       itemService.update(item);
       return "itemList";
   }
}

2.8 日期转换器的创建

　　首先, 需要实现Converter接口; 其次, 需要在springmvc.xml文件中配置日期转换器

package cn.rodge.ssm.converter;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.springframework.core.convert.converter.Converter;

public class DateConverter implements Converter<String, Date> {

   @Override
   public Date convert(String date) {
       SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
       try {
           return simpleDateFormat.parse(date);
       } catch (ParseException e) {
           e.printStackTrace();
       }
       return null;
   }

}

2.9 POJO类的创建

　　1. Items.java类

package cn.rodge.ssm.pojo;

import java.util.Date;

public class Items {
    private Integer id;

    private String name;

    private Float price;

    private String pic;

    private Date createtime;

    private String detail;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name == null ? null : name.trim();
    }

    public Float getPrice() {
        return price;
    }

    public void setPrice(Float price) {
        this.price = price;
    }

    public String getPic() {
        return pic;
    }

    public void setPic(String pic) {
        this.pic = pic == null ? null : pic.trim();
    }

    public Date getCreatetime() {
        return createtime;
    }

    public void setCreatetime(Date createtime) {
        this.createtime = createtime;
    }

    public String getDetail() {
        return detail;
    }

    public void setDetail(String detail) {
        this.detail = detail == null ? null : detail.trim();
    }
}

　　2. ItemsExample.java类

package cn.rodge.ssm.pojo;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class ItemsExample {
    protected String orderByClause;

    protected boolean distinct;

    protected List<Criteria> oredCriteria;

    public ItemsExample() {
        oredCriteria = new ArrayList<Criteria>();
    }

    public void setOrderByClause(String orderByClause) {
        this.orderByClause = orderByClause;
    }

    public String getOrderByClause() {
        return orderByClause;
    }

    public void setDistinct(boolean distinct) {
        this.distinct = distinct;
    }

    public boolean isDistinct() {
        return distinct;
    }

    public List<Criteria> getOredCriteria() {
        return oredCriteria;
    }

    public void or(Criteria criteria) {
        oredCriteria.add(criteria);
    }

    public Criteria or() {
        Criteria criteria = createCriteriaInternal();
        oredCriteria.add(criteria);
        return criteria;
    }

    public Criteria createCriteria() {
        Criteria criteria = createCriteriaInternal();
        if (oredCriteria.size() == 0) {
            oredCriteria.add(criteria);
        }
        return criteria;
    }

    protected Criteria createCriteriaInternal() {
        Criteria criteria = new Criteria();
        return criteria;
    }

    public void clear() {
        oredCriteria.clear();
        orderByClause = null;
        distinct = false;
    }

    protected abstract static class GeneratedCriteria {
        protected List<Criterion> criteria;

        protected GeneratedCriteria() {
            super();
            criteria = new ArrayList<Criterion>();
        }

        public boolean isValid() {
            return criteria.size() > 0;
        }

        public List<Criterion> getAllCriteria() {
            return criteria;
        }

        public List<Criterion> getCriteria() {
            return criteria;
        }

        protected void addCriterion(String condition) {
            if (condition == null) {
                throw new RuntimeException("Value for condition cannot be null");
            }
            criteria.add(new Criterion(condition));
        }

        protected void addCriterion(String condition, Object value, String property) {
            if (value == null) {
                throw new RuntimeException("Value for " + property + " cannot be null");
            }
            criteria.add(new Criterion(condition, value));
        }

        protected void addCriterion(String condition, Object value1, Object value2, String property) {
            if (value1 == null || value2 == null) {
                throw new RuntimeException("Between values for " + property + " cannot be null");
            }
            criteria.add(new Criterion(condition, value1, value2));
        }

        public Criteria andIdIsNull() {
            addCriterion("id is null");
            return (Criteria) this;
        }

        public Criteria andIdIsNotNull() {
            addCriterion("id is not null");
            return (Criteria) this;
        }

        public Criteria andIdEqualTo(Integer value) {
            addCriterion("id =", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdNotEqualTo(Integer value) {
            addCriterion("id <>", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdGreaterThan(Integer value) {
            addCriterion("id >", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdGreaterThanOrEqualTo(Integer value) {
            addCriterion("id >=", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdLessThan(Integer value) {
            addCriterion("id <", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdLessThanOrEqualTo(Integer value) {
            addCriterion("id <=", value, "id");
            return (Criteria) this;
        }

        public Criteria andIdIn(List<Integer> values) {
            addCriterion("id in", values, "id");
            return (Criteria) this;
        }

        public Criteria andIdNotIn(List<Integer> values) {
            addCriterion("id not in", values, "id");
            return (Criteria) this;
        }

        public Criteria andIdBetween(Integer value1, Integer value2) {
            addCriterion("id between", value1, value2, "id");
            return (Criteria) this;
        }

        public Criteria andIdNotBetween(Integer value1, Integer value2) {
            addCriterion("id not between", value1, value2, "id");
            return (Criteria) this;
        }

        public Criteria andNameIsNull() {
            addCriterion("name is null");
            return (Criteria) this;
        }

        public Criteria andNameIsNotNull() {
            addCriterion("name is not null");
            return (Criteria) this;
        }

        public Criteria andNameEqualTo(String value) {
            addCriterion("name =", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameNotEqualTo(String value) {
            addCriterion("name <>", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameGreaterThan(String value) {
            addCriterion("name >", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameGreaterThanOrEqualTo(String value) {
            addCriterion("name >=", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameLessThan(String value) {
            addCriterion("name <", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameLessThanOrEqualTo(String value) {
            addCriterion("name <=", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameLike(String value) {
            addCriterion("name like", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameNotLike(String value) {
            addCriterion("name not like", value, "name");
            return (Criteria) this;
        }

        public Criteria andNameIn(List<String> values) {
            addCriterion("name in", values, "name");
            return (Criteria) this;
        }

        public Criteria andNameNotIn(List<String> values) {
            addCriterion("name not in", values, "name");
            return (Criteria) this;
        }

        public Criteria andNameBetween(String value1, String value2) {
            addCriterion("name between", value1, value2, "name");
            return (Criteria) this;
        }

        public Criteria andNameNotBetween(String value1, String value2) {
            addCriterion("name not between", value1, value2, "name");
            return (Criteria) this;
        }

        public Criteria andPriceIsNull() {
            addCriterion("price is null");
            return (Criteria) this;
        }

        public Criteria andPriceIsNotNull() {
            addCriterion("price is not null");
            return (Criteria) this;
        }

        public Criteria andPriceEqualTo(Float value) {
            addCriterion("price =", value, "price");
            return (Criteria) this;
        }

        public Criteria andPriceNotEqualTo(Float value) {
            addCriterion("price <>", value, "price");
            return (Criteria) this;
        }

        public Criteria andPriceGreaterThan(Float value) {
            addCriterion("price >", value, "price");
            return (Criteria) this;
        }

        public Criteria andPriceGreaterThanOrEqualTo(Float value) {
            addCriterion("price >=", value, "price");
            return (Criteria) this;
        }

        public Criteria andPriceLessThan(Float value) {
            addCriterion("price <", value, "price");
            return (Criteria) this;
        }

        public Criteria andPriceLessThanOrEqualTo(Float value) {
            addCriterion("price <=", value, "price");
            return (Criteria) this;
        }

        public Criteria andPriceIn(List<Float> values) {
            addCriterion("price in", values, "price");
            return (Criteria) this;
        }

        public Criteria andPriceNotIn(List<Float> values) {
            addCriterion("price not in", values, "price");
            return (Criteria) this;
        }

        public Criteria andPriceBetween(Float value1, Float value2) {
            addCriterion("price between", value1, value2, "price");
            return (Criteria) this;
        }

        public Criteria andPriceNotBetween(Float value1, Float value2) {
            addCriterion("price not between", value1, value2, "price");
            return (Criteria) this;
        }

        public Criteria andPicIsNull() {
            addCriterion("pic is null");
            return (Criteria) this;
        }

        public Criteria andPicIsNotNull() {
            addCriterion("pic is not null");
            return (Criteria) this;
        }

        public Criteria andPicEqualTo(String value) {
            addCriterion("pic =", value, "pic");
            return (Criteria) this;
        }

        public Criteria andPicNotEqualTo(String value) {
            addCriterion("pic <>", value, "pic");
            return (Criteria) this;
        }

        public Criteria andPicGreaterThan(String value) {
            addCriterion("pic >", value, "pic");
            return (Criteria) this;
        }

        public Criteria andPicGreaterThanOrEqualTo(String value) {
            addCriterion("pic >=", value, "pic");
            return (Criteria) this;
        }

        public Criteria andPicLessThan(String value) {
            addCriterion("pic <", value, "pic");
            return (Criteria) this;
        }

        public Criteria andPicLessThanOrEqualTo(String value) {
            addCriterion("pic <=", value, "pic");
            return (Criteria) this;
        }

        public Criteria andPicLike(String value) {
            addCriterion("pic like", value, "pic");
            return (Criteria) this;
        }

        public Criteria andPicNotLike(String value) {
            addCriterion("pic not like", value, "pic");
            return (Criteria) this;
        }

        public Criteria andPicIn(List<String> values) {
            addCriterion("pic in", values, "pic");
            return (Criteria) this;
        }

        public Criteria andPicNotIn(List<String> values) {
            addCriterion("pic not in", values, "pic");
            return (Criteria) this;
        }

        public Criteria andPicBetween(String value1, String value2) {
            addCriterion("pic between", value1, value2, "pic");
            return (Criteria) this;
        }

        public Criteria andPicNotBetween(String value1, String value2) {
            addCriterion("pic not between", value1, value2, "pic");
            return (Criteria) this;
        }

        public Criteria andCreatetimeIsNull() {
            addCriterion("createtime is null");
            return (Criteria) this;
        }

        public Criteria andCreatetimeIsNotNull() {
            addCriterion("createtime is not null");
            return (Criteria) this;
        }

        public Criteria andCreatetimeEqualTo(Date value) {
            addCriterion("createtime =", value, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeNotEqualTo(Date value) {
            addCriterion("createtime <>", value, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeGreaterThan(Date value) {
            addCriterion("createtime >", value, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeGreaterThanOrEqualTo(Date value) {
            addCriterion("createtime >=", value, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeLessThan(Date value) {
            addCriterion("createtime <", value, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeLessThanOrEqualTo(Date value) {
            addCriterion("createtime <=", value, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeIn(List<Date> values) {
            addCriterion("createtime in", values, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeNotIn(List<Date> values) {
            addCriterion("createtime not in", values, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeBetween(Date value1, Date value2) {
            addCriterion("createtime between", value1, value2, "createtime");
            return (Criteria) this;
        }

        public Criteria andCreatetimeNotBetween(Date value1, Date value2) {
            addCriterion("createtime not between", value1, value2, "createtime");
            return (Criteria) this;
        }
    }

    public static class Criteria extends GeneratedCriteria {

        protected Criteria() {
            super();
        }
    }

    public static class Criterion {
        private String condition;

        private Object value;

        private Object secondValue;

        private boolean noValue;

        private boolean singleValue;

        private boolean betweenValue;

        private boolean listValue;

        private String typeHandler;

        public String getCondition() {
            return condition;
        }

        public Object getValue() {
            return value;
        }

        public Object getSecondValue() {
            return secondValue;
        }

        public boolean isNoValue() {
            return noValue;
        }

        public boolean isSingleValue() {
            return singleValue;
        }

        public boolean isBetweenValue() {
            return betweenValue;
        }

        public boolean isListValue() {
            return listValue;
        }

        public String getTypeHandler() {
            return typeHandler;
        }

        protected Criterion(String condition) {
            super();
            this.condition = condition;
            this.typeHandler = null;
            this.noValue = true;
        }

        protected Criterion(String condition, Object value, String typeHandler) {
            super();
            this.condition = condition;
            this.value = value;
            this.typeHandler = typeHandler;
            if (value instanceof List<?>) {
                this.listValue = true;
            } else {
                this.singleValue = true;
            }
        }

        protected Criterion(String condition, Object value) {
            this(condition, value, null);
        }

        protected Criterion(String condition, Object value, Object secondValue, String typeHandler) {
            super();
            this.condition = condition;
            this.value = value;
            this.secondValue = secondValue;
            this.typeHandler = typeHandler;
            this.betweenValue = true;
        }

        protected Criterion(String condition, Object value, Object secondValue) {
            this(condition, value, secondValue, null);
        }
    }
}

　　3. QueryVo.java类

package cn.rodge.ssm.pojo;

public class QueryVo {
   private Items items;

   public Items getItems() {
       return items;
   }
   public void setItems(Items items) {
       this.items = items;
   }
}

2.10 访问路径

localhost:8080/springmvc_mybatic/itemList.action

查看全文

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原文地址：https://www.cnblogs.com/rodge-run/p/6544930.html

SpringMVC, Spring和Mybatis整合案例一

一 准备工作

二 整合思路

2.1 Dao层配置

2.2 Service层配置

2.3 Web层配置

2.4 web.xml中前端处理器的配置

2.5 逆向工程创建dao层(逆向工程的创建详见我的博客中的"mybatis逆向工程")

2.6 service层创建

2.7 Controller的创建

2.8 日期转换器的创建

2.9 POJO类的创建

2.10 访问路径

一准备工作

二整合思路