springmvc与mybatis的整合项目

时间：2021-07-12 12:25:48

1.搭建开发环境：

1）导入jar包 

spring的核心包+事务包+jdbc包+orm包+springmvc包

mabatis的jar包+spring与mybatis整合的包(由mybatis提供)

所需要的jar包：

数据库驱动包：mysql5.1

mybatis的jar包

mybatis和spring整合包

log4j包

dbcp数据库连接池包

spring3.2所有jar包

jstl包

2）数据库环境准备：使用

springmvc与mybatis的整合项目

3）工程结构图 关于如何使用mybaits逆向工程生成配置文件见我的博客地址：mybatis逆向工程详解

springmvc与mybatis的整合项目

2.mybatis的核心配置文件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>
	<!-- 由于 spring与mybatis的整合中使用了mapper扫描,这里就不用配置了,但是要保证mapper.xml和mapper.java要在同目录 同名 -->
</configuration>
3.bean-dao.xml文件的配置 

<?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:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    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/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
 		http://www.springframework.org/schema/tx/spring-tx.xsd
 		http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        ">
        <!-- 1.配置数据源 -->
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        	<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/mybatis"></property>
			<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
			<property name="user" value="root"></property>
			<property name="password" value="169500"></property>
			<property name="initialPoolSize" value="3"></property>
			<property name="maxPoolSize" value="6"></property>
        </bean>
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        	<!-- 加载配置文件 -->
        	<property name="configLocation" value="classpath:mybatis/sqlMapConfig.xml"></property>
        	<!-- 数据源 -->
        	<property name="dataSource" ref="dataSource"></property>
        </bean>
        <!-- mapper扫描器 -->
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        	<!-- 扫描包 -->
        	<property name="basePackage" value="cn.itcast.ssm.mapper"></property>
        	<!-- 注入sqlSessionFactoryBeanName -->
        	<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
        </bean>
</beans>
3.逆向工程生成po类以及mapper(单表的增删改查)

springmvc与mybatis的整合项目


将生成的文件拷贝到工程中.

4.手动定义商品查询mapper

1)包装类ItemsCustomer继承Items即可

<span style="font-family:Courier New;font-size:14px;">public class ItemsCustomer extends Items{

}</span>
2）包装类ItemsQueryVO 

<span style="font-family:Courier New;font-size:14px;">package cn.itcast.ssm.po;

import java.util.List;

public class ItemsQueryVo {
	private Items items;

	private ItemsCustomer itemsCustomer;
	//省略getter setter

}
</span>

3)针对综合查询mapper，一般情况会有关联查询，建议自定义mapper

ItemsMapperCustomer.xml 输入的是包装类型的 返回的也是包装类型的 这样便于维护

<span style="font-family:Courier New;font-size:14px;"><?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.itcast.ssm.mapper.ItemsMapperCustomer">
	<sql id="query_items_where">
		<if test="itemsCustomer!=null">
			<if test="itemsCustomer.name!=null and itemsCustomer.name!=''">
				items.name like "%${itemsCustomer.name}%"
			</if>
		</if>
	</sql>
	<select id="findItemsList" parameterType="cn.itcast.ssm.po.ItemsQueryVo" resultType="cn.itcast.ssm.po.ItemsCustomer">
		select * from items
		<where>
			<include refid="query_items_where"></include>
		</where>
	</select>
</mapper></span>
ItemsMapperCustomer.java接口 

<span style="font-family:Courier New;font-size:14px;">public interface ItemsMapperCustomer {
	public List<ItemsCustomer> findItemsList(ItemsQueryVo itemsQueryVo);
}</span>
5.整合service

ItemsService

public interface ItemsService {
	/**
	 * 查询所有的商品信息
	 * @param itemsQueryVo
	 * @return
	 */
	public List<ItemsCustomer> findItemsList(ItemsQueryVo itemsQueryVo)throws Exception;
	/**
	 * 根据商品id查询商品
	 * @param id
	 * @return
	 */
	public ItemsCustomer findItemsById(Integer id) throws Exception;
	/**
	 * 更新商品信息
	 * @param id
	 * @param itemsCustomer
	 */
	public void updateItems(Integer id,ItemsCustomer itemsCustomer) throws Exception;
}
ItemsServiceImpl 

public class ItemsServiceImpl implements ItemsService {
	@Autowired
	private ItemsMapperCustomer itemsMapperCustomer;
	@Autowired
	private ItemsMapper itemsMapper;
	public List<ItemsCustomer> findItemsList(ItemsQueryVo itemsQueryVo) {
		return itemsMapperCustomer.findItemsList(itemsQueryVo);
	}
	public ItemsCustomer findItemsById(Integer id) throws Exception {
		 Items items = itemsMapper.selectByPrimaryKey(id);
		 ItemsCustomer itemsCustomer=new ItemsCustomer();
		 //将items中的属性拷贝到itemsCustomer
		 BeanUtils.copyProperties(items, itemsCustomer);
		 return itemsCustomer;
	}
	public void updateItems(Integer id, ItemsCustomer itemsCustomer) {
		//添加业务校验,通常在service接口对关键参数进行校验
		//检验id是否为空,如果为空则抛出异常
		itemsCustomer.setId(id);
		//这个方法要求必须传入id
		itemsMapper.updateByPrimaryKeyWithBLOBs(itemsCustomer);
	}

}

bean-service.xml中进行配置 

<bean id="itemsService" class="cn.itcast.ssm.service.impl.ItemsServiceImpl"></bean>
6.事务控制bean-transation.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:p="http://www.springframework.org/schema/p"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    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/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
 		http://www.springframework.org/schema/tx/spring-tx.xsd
 		http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        ">
        <!-- 事务管理器 -->
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        	<property name="dataSource" ref="dataSource"></property>
        </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="REQUIRED" read-only="true"/>
        		<tx:method name="get*" propagation="REQUIRED" read-only="true"/>
        		<tx:method name="select*" propagation="REQUIRED" read-only="true"/>
        	</tx:attributes>
        </tx:advice>
        <aop:config>
        	<aop:advisor advice-ref="txAdvice" pointcut="execution(* cn.itcast.ssm.service.impl.*.*(..))"/>
        </aop:config>
</beans>
7.整合springmvc 

<?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:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx" 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/aop
        http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/tx
 		http://www.springframework.org/schema/tx/spring-tx.xsd
 		http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc.xsd
        ">
	<mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven>
	<!-- 处理器映射器 -->
	<!-- 处理器适配器 -->
	<!-- 控制器handler -->
	<!-- 视图解析器 -->
	<context:component-scan base-package="cn.itcast.ssm.controller"></context:component-scan>
	<mvc:annotation-driven></mvc:annotation-driven>
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
	<!-- 配置类型转化器 --><!-- 校验器注册到处理器适配器中 -->
	<mvc:annotation-driven conversion-service="conversionService" validator="validator"></mvc:annotation-driven>
</beans>

8.编写前端控制器 

package cn.itcast.ssm.controller;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

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.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import cn.itcast.ssm.po.ItemsCustomer;
import cn.itcast.ssm.po.ItemsQueryVo;
import cn.itcast.ssm.service.ItemsService;
import cn.itcast.ssm.validation.ValidationGroup1;

@Controller
@RequestMapping("/items")
public class ItemsController {
	@Autowired
	private ItemsService itemsService;

	@RequestMapping("/queryItems")
	public ModelAndView queryItems(ItemsQueryVo itemsQueryVo) throws Exception{
		List<ItemsCustomer> itemsList = itemsService.findItemsList(itemsQueryVo);
		ModelAndView modelAndView=new ModelAndView();
		modelAndView.addObject("itemsList", itemsList);
		modelAndView.setViewName("itemsList");
		return modelAndView;
	}

}

9.编写jsp

10.将mapper、service、controller加载到spring容器中。

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
  <display-name></display-name>
  <!-- 1.spring配置 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>/WEB-INF/classes/spring/bean-*.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
  <servlet>
  	<servlet-name>springmvc</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<!-- 加载配置文件 -->
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>/WEB-INF/classes/spring/springmvc.xml</param-value>
  	</init-param>
  </servlet>	
  <servlet-mapping>
  	<servlet-name>springmvc</servlet-name>
  	<url-pattern>*.action</url-pattern>
  </servlet-mapping>

	<!-- post乱码过虑器 -->
	<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>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>
11.启动服务器 访问

springmvc与mybatis的整合项目


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