0
点赞
收藏
分享

微信扫一扫

springmvc和mybaits整合案例

springmvc和mybaits整合

整合思路

一、整合dao层

mybatis与spring的整合,最终目的是通过spring管理mapper接口.
使用mapper的扫描器自动扫描mapper接口在spring中进行注册。

二、整合Service层

通过spring管理Service接口
使用配置的方式将Service接口配置在spring配置文件中
这一步还需要实现事务控制

三、整合springmvc

由于springmvc是spring的子模块,所有 不需要整合。

环境准备

相关工具版本:

jdk::1.8.0_102
mysql:5.6
开发工具:MyEclipse 14
服务器:apache-tomcat-7.0.42
spring版本:spring-framework-4.2.1.RELEASE-dist
mybatis版本:mybatis-3.4.4

所需jar包:

数据库驱动jar包——数据库连接驱动
mybatis的jar包——mybatis-all​
mybatis与spring整合包——mybatis-spring-1.3.1.jar​
log4j包——log4j-1.2.17.jar​
commons-logging-1.1.1.jar——日志jar​
数据库连接池(c3p0)jar——c3p0-0.9.2.1​
mchange-commons-java-0.2.3.4.jar——c3p0搭配jar​
spring所有jar——spring-all-jar​
jstl标签库——jstl的jar
org.aspectj.weaver-1.6.8.RELEASE.jar
org.aopalliance-1.0.0.jar


构建工程

创相关的文件夹

工程结构

springmvc和mybaits整合案例_mybatis

db.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/MyBatis?useUnicode=true&characterEncoding=UTF8
jdbc.username=root
jdbc.password=123456


log4j.properties

#Global logging configuration

log4j.rootLogger=DEBUG, stdout
# MyBatis logging configuration...
log4j.logger.org.mybatis.example.BlogMapper=TRACE
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n


整合dao

创建相关配置文件

SqlMapConfig.xml

在config文件下创建一个名为mybatis的文件夹,在mybatis文件夹内创建SqlMapConfig.xml,并把一些可以配置的信息配置好。
<?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>
<!-- 配置全局setting
根据需要配置
-->
<!-- 配置别名 -->
<typeAliases>

<!-- 批量定义别名
指定包名,MyBatis会自动扫描包内类,自动定义别名,别名就是类名,首字母不区分大小写
-->
<package name="com.ld.ssm.po"/>
</typeAliases>
<!-- 配置mapper
这个案例使用spring和mybatis的整合包进行mapper扫描,这里不需要配置
不过必须遵循一定规则:
mapper.xml与mapper.java同名且在同一个目录
-->
<!-- <mappers>
<package name="com.hl.ld.mapper.UserMapper"/>
</mappers> -->
</configuration>


applicationContext-dao.xml


config文件中创建spring文件夹,在spring文件夹创建applicationContext-dao.xml,这个配置文件中需要配置数据源、SqlSessionFactory以及mapper扫描器。
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- 加载数据库配置信息 -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 数据源配置 -->
<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="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean>


<!-- SqlSessionFactory配置
-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 加载mybatis的配置文件 -->
<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
<!-- 数据源 -->
<property name="dataSource" ref="dataSource"></property>
</bean>


<!-- 自动扫描mapper接口
也需要遵循mapper开发规范
sqlSessionFactoryBeanName
-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 指定扫描的包名
扫描多个包用半角逗号隔开
获取mapper时是mapper接口名的首字母小写
-->
<property name="basePackage" value="com.ld.ssm.mapper"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>

</beans>


逆向工程生成文件

通过逆向工程生成mapper、mapper.xml、po类等文件

逆向工程操作请参考——mybatis逆向工程操作
将逆向工程得到的文件分别拷贝到相应目录下,结果如下

springmvc和mybaits整合案例_spring_02

自定义商品查询mapper和相应映射文件

为了提高系统的扩展性,可以对原生po进行扩展,然后对使用包装对象对po类进行包装

扩展类ItemsCustomer .java

package com.ld.ssm.po;
/**
* 商品信息的扩展类
* @author 浪丶荡
*
*/
public class ItemsCustomer extends Items{

//添加扩展属性

}


包装类:ItemsQuerVo.java

package com.ld.ssm.po;
/**
* 商品信息的包装类
* @author 浪丶荡
*
*/
public class ItemsQuerVo{

private Items items;

private ItemsCustomer itemsCustomer;

public ItemsCustomer getItemsCustomer() {
return itemsCustomer;
}

public void setItemsCustomer(ItemsCustomer itemsCustomer) {
this.itemsCustomer = itemsCustomer;
}

public Items getItems() {
return items;
}

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


ItemsMapperCustomer.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="com.ld.ssm.mapper.ItemsMapperCustomer">
<!-- 定义商品查询的sql片段 内容就是商品查询条件-->
<sql id="query_items_where">
<!-- 动态参数 通过if判断,满足条件进行sql拼接-->
<!-- 这里的查询条件是通过包装类ItemsQuerVo中的itemsCustomer属性进行传递-->
<if test="itemsCustomer!=null">
<if test="itemsCustomer.name!=null and itemsCustomer!=''">
items.name LIKE '%${itemsCustomer.name}%'
</if>
</if>
items.name LIKE '%旺%'
</sql>
<!-- 商品列表查询
parameterType:传入参数,建议使用包装对象
resultType:建议使用扩展对象
-->
<select id="findItemsList" parameterType="com.ld.ssm.po.ItemsQuerVo"
resultType="com.ld.ssm.po.ItemsCustomer">
SELECT * FROM items
<where>
<include refid="query_items_where"></include>
</where>

</select>
</mapper>


ItemsMapperCustom.java

package com.ld.ssm.mapper;

import java.util.List;

import com.ld.ssm.po.ItemsCustomer;
import com.ld.ssm.po.ItemsQuerVo;


public interface ItemsMapperCustomer {
//查询商品信息
public List<ItemsCustomer> findItemsList(ItemsQuerVo itemsQuerVo)throws Exception;
}


整合Service层

定义接口

package com.ld.ssm.service;

import java.util.List;

import com.ld.ssm.po.ItemsCustomer;
import com.ld.ssm.po.ItemsQuerVo;

/**
* 商品管理Service
* @author 浪丶荡
*
*/
public interface ItemsService {

//商品查询列表
public List<ItemsCustomer> findItemsList(ItemsQuerVo itemsQuerVo)throws Exception;
}


接口实现

package com.ld.ssm.service.impl;

import java.util.List;

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

import com.ld.ssm.mapper.ItemsMapperCustomer;
import com.ld.ssm.po.ItemsCustomer;
import com.ld.ssm.po.ItemsQuerVo;
import com.ld.ssm.service.ItemsService;

public class ItemsServiceImpl implements ItemsService {

//注入itemsMapperCustomer
@Autowired
private ItemsMapperCustomer itemsMapperCustomer;
@Override
public List<ItemsCustomer> findItemsList(ItemsQuerVo itemsQuerVo)
throws Exception {
return itemsMapperCustomer.findItemsList(itemsQuerVo);
}

}


创建applicationContext-service.xml

配置Service

<?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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<bean id="itemsService" class="'com.ld.ssm.service.impl.ItemsServiceImpl"></bean>

</beans>


实现事务控制

创建applicationContext-transaction.xml

使用spring的声明式事务控制方法进行配置
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- 事务管理器
对于mybatis操作数据库事务控制,spring使用jdbc的事务控制
-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 配置数据源 -->
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 传播行为 -->
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="insert*" propagation="REQUIRED"/>
<!-- 支持事务,没有事务也行 -->
<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(* com.ld.ssm.service.impl.*.*(..))"/>
</aop:config>
</beans>


整合springmvc

创建springmvc.xml文件

springmvc.xml文件中配置处理器映射器、处理器适配器、视图解析器
<?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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- mvc注解驱动
代替处理器映射器、处理器适配器的配置
-->
<mvc:annotation-driven>


</mvc:annotation-driven>
<!-- 对于注解的Handler可以单个配置
实际开发中建议使用组件扫描
-->
<context:component-scan base-package="com.ld.springmvc.controller"/>
<!-- 视图解析器
配置解析jsp的视图解析器,默认使用jstl标签
-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<!-- 配置jsp路径前缀 -->
<property name="prefix" value="/WEB-INF/jsp" />
<!-- 配置jsp路径后缀 -->
<property name="suffix" value=".jsp" />
</bean>
</beans>


配置前端控制器

在web.xml中配置前端控制器
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0"
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_3_0.xsd">
<!-- springmvc前端控制器 -->
<servlet>
<servlet-name>beautiful</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置springmvc加载的配置文件(配置处理器映射器、适配器等) -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springmvc.xml</param-value>
</init-param>
</servlet>

<servlet-mapping>
<servlet-name>beautiful</servlet-name>
<url-pattern>*.action</url-pattern>
</servlet-mapping>

</web-app>


编写处理器(Controller即Handler)

注解方式开发Controller
package com.ld.ssm.controller;

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

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

import com.ld.ssm.po.ItemsCustomer;
import com.ld.ssm.service.ItemsService;

/**
* 商品的Controller
* @author 浪丶荡
*
*/
@Controller //标识它是一个控制器
public class ItemsController {

@Autowired
private ItemsService itemsService;

//商品查询
@RequestMapping("/findItemsList.action")//建议将url与方法名一致。实现的是方法findItemsList与url进行映射
public ModelAndView findItemsList()throws Exception{

List<ItemsCustomer> itemsList = itemsService.findItemsList(null);
ModelAndView modelAndView = new ModelAndView();
//类似于request的setAttribute
modelAndView.addObject("itemsList", itemsList);
//指定视图

modelAndView.setViewName("/items/itemsList");
return modelAndView;
}
//商品修改
//商品删除
}


编写前端页面

位置:

springmvc和mybaits整合案例_mvc_03
<%@ page language="java" import="java.util.*"  pageEncoding="UTF-8"%>
<%
response.setContentType("text/html;charset = GB2312");
request.setCharacterEncoding("gb2312");
%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">

<title>查询商品列表</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

</head>

<body>
<form action="${pageContext.request.contextPath }/item/queryItem.action" method="post">
查询条件
<table width="100%" border="1">
<tr>
<td><input type="submit" value="查询" /></td>
</tr>
</table>
商品列表:
<table width="100%" border="1">
<tr>
<td>商品名称</td>
<td>商品价格</td>
<td>生产日期</td>
<td>商品描述</td>
<td>操作</td>
</tr>
<c:forEach items="${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="${pageContext.request.contentType }/item/editItem.action?id=${item.id}">修改</a></td>
</tr>
</c:forEach>
</table>
</form>
</body>
</html>


加载spring容器

加载下列文件

springmvc和mybaits整合案例_spring mvc_04

添加spring容器监听器

在web.xml中最上边,添加spring容器监听器
<!-- 加载spring容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<!-- 通配符方式加载 -->
<param-value>/WEB-INF/classes/spring/applicationContext-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

调试:访问路径

http://127.0.0.1/springmvc_mybatis/findItemsList.action


结果

springmvc和mybaits整合案例_mybatis_05

终于还是出来了!

需要源码的加QQ群:511906138联系管理员



举报

相关推荐

0 条评论