maven项目创建4 dao层整合

Posted 2022-02-01 dianzan

项目配置文件要放在打包成war包的web项目中，注配置文件在去copy逆向工程

 

 创建文件步骤

1    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>
</configuration>

2    applicationContext-dao.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">

    <!-- 数据库连接池 -->
    <!-- 加载配置文件 -->
    <context:property-placeholder location="classpath:resource/*.properties" />
    <!-- 数据库连接池 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
        destroy-method="close">
        <property name="url" value="$jdbc.url" />
        <property name="username" value="$jdbc.username" />
        <property name="password" value="$jdbc.password" />
        <property name="driverClassName" value="$jdbc.driver" />
        <property name="maxActive" value="10" />
        <property name="minIdle" value="5" />
    </bean>
    <!-- 配置sqlsessionFactory -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
        <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 配置扫描包，加载mapper代理对象 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.taotao.mapper"></property>
    </bean>
</beans>

 

 

3  db.properties   注：配置连接数据库，密码等

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.25.134:3306/taotao?characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456

 

 接下来配置其余两块

配置属性，注：进入class内部copy全路径

 

org.mybatis.spring.SqlSessionFactoryBean.class去掉.class

配置属性

 

 

配置属性