Mybatis和Spring环境搭建
由于我们的所编写的dao层、service代码可能前台和后台都需要用到的，因此我们把环境搭建在core模块中
逆向工程
首先，我们要做的就是品牌管理，我们首先来看看原型界面的的品牌管理
涉及到的数据库表在我们的powerdesigner中就已经定义过了
我们来看一下对应数据库表的数据
添加逆向工程插件
<build>
<finalName>zhongfucheng</finalName>
<plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
</plugin>
</plugins>
</build>编写逆向工程文件
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE generatorConfiguration PUBLIC
"-//mybatis.org//DTD MyBatis Generator Configuration
1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"
>
<generatorConfiguration>
<!-- 制定mysql的驱动包的路径 千万别放中文路径下 -->
<classPathEntry location="F:传智168期JAVA传智168期JAVA移动商城shoprepositoryshoprepository
epositorycomoracleojdbc1410.2.0.2.0ojdbc14-10.2.0.2.0.jar" />
<!-- 配置数据源和生成的代码所存放的位置 -->
<context id="context1">
<commentGenerator>
<!-- 是否取消注释 -->
<property name="suppressAllComments" value="true" />
<!-- 是否生成注释代时间戳 -->
<property name="suppressDate" value="true" />
</commentGenerator>
<jdbcConnection driverClass="oracle.jdbc.OracleDriver"
connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:ZHONGFUCHENG" userId="zhongfucheng"
password="zhong" />
<!-- 所生成的实体类的位置默认资源包src -->
<javaModelGenerator targetPackage="com.rl.ecps.model" targetProject="src/main/java" />
<!-- 所生成的sqlMap的影射文件的位置,默认资源包src -->
<sqlMapGenerator targetPackage="com.rl.ecps.sqlMap" targetProject="src/main/java" />
<!-- 为哪些表生成代码 tableName:表名 schema:不用填写 -->
<table schema="" tableName="eb_brand" enableCountByExample="false"
enableUpdateByExample="false" enableDeleteByExample="false"
enableSelectByExample="false" selectByExampleQueryId="false"
>
</table>
</context>
</generatorConfiguration>
生成的文件：
sqlMapping映射文件也算是一种资源文件把，因此我把它移到resources中了
编写Mybatis配置文件
sqlMapConfig.xml
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<mappers>
<mapper resource="sqlMap/EbBrandMapper.xml"/>
</mappers>
</configuration>
创建beans.xml文件
<?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: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/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/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
<!--开启注解-->
<context:component-scan base-package="com.rl.ecps"/>
<!--配置连接池-->
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.OracleDriver"></property>
<property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:ZHONGFUCHENG"></property>
<property name="username" value="zhongfucheng"></property>
<property name="password" value="zhong"></property>
</bean>
<!--配置sessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:sqlMapConfig.xml"></property>
</bean>
<!--配置事务管理器-->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!--配置事务具体方法-->
<tx:advice id="txAdive" transaction-manager="txManager">
<tx:attributes>
<tx:method name="save*" propagation="REQUIRED"/>
<tx:method name="update*" propagation="REQUIRED"/>
<tx:method name="add*" propagation="REQUIRED"/>
<tx:method name="modify*" propagation="REQUIRED"/>
<tx:method name="delete*" propagation="REQUIRED"/>
<tx:method name="remove*" propagation="REQUIRED"/>
<tx:method name="select*" read-only="true"/>
<tx:method name="get*" read-only="true"/>
</tx:attributes>
</tx:advice>
<!--配置切面-->
<aop:config>
<aop:advisor advice-ref="txAdive" pointcut="execution(* com.rl.ecps.service..*.*(..))"/>
</aop:config>
</beans>添加log4j
log4j.properties
log4j.rootLogger=DEBUG, Console
#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG
Dao层
编写Dao接口
interface EbBrandDao {
void saveBrand(EbBrand brand);
EbBrand getBrandById(Long brandId);
void updateBrand(EbBrand brand);
void deleteBrand(Long brandId);
List<EbBrand> selectBrand();
List<EbBrand> selectBrandByName(String brandName);
}
编写Dao实现
/**
* 继承SqlSessionDaoSupport能够得到sessionFactory的引用，非常方便！
*/
@Repository
public class EbBrandDaoImpl extends SqlSessionDaoSupport implements EbBrandDao {
String nameSpace = "com.rl.ecps.sqlMap.EbBrandMapper.";
public void saveBrand(EbBrand brand) {
this.getSqlSession().insert(nameSpace + "insert", brand);
}
public EbBrand getBrandById(Long brandId) {
return this.getSqlSession().selectOne(nameSpace + "selectByPrimaryKey", brandId);
}
public void updateBrand(EbBrand brand) {
/**
* updateByPrimaryKeySelective和updata的区别：
* 一个是动态SQL，一个是静态SQL。这里就使用动态SQL比较好。因为是更新操作
*/
this.getSqlSession().update(nameSpace + "updateByPrimaryKeySelective", brand);
}
public void deleteBrand(Long brandId) {
this.getSqlSession().delete(nameSpace + "deleteByPrimaryKey", brandId);
}
public List<EbBrand> selectBrand() {
return this.getSqlSession().selectList(nameSpace+"selectBrand");
}
public List<EbBrand> selectBrandByName(String brandName) {
return this.getSqlSession().selectList(nameSpace+"selectBrandByName", brandName);
}
}mybatis插件只有最后两个方法没有帮我们自动生成，其他的SQL语句都自动生成了。
<select id="selectBrand" resultMap="BaseResultMap">
select * from eb_brand
</select>
<select id="selectBrandByName" resultMap="BaseResultMap" parameterType="string">
select * from eb_brand t where t.brand_name = #{brandName}
</select>
编写Service
Service接口
public interface EbBrandService {
void saveBrand(EbBrand brand);
EbBrand getBrandById(Long brandId);
void updateBrand(EbBrand brand);
void deleteBrand(Long brandId);
List<EbBrand> selectBrand();
List<EbBrand> selectBrandByName(String brandName);
}Service实现
package com.rl.ecps.service.impl;
import com.rl.ecps.dao.EbBrandDao;
import com.rl.ecps.dao.impl.EbBrandDaoImpl;
import com.rl.ecps.model.EbBrand;
import com.rl.ecps.service.EbBrandService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
/**
* Created by ozc on 2017/8/26.
*/
@Service
public class EbBrandServiceImpl implements EbBrandService {
@Autowired
private EbBrandDao brandDao;
public void saveBrand(EbBrand brand) {
brandDao.saveBrand(brand);
}
public EbBrand getBrandById(Long brandId) {
return brandDao.getBrandById(brandId);
}
public void updateBrand(EbBrand brand) {
brandDao.updateBrand(brand);
}
public void deleteBrand(Long brandId) {
brandDao.deleteBrand(brandId);
}
public List<EbBrand> selectBrand() {
return brandDao.selectBrand();
}
public List<EbBrand> selectBrandByName(String brandName) {
return brandDao.selectBrandByName(brandName);
}
}
测试Service
在idea中，我们新建一个test目录
对着我们的serviceImpl使用快捷键ctrl+shift+t
idea就会帮我们自动把想要测试的方法把相关的目录创建出来了
我们在插入数据的时候，记得要改写SQL语句，因为默认是没有主键的。下面就是我们把在主键列上使用自动增长
<insert id="insert" parameterType="com.rl.ecps.model.EbBrand" >
<selectKey keyProperty="brandId" order="BEFORE" resultType="long">
select seqbrandid.nextval from dual
</selectKey>
insert into EB_BRAND (BRAND_ID, BRAND_NAME, BRAND_DESC,
IMGS, WEBSITE, BRAND_SORT
)
values (#{brandId,jdbcType=DECIMAL}, #{brandName,jdbcType=VARCHAR}, #{brandDesc,jdbcType=VARCHAR},
#{imgs,jdbcType=VARCHAR}, #{website,jdbcType=VARCHAR}, #{brandSort,jdbcType=DECIMAL}
)
</insert>插入成功
