使用SSM重构Bookstore——环境准备
1、系统环境
2、数据库建表
启动mysql服务
sudo systemctl start mysqld
登录mysql
mysql -u root -p
建立数据库(如果存在先删除)
drop database if exists `Bookstore`;
create database `Bookstore`;
use Bookstore;
建表(建好后通过show create table 表名 拷贝过来的，自己写的有点乱，注意字符集选取utf8mb4而不是utf8)
- 用户表
CREATE TABLE `tbl_User` (
`id` varchar(100) NOT NULL,
`username` varchar(20) NOT NULL,
`password` varchar(50) NOT NULL,
`email` varchar(50) NOT NULL,
`telephone` varchar(20) NOT NULL,
`registTime` timestamp NOT NULL,
`realname` varchar(10) DEFAULT NULL,
`gender` char(1) DEFAULT 'M',
`birthday` date DEFAULT NULL,
`activeCode` varchar(50) DEFAULT NULL,
`state` tinyint(4) DEFAULT NULL,
`role` varchar(10) DEFAULT 'normal',
PRIMARY KEY (`id`),
UNIQUE KEY `username` (`username`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
- 产品表
CREATE TABLE `tbl_Product` (
`id` varchar(100) NOT NULL,
`name` varchar(40) NOT NULL,
`price` double NOT NULL,
`category` varchar(40) NOT NULL,
`pnum` bigint(20) NOT NULL,
`imgurl` varchar(100) DEFAULT NULL,
`description` varchar(255) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
- 订单表
CREATE TABLE `tbl_Order` (
`id` varchar(100) NOT NULL,
`money` double NOT NULL,
`receiverAddress` varchar(255) NOT NULL,
`receiverName` varchar(20) NOT NULL,
`receiverPhone` varchar(20) NOT NULL,
`paystate` tinyint NOT NULL,
`ordertime` timestamp NOT NULL,
`user_id` varchar(100) NOT NULL,
PRIMARY KEY (`id`),
KEY `user_id` (`user_id`),
CONSTRAINT `orders_ibfk_1` FOREIGN KEY (`user_id`) REFERENCES `tbl_User` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
- 订单条目表
CREATE TABLE `tbl_OrderItem` (
`order_id` varchar(100) NOT NULL,
`product_id` varchar(100) NOT NULL,
`buynum` int(11) DEFAULT NULL,
PRIMARY KEY (`order_id`,`product_id`),
KEY `product_id` (`product_id`),
CONSTRAINT `orderitem_ibfk_1` FOREIGN KEY (`order_id`) REFERENCES `tbl_Order` (`id`),
CONSTRAINT `orderitem_ibfk_2` FOREIGN KEY (`product_id`) REFERENCES `tbl_Product` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
3、 SSM环境配置
IDE
1. 使用Maven新建工程
2. 完善目录结构
3. 配置依赖 —— POM文件(直接在Idea的Project Structure中配置依赖在刷新POM时会被丢弃)
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>ssmgroupId>
<artifactId>BookstoreartifactId>
<version>1.0-SNAPSHOTversion>
<packaging>warpackaging>
<name>Bookstore Maven Webappname>
<url>http://localhost:8080/Bookstoreurl>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<maven.compiler.source>1.8maven.compiler.source>
<maven.compiler.target>1.8maven.compiler.target>
<spring-version>5.1.6.RELEASEspring-version>
properties>
<dependencies>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-expressionartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>org.aspectjgroupId>
<artifactId>aspectjweaverartifactId>
<version>1.9.3version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>4.0.1version>
<scope>providedscope>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>${spring-version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.5.1version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>2.0.1version>
dependency>
<dependency>
<groupId>org.mybatis.generatorgroupId>
<artifactId>mybatis-generator-coreartifactId>
<version>1.3.7version>
dependency>
<dependency>
<groupId>com.mchangegroupId>
<artifactId>c3p0artifactId>
<version>0.9.5.4version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>8.0.15version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>1.2.17version>
dependency>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.12version>
<scope>testscope>
dependency>
dependencies>
<build>
<finalName>BookstorefinalName>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-clean-pluginartifactId>
<version>3.1.0version>
plugin>
<plugin>
<artifactId>maven-resources-pluginartifactId>
<version>3.0.2version>
plugin>
<plugin>
<artifactId>maven-compiler-pluginartifactId>
<version>3.8.0version>
plugin>
<plugin>
<artifactId>maven-surefire-pluginartifactId>
<version>2.22.1version>
plugin>
<plugin>
<artifactId>maven-war-pluginartifactId>
<version>3.2.2version>
plugin>
<plugin>
<artifactId>maven-install-pluginartifactId>
<version>2.5.2version>
plugin>
<plugin>
<artifactId>maven-deploy-pluginartifactId>
<version>2.8.2version>
plugin>
plugins>
pluginManagement>
build>
project>
4.使用Mybatis generator生成相关文件
生成器配置文件generatorConfig.xml位于src/main/resources
<generatorConfiguration>
<properties resource="db.properties" />
<context id="bookstore" targetRuntime="MyBatis3">
<commentGenerator>
<property name="suppressAllComments" value="true" />
<property name="suppressDate" value="true" />
commentGenerator>
<jdbcConnection driverClass="${jdbc.driver}"
connectionURL="${jdbc.url}"
userId="${jdbc.username}"
password="${jdbc.password}">
jdbcConnection>
<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
javaTypeResolver>
<javaModelGenerator targetPackage="com.bookstore.Domain" targetProject="./src/main/java">
<property name="trimStrings" value="true" />
javaModelGenerator>
<sqlMapGenerator targetPackage="Mapper" targetProject="./src/main/resources">
sqlMapGenerator>
<javaClientGenerator type="XMLMAPPER" targetPackage="com.bookstore.Dao" targetProject="./src/main/java">
javaClientGenerator>
<table tableName="tbl_User" domainObjectName="User" />
<table tableName="tbl_Product" domainObjectName="Product"/>
<table tableName="tbl_Order" domainObjectName="Order"/>
<table tableName="tbl_OrderItem" domainObjectName="OrderItem"/>
context>
generatorConfiguration>
使用Maven插件运行MBG
<dependency>
<groupId>org.mybatis.generatorgroupId>
<artifactId>mybatis-generator-maven-pluginartifactId>
<version>1.3.7version>
dependency>
<plugins>
<plugin>
<groupId>org.mybatis.generatorgroupId>
<artifactId>mybatis-generator-maven-pluginartifactId>
<version>1.3.7version>
<configuration>
<configurationFile>
configurationFile>
<verbose>trueverbose>
<overwrite>trueoverwrite>
configuration>
<dependencies>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>8.0.15version>
dependency>
dependencies>
plugin>
plugins>
运行后生成结果:
5. 配置Spring及Spring MVC
Spring配置文件src/main/resources/spring.xml
<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:mybatis="http://mybatis.org/schema/mybatis-spring"
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://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd">
<context:component-scan base-package="com.bookstore">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<context:property-placeholder location="classpath:db.properties" />
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" >
<property name="dataSource" ref="dataSource" />
bean>
<tx:annotation-driven />
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath:Mapper/*.xml" />
<property name="configuration" >
<bean class="org.apache.ibatis.session.Configuration" >
<property name="mapUnderscoreToCamelCase" value="true" />
bean>
property>
bean>
<mybatis:scan base-package="com.bookstore.Dao" />
beans>
Spring MVC配置文件 src/main/resources/spring-mvc.xml
<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"
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/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="com.bookstore.Controller" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
bean>
<mvc:annotation-driven />
<mvc:default-servlet-handler />
beans>
web.xml配置文件src/main/webapp/WEB-INF/web.xml
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<filter>
<filter-name>encodingUTF8filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
filter>
<filter-mapping>
<filter-name>encodingUTF8filter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<servlet>
<servlet-name>dispatcherservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<load-on-startup>1load-on-startup>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-mvc.xmlparam-value>
init-param>
servlet>
<servlet-mapping>
<servlet-name>dispatcherservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
web-app>