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📚基于狂神说的Spring+Mybatis+SpringMVC(SSM)的小书城整合,仅适用于新手练手,熟悉框架整合

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SSM小书城整合,新手框架整合练习

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本项目主要用于用于新手刚入门Spring,Mybatis,SpringMVC框架后,需要小练手整合一下,熟悉完框架之后,还是可以深入学习一下或者学下Springboot等内容(如果本项目对您有帮助,请 watch、star、fork 素质三连一波,鼓励一下作者,谢谢)

数据库环境

  • 创建一个存放书籍数据的数据库表
  • 文件为数据库.sql

基本环境搭建

  • 新建一Maven项目! 添加web的支持
  • 导入相关的pom依赖!
  • 文件为pom.xml
  • 文件为Maven资源过滤设置,静态资源导出问题
src/main/java **/*.properties **/*.xml false src/main/resources **/*.properties **/*.xml false
  • 建立基本结构和配置框架!

Mybatis层编写

  • 数据库配置文件 database.properties

    jdbc.driver=com.mysql.jdbc.Driver
    # &serverTimezone=Asia/Shanghai
    jdbc.url=jdbc:mysql://localhost:3306/ssmbuild?useSSL=true&useUnicode=true&characterEncoding=utf8
    jdbc.username=root
    jdbc.password=123456
    
  • 编写MyBatis的核心配置文件 mybatis-config.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>
    
       <typeAliases>
           <package name="com.kuang.pojo"/>
       </typeAliases>
       <mappers>
           <mapper resource="com/kuang/dao/BookMapper.xml"/>
       </mappers>
    
    </configuration>
    
  • 编写数据库对应的实体类 com.pojo.Books,可使用lombok插件!

  • 编写Dao层的 Mapper接口!

  • 编写接口对应的 Mapper.xml 文件。需要导入MyBatis的包;

  • 编写Service层的接口和实现类

Spring层

  • 配置Spring整合MyBatis,我们这里数据源使用c3p0连接池;

  • 我们去编写Spring整合Mybatis的相关的配置文件;spring-dao.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:context="http://www.springframework.org/schema/context"
          xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/context
           https://www.springframework.org/schema/context/spring-context.xsd">
    
       <!-- 配置整合mybatis -->
       <!-- 1.关联数据库文件 -->
       <context:property-placeholder location="classpath:database.properties"/>
    
       <!-- 2.数据库连接池 -->
       <!--数据库连接池
           dbcp 半自动化操作 不能自动连接
           c3p0 自动化操作(自动的加载配置文件 并且设置到对象里面)
       -->
       <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
           <!-- 配置连接池属性 -->
           <property name="driverClass" value="${jdbc.driver}"/>
           <property name="jdbcUrl" value="${jdbc.url}"/>
           <property name="user" value="${jdbc.username}"/>
           <property name="password" value="${jdbc.password}"/>
    
           <!-- c3p0连接池的私有属性 -->
           <property name="maxPoolSize" value="30"/>
           <property name="minPoolSize" value="10"/>
           <!-- 关闭连接后不自动commit -->
           <property name="autoCommitOnClose" value="false"/>
           <!-- 获取连接超时时间 -->
           <property name="checkoutTimeout" value="10000"/>
           <!-- 当获取连接失败重试次数 -->
           <property name="acquireRetryAttempts" value="2"/>
       </bean>
    
       <!-- 3.配置SqlSessionFactory对象 -->
       <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
           <!-- 注入数据库连接池 -->
           <property name="dataSource" ref="dataSource"/>
           <!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
           <property name="configLocation" value="classpath:mybatis-config.xml"/>
       </bean>
    
       <!-- 4.配置扫描Dao接口包,动态实现Dao接口注入到spring容器中 -->
       <!--解释 :https://www.cnblogs.com/jpfss/p/7799806.html-->
       <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
           <!-- 注入sqlSessionFactory -->
           <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
           <!-- 给出需要扫描Dao接口包 -->
           <property name="basePackage" value="com.kuang.dao"/>
       </bean>
    
    </beans>
    
  • Spring整合service层,Spring-service.xml文件编写

    <?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"
          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">
    
       <!-- 扫描service相关的bean -->
       <context:component-scan base-package="com.service" />
    
       <!--BookServiceImpl注入到IOC容器中-->
       <bean id="BookServiceImpl" class="com.service.BookServiceImpl">
           <property name="bookMapper" ref="bookMapper"/>
       </bean>
    
       <!-- 配置事务管理器 -->
       <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
           <!-- 注入数据库连接池 -->
           <property name="dataSource" ref="dataSource" />
       </bean>
    
    </beans>
    

SpringMVC层

  • web.xml编写

    <?xml version="1.0" encoding="UTF-8"?>
    <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">
    
       <!--DispatcherServlet-->
       <servlet>
           <servlet-name>DispatcherServlet</servlet-name>
           <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
           <init-param>
               <param-name>contextConfigLocation</param-name>
               <!--一定要注意:我们这里加载的是总的配置文件,之前被这里坑了!-->
               <param-value>classpath:applicationContext.xml</param-value>
           </init-param>
           <load-on-startup>1</load-on-startup>
       </servlet>
       <servlet-mapping>
           <servlet-name>DispatcherServlet</servlet-name>
           <url-pattern>/</url-pattern>
       </servlet-mapping>
    
       <!--encodingFilter-->
       <filter>
           <filter-name>encodingFilter</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>encodingFilter</filter-name>
           <url-pattern>/*</url-pattern>
       </filter-mapping>
    
       <!--Session过期时间-->
       <session-config>
           <session-timeout>15</session-timeout>
       </session-config>
    
    </web-app>
    
  • spring-mvc.xml编写

    <?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"
          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
       https://www.springframework.org/schema/mvc/spring-mvc.xsd">
    
       <!-- 配置SpringMVC -->
       <!-- 1.开启SpringMVC注解驱动 -->
       <mvc:annotation-driven />
       <!-- 2.静态资源默认servlet配置-->
       <mvc:default-servlet-handler/>
    
       <!-- 3.配置jsp 显示ViewResolver视图解析器 -->
       <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
           <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
           <property name="prefix" value="/WEB-INF/jsp/" />
           <property name="suffix" value=".jsp" />
       </bean>
    
       <!-- 4.扫描web相关的bean -->
       <context:component-scan base-package="com.kuang.controller" />
    
    </beans>
    

最后的最后,大整合

  • applicationContext.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"
          xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans.xsd">
    
       <import resource="spring-dao.xml"/>
       <import resource="spring-service.xml"/>
       <import resource="spring-mvc.xml"/>
    
    </beans>
    
    

接下来就是自由的编写Controller以及视图层了,这里就不写了

  • 本项目主要是基于狂神说的SpringMVC整合书城项目编写,额外的就是试了下PageHelper的插件,实现了分页

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