springMvc - 08 SSM框架整合

框架整合的方便之处

1）单独使用myBatis的时候，要操作数据库，每次都需要通过SqlSessionFactory和SqlSession方式获取Mapper对象

2）在Spring和Mytis整合之后，无需再通过SqlSessionFactory和SqlSession方式获取Mapper对象，所有Mapper和Dao对象都交给了Spring框架管理，获取Bean的时候，通过ApplicationContext对象获取即可。

3）SSM框架整合是把三大框架整合在一起使用，Web.xml导入Spring配置和SpringMvc配置，在Web容器启动的时候，启动Spring框架容器，从Model，Dao，Service，Controller都采用注解方式，就可以实现直接在Controller里边使用Service的注入对象，无需再使用ApplicationContext获取Bean对象。

1、pom.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://maven.apache.org/POM/4.0.0"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.rui</groupId>
    <artifactId>02QuickAnnotation</artifactId>
    <version>1.0-SNAPSHOT</version>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>7</source>
                    <target>7</target>
                </configuration>
            </plugin>

            <!--热部署编译方式-->
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork>
                </configuration>
            </plugin>

        </plugins>
    </build>

    <dependencies>

        <!-- springMVC官方文档 -->
        <!-- https://www.w3cschool.cn/spring_mvc_documentation_linesh_translation -->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-aop -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-aspects -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-expression -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-instrument -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-instrument</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-orm -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot</artifactId>
            <version>2.6.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <!--jdbcTemplate-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-tx -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>5.3.0</version>
        </dependency>

        <!--spring测试-->
        <!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.3.0</version>
            <scope>test</scope>
        </dependency>

        <!--阿里的数据源-->
        <!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.2.0</version>
        </dependency>

        <!--MySQL连接的依赖包-->
        <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.11</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
        <!-- https://mybatis.org/mybatis-3/getting-started.html -->
        <!-- https://mybatis.org/mybatis-3/zh/index.html -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.6</version>
        </dependency>

        <!--mybatis Spring对接包 单独引入-->
        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.6</version>
        </dependency>

        <!--单元测试-->
        <!-- https://mvnrepository.com/artifact/junit/junit -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13</version>
            <scope>test</scope>
        </dependency>

        <!--日志输出-->
        <!-- https://mvnrepository.com/artifact/log4j/log4j -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>

        <!--JSON数据转换-->
        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.12.2</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.12.2</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.12.2</version>
        </dependency>

        <dependency>
            <groupId>org.jetbrains</groupId>
            <artifactId>annotations-java5</artifactId>
            <version>RELEASE</version>
            <scope>compile</scope>
        </dependency>

    </dependencies>

</project>

2、web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">

    <!--对接Spring的主配置文件-->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring.xml</param-value>
    </context-param>

    <!--配置上下文监听器，在Web启动时同时启动Spring框架容器-->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!--SpringMvc前端控制器转发器-->
    <servlet>
        <servlet-name>springmvc</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!--用来指定要记载的springMvc核心配置文件位置-->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc.xml</param-value>
        </init-param>
        <!--容器在启动时立即加载SpringMvc框架及配置文件-->
        <load-on-startup>1</load-on-startup>
    </servlet>

    <!--控制器映射, /代表所有的请求交给SpringMVC处理-->
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!--配置SpringMVC的编码格式 -->
    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <!--设置统一采用utf-8编码-->
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <!--设置request编码为encoding的属性值-->
        <init-param>
            <param-name>forceRequestEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
        <!--设置response编码为encoding的属性值-->
        <init-param>
            <param-name>forceResponseEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!--默认首页-->
    <welcome-file-list>
        <welcome-file>index</welcome-file>
    </welcome-file-list>

</web-app>

3、spring.xml配置

<?xml version="1.0" encoding="UTF-8"?>

<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="http://www.springframework.org/schema/beans"
       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">

    <!--加载属性配置文件-->
    <context:property-placeholder location="classpath:jdbc.Properties"/>

    <!--配置数据源-->
    <bean id="druidDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <!--最小连接数-->
        <property name="initialSize" value="${jdbc.pool.initialSize}"/>
        <!--最小空闲连接数-->
        <property name="minIdle" value="${jdbc.pool.minIdle}"/>
        <!--最大并发使用数-->
        <property name="maxActive" value="${jdbc.pool.maxActive}"/>
        <!--最大等待时间-->
        <property name="maxWait" value="${jdbc.pool.maxWait}"/>
    </bean>

    <!--配置事务管理器,使用阿里事务管理包-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="druidDataSource"/>
    </bean>

    <!--开启基于注解的事务管理方式-->
    <tx:annotation-driven transaction-manager="transactionManager"/>

    <!--myBatis和Spring整合，定义sessionFactory，配置所用数据源和主配置文件位置-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="druidDataSource"/>
        <property name="configLocation" value="classpath:mybatis.xml"/>
    </bean>

    <!--自动扫描方式装配myBatis的映射器，无需提供实现类-->
    <!--配置之后,myBatis配置文件内可以省略mappers映射配置-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="rui.db.Dao"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
    </bean>

    <!--配置开启依赖注入的注解解析器，扫包范围-->
    <context:component-scan base-package="rui"/>

</beans>

4、springmvc.xml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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.1.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">

    <!--设置处理器扫包范围-->
    <context:component-scan base-package="rui.web"/>

    <!--让SpringMvc不处理静态资源-->
    <mvc:default-servlet-handler />

    <!--开启自动注册处理器映射器和处理器适配器-->
    <mvc:annotation-driven />

    <!--配置视图解析器，视图解析器用来解析处理器返回的ModelAndView对象-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp"></property>
        <property name="suffix" value=".jsp" ></property>
    </bean>

</beans>

5、mybatis.xml配置

 

<?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>

    <!-- 引入外部属性配置文件 -->
    <properties resource="jdbc.Properties">
        <!-- 内部额外定义的属性，这些属性都可以在配置文件中通过${属性名}使用 -->
        <property name="jdbc.other" value="other"/>
    </properties>

    <!-- 全局配置参数，相关的参数参照myBatis文档 -->
    <settings>
        <!-- 是否开启缓存 -->
        <setting name="cacheEnabled" value="true"/>
        <!-- 是否开启延迟加载 -->
        <setting name="lazyLoadingEnabled" value="true"/>
        <!--将积极加载修改成消极加载-->
        <setting name="aggressiveLazyLoading" value="false"/>
        <!--采用Log4j输出调试信息-->
        <setting name="logImpl" value="LOG4J"/>
    </settings>

    <!-- 类型别名，声明的短名称可以在Mapper文件中替代使用 -->
    <typeAliases>
        <!--
            自动为包内所有类创建类型别名，默认是首字母小写的类名称
            也可以在类上方通过@Alias("别名")类设置所需要的别名
        -->
        <package name="db.Model"/>
    </typeAliases>

    <!--
    Spring配置MapperScannerConfigurer之后，可以省略如下配置
    需要在接口上增加@Mapper注解, 没验证成功，不加会报错。
    -->
    <!-- 映射器配置 -->
    <!-- 引入表的接口类 -->
    <mappers>
        <!--一个个的单独导入，开发阶段，未开发好的，不要放入-->
        <mapper resource="rui/db/Dao/ex_Order.xml"/>
        <mapper resource="rui/db/Dao/ex_Customer.xml"/>
        <!--自动导入包内所有的Mapper文件-->
        <!--<package name="rui.db.mapper"/>-->
    </mappers>


</configuration>