框架整合的方便之處
1)單獨使用myBatis的時候,要操作數據庫,每次都需要通過SqlSessionFactory和SqlSession方式獲取Mapper對象
2)在Spring和Mytis整合之後,無需再通過SqlSessionFactory和SqlSession方式獲取Mapper對象,所有Mapper和Dao對象都交給了Spring框架管理,獲取Bean的時候,通過ApplicationContext對象獲取即可。
3)SSM框架整合是把三大框架整合在一起使用,Web.xml導入Spring配置和SpringMvc配置,在Web容器啓動的時候,啓動Spring框架容器,從Model,Dao,Service,Controller都採用註解方式,就可以實現直接在Controller裏邊使用Service的注入對象,無需再使用ApplicationContext獲取Bean對象。
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> <!--熱部署編譯方式--> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <fork>true</fork> </configuration> </plugin> </plugins> </build> <dependencies> <!-- springMVC官方文檔 --> <!-- 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測試--> <!-- 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> <!--阿里的數據源--> <!-- https://mvnrepository.com/artifact/com.alibaba/druid --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.2.0</version> </dependency> <!--MySQL連接的依賴包--> <!-- 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對接包 單獨引入--> <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>2.0.6</version> </dependency> <!--單元測試--> <!-- https://mvnrepository.com/artifact/junit/junit --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.13</version> <scope>test</scope> </dependency> <!--日誌輸出--> <!-- https://mvnrepository.com/artifact/log4j/log4j --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!--JSON數據轉換--> <!-- 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"> <!--對接Spring的主配置文件--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </context-param> <!--配置上下文監聽器,在Web啓動時同時啓動Spring框架容器--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--SpringMvc前端控制器轉發器--> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!--用來指定要記載的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> <!--容器在啓動時立即加載SpringMvc框架及配置文件--> <load-on-startup>1</load-on-startup> </servlet> <!--控制器映射, /代表所有的請求交給SpringMVC處理--> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--配置SpringMVC的編碼格式 --> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <!--設置統一採用utf-8編碼--> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <!--設置request編碼爲encoding的屬性值--> <init-param> <param-name>forceRequestEncoding</param-name> <param-value>true</param-value> </init-param> <!--設置response編碼爲encoding的屬性值--> <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> <!--默認首頁--> <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"> <!--加載屬性配置文件--> <context:property-placeholder location="classpath:jdbc.Properties"/> <!--配置數據源--> <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}"/> <!--最小連接數--> <property name="initialSize" value="${jdbc.pool.initialSize}"/> <!--最小空閒連接數--> <property name="minIdle" value="${jdbc.pool.minIdle}"/> <!--最大併發使用數--> <property name="maxActive" value="${jdbc.pool.maxActive}"/> <!--最大等待時間--> <property name="maxWait" value="${jdbc.pool.maxWait}"/> </bean> <!--配置事務管理器,使用阿里事務管理包--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="druidDataSource"/> </bean> <!--開啓基於註解的事務管理方式--> <tx:annotation-driven transaction-manager="transactionManager"/> <!--myBatis和Spring整合,定義sessionFactory,配置所用數據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> <!--自動掃描方式裝配myBatis的映射器,無需提供實現類--> <!--配置之後,myBatis配置文件內可以省略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> <!--配置開啓依賴注入的註解解析器,掃包範圍--> <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"> <!--設置處理器掃包範圍--> <context:component-scan base-package="rui.web"/> <!--讓SpringMvc不處理靜態資源--> <mvc:default-servlet-handler /> <!--開啓自動註冊處理器映射器和處理器適配器--> <mvc:annotation-driven /> <!--配置視圖解析器,視圖解析器用來解析處理器返回的ModelAndView對象--> <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> <!-- 引入外部屬性配置文件 --> <properties resource="jdbc.Properties"> <!-- 內部額外定義的屬性,這些屬性都可以在配置文件中通過${屬性名}使用 --> <property name="jdbc.other" value="other"/> </properties> <!-- 全局配置參數,相關的參數參照myBatis文檔 --> <settings> <!-- 是否開啓緩存 --> <setting name="cacheEnabled" value="true"/> <!-- 是否開啓延遲加載 --> <setting name="lazyLoadingEnabled" value="true"/> <!--將積極加載修改成消極加載--> <setting name="aggressiveLazyLoading" value="false"/> <!--採用Log4j輸出調試信息--> <setting name="logImpl" value="LOG4J"/> </settings> <!-- 類型別名,聲明的短名稱可以在Mapper文件中替代使用 --> <typeAliases> <!-- 自動爲包內所有類創建類型別名,默認是首字母小寫的類名稱 也可以在類上方通過@Alias("別名")類設置所需要的別名 --> <package name="db.Model"/> </typeAliases> <!-- Spring配置MapperScannerConfigurer之後,可以省略如下配置 需要在接口上增加@Mapper註解, 沒驗證成功,不加會報錯。 --> <!-- 映射器配置 --> <!-- 引入表的接口類 --> <mappers> <!--一個個的單獨導入,開發階段,未開發好的,不要放入--> <mapper resource="rui/db/Dao/ex_Order.xml"/> <mapper resource="rui/db/Dao/ex_Customer.xml"/> <!--自動導入包內所有的Mapper文件--> <!--<package name="rui.db.mapper"/>--> </mappers> </configuration>