Spring整合SpringMVC，MyBatis
一 Spring整合SpringMVC
思路：首先让Spring和SpringMVC各自可能运行，而后再整合到一起第一步：搭建Spring环境
1.引入坐标（pom.xml）
<!--版本锁定--><properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <spring.version>5.0.2.RELEASE</spring.version> <slf4j.version>1.6.6</slf4j.version> <log4j.version>1.2.12</log4j.version> <mysql.version>5.1.6</mysql.version> <mybatis.version>3.4.5</mybatis.version> </properties><!--导入坐标--> <dependencies> <!-- spring --> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>1.6.8</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>compile</scope> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- log start --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>${log4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>${slf4j.version}</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>${slf4j.version}</version> </dependency> <!-- log end --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.0</version> </dependency> <dependency> <groupId>c3p0</groupId> <artifactId>c3p0</artifactId> <version>0.9.1.2</version> <type>jar</type> <scope>compile</scope> </dependency> </dependencies>2.编写Spring的配置文件：applicationContext.xml
将配置文件都放在rescourse目录下，便于管理
<?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:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" 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/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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!--开启注解扫描，只扫描service和dao，不扫描Controller--> <context:component-scan base-package="com.ssm"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan></beans>在增加依赖时，会报红，解决办法：
File | Settings | Languages & Frameworks | Schemas and DTDs
增加报红语句：http://www.springframework.org/schema/tx即可第二步：搭建SpringMVC的环境
配置前端控制器
<servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>配置springmvc.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" 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 http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 配置spring创立容器时要扫描的包,这里只扫描controller包 --> <context:component-scan base-package="com.ssm"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <!-- 配置视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"></property> <property name="suffix" value=".jsp"></property> </bean> <!--开启注解反对--> <mvc:annotation-driven></mvc:annotation-driven></beans>第三步：整合Spring和SpingMVC
实质是在SpringMVC在Controller的办法中调用service的办法要解决的问题：启动web我的项目时，只扫描了SpringMVC的配置文件，没有扫描Spring的配置文件applicationContext.xml，因而就不会将service,dao类加载到容器中解决办法：利用监听器，在监听到服务器启动时，加载Spring的配置文件Spring的配置文件加载原理：
1.ServletContext：web我的项目最大的域对象，在服务器启动时创立，且只会创立一个实例对象，服务器敞开时该实例被销毁。2. 一类监听器：能够监听ServletContext实例的创立和销毁。ServletContext只会实例化一次因而监听器只会执行一次3.让监听器去加载Spring的配置文件，加载后创立web版本工厂，存储在ServletContext对象中，须要应用时去ServletContext对象中拿在web.xml中配置监听器
<!--配置监听器,默认只加载WEB-INF目录下的applicationContext.xml配置文件，但当初的配置文件在src的resource目录下--> <!--解决办法：设置配置文件的门路(context-param)，不必默认的加载门路--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param>加载spring的配置文件后，就能在Controller类中注入service和dao的类
@Controller@RequestMapping("test")public class AccountController{ //依赖注入 @Autowired //主动注入 private AccountService accountService; @RequestMapping("/hello") public String Hello(){ System.out.println("AccountController的Hello办法执行了"); accountService.findAll(); return "success"; }}Spring整合SpringMVC实现
第四步 搭建Mybatis环境