SSM框架的集成主要是Spring和MyBatis的集成,SpringMVC和Spring自然集成。html
1.2 建立確實的文件夾,結構以下
java
2.1 配置pom.xmlmysql
<properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.source>1.7</maven.compiler.source> <maven.compiler.target>1.7</maven.compiler.target> <!--自定義一個版本變量,方便更新版本--> <spring.version>5.1.5.RELEASE</spring.version> <mybatis.version>3.4.6</mybatis.version> <c3p0.version>0.9.5.4</c3p0.version> </properties> <dependencies> <!-- 默認的idea建立的依賴版本是4.11,後續集成測試時,提示Junit的版本太低,至少須要4.12 --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency> <!--Spring核心包--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</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>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <!--Spring的依賴添加結束,若有其餘需求請自行添加--> <!--MyBatis核心包--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!--MyBatis依賴包到此結束--> <!--Spring-Mybatis集成的依賴--> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.2</version> </dependency> <!--Spring集成Mybatis的依賴結束--> <!--用於鏈接數據庫的依賴,這裏來鏈接MySQL,其餘數據庫自行更換包--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.15</version> </dependency> <!--數據鏈接池選擇c3p0--> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>${c3p0.version}</version> </dependency> <!--數據庫相關到此結束--> <!--JavaWeb須要的--> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!--簡化代碼的依賴--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.8</version> <scope>provided</scope> </dependency> <!--Spring的測試包--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> <scope>test</scope> </dependency> </dependencies>
2.2 建立數據庫git
CREATE DATABASE `test`; USE `test`; DROP TABLE IF EXISTS `user`; CREATE TABLE `user` ( `id` int(10) NOT NULL AUTO_INCREMENT, `name` varchar(20) NOT NULL, `password` varchar(20) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=latin1;
3.1 在resources/spring下建立一個applicationContext.xml並配置以下web
<?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"> <!--配置自動掃描--> <!-- context:component-scan 會自動掃描當前包及其子包, 而且每個context:componment-scan都會生成一個bean, 當在後續的SpringMVC中須要配置控制器,因此不排除Controller和RestController註解, 就會掃描到兩個同類型的bean,致使Spring不知道要裝配那個bean。 --> <context:component-scan base-package="cn.edu.nit"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> <context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.RestController"/> </context:component-scan> <!--用於管理整個Spring上下文--> <import resource="classpath:spring/spring-*.xml"/> </beans>
3.2 在resources下建立一個jdbc.properties並配置以下(user和password根據本身數據庫而定)spring
jdbc.url=jdbc:mysql://localhost:3306/test?useSSL=true&serverTimezone=GMT%2B8 jdbc.driver=com.mysql.cj.jdbc.Driver jdbc.user=developer jdbc.password=123456
3.3 在resources/spring下建立一個spring-mybatis.xml並配置以下sql
<?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"> <!--配置數據源--> <!--1. 先加載數據庫的配置文件--> <context:property-placeholder location="classpath:jdbc.properties"/> <!--2.配置DataSource,採用c3p0的--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="jdbcUrl" value="${jdbc.url}"/> <property name="driverClass" value="${jdbc.driver}"/> <property name="user" value="${jdbc.user}"/> <property name="password" value="${jdbc.password}"/> </bean> <!--配置Spring事務用於管理Mybatis的DataSource--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!--配置MyBatis--> <!--1. 自動掃描mapper.xml文件和會話工廠,配置mapper是操做那個數據源--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <!--注意:這裏是Mapperlocations,不是configLocation--> <property name="mapperLocations" value="classpath:cn/edu/nit/mapper/*.xml"/> </bean> <!--2.自動掃描Mapper層的接口--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <property name="basePackage" value="cn.edu.nit.mapper"/> </bean> </beans>
3.4 測試一下Spring和MyBatis的集成環境數據庫
package cn.edu.nit.test; import cn.edu.nit.pojo.User; import cn.edu.nit.service.UserService; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit.jupiter.SpringJUnitConfig; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; @ContextConfiguration(locations = {"classpath:spring/applicationContext.xml"}) @RunWith(SpringJUnit4ClassRunner.class) public class SpringMyBatisTest { @Autowired private UserService userService; @Test public void t1(){ User user = new User(); user.setName("developer"); user.setPassword("123456"); userService.insertUser(user); } }
4.1配置SpringMVCexpress
<?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"> <!--1.掃描控制層的控制器--> <context:component-scan base-package="cn.edu.nit"> <!--include-filter是隻掃描有這個註解的--> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> <context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.RestController"/> </context:component-scan> <!--2.配置內部視圖解析器--> <!--轉發的時候會通過,重定向不會--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/jsp/"/> <property name="suffix" value=".jsp"/> </bean> </beans>
<import resource="classpath:springmvc.xml"/>
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0"> <display-name>Archetype Created Web Application</display-name> <!--配置上下文配置文件地址--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/applicationContext.xml</param-value> </context-param> <!--配置Spring上下文加載監聽器,--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--配置springmvc攔截器--> <servlet> <servlet-name>springmvc</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>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <!--如下的是一些優化的不是必要的的,視狀況而定--> <!--編碼過濾器--> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <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> <!--配置Spring內存溢出監聽器--> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
4.2.配置運行時環境(容器)
api
5.1測試結果
注:圖14中是請求轉發,因此瀏覽器的地址欄是 http://localhost:8080/user/query ,而圖15中是重定向,地址欄是http://localhost:8080/jsp/show.jsp,而且數據在第二次發起請求時丟失了。
<context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/applicationContext.xml</param-value> </context-param>