1、父工程pom.xml
<properties> <maven.compiler.source>17</maven.compiler.source> <maven.compiler.target>17</maven.compiler.target> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>6.0.6</spring.version> <junit.version>5.3.1</junit.version> <lombok.version>1.18.20</lombok.version> <mysql.version>8.0.25</mysql.version> <druid.version>1.2.8</druid.version> <logback.version>1.2.3</logback.version> <jakarta.version>9.1.0</jakarta.version> <jackson.version>2.15.0</jackson.version> <hibernate.validator.version>8.0.0.Final</hibernate.validator.version> <fileupload.version>1.3.1</fileupload.version> <mybatis.version>3.5.11</mybatis.version> <mybatis-spring.version>3.0.2</mybatis-spring.version> <pagehelper.version>5.1.11</pagehelper.version> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>${lombok.version}</version> </dependency> <dependency> <groupId>org.junit.jupiter</groupId> <artifactId>junit-jupiter-api</artifactId> <version>${junit.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> <scope>test</scope> </dependency> <dependency> <groupId>jakarta.annotation</groupId> <artifactId>jakarta.annotation-api</artifactId> <version>2.1.1</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>${druid.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</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-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>${logback.version}</version> </dependency> <dependency> <groupId>jakarta.platform</groupId> <artifactId>jakarta.jakartaee-web-api</artifactId> <version>${jakarta.version}</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>${jackson.version}</version> </dependency> <!-- 校验注解实现--> <dependency> <groupId>org.hibernate.validator</groupId> <artifactId>hibernate-validator</artifactId> <version>${hibernate.validator.version}</version> </dependency> <dependency> <groupId>org.hibernate.validator</groupId> <artifactId>hibernate-validator-annotation-processor</artifactId> <version>${hibernate.validator.version}</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>${fileupload.version}</version> </dependency> <!-- mybatis依赖 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>${mybatis-spring.version}</version> </dependency> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> <version>${pagehelper.version}</version> </dependency> </dependencies> </dependencyManagement>2、pom.xml
<dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> </dependency> <dependency> <groupId>jakarta.platform</groupId> <artifactId>jakarta.jakartaee-web-api</artifactId> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> </dependency> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper</artifactId> </dependency> </dependencies>3、web.xml
<?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"> <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> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>DispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app>4、springmvc.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" 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 https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd"> <context:component-scan base-package="com.atguigu.schedule" use-default-filters="false"> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <mvc:default-servlet-handler/> <mvc:annotation-driven/> </beans>5、jdbc.properties
jdbc.driver=com.mysql.cj.jdbc.Driver jdbc.url=jdbc:mysql:///schedule_db jdbc.user=root jdbc.pwd=1234566、schedule_db.sql
CREATE DATABASE schedule_db CHARACTER SET utf8 ; USE `schedule_db`; CREATE TABLE `sys_schedule` ( `sid` int NOT NULL AUTO_INCREMENT COMMENT '日程id', `uid` int DEFAULT NULL COMMENT '用户id', `title` varchar(50) DEFAULT NULL COMMENT '标题', `completed` int DEFAULT NULL, PRIMARY KEY (`sid`) ) ENGINE=InnoDB AUTO_INCREMENT=8 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci; insert into `sys_schedule`(`sid`,`uid`,`title`,`completed`) values (1,1,'学习Java',0), (2,1,'学习HTML5',1), (3,2,'学习Css',0), (4,1,'学习JavaScript',0), (5,1,'学习Spring',1), (6,1,'学习123',0), (7,2,'学习456',0); CREATE TABLE `sys_user` ( `uid` int NOT NULL AUTO_INCREMENT, `username` varchar(20) DEFAULT NULL, `userPwd` varchar(64) DEFAULT NULL, PRIMARY KEY (`uid`), UNIQUE KEY `username` (`username`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci; insert into `sys_user`(`uid`,`username`,`userPwd`) values (1,'lina','123456'), (2,'admin','123456');7、spring.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" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring" 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 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd"> <context:component-scan base-package="com.atguigu.schedule"> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> <context:property-placeholder location="classpath:jdbc.properties"/> <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"> <property name="driverClassName" value="${jdbc.driver}"/> <property name="url" value="${jdbc.url}"/> <property name="username" value="${jdbc.user}"/> <property name="password" value="${jdbc.pwd}"/> </bean> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <tx:annotation-driven transaction-manager="transactionManager"/> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="mapperLocations" value="classpath:mapper/*.xml"/> <property name="typeAliasesPackage" value="com.atguigu.schedule.pojo"/> <property name="plugins"> <array> <bean class="com.github.pagehelper.PageInterceptor"> <property name="properties"> <props> <prop key="reasonable">true</prop> <prop key="helperDialect">mysql</prop> </props> </property> </bean> </array> </property> </bean> <mybatis-spring:scan base-package="com.atguigu.schedule.mapper"/> </beans>8、logback.xml
<?xml version="1.0" encoding="UTF-8"?> <configuration debug="true"> <!-- 指定日志输出的位置，ConsoleAppender表示输出到控制台 --> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <!-- 日志输出的格式 --> <!-- 按照顺序分别是：时间、日志级别、线程名称、打印日志的类、日志主体内容、换行 --> <pattern>[%d{HH:mm:ss.SSS}] [%-5level] [%thread] [%logger] [%msg]%n</pattern> <charset>UTF-8</charset> </encoder> </appender> <!-- 设置全局日志级别。日志级别按顺序分别是：TRACE、DEBUG、INFO、WARN、ERROR --> <!-- 指定任何一个日志级别都只打印当前级别和后面级别的日志。 --> <root level="DEBUG"> <!-- 指定打印日志的appender，这里通过“STDOUT”引用了前面配置的appender --> <appender-ref ref="STDOUT" /> </root> <!-- 根据特殊需求指定局部日志级别，可以是包名或全类名。 --> <logger name="com.atguigu.schedule" level="DEBUG" /> </configuration>
SSM（Spring + SpringMVC + MyBatis）是一种流行的Java Web开发框架，它结合了Spring、SpringMVC和MyBatis三个主要组件，为开发者提供了一种高效、灵活和易于维护的Web应用程序开发解决方案。
以下是SSM框架的主要作用：
- 简化开发：SSM框架简化了Java Web应用程序的开发过程。通过使用Spring和SpringMVC，开发者可以轻松地实现依赖注入、AOP（面向切面编程）等功能，从而降低了代码的复杂度和耦合度。MyBatis则提供了方便的ORM（对象关系映射）功能，使得数据库操作更加简单和直观。
- 增强可维护性：SSM框架采用了分层设计，将应用程序分为表现层、业务逻辑层和数据访问层。这种分层设计使得代码结构清晰、模块化程度高，便于维护和扩展。
- 灵活性：SSM框架允许开发者根据具体需求进行定制和扩展。例如，开发者可以根据需要调整MyBatis的SQL语句，或者使用Spring的自定义注解来实现特定的业务逻辑。
- 提高性能：SSM框架具有较高的性能。通过使用MyBatis直接操作数据库，可以减少不必要的对象创建和销毁等操作，从而提高应用程序的性能。此外，Spring的缓存机制也可以提高应用程序的响应速度。
- 广泛的应用场景：SSM框架适用于各种类型的应用程序，包括Web、移动端、微服务等。由于其灵活性和可扩展性，SSM框架可以满足不同领域和场景的开发需求。
总之，SSM框架在Java Web开发中具有重要的作用，它提供了一种高效、可维护、灵活且性能优越的解决方案，适用于各种类型的应用程序开发。
