1.创建SSM-Parent父项目

修改配置文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  7.     <groupId>com.qbb</groupId>
  8.     <artifactId>ssm-parent</artifactId>
  9.     <version>1.0-SNAPSHOT</version>
  10.     <packaging>pom</packaging>
  12.     <!--依赖版本-->
  13.     <properties>
  14.         <maven.compiler.source>8</maven.compiler.source>
  15.         <maven.compiler.target>8</maven.compiler.target>
  16.         <servlet.version>4.0.1</servlet.version>
  17.         <jsp.version>2.3.3</jsp.version>
  18.         <thymeleaf.version>3.0.12.RELEASE</thymeleaf.version>
  19.         <spring.version>5.3.9</spring.version>
  20.         <lombok.version>1.18.20</lombok.version>
  21.         <slf4j.version>1.7.30</slf4j.version>
  22.         <logback.version>1.2.5</logback.version>
  23.         <hibernate-validator.version>7.0.1.Final</hibernate-validator.version>
  24.         <fileupload.version>1.4</fileupload.version>
  25.         <mybatis-spring.version>2.0.6</mybatis-spring.version>
  26.         <druid.version>1.2.6</druid.version>
  27.         <mybatis.version>3.5.7</mybatis.version>
  28.         <mysql.version>5.1.48</mysql.version>
  29.         <pagehelper.version>5.2.1</pagehelper.version>
  30.         <junit.version>4.13.2</junit.version>
  31.     </properties>
  33.     <!--依赖版本锁定-->
  34.     <dependencyManagement>
  35.         <dependencies>
  37.             <!--junit-->
  38.             <dependency>
  39.                 <groupId>junit</groupId>
  40.                 <artifactId>junit</artifactId>
  41.                 <version>${junit.version}</version>
  42.                 <scope>test</scope>
  43.             </dependency>
  45.             <!--spring依赖-->
  46.             <dependency>
  47.                 <groupId>org.springframework</groupId>
  48.                 <artifactId>spring-context</artifactId>
  49.                 <version>${spring.version}</version>
  50.             </dependency>
  52.             <!--spring-core-->
  53.             <dependency>
  54.                 <groupId>org.springframework</groupId>
  55.                 <artifactId>spring-core</artifactId>
  56.                 <version>${spring.version}</version>
  57.             </dependency>
  59.             <!--expression-->
  60.             <dependency>
  61.                 <groupId>org.springframework</groupId>
  62.                 <artifactId>spring-expression</artifactId>
  63.                 <version>${spring.version}</version>
  64.             </dependency>
  66.             <!--spring-beans-->
  67.             <dependency>
  68.                 <groupId>org.springframework</groupId>
  69.                 <artifactId>spring-beans</artifactId>
  70.                 <version>${spring.version}</version>
  71.             </dependency>
  73.             <!--spring-jcl-->
  74.             <dependency>
  75.                 <groupId>org.springframework</groupId>
  76.                 <artifactId>spring-jcl</artifactId>
  77.                 <version>${spring.version}</version>
  78.             </dependency>
  80.             <!--spring-aop-->
  81.             <dependency>
  82.                 <groupId>org.springframework</groupId>
  83.                 <artifactId>spring-aop</artifactId>
  84.                 <version>${spring.version}</version>
  85.             </dependency>
  87.             <!--spring-aspects-->
  88.             <dependency>
  89.                 <groupId>org.springframework</groupId>
  90.                 <artifactId>spring-aspects</artifactId>
  91.                 <version>${spring.version}</version>
  92.             </dependency>
  94.             <!--spring-tx-->
  95.             <dependency>
  96.                 <groupId>org.springframework</groupId>
  97.                 <artifactId>spring-tx</artifactId>
  98.                 <version>${spring.version}</version>
  99.             </dependency>
  101.             <!--spring-jdbc-->
  102.             <dependency>
  103.                 <groupId>org.springframework</groupId>
  104.                 <artifactId>spring-jdbc</artifactId>
  105.                 <version>${spring.version}</version>
  106.             </dependency>
  108.             <!--spring-test-->
  109.             <dependency>
  110.                 <groupId>org.springframework</groupId>
  111.                 <artifactId>spring-test</artifactId>
  112.                 <version>${spring.version}</version>
  113.             </dependency>
  115.             <!--spring-webmvc-->
  116.             <dependency>
  117.                 <groupId>org.springframework</groupId>
  118.                 <artifactId>spring-webmvc</artifactId>
  119.                 <version>${spring.version}</version>
  120.             </dependency>
  122.             <!--spring-web-->
  123.             <dependency>
  124.                 <groupId>org.springframework</groupId>
  125.                 <artifactId>spring-web</artifactId>
  126.                 <version>${spring.version}</version>
  127.             </dependency>
  129.             <!--commons-fileupload 文件上传-->
  130.             <dependency>
  131.                 <groupId>commons-fileupload</groupId>
  132.                 <artifactId>commons-fileupload</artifactId>
  133.                 <version>${fileupload.version}</version>
  134.             </dependency>
  136.             <!--数据校验-->
  137.             <dependency>
  138.                 <groupId>org.hibernate.validator</groupId>
  139.                 <artifactId>hibernate-validator</artifactId>
  140.                 <version>${hibernate-validator.version}</version>
  141.             </dependency>
  143.             <!--javax.servlet-api-->
  144.             <dependency>
  145.                 <groupId>javax.servlet</groupId>
  146.                 <artifactId>javax.servlet-api</artifactId>
  147.                 <version>${servlet.version}</version>
  148.             </dependency>
  149.             <dependency>
  150.                 <groupId>javax.servlet.jsp</groupId>
  151.                 <artifactId>javax.servlet.jsp-api</artifactId>
  152.                 <version>${jsp.version}</version>
  153.             </dependency>
  154.             <dependency>
  155.                 <groupId>org.thymeleaf</groupId>
  156.                 <artifactId>thymeleaf-spring5</artifactId>
  157.                 <version>${thymeleaf.version}</version>
  158.             </dependency>
  160.             <!--数据库依赖-->
  161.             <dependency>
  162.                 <groupId>org.mybatis</groupId>
  163.                 <artifactId>mybatis-spring</artifactId>
  164.                 <version>${mybatis-spring.version}</version>
  165.             </dependency>
  167.             <!--mybatis-->
  168.             <dependency>
  169.                 <groupId>org.mybatis</groupId>
  170.                 <artifactId>mybatis</artifactId>
  171.                 <version>${mybatis.version}</version>
  172.             </dependency>
  174.             <!--数据源-->
  175.             <dependency>
  176.                 <groupId>com.alibaba</groupId>
  177.                 <artifactId>druid</artifactId>
  178.                 <version>${druid.version}</version>
  179.             </dependency>
  181.             <!--数据库驱动-->
  182.             <dependency>
  183.                 <groupId>mysql</groupId>
  184.                 <artifactId>mysql-connector-java</artifactId>
  185.                 <version>${mysql.version}</version>
  186.             </dependency>
  188.             <!--分页插件-->
  189.             <dependency>
  190.                 <groupId>com.github.pagehelper</groupId>
  191.                 <artifactId>pagehelper</artifactId>
  192.                 <version>${pagehelper.version}</version>
  193.             </dependency>
  195.             <!--pojo依赖-->
  196.             <dependency>
  197.                 <groupId>org.projectlombok</groupId>
  198.                 <artifactId>lombok</artifactId>
  199.                 <version>${lombok.version}</version>
  200.             </dependency>
  202.             <!--日志依赖-->
  203.             <dependency>
  204.                 <groupId>org.slf4j</groupId>
  205.                 <artifactId>slf4j-api</artifactId>
  206.                 <version>${slf4j.version}</version>
  207.             </dependency>
  208.             <dependency>
  209.                 <groupId>ch.qos.logback</groupId>
  210.                 <artifactId>logback-classic</artifactId>
  211.                 <version>${logback.version}</version>
  212.             </dependency>
  213.         </dependencies>
  214.     </dependencyManagement>
  215. </project>

2.创建SSM-entity模块

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>ssm-parent</artifactId>
  7.         <groupId>com.qbb</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  12.     <groupId>com.qbb</groupId>
  13.     <artifactId>ssm-entity</artifactId>
  15.     <dependencies>
  16.         <!--entity依赖-->
  17.         <dependency>
  18.             <groupId>org.projectlombok</groupId>
  19.             <artifactId>lombok</artifactId>
  20.         </dependency>
  21.     </dependencies>
  23. </project>

创建数据库

  1. SET NAMES utf8mb4;
  2. SET FOREIGN_KEY_CHECKS = 0;
  4. -- ----------------------------
  5. -- Table structure for user
  6. -- ----------------------------
  7. DROP TABLE IF EXISTS `user`;
  8. CREATE TABLE `user`  (
  9.   `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '主键ID',
  10.   `username` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '用户名',
  11.   `password` varchar(30) CHARACTER SET utf8 COLLATE utf8_general_ci NULL DEFAULT NULL COMMENT '密码',
  12.   PRIMARY KEY (`id`) USING BTREE
  13. ) ENGINE = InnoDB AUTO_INCREMENT = 2 CHARACTER SET = utf8 COLLATE = utf8_general_ci COMMENT = '用户表' ROW_FORMAT = Compact;
  15. -- ----------------------------
  16. -- Records of user
  17. -- ----------------------------
  18. INSERT INTO `user` VALUES (1, 'zs', '123');
  20. SET FOREIGN_KEY_CHECKS = 1;

创建实体类User

  1. package com.qbb.ssm.entity;
  3. import lombok.AllArgsConstructor;
  4. import lombok.Data;
  5. import lombok.NoArgsConstructor;
  7. /**
  8.  * @author QiuQiu&LL (博客:https://www.cnblogs.com/qbbit)
  9.  * @version 1.0
  10.  * @date 2022-03-04  17:09
  11.  * @Description:
  12.  */
  13. @Data
  14. @AllArgsConstructor
  15. @NoArgsConstructor
  16. public class User {
  17.     private Integer id;
  18.     private String username;
  19.     private String password;
  20. }

3.创建ssm-mapper模块

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>ssm-parent</artifactId>
  7.         <groupId>com.qbb</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  12.     <groupId>com.qbb</groupId>
  13.     <artifactId>ssm-mapper</artifactId>
  15.     <dependencies>
  17.         <!--ssm-entity-->
  18.         <dependency>
  19.             <groupId>com.qbb</groupId>
  20.             <artifactId>ssm-entity</artifactId>
  21.             <version>1.0-SNAPSHOT</version>
  22.         </dependency>
  24.         <dependency>
  25.             <groupId>junit</groupId>
  26.             <artifactId>junit</artifactId>
  27.             <scope>test</scope>
  28.         </dependency>
  30.         <!--spring依赖-->
  31.         <dependency>
  32.             <groupId>org.springframework</groupId>
  33.             <artifactId>spring-context</artifactId>
  34.         </dependency>
  36.         <dependency>
  37.             <groupId>org.springframework</groupId>
  38.             <artifactId>spring-core</artifactId>
  39.         </dependency>
  41.         <dependency>
  42.             <groupId>org.springframework</groupId>
  43.             <artifactId>spring-expression</artifactId>
  44.         </dependency>
  46.         <dependency>
  47.             <groupId>org.springframework</groupId>
  48.             <artifactId>spring-beans</artifactId>
  49.         </dependency>
  51.         <dependency>
  52.             <groupId>org.springframework</groupId>
  53.             <artifactId>spring-jcl</artifactId>
  54.         </dependency>
  56.         <dependency>
  57.             <groupId>org.springframework</groupId>
  58.             <artifactId>spring-aop</artifactId>
  59.         </dependency>
  61.         <dependency>
  62.             <groupId>org.springframework</groupId>
  63.             <artifactId>spring-aspects</artifactId>
  64.         </dependency>
  66.         <dependency>
  67.             <groupId>org.springframework</groupId>
  68.             <artifactId>spring-tx</artifactId>
  69.         </dependency>
  71.         <dependency>
  72.             <groupId>org.springframework</groupId>
  73.             <artifactId>spring-jdbc</artifactId>
  74.         </dependency>
  76.         <dependency>
  77.             <groupId>org.springframework</groupId>
  78.             <artifactId>spring-test</artifactId>
  79.         </dependency>
  81.         <!--数据库依赖-->
  82.         <dependency>
  83.             <groupId>org.mybatis</groupId>
  84.             <artifactId>mybatis-spring</artifactId>
  85.         </dependency>
  87.         <dependency>
  88.             <groupId>org.mybatis</groupId>
  89.             <artifactId>mybatis</artifactId>
  90.         </dependency>
  92.         <dependency>
  93.             <groupId>com.alibaba</groupId>
  94.             <artifactId>druid</artifactId>
  95.         </dependency>
  97.         <dependency>
  98.             <groupId>mysql</groupId>
  99.             <artifactId>mysql-connector-java</artifactId>
  100.         </dependency>
  102.         <dependency>
  103.             <groupId>com.github.pagehelper</groupId>
  104.             <artifactId>pagehelper</artifactId>
  105.         </dependency>
  107.         <!--日志依赖-->
  108.         <dependency>
  109.             <groupId>org.slf4j</groupId>
  110.             <artifactId>slf4j-api</artifactId>
  111.         </dependency>
  112.         <dependency>
  113.             <groupId>ch.qos.logback</groupId>
  114.             <artifactId>logback-classic</artifactId>
  115.         </dependency>
  117.     </dependencies>
  119. </project>

创建mapper接口

  1. package com.qbb.ssm.mapper;
  3. import com.qbb.ssm.entity.User;
  5. import java.util.List;
  7. /**
  8.  * @author QiuQiu&LL (博客:https://www.cnblogs.com/qbbit)
  9.  * @version 1.0
  10.  * @date 2022-03-04  17:54
  11.  * @Description:
  12.  */
  13. public interface UserMapper {
  14.     List<User> findAll();
  15. }

创建Mybatis核心配置文件SqlMapConfig

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE configuration
  3.         PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  4.         "http://mybatis.org/dtd/mybatis-3-config.dtd">
  5. <configuration>
  6.     <!--控制mybatis全局行为-->
  7.     <settings>
  8.         <!--设置mybatis输出日志-->
  9.         <setting name="logImpl" value="STDOUT_LOGGING"/>
  10.         <!--驼峰命名规则-->
  11.         <setting name="mapUnderscoreToCamelCase" value="true"/>
  12.     </settings>
  14.     <!--设置别名-->
  15.     <typeAliases>
  16.         <package name="com.qbb.ssm.entity"/>
  17.     </typeAliases>
  19.     <!--引入分页插件-->
  20.     <plugins>
  21.         <plugin interceptor="com.github.pagehelper.PageInterceptor">
  22.             <!-- config params as the following -->
  23.             <!--分页参数合理化-->
  24.             <property name="reasonable " value="true"></property>
  25.         </plugin>
  26.     </plugins>
  28.     <!--指定sql映射文件的位置-->
  29. <!--    <mappers>-->
  30. <!--        <package name="mapper"/>-->
  31. <!--    </mappers>-->
  33. </configuration>

创建Mapper映射文件

  1. <?xml version="1.0" encoding="UTF-8" ?>
  2. <!DOCTYPE mapper
  3.         PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  4.         "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
  5. <mapper namespace="com.qbb.ssm.mapper.UserMapper">
  6.     <select id="findAll" resultType="com.qbb.ssm.entity.User">
  7.         select * from user
  8.     </select>
  9. </mapper>

创建jdbc.properties

  1. jdbc.driver=com.mysql.jdbc.Driver
  2. jdbc.url=jdbc:mysql://localhost:3306/qbbit3?useUnicode=true&characterEncoding=UTF-8
  3. jdbc.username=root
  4. jdbc.password=root

4.创建ssm-service模块

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <parent>
  6.         <artifactId>ssm-parent</artifactId>
  7.         <groupId>com.qbb</groupId>
  8.         <version>1.0-SNAPSHOT</version>
  9.     </parent>
  10.     <modelVersion>4.0.0</modelVersion>
  12.     <groupId>com.qbb</groupId>
  13.     <artifactId>ssm-service</artifactId>
  15.     <dependencies>
  16.         <dependency>
  17.             <groupId>com.qbb</groupId>
  18.             <artifactId>ssm-mapper</artifactId>
  19.             <version>1.0-SNAPSHOT</version>
  20.         </dependency>
  21.         <dependency>
  22.             <groupId>junit</groupId>
  23.             <artifactId>junit</artifactId>
  24.         </dependency>
  25.     </dependencies>
  27. </project>

创建Service接口及实现类

  1. package com.qbb.ssm.service;
  3. import com.qbb.ssm.entity.User;
  5. import java.util.List;
  7. /**
  8.  * @author QiuQiu&LL (博客:https://www.cnblogs.com/qbbit)
  9.  * @version 1.0
  10.  * @date 2022-03-04  18:46
  11.  * @Description:
  12.  */
  13. public interface UserService {
  14.     List<User> findAll() throws Exception;
  15. }
  1. package com.qbb.ssm.service.impl;
  3. import com.qbb.ssm.entity.User;
  4. import com.qbb.ssm.mapper.UserMapper;
  5. import com.qbb.ssm.service.UserService;
  6. import org.springframework.beans.factory.annotation.Autowired;
  7. import org.springframework.stereotype.Service;
  9. import java.util.List;
  11. /**
  12.  * @author QiuQiu&LL (博客:https://www.cnblogs.com/qbbit)
  13.  * @version 1.0
  14.  * @date 2022-03-04  18:48
  15.  * @Description:
  16.  */
  17. @Service
  18. public class UserServiceImpl implements UserService {
  20.     @Autowired
  21.     private UserMapper userMapper;
  23.     @Override
  24.     public List<User> findAll() {
  25.         return userMapper.findAll();
  26.     }
  27. }

创建Spring核心配置文件applicationContext.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.        xmlns:context="http://www.springframework.org/schema/context"
  5.        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
  6.        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/aop https://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
  7.     <!--1.开启注解扫描-->
  8.     <context:component-scan base-package="com.qbb.ssm.**">
  9.         <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
  10.     </context:component-scan>
  12.     <!--2.加载配置文件-->
  13.     <context:property-placeholder location="classpath:jdbc.properties"/>
  15.     <!--3.配置数据源信息-->
  16.     <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
  17.         <property name="driverClassName" value="${jdbc.driver}"/>
  18.         <property name="url" value="${jdbc.url}"/>
  19.         <property name="username" value="${jdbc.username}"/>
  20.         <property name="password" value="${jdbc.password}"/>
  21.     </bean>
  23.     <!--4.配置SQLSessionFactory工厂-->
  24.     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
  25.         <!--指定mybatis配置文件的位置-->
  26.         <property name="configLocation" value="classpath:SqlMapConfig.xml"/>
  27.         <!--指定数据源-->
  28.         <property name="dataSource" ref="dataSource"/>
  29.         <!--指定mapper配置文件的位置-->
  30.         <property name="mapperLocations" value="classpath*:mapper/**.xml"></property>
  31.         <!--配置插件-->
  32.         <property name="plugins">
  33.             <array>
  34.                 <!--配置分页插件-->
  35.                 <bean class="com.github.pagehelper.PageInterceptor">
  36.                     <property name="properties">
  37.                         <props>
  38.                             <!--配置数据库方言，告诉PageHelper-->
  39.                             <!--<prop key="dialect">mysql</prop>-->
  40.                             <!--配置页码合理化修正-->
  41.                             <prop key="reasonable">true</prop>
  42.                         </props>
  43.                     </property>
  44.                 </bean>
  45.             </array>
  46.         </property>
  47.     </bean>
  49.     <!--5.配置AccountDao接口所在的包-->
  50.     <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  51.         <!--扫描所有的dao接口-->
  52.         <property name="basePackage" value="com.qbb.ssm.mapper"/>
  53.     </bean>
  55.     <!--配置一个可以执行批量的sqlSession-->
  56.     <bean id="sessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
  57.         <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"/>
  58.         <constructor-arg name="executorType" value="SIMPLE"/>
  59.     </bean>
  61.     <!--6.配置spring声明式事务管理-->
  62.     <!--事务管理器-->
  63.     <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  64.         <property name="dataSource" ref="dataSource"/>
  65.     </bean>
  67.     <!--7.配置AOP增强-->
  68.     <aop:config>
  69.         <!--切入点表达式-->
  70.         <aop:pointcut id="txPointcut" expression="execution(* *..*ServiceImpl..*(..))"/>
  71.         <!--引用事务通知-->
  72.         <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut"/>
  73.     </aop:config>
  75.     <!--8.配置事务通知-->
  76.     <tx:advice id="txAdvice" transaction-manager="transactionManager">
  77.         <tx:attributes>
  78.             <!--查询方法：配置只读属性-->
  79.             <tx:method name="find*" read-only="true"/>
  80.             <tx:method name="get*" read-only="true"/>
  81.             <tx:method name="query*" read-only="true"/>
  82.             <tx:method name="count*" read-only="true"/>
  83.             <!-- 增删改方法另外配置 --> <!-- propagation 属性配置事务方法的传播行为 -->
  84.             <!-- 默认值：REQUIRED 表示：当前方法必须运行在事务中，如果没有事务，则开 启事务，在自己的事务中运行。如果已经有了已开启的事务，
  85.                 则在当前事务中运行。有可能 和其他方法共用同一个事务。 -->
  86.             <!-- 建议值：REQUIRES_NEW 表示：当前方法必须运行在事务中，如果没有事务， 则开启事务，在自己的事务中运行。
  87.                 和 REQUIRED 的区别是就算现在已经有了已开启的事务， 也一定要开启自己的事务，避免和其他方法共用同一个事务。 -->
  88.             <!-- rollback-for 属性配置回滚的异常 -->
  89.             <!-- 默认值：运行时异常 -->
  90.             <!-- 建议值：编译时异常+运行时异常 -->
  91.             <tx:method name="save*" propagation="REQUIRES_NEW" rollback-for="java.lang.Exception"/>
  92.             <tx:method name="remove*" propagation="REQUIRES_NEW" rollback-for="java.lang.Exception"/>
  93.             <tx:method name="update*" propagation="REQUIRES_NEW" rollback-for="java.lang.Exception"/>
  94.         </tx:attributes>
  95.     </tx:advice>
  97. </beans>

编写一个测试类试一下

  1. package com.qbb.ssm.service;
  3. import com.qbb.ssm.entity.User;
  4. import org.junit.Test;
  5. import org.junit.runner.RunWith;
  6. import org.springframework.beans.factory.annotation.Autowired;
  7. import org.springframework.test.context.ContextConfiguration;
  8. import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
  10. import java.util.List;
  12. /**
  13.  * @author QiuQiu&LL (博客:https://www.cnblogs.com/qbbit)
  14.  * @version 1.0
  15.  * @date 2022-03-04  19:20
  16.  * @Description:
  17.  */
  18. @RunWith(SpringJUnit4ClassRunner.class)
  19. @ContextConfiguration(locations = "classpath*:applicationContext.xml")
  20. public class UserServiceTest {
  22.     @Autowired
  23.     private UserService userService;
  25.     @Test
  26.     public void findAll() throws Exception {
  27.         List<User> all = userService.findAll();
  28.         System.out.println(all);
  29.     }
  30. }

5.创建ssm-web模块

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.     <modelVersion>4.0.0</modelVersion>
  7.     <groupId>com.qbb</groupId>
  8.     <artifactId>ssm-parent</artifactId>
  9.     <version>1.0-SNAPSHOT</version>
  10.     <modules>
  11.         <module>ssm-entity</module>
  12.         <module>ssm-mapper</module>
  13.         <module>ssm-service</module>
  14.         <module>ssm-web</module>
  15.     </modules>
  16.     <packaging>pom</packaging>
  18.     <!--依赖版本-->
  19.     <properties>
  20.         <maven.compiler.source>8</maven.compiler.source>
  21.         <maven.compiler.target>8</maven.compiler.target>
  22.         <servlet.version>4.0.1</servlet.version>
  23.         <jsp.version>2.3.3</jsp.version>
  24.         <thymeleaf.version>3.0.12.RELEASE</thymeleaf.version>
  25.         <spring.version>5.3.9</spring.version>
  26.         <lombok.version>1.18.20</lombok.version>
  27.         <slf4j.version>1.7.30</slf4j.version>
  28.         <logback.version>1.2.5</logback.version>
  29.         <hibernate-validator.version>7.0.1.Final</hibernate-validator.version>
  30.         <fileupload.version>1.4</fileupload.version>
  31.         <mybatis-spring.version>2.0.6</mybatis-spring.version>
  32.         <druid.version>1.2.6</druid.version>
  33.         <mybatis.version>3.5.7</mybatis.version>
  34.         <mysql.version>5.1.48</mysql.version>
  35.         <pagehelper.version>5.2.1</pagehelper.version>
  36.         <junit.version>4.13.2</junit.version>
  37.     </properties>
  39.     <!--依赖版本锁定-->
  40.     <dependencyManagement>
  41.         <dependencies>
  43.             <!--junit-->
  44.             <dependency>
  45.                 <groupId>junit</groupId>
  46.                 <artifactId>junit</artifactId>
  47.                 <version>${junit.version}</version>
  48.                 <scope>test</scope>
  49.             </dependency>
  51.             <!--spring依赖-->
  52.             <dependency>
  53.                 <groupId>org.springframework</groupId>
  54.                 <artifactId>spring-context</artifactId>
  55.                 <version>${spring.version}</version>
  56.             </dependency>
  58.             <!--spring-core-->
  59.             <dependency>
  60.                 <groupId>org.springframework</groupId>
  61.                 <artifactId>spring-core</artifactId>
  62.                 <version>${spring.version}</version>
  63.             </dependency>
  65.             <!--expression-->
  66.             <dependency>
  67.                 <groupId>org.springframework</groupId>
  68.                 <artifactId>spring-expression</artifactId>
  69.                 <version>${spring.version}</version>
  70.             </dependency>
  72.             <!--spring-beans-->
  73.             <dependency>
  74.                 <groupId>org.springframework</groupId>
  75.                 <artifactId>spring-beans</artifactId>
  76.                 <version>${spring.version}</version>
  77.             </dependency>
  79.             <!--spring-jcl-->
  80.             <dependency>
  81.                 <groupId>org.springframework</groupId>
  82.                 <artifactId>spring-jcl</artifactId>
  83.                 <version>${spring.version}</version>
  84.             </dependency>
  86.             <!--spring-aop-->
  87.             <dependency>
  88.                 <groupId>org.springframework</groupId>
  89.                 <artifactId>spring-aop</artifactId>
  90.                 <version>${spring.version}</version>
  91.             </dependency>
  93.             <!--spring-aspects-->
  94.             <dependency>
  95.                 <groupId>org.springframework</groupId>
  96.                 <artifactId>spring-aspects</artifactId>
  97.                 <version>${spring.version}</version>
  98.             </dependency>
  100.             <!--spring-tx-->
  101.             <dependency>
  102.                 <groupId>org.springframework</groupId>
  103.                 <artifactId>spring-tx</artifactId>
  104.                 <version>${spring.version}</version>
  105.             </dependency>
  107.             <!--spring-jdbc-->
  108.             <dependency>
  109.                 <groupId>org.springframework</groupId>
  110.                 <artifactId>spring-jdbc</artifactId>
  111.                 <version>${spring.version}</version>
  112.             </dependency>
  114.             <!--spring-test-->
  115.             <dependency>
  116.                 <groupId>org.springframework</groupId>
  117.                 <artifactId>spring-test</artifactId>
  118.                 <version>${spring.version}</version>
  119.             </dependency>
  121.             <!--spring-webmvc-->
  122.             <dependency>
  123.                 <groupId>org.springframework</groupId>
  124.                 <artifactId>spring-webmvc</artifactId>
  125.                 <version>${spring.version}</version>
  126.             </dependency>
  128.             <!--spring-web-->
  129.             <dependency>
  130.                 <groupId>org.springframework</groupId>
  131.                 <artifactId>spring-web</artifactId>
  132.                 <version>${spring.version}</version>
  133.             </dependency>
  135.             <!--commons-fileupload 文件上传-->
  136.             <dependency>
  137.                 <groupId>commons-fileupload</groupId>
  138.                 <artifactId>commons-fileupload</artifactId>
  139.                 <version>${fileupload.version}</version>
  140.             </dependency>
  142.             <!--数据校验-->
  143.             <dependency>
  144.                 <groupId>org.hibernate.validator</groupId>
  145.                 <artifactId>hibernate-validator</artifactId>
  146.                 <version>${hibernate-validator.version}</version>
  147.             </dependency>
  149.             <!--javax.servlet-api-->
  150.             <dependency>
  151.                 <groupId>javax.servlet</groupId>
  152.                 <artifactId>javax.servlet-api</artifactId>
  153.                 <version>${servlet.version}</version>
  154.             </dependency>
  155.             <dependency>
  156.                 <groupId>javax.servlet.jsp</groupId>
  157.                 <artifactId>javax.servlet.jsp-api</artifactId>
  158.                 <version>${jsp.version}</version>
  159.             </dependency>
  160.             <dependency>
  161.                 <groupId>org.thymeleaf</groupId>
  162.                 <artifactId>thymeleaf-spring5</artifactId>
  163.                 <version>${thymeleaf.version}</version>
  164.             </dependency>
  166.             <!--数据库依赖-->
  167.             <dependency>
  168.                 <groupId>org.mybatis</groupId>
  169.                 <artifactId>mybatis-spring</artifactId>
  170.                 <version>${mybatis-spring.version}</version>
  171.             </dependency>
  173.             <!--mybatis-->
  174.             <dependency>
  175.                 <groupId>org.mybatis</groupId>
  176.                 <artifactId>mybatis</artifactId>
  177.                 <version>${mybatis.version}</version>
  178.             </dependency>
  180.             <!--数据源-->
  181.             <dependency>
  182.                 <groupId>com.alibaba</groupId>
  183.                 <artifactId>druid</artifactId>
  184.                 <version>${druid.version}</version>
  185.             </dependency>
  187.             <!--数据库驱动-->
  188.             <dependency>
  189.                 <groupId>mysql</groupId>
  190.                 <artifactId>mysql-connector-java</artifactId>
  191.                 <version>${mysql.version}</version>
  192.             </dependency>
  194.             <!--分页插件-->
  195.             <dependency>
  196.                 <groupId>com.github.pagehelper</groupId>
  197.                 <artifactId>pagehelper</artifactId>
  198.                 <version>${pagehelper.version}</version>
  199.             </dependency>
  201.             <!--pojo依赖-->
  202.             <dependency>
  203.                 <groupId>org.projectlombok</groupId>
  204.                 <artifactId>lombok</artifactId>
  205.                 <version>${lombok.version}</version>
  206.             </dependency>
  208.             <!--日志依赖-->
  209.             <dependency>
  210.                 <groupId>org.slf4j</groupId>
  211.                 <artifactId>slf4j-api</artifactId>
  212.                 <version>${slf4j.version}</version>
  213.             </dependency>
  214.             <dependency>
  215.                 <groupId>ch.qos.logback</groupId>
  216.                 <artifactId>logback-classic</artifactId>
  217.                 <version>${logback.version}</version>
  218.             </dependency>
  219.         </dependencies>
  221.     </dependencyManagement>
  223. </project>

创建UserController接口

  1. package com.qbb.ssm.controller;
  3. import com.qbb.ssm.entity.User;
  4. import com.qbb.ssm.exception.MySSMException;
  5. import com.qbb.ssm.service.UserService;
  6. import com.qbb.ssm.util.ResultEntity;
  7. import org.springframework.beans.factory.annotation.Autowired;
  8. import org.springframework.stereotype.Controller;
  9. import org.springframework.web.bind.annotation.GetMapping;
  10. import org.springframework.web.bind.annotation.RequestMapping;
  11. import org.springframework.web.bind.annotation.ResponseBody;
  13. import java.util.List;
  15. /**
  16.  * @author QiuQiu&LL (博客:https://www.cnblogs.com/qbbit)
  17.  * @version 1.0
  18.  * @date 2022-03-04  19:33
  19.  * @Description:
  20.  */
  21. @Controller
  22. @RequestMapping("/user")
  23. public class UserController {
  25.     @Autowired
  26.     private UserService userService;
  28.     @GetMapping("/test")
  29.     @ResponseBody
  30.     public String test(){
  31.         return "测试";
  32.     }
  34.     @GetMapping("/findAll")
  35.     @ResponseBody
  36.     public ResultEntity findAll() throws MySSMException {
  37.         try {
  38.             List<User> userList = userService.findAll();
  39.             return ResultEntity.successWithData(userList);
  40.         } catch (Exception e) {
  41.             e.printStackTrace();
  42.             throw new MySSMException();
  43.         }
  44.     }
  45. }

创建统一异常处理机制

  1. package com.qbb.ssm.exception;
  3. import org.springframework.web.bind.annotation.ControllerAdvice;
  5. import java.security.PrivilegedActionException;
  7. /**
  8.  * @author QiuQiu&LL (博客:https://www.cnblogs.com/qbbit)
  9.  * @version 1.0
  10.  * @date 2022-03-04  19:36
  11.  * @Description:自定义异常
  12.  */
  13. public class MySSMException extends Exception{
  15.     public MySSMException() {
  16.     }
  18.     public MySSMException(String message) {
  19.         super(message);
  20.     }
  22.     public MySSMException(String message, Throwable cause) {
  23.         super(message, cause);
  24.     }
  26.     public MySSMException(Throwable cause) {
  27.         super(cause);
  28.     }
  30.     public MySSMException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
  31.         super(message, cause, enableSuppression, writableStackTrace);
  32.     }
  33. }
  1. package com.qbb.ssm.util;
  3. import com.qbb.ssm.exception.MySSMException;
  4. import org.springframework.web.bind.annotation.ControllerAdvice;
  5. import org.springframework.web.bind.annotation.ExceptionHandler;
  6. import org.springframework.web.servlet.ModelAndView;
  8. /**
  9.  * @author QiuQiu&LL (博客:https://www.cnblogs.com/qbbit)
  10.  * @version 1.0
  11.  * @date 2022-03-04  19:41
  12.  * @Description:
  13.  */
  14. @ControllerAdvice
  15. public class MyExceptionResolver {
  17.     @ExceptionHandler(MySSMException.class)
  18.     public ModelAndView mySSMException() {
  19.         ModelAndView modelAndView = new ModelAndView();
  20.         modelAndView.addObject("errorMsg", "抱歉,网络出现故障了,请联系管理员[电话:18888888888]或稍后再试!");
  21.         modelAndView.setViewName("error");
  22.         return modelAndView;
  23.     }
  24. }

创建SpringMVC核心配置文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.        xmlns:context="http://www.springframework.org/schema/context"
  5.        xmlns:mvc="http://www.springframework.org/schema/mvc"
  6.        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">
  8.     <!--1.扫描配置文件-->
  9.     <context:component-scan base-package="com.qbb.ssm" use-default-filters="false">
  10.         <!--禁用默认规则,只扫描控制器-->
  11.         <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
  12.     </context:component-scan>
  14.     <!--2.配置视图解析器-->
  15.     <bean id="viewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
  16.         <property name="order" value="1"/>
  17.         <property name="characterEncoding" value="UTF-8"/>
  18.         <property name="templateEngine">
  19.             <bean class="org.thymeleaf.spring5.SpringTemplateEngine">
  20.                 <property name="templateResolver">
  21.                     <bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
  22.                         <!--视图前缀-->
  23.                         <property name="prefix" value="/WEB-INF/pages/"/>
  24.                         <!--视图后缀-->
  25.                         <property name="suffix" value=".html"/>
  26.                         <property name="templateMode" value="HTML5"/>
  27.                         <property name="characterEncoding" value="UTF-8"/>
  28.                     </bean>
  29.                 </property>
  30.             </bean>
  31.         </property>
  32.     </bean>
  34.     <!--3.将SpringMVC不能处理的请求交给tomcat-->
  35.     <mvc:default-servlet-handler/>
  37.     <!--4.配置view-controller-->
  38.     <mvc:view-controller path="/main.html" view-name="main"/>
  40.     <!--5.开启SpringMVC注解驱动-->
  41.     <mvc:annotation-driven/>
  43. </beans>

修改web.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
  5.          version="4.0">
  6.     <!--1.启动Spring容器-->
  7.     <!--加载Spring配置文件-->
  8.     <context-param>
  9.         <param-name>contextConfigLocation</param-name>
  10.         <param-value>classpath*:applicationContext.xml</param-value>
  11.     </context-param>
  12.     <listener>
  13.         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  14.     </listener>
  16.     <!--2.配置SpringMVC前端控制器，拦截前端所有请求-->
  17.     <servlet>
  18.         <servlet-name>dispatcherServlet</servlet-name>
  19.         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  20.         <init-param>
  21.             <param-name>contextConfigLocation</param-name>
  22.             <param-value>classpath:spring-mvc.xml</param-value>
  23.         </init-param>
  24.         <load-on-startup>1</load-on-startup>
  25.     </servlet>
  26.     <servlet-mapping>
  27.         <servlet-name>dispatcherServlet</servlet-name>
  28.         <url-pattern>/</url-pattern>
  29.     </servlet-mapping>
  31.     <!--3.字符编码过滤器,一定要放在所有过滤器之前-->
  32.     <filter>
  33.         <filter-name>characterEncodingFilter</filter-name>
  34.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  35.         <init-param>
  36.             <param-name>encoding</param-name>
  37.             <param-value>UTF-8</param-value>
  38.         </init-param>
  39.         <init-param>
  40.             <param-name>forceRequestEncoding</param-name>
  41.             <param-value>true</param-value>
  42.         </init-param>
  43.         <init-param>
  44.             <param-name>forceResponseEncoding</param-name>
  45.             <param-value>true</param-value>
  46.         </init-param>
  47.     </filter>
  48.     <filter-mapping>
  49.         <filter-name>characterEncodingFilter</filter-name>
  50.         <url-pattern>/*</url-pattern>
  51.     </filter-mapping>
  53.     <!--4.使用Rest风格的URI，将页面的post请求转为指定的delete或者put请求-->
  54.     <filter>
  55.         <filter-name>hiddenHttpMethodFilter</filter-name>
  56.         <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
  57.     </filter>
  58.     <filter-mapping>
  59.         <filter-name>hiddenHttpMethodFilter</filter-name>
  60.         <url-pattern>/*</url-pattern>
  61.     </filter-mapping>
  62. </web-app>

创建页面

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4.     <meta charset="UTF-8">
  5.     <title>用户列表</title>
  6. </head>
  7. <body>
  8. <div id="app">
  9.     <table border="1px" cellpadding="10px" cellspacing="0px" rules="all">
  10.         <tr>
  11.             <th>ID</th>
  12.             <th>用户名</th>
  13.             <th>密码</th>
  14.         </tr>
  15.         <tr v-for="(user,index) in userList" :key="user.id">
  16.             <td v-text="user.id"></td>
  17.             <td v-text="user.username"></td>
  18.             <td v-text="user.password"></td>
  19.         </tr>
  20.     </table>
  21. </div>
  22. </body>
  23. <script src="/ssm/js/vue.js"></script>
  24. <script src="/ssm/js/axios.min.js"></script>
  25. <script>
  26.     new Vue({
  27.         el: '#app',
  28.         data: {
  29.             userList: []
  30.         },
  31.         created() {
  32.             this.findAll()
  33.         },
  34.         methods: {
  35.             findAll() {
  36.                 console.log('aaa')
  37.                 axios({
  38.                     url: '/ssm/user/findAll',
  39.                     method: 'get'
  40.                 }).then(response => {
  41.                     this.userList = response.data.data
  42.                 })
  43.             }
  44.         }
  45.     })
  46. </script>
  47. </html>

测试

至此,SSM框架整合完毕,其他的增删改我就不一一测试了...开始进军SpringBoot

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