Java-SSM分层配置整理

Java-SSM分层配置整理

01.Maven依赖

• pom.xml

  <dependencies>
      <!-- Mybatis依赖 -->
      <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
      <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis</artifactId>
          <version>3.5.6</version>
      </dependency>
      <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
      <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>
          <version>2.0.6</version>
      </dependency>
      
      <!-- Spring依赖 -->
      <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>5.3.10</version>
      </dependency>
      <!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jdbc</artifactId>
          <version>5.3.10</version>
      </dependency>
  
      <!-- 数据库&事务 -->
      <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
      <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>8.0.22</version>
      </dependency>
      <!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
      <dependency>
          <groupId>com.alibaba</groupId>
          <artifactId>druid</artifactId>
          <version>1.2.8</version>
      </dependency>
      <!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver -->
      <dependency>
          <groupId>org.aspectj</groupId>
          <artifactId>aspectjweaver</artifactId>
          <version>1.9.6</version>
          <scope>runtime</scope>
      </dependency>
  
      <!-- JavaWeb依赖 -->
      <!-- https://mvnrepository.com/artifact/javax.servlet/servlet-api -->
      <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>servlet-api</artifactId>
          <version>2.5</version>
          <scope>provided</scope>
      </dependency>
      <!-- https://mvnrepository.com/artifact/javax.servlet/jsp-api -->
      <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>jsp-api</artifactId>
          <version>2.0</version>
          <scope>provided</scope>
      </dependency>
      <!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
      <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>jstl</artifactId>
          <version>1.2</version>
      </dependency>
  
      <!-- 其它依赖 -->
      <!-- https://mvnrepository.com/artifact/junit/junit -->
      <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.13.1</version>
          <scope>test</scope>
      </dependency>
  
  </dependencies>
  
  <!-- 开启java目录资源过滤，Mybatis读取Mapper.xml需要该配置 -->
  <build>
      <resources>
          <resource>
              <directory>src/main/resources</directory>
              <includes>
                  <include>**/*.properties</include>
                  <include>**/*.xml</include>
              </includes>
          </resource>
          <resource>
              <directory>src/main/java</directory>
              <includes>
                  <include>**/*.properties</include>
                  <include>**/*.xml</include>
              </includes>
          </resource>
      </resources>
  </build>

02.web.xml

• 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">
  
      <!-- 1. DispatcherServlet -->
      <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:applicationContext.xml</param-value>
          </init-param>
          <load-on-startup>1</load-on-startup>
      </servlet>
      <servlet-mapping>
          <servlet-name>springmvc</servlet-name>
          <url-pattern>/</url-pattern>
      </servlet-mapping>
  
      <!-- 2. 乱码过滤 -->
      <filter>
          <filter-name>encoding</filter-name>
          <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
          <init-param>
              <param-name>encoding</param-name>
              <param-value>utf-8</param-value>
          </init-param>
      </filter>
      <filter-mapping>
          <filter-name>encoding</filter-name>
          <url-pattern>/*</url-pattern>
      </filter-mapping>
  
      <!-- 3. session -->
      <session-config>
          <session-timeout>15</session-timeout>
      </session-config>
  
  </web-app>

03.jdbc.properties

• jdbc.properties

  jdbc.driverClassName=com.mysql.jdbc.Driver
  jdbc.url=jdbc:mysql://localhost:3306/jdbc_test?useSSL=false&characterEncoding=utf8&serverTimezone=Asia/Shanghai
  jdbc.username=root
  jdbc.password=rootroot

04.mybatis-config.xml

• mybatis-config.xml

  <?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>
  
      <settings>
          <!-- 开启日志：STDOUT_LOGGING | LOG4J -->
          <setting name="logImpl" value="STDOUT_LOGGING"/>
      </settings>
  
      <typeAliases>
          <package name="cn.cnyasin.pojo"/>
      </typeAliases>
  
      <mappers>
          <mapper class="cn.cnyasin.dao.BookMapper"/>
      </mappers>
  
  </configuration>

05.applicationContext.xml

• applicationContext.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"
         xsi:schemaLocation="
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
  ">
      <!-- 导入其他配置文件 -->
      <import resource="spring-mvc.xml"/>
      <import resource="spring-service.xml"/>
      <import resource="spring-dao.xml"/>
  
  </beans>

06.spring-dao.xml

• spring-dao.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"
         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">
  
      <!-- 1. 关联数据库配置文件 -->
      <context:property-placeholder location="classpath:jdbc.properties"/>
  
      <!-- 2. 连接池：c3p0 dbcp druid -->
      <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
          <property name="driverClassName" value="${jdbc.driverClassName}"/>
          <property name="url" value="${jdbc.url}"/>
          <property name="username" value="${jdbc.username}"/>
          <property name="password" value="${jdbc.password}"/>
      </bean>
  
      <!-- 3. sqlSessionFactory -->
      <bean name="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
          <property name="dataSource" ref="dataSource"/>
          <property name="configLocation" value="classpath:mybatis-config.xml"/>
      </bean>
  
      <!-- 4. 配置dao接口扫描包，动态实现了dao接口可以注入到Spring容器中 -->
      <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
          <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
          <property name="basePackage" value="cn.cnyasin.dao"/>
      </bean>
  </beans>

07.spring-mvc.xml

• spring-mvc.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">
  
      <!-- 1. 扫描包：controller -->
      <context:component-scan base-package="cn.cnyasin.controller"/>
      <!-- 2. 静态资源过滤 -->
      <mvc:default-servlet-handler/>
      <!-- 3. 注解驱动 -->
      <mvc:annotation-driven/>
  
      <!-- 4. 视图解析器 -->
      <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
          <!-- 前缀 -->
          <property name="prefix" value="/WEB-INF/jsp/"/>
          <!-- 后缀 -->
          <property name="suffix" value=".jsp"/>
      </bean>
  
      <!-- 5. JSON乱码处理：需要导入jackson依赖 -->
  
  </beans>

08.spring-service.xml

• spring-service.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:aop="http://www.springframework.org/schema/aop"
         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 https://www.springframework.org/schema/tx/spring-tx.xsd 
         http://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop.xsd">
  
      <!-- 1. 扫描service下的包 -->
      <context:component-scan base-package="cn.cnyasin.service"/>
  
      <!-- 2. 声明试事务 -->
      <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
          <property name="dataSource" ref="dataSource"/>
      </bean>
  
      <!-- 2.1 aop横切试事务 -->
      <!-- 配置事务通知 -->
      <tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager">
          <tx:attributes>
              <tx:method name="*"/>
              <!--<tx:method name="add*"/>-->
          </tx:attributes>
      </tx:advice>
      <!-- 配置事务切入点 -->
      <aop:config>
          <aop:pointcut id="pointcut" expression="execution(* cn.cnyasin.service.*.*(..))"/>
          <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut"/>
      </aop:config>
  
      <!-- 2.2 开启事务注解 -->
      <!--<tx:annotation-driven transaction-manager="transactionManager"/>-->
  
      <!-- 3. 将业务类注入到Spring，可以通过配置或注解实现 -->
      <bean id="bookServiceImpl" class="cn.cnyasin.service.BookServiceImpl">
          <property name="bookMapper" ref="bookMapper"/>
      </bean>
  
  </beans>