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SSM框架整合（xml配置版）

王栩的文字 2022-04-04 阅读 107
spring

1、修改pom.xml文件，添加依赖和插件

<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <maven.compiler.source>1.8</maven.compiler.source>
  <maven.compiler.target>1.8</maven.compiler.target>
</properties>

<dependencies>
  <!--Spring核心容器-->
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>5.2.8.RELEASE</version>
  </dependency>
  <!--Spring事务管理-->
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-tx</artifactId>
    <version>5.2.8.RELEASE</version>
  </dependency>
  <!--Spring的jdbc操作数据库的依赖，包含Spring自带数据源，jdbcTemplate-->
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>5.2.8.RELEASE</version>
  </dependency>
  <!--Spring MVC的核心-->
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>5.2.8.RELEASE</version>
  </dependency>
  <!--MyBatis核心-->
  <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>3.5.2</version>
  </dependency>
  <!--MyBatis的分页插件-->
  <dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper</artifactId>
    <version>5.1.10</version>
  </dependency>
  <!--MyBatis整合Spring的依赖-->
  <dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>2.0.1</version>
  </dependency>
  <!--mysql数据库驱动-->
  <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.22</version>
  </dependency>
  <!--Druid数据源-->
  <dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.20</version>
  </dependency>
  <!--servlet-api ：引入servlet的功能-->
  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>javax.servlet-api</artifactId>
    <version>3.1.0</version>
    <scope>provided</scope>
  </dependency>
  <!--jsp-api: jsp页面的功能包 -->
  <dependency>
    <groupId>javax.servlet.jsp</groupId>
    <artifactId>jsp-api</artifactId>
    <version>2.2</version>
    <scope>provided</scope>
  </dependency>
  <!-- JSTL标签库 -->
  <dependency>
    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
  </dependency>
  <dependency>
    <groupId>taglibs</groupId>
    <artifactId>standard</artifactId>
    <version>1.1.2</version>
  </dependency>
  <!--jackson坐标-->
  <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.9.2</version>
  </dependency>
  <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.9.2</version>
  </dependency>
  <dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.9.0</version>
  </dependency>

  <!--日志开始-->
  <!--引入日志的门脸-->
  <dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-log4j12</artifactId>
    <version>1.6.1</version>
  </dependency>
  <!-- 日志工具包 -->
  <dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
    <version>2.10.0</version>
  </dependency>
  <!--日志核心包-->
  <dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.10.0</version>
  </dependency>
</dependencies>

<build>
  <finalName>DormitoryManagementSystem</finalName>
  <plugins>
    <plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-compiler-plugin</artifactId>
      <version>3.8.0</version>
      <configuration>
        <source>1.8</source>
        <target>1.8</target>
        <encoding>UTF-8</encoding>
      </configuration>
    </plugin>
  </plugins>
</build>

2、修改web.xml文件

2.1、配置dispatcherServlet前端控制器

<!-- 配置Spring MVC前端核心控制器 -->
<servlet>
   <servlet-name>dispatcherServlet</servlet-name>
   <servlet-class>
        org.springframework.web.servlet.DispatcherServlet
   </servlet-class>
   <init-param>
      <!-- contextConfigLocation为默认值-->
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
   </init-param>
   <!-- 配置服务器启动后立即加载Spring MVC配置文件 -->
       <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
   <servlet-name>dispatcherServlet</servlet-name>
   <!--/:拦截所有请求（除了jsp）-->
   <url-pattern>/</url-pattern>
</servlet-mapping>

2.2、配置spring文件和监听器

<!-- 配置加载Spring文件的监听器-->
<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>

2.3、配置字符编码过滤器

<!-- 配置字符编码过滤器 -->
<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>
   <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
   </init-param>
</filter>
<filter-mapping>
   <filter-name>encoding</filter-name>
   <url-pattern>/*</url-pattern>
</filter-mapping>

3、resources目录下创建spring-mvc.xml文件

3.1、开启自动扫描，扫描controller包

<!-- 配置包扫描器，扫描@Controller注解的类 -->
<context:component-scan base-package="com.itheima.controller" />

3.2、开启MVC注解驱动

<!-- 加载注解驱动 -->
<mvc:annotation-driven />

3.3、配置静态文件访问映射

<!--配置静态资源的访问映射，此配置中的文件，将不被前端控制器拦截 -->
<mvc:resources location="/js/" mapping="/js/**"/>
<mvc:resources location="/css/" mapping="/css/**"/>
<mvc:resources location="/fonts/" mapping="/fonts/**"/>
<mvc:resources location="/images/" mapping="/images/**"/>
<mvc:resources location="/lib/" mapping="/lib/**"/>
<mvc:resources location="/layui_exts/" mapping="/layui_exts/**"/>

3.4、配置视图解析器

<!-- 配置视图解析器 -->
<bean class=
   "org.springframework.web.servlet.view.InternalResourceViewResolver">
   <property name="prefix" value="/WEB-INF/jsp/" />
   <property name="suffix" value=".jsp" />
</bean>

4、resource目录下创建db.properties文件

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/（数据库名）?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=root

5、resources目录下创建spring.xml文件

5.1、开启自动扫描，扫描service包

<!-- 扫描Service --> 
<context:component-scan base-package="com.itheima.service" />

5.2、加载db.properties文件，配置数据源

 <!-- 读取db.properties -->
   <context:property-placeholder location="classpath:db.properties"/>
   <!-- 配置数据源 -->
<bean id="dataSource" 
                          class="org.apache.commons.dbcp2.BasicDataSource">
   <!--数据库驱动 -->
   <property name="driverClassName" value="${jdbc.driver}" />
   <!--连接数据库的url -->
   <property name="url" value="${jdbc.url}" />
   <!--连接数据库的用户名 -->
   <property name="username" value="${jdbc.username}" />
   <!--连接数据库的密码 -->
   <property name="password" value="${jdbc.password}" />
</bean>

5.3、配置事务管理器

<!-- 事务管理器，依赖于数据源 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
   <property name="dataSource" ref="dataSource" />
</bean>

5.4、注册事务管理器驱动

<!-- 开启事务注解 -->
<tx:annotation-driven transaction-manager="transactionManager"/>

5.5、创建sqlSessionFactory对象

<!-- 配置MyBatis工厂SqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
     <!--注入数据源 -->
     <property name="dataSource" ref="dataSource" />
     <!--指定核MyBatis心配置文件位置 -->
      <property name="configLocation" value="classpath:mybatis-config.xml" />
</bean>

5.6、扫描dao包，创建动态代理对象，自动存储到Spring IOC容器中

<!-- 配置mapper扫描器 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
   <property name="basePackage" value="com.itheima.dao"/>
</bean>

6、resources目录下创建mybatis.xml文件

6.1、自动扫描包的形式自定义别名

<!-- 别名定义 -->
<typeAliases>
   <package name="com.itheima.pojo" />
</typeAliases>

6.2、分页插件

<plugins>

        <plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin>

</plugins>

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