SSM-配置文件整合

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  1. pom.xml导入依赖
  2. 配置web.xml
  3. 创建SpringMVC的配置文件并配置
  4. 创建属性文件jdbc.properties
  5. 创建MyBatis的核心配置文件mybatis-config.xml
  6. 创建Mapper接口和映射文件
  7. 创建日志文件log4j.xml
  8. 创建Spring的配置文件并配置

  1. pom.xml导入依赖
  2. 配置web.xml
  3. 创建SpringMVC的配置文件并配置
  4. 创建属性文件jdbc.properties
  5. 创建MyBatis的核心配置文件mybatis-config.xml
  6. 创建Mapper接口和映射文件
  7. 创建日志文件log4j.xml
  8. 创建Spring的配置文件并配置

pom.xml导入依赖

<packaging>war</packaging>
<properties>
    <spring.version>5.3.1</spring.version>
</properties>
<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!--springmvc-->
    <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-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!-- Mybatis核心 -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>3.5.7</version>
    </dependency>
    <!--mybatis和spring的整合包-->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>2.0.6</version>
    </dependency>
    <!-- 连接池 -->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>druid</artifactId>
        <version>1.0.9</version>
    </dependency>
    <!-- junit测试 -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>
        <scope>test</scope>
    </dependency>
    <!-- MySQL驱动 -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.16</version>
    </dependency>
    <!-- log4j日志 -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.github.pagehelper/pagehelper -->   
    <dependency>
    <groupId>com.github.pagehelper</groupId>
    <artifactId>pagehelper</artifactId>
    <version>5.2.0</version>
    </dependency>
    <!-- 日志 -->
    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.2.3</version>
    </dependency>
    <!-- ServletAPI -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>com.fasterxml.jackson.core</groupId>
        <artifactId>jackson-databind</artifactId>
        <version>2.12.1</version>
    </dependency>
    <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
        <version>1.3.1</version>
    </dependency>
    <!-- Spring5和Thymeleaf整合包 -->
    <dependency>
        <groupId>org.thymeleaf</groupId>
        <artifactId>thymeleaf-spring5</artifactId>
        <version>3.0.12.RELEASE</version>
    </dependency>
</dependencies>

配置web.xml

<!-- 配置Spring的编码过滤器 -->
<filter>
    <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置处理请求方式PUT和DELETE的过滤器 -->
<filter>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filterclass>
</filter>
<filter-mapping>
    <filter-name>HiddenHttpMethodFilter</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置SpringMVC的前端控制器 -->
<servlet>
    <servlet-name>DispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servletclass>
    <!-- 设置SpringMVC的配置文件的位置和名称 -->
    <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>
<!-- 设置Spring的配置文件的位置和名称 -->
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:Spring.xml</param-value>
</context-param>
<!-- 配置Spring的监听器 -->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

创建SpringMVC的配置文件并配置

<!--扫描组件-->
<context:component-scan base-package="com.atguigu.ssm.controller">
</context:component-scan>
<!--配置视图解析器-->
<bean id="viewResolver"
      class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
    <property name="order" value="1"/>
    <property name="characterEncoding" value="UTF-8"/>
    <property name="templateEngine">
        <bean class="org.thymeleaf.spring5.SpringTemplateEngine">
            <property name="templateResolver">
                <bean
                      class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
                    <!-- 视图前缀 -->
                    <property name="prefix" value="/WEB-INF/templates/"/>
                    <!-- 视图后缀 -->
                    <property name="suffix" value=".html"/>
                    <property name="templateMode" value="HTML5"/>
                    <property name="characterEncoding" value="UTF-8" />
                </bean>
            </property>
        </bean>
    </property>
</bean>
<!-- 配置访问首页的视图控制 -->
<mvc:view-controller path="/" view-name="index"></mvc:view-controller>
<!-- 配置默认的servlet处理静态资源 -->
<mvc:default-servlet-handler />
<!-- 开启MVC的注解驱动 -->
<mvc:annotation-driven />

创建属性文件jdbc.properties

jdbc.user=root
jdbc.password=atguigu
jdbc.url=jdbc:mysql://localhost:3306/ssm?serverTimezone=UTC
jdbc.driver=com.mysql.cj.jdbc.Driver

创建MyBatis的核心配置文件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>
        <!--将下划线映射为驼峰-->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
    </settings>
    <plugins>
        <!--配置分页插件-->
        <plugin interceptor="com.github.pagehelper.PageInterceptor"></plugin>
    </plugins>
</configuration>

创建Mapper接口和映射文件

public interface EmployeeMapper {
List<Employee> getEmployeeList();
}

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.atguigu.ssm.mapper.EmployeeMapper">
    <select id="getEmployeeList" resultType="Employee">
        select * from t_emp
    </select>
</mapper>

创建日志文件log4j.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
    <appender name="STDOUT" class="org.apache.log4j.ConsoleAppender">
        <param name="Encoding" value="UTF-8" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%-5p %d{MM-dd HH:mm:ss,SSS} %m (%F:%L) \n" />
        </layout>
    </appender>
    <logger name="java.sql">
        <level value="debug" />
    </logger>
    <logger name="org.apache.ibatis">
        <level value="info" />
    </logger>
    <root>
        <level value="debug" />
        <appender-ref ref="STDOUT" />
    </root>
</log4j:configuration>

创建Spring的配置文件并配置

<?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">
    <!--扫描组件-->
    <context:component-scan base-package="com.atguigu.ssm">
        <context:exclude-filter type="annotation"expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!-- 引入jdbc.properties -->
    <context:property-placeholder location="classpath:jdbc.properties">
    </context:property-placeholder>
    <!-- 配置Druid数据源 -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driver}"></property>
        <property name="url" value="${jdbc.url}"></property>
        <property name="username" value="${jdbc.username}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>
     <!--配置事務管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!--开启事务的注解驱动
        通过注解@Transactional所标识的方法或标识的类中所有的方法，都会被事务管理器管理事务
        transaction-manager属性的默认值是transactionManager，如果事务管理器bean的id正好就是这个默认值，则可以省略这个属性 -->
    <tx:annotation-driven transaction-manager="transactionManager" />

    <!-- 配置用于创建SqlSessionFactory的工厂bean -->
    <bean class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 设置MyBatis配置文件的路径（可以不设置） -->
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <!-- 设置数据源 -->
        <property name="dataSource" ref="dataSource"></property>
        <!-- 设置类型别名所对应的包 -->
        <property name="typeAliasesPackage" value="com.atguigu.ssm.pojo"></property>
        <!--设置映射文件的路径，若映射文件所在路径和mapper接口所在路径一致，则不需要设置 (前提是配置了mapper接口的扫描)-->
        <!--<property name="mapperLocations" value="classpath:mapper/*.xml"></property>-->
    </bean>
    <!--
        配置mapper接口的扫描
        由mybatis-spring提供，可以将指定包下所有的mapper接口，通過SqlSession创建代理實現類對象，并将这些對象交給IOC容器管理
    -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.atguigu.ssm.mapper"></property>
    </bean>
</beans>

小結：

  • pom.xml

    • 導入依賴

  • web.xml

    • spring編碼過濾器
    • 處理請求方式的過濾器
    • springMVC的前端控制器及自訂義的配置文件位置
    • spring監聽器
    • spring自訂義的配置文件位置

  • springMVC.xml

    • 掃描組件
    • 視圖解析器
    • 默認的servlet處理靜態資源
    • 開啟mvc註解驅動
    • 視圖控制器
    • 文件上傳解析器

  • spring.xml

    • 掃描組件(除控制層)
    • 引入jdbc.properties文件
    • 數據源
    • 配置事務管理器
    • 開啟事務註解驅動

    ——-以下為整合mybatis-config.xml配置——

    • 配置SqlSessionFactoryBean
    • mapper接口的掃瞄

  • mybatis-config.xml –> 可在spring.xml內的配置SqlSessionFactoryBean中配置，若全部都配置在spring.xml中，則不須此配置文件

    • 引入jdbc.properties文件
    • 全局配置
    • 類型別名
    • 數據庫環境
    • 引入mybatis的映射文件
    • 配置分頁插件
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