SSM整合的配置需求

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SSM整合

1.1 概述

在进行企业级项目开发时，我们需要将Spring、SpringMVC、MyBatis框架整合起来，共同完成开发工作。

SSM分工：

Spring 作为基础框架，整合其他框架
SpringMVC 作为Web开发框架，提供服务器开发支持
MyBatis 作为ORM框架，提供数据库开发支持

1.2 整合配置

1、添加依赖

		<dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.16</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.5.2</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.taglibs</groupId>
            <artifactId>taglibs-standard-impl</artifactId>
            <version>1.2.5</version>
        </dependency>

        <dependency>
            <groupId>org.apache.taglibs</groupId>
            <artifactId>taglibs-standard-compat</artifactId>
            <version>1.2.5</version>
        </dependency>

        <dependency>
            <groupId>org.apache.taglibs</groupId>
            <artifactId>taglibs-standard-jstlel</artifactId>
            <version>1.2.5</version>
        </dependency>

        <dependency>
            <groupId>org.apache.taglibs</groupId>
            <artifactId>taglibs-standard-spec</artifactId>
            <version>1.2.5</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.2.8.RELEASE</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>5.2.8.RELEASE</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.2.8.RELEASE</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>5.2.8.RELEASE</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.5</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.5</version>
        </dependency>

2、SpringMVC的配置 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">
    <!--配置视图处理器-->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"></property>
        <property name="suffix" value=".jsp"></property>
    </bean>

    <mvc:default-servlet-handler/>
    <mvc:annotation-driven/>
</beans>

3、MyBatis基础设置 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>
        <!-- 下划线转驼峰命名 -->
        <setting name="mapUnderscoreToCamelCase" value="true"/>
        <!-- 打印查询语句 -->
        <setting name="logImpl" value="STDOUT_LOGGING" />
        <!--配置懒加载-->
        <setting name="lazyLoadingEnabled" value="true"/>
        <!--执行所有属性按需加载-->
        <setting name="aggressiveLazyLoading" value="false"/>
    </settings>
</configuration>

4、Spring整合MyBatis配置 spring-mybatis.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">

    <!--配置C3P0数据源-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!--jdbc的配置-->
        <property name="driverClass" value="com.mysql.cj.jdbc.Driver"></property>
        <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/book_db?useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=UTC&amp;useSSL=false"></property>
        <property name="user" value="root"></property>
        <property name="password" value="123456"></property>
        <!--非必须-->
        <property name="maxPoolSize" value="100"></property>
        <property name="minPoolSize" value="10"></property>
        <property name="initialPoolSize" value="10"></property>
        <property name="maxStatements" value="200"></property>
    </bean>
    <!--配置会话工厂-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!--配置数据源-->
        <property name="dataSource" ref="dataSource"></property>
        <!--包的别名-->
        <property name="typeAliasesPackage" value="com.blb.bookms.entity"></property>
        <!--MyBatis配置文件路径-->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!--映射文件的路径-->
        <property name="mapperLocations" value="classpath:mappers/*.xml"></property>
    </bean>
    <!--配置映射接口的扫描器-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!--会话工厂名称-->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
        <!--接口的包位置-->
        <property name="basePackage" value="com.blb.bookms.dao"></property>
    </bean>
</beans>

5、Spring配置文件，导入SpringMVC和MyBatis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">

    <context:component-scan base-package="com.blb.bookms"></context:component-scan>

    <import resource="spring-mvc.xml"></import>
    <import resource="spring-mybatis.xml"></import>
</beans>

6、web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         id="WebApp_ID" version="3.1">
  <display-name>Archetype Created Web Application</display-name>
  
  <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:spring.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>

  <filter>
    <filter-name>encodingFilter</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>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

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SSM整合的配置需求

SSM整合

1.1 概述

1.2 整合配置

1、添加依赖

2、SpringMVC的配置 spring-mvc.xml

3、MyBatis基础设置 mybatis-config.xml

4、Spring整合MyBatis配置 spring-mybatis.xml

5、Spring配置文件，导入SpringMVC和MyBatis配置

6、web.xml

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