SSM的整合

框架的整合:

1. 依赖整合
    aop的包:
        aspectweaver
        spring-aop
    spring核心:
        spring-context
        spring-web
        spring-webmvc
        spring-test
        spring-tx
        spring-jdbc
    junit:
        junit
    mysql:
        mysql-connector-java
    servlet+jsp:
        servlet-api
        jsp-api
    jstl:  
        jstl
    log:
        log4j
        slf4j-api
        slf4j-log4j12
    mybatis:
        mybatis
        mybatis-spring
    连接池:
        c3p0
        
    <properties>
        <spring.version>5.0.2.release</spring.version>
        <slf4j.version>1.6.6</slf4j.version>
        <log4j.version>1.2.12</log4j.version>
        <mysql.version>5.1.6</mysql.version>
        <mybatis.version>3.4.5</mybatis.version>    
    </properties>
     
    <dependencies>
       <!-- spring -->
       <dependency>
          <groupid>org.aspectj</groupid>
          <artifactid>aspectjweaver</artifactid>
          <version>1.6.8</version>
       </dependency>
     
       <dependency>
          <groupid>org.springframework</groupid>
          <artifactid>spring-aop</artifactid>
          <version>${spring.version}</version>
        </dependency>
     
    
       <dependency>
          <groupid>org.springframework</groupid>
          <artifactid>spring-context</artifactid>
          <version>${spring.version}</version>
        </dependency>
     
    
       <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-test</artifactid>
          <version>${spring.version}</version>
        </dependency>
     
    
       <dependency>
          <groupid>org.springframework</groupid>
          <artifactid>spring-tx</artifactid>
          <version>${spring.version}</version>
        </dependency>
     
    
       <dependency>
          <groupid>org.springframework</groupid>
          <artifactid>spring-jdbc</artifactid>
          <version>${spring.version}</version>
        </dependency>
     
    
       <dependency>
          <groupid>junit</groupid>
          <artifactid>junit</artifactid>
          <version>4.12</version>
          <scope>compile</scope>
        </dependency>
     
    
       <dependency>
          <groupid>mysql</groupid>
          <artifactid>mysql-connector-java</artifactid>
          <version>${mysql.version}</version>
        </dependency>
     
    
       <dependency>
          <groupid>javax.servlet</groupid>
          <artifactid>servlet-api</artifactid>
          <version>2.5</version>
          <scope>provided</scope>
        </dependency>
     
    
       <dependency>
          <groupid>javax.servlet.jsp</groupid>
          <artifactid>jsp-api</artifactid>
          <version>2.0</version>
          <scope>provided</scope>
        </dependency>
     
    
       <dependency>
          <groupid>jstl</groupid>
          <artifactid>jstl</artifactid>
          <version>1.2</version>
        </dependency>
     
    
       <!-- log start -->
        <dependency>
          <groupid>log4j</groupid>
          <artifactid>log4j</artifactid>
          <version>${log4j.version}</version>
        </dependency>
     
    
       <dependency>
          <groupid>org.slf4j</groupid>
          <artifactid>slf4j-api</artifactid>
          <version>${slf4j.version}</version>
        </dependency>
     
       <dependency>
          <groupid>org.slf4j</groupid>
          <artifactid>slf4j-log4j12</artifactid>
          <version>${slf4j.version}</version>
        </dependency>
               <!-- log end -->
        <dependency>
          <groupid>org.mybatis</groupid>
          <artifactid>mybatis</artifactid>
          <version>${mybatis.version}</version>
       </dependency>
       <dependency>
          <groupid>org.mybatis</groupid>
          <artifactid>mybatis-spring</artifactid>
          <version>1.3.0</version>
        </dependency>
     
    
       <dependency>
          <groupid>c3p0</groupid>
          <artifactid>c3p0</artifactid>
          <version>0.9.1.2</version>
          <type>jar</type>
          <scope>compile</scope>
        </dependency>
     </dependencies>    
    
2. 配置文件整合
    applicationcontext.xml的约束编写:
        <?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:aop="http://www.springframework.org/schema/aop"    
            xmlns:tx="http://www.springframework.org/schema/tx"    
            xsi:schemalocation="http://www.springframework.org/schema/beans     
            http://www.springframework.org/schema/beans/spring-beans.xsd    
            http://www.springframework.org/schema/context    
            http://www.springframework.org/schema/context/spring-context.xsd    
            http://www.springframework.org/schema/aop    
            http://www.springframework.org/schema/aop/spring-aop.xsd
            http://www.springframework.org/schema/tx     
            http://www.springframework.org/schema/tx/spring-tx.xsd">
            
             <!-- 开启注解扫描，要扫描的是service和dao层的注解，要忽略web层注解，因为web层让springmvc框架 去管理 -->    
             <context:component-scan base-package="cn.itcast">        
                 <!-- 配置要忽略的注解 -->        
                 <context:exclude-filter type="annotation" expression="org.springframework.stereotype.controller"/>    
             </context:component-scan> 
             
             <!--spring整合mybatis框架-->
            <!--配置c3p0连接池-->
            <bean id="datasource" class="com.mchange.v2.c3p0.combopooleddatasource">
                <property name="driverclass" value="com.mysql.jdbc.driver"/>
                <property name="jdbcurl" value="jdbc:mysql://localhost:3306/ssm"/>
                <property name="user" value="root"/>
                <property name="password" value="nrblwbb7"/>
            </bean>
        
            <!--配置sqlsessionfactory-->
            <bean id="sqlsessionfactory" class="org.mybatis.spring.sqlsessionfactorybean">
                <property name="datasource" ref="datasource"/>
            </bean>
        
            <!--配置映射接口所在的包-->
            <!--自动为接口生成代理对象,并将代理对象存在spring的ioc容器中-->
            <bean id="mapperscanner" class="org.mybatis.spring.mapper.mapperscannerconfigurer">
                <property name="basepackage" value="com.itheima.mapper"/>
            </bean>
        
        
            <!--配置spring框架声明式事务管理-->
            <!--配置事务管理器-->
            <bean id="transactionmanager" class="org.springframework.jdbc.datasource.datasourcetransactionmanager">
                <property name="datasource" ref="datasource"/>
            </bean>
            <!--配置事务通知-->
            <tx:advice id="txadvice" transaction-manager="transactionmanager">
                <tx:attributes>
                    <tx:method name="find*" read-only="true"/>
                    <tx:method name="*"/>
                </tx:attributes>
            </tx:advice>
            <!--配置aop增强,切面-->
            <aop:config>
                <aop:advisor advice-ref="txadvice" pointcut="execution(* com.itheima.service.impl.*.*(..))"/>
            </aop:config>
        
        </beans>
    
    springmvc.xml的配置文件的约束:
        <?xml version="1.0" encoding="utf-8"?>
        <beans xmlns="http://www.springframework.org/schema/beans"
               xmlns:mvc="http://www.springframework.org/schema/mvc"
               xmlns:context="http://www.springframework.org/schema/context"
               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
               http://www.springframework.org/schema/mvc
               http://www.springframework.org/schema/mvc/spring-mvc.xsd
               http://www.springframework.org/schema/context
               http://www.springframework.org/schema/context/spring-context.xsd">
        
            <!--开启注解扫描-->
            <context:component-scan base-package="com.itheima">
                <!--配置需要扫描的注解,只需要扫描controller注解就可以-->
                <context:include-filter type="annotation" expression="org.springframework.stereotype.controller"/>
            </context:component-scan>
        
            <!--配置视图解析器-->
            <bean id="internalresourceviewresolver" class="org.springframework.web.servlet.view.internalresourceviewresolver">
                <property name="prefix" value="/web-inf/pages/"/>
                <property name="suffix" value=".jsp"/>
            </bean>
        
            <!--配置静态资源过滤,不拦截-->
            <mvc:resources mapping="/js/**" location="/js/"></mvc:resources>
            <mvc:resources mapping="/images/**" location="/images/"></mvc:resources>
            <mvc:resources mapping="/css/**" location="/css/"></mvc:resources>
        
            <!--开启springmvc的注解驱动支持-->
            <mvc:annotation-driven></mvc:annotation-driven>
        
        </beans>
        
3. 创建项目的结构:
    domain
    controller
    mapper
    service
        impl
4. spring整合springmvc, 核心是需要在web.xml配置文件中加载applicationcontext.xml文件(也就是配置spring的监听器):
    <!--配置spring的监听器-->
    <listener>
        <listener-class>org.springframework.web.context.contextloaderlistener</listener-class>
    </listener>
    <!--配置加载类的配置文件-->
    <context-param>
        <param-name>contextconfiglocation</param-name>
        <param-value>classpath:applicationcontext.xml</param-value>
    </context-param>

    <!--配置前端控制器-->
    <servlet>
        <servlet-name>dispatcherservlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class>
        <!--加载springmvc的配置文件-->
        <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>


    <!--配置编码过滤器-->
    <filter>
        <filter-name>characterencoding</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>characterencoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
 
5. 在controller中注入service,测试是否整合成功,如果正常访问并输出,则说明spring整合springmvc成功

6. mybatis的配置
    <?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>
    
        <!--配置环境-->
        <environments default="mysql">
            <environment id="mysql">
                <transactionmanager type="jdbc"></transactionmanager>
                <datasource type="pooled">
                    <property name="driver" value="com.mysql.jdbc.driver"/>
                    <property name="url" value="jdbc:mysql://localhost:3306/ssm"/>
                    <property name="username" value="root"/>
                    <property name="password" value="nrblwbb7"/>
                </datasource>
            </environment>
        </environments>
    
    
    
        <!--引入映射配置文件-->
        <mappers>
            <package name="com.itheima.mapper" />
        </mappers>
    
    </configuration>

7. spring整合mybatis
    mybatis的配置文件总共包含了两个部分,一个是环境的配置,包括事务和数据源,这两个部分交给spring,最后还有一个映射配置文件,也交给spring去整合,最后mybatis的配置文件就可以删除了.
    
    在spring的配置文件中配置
        连接池
            <!--配置c3p0连接池-->
            <bean id="datasource" class="com.mchange.v2.c3p0.combopooleddatasource">
                <property name="driverclass" value="com.mysql.jdbc.driver"/>
                <property name="jdbcurl" value="jdbc:mysql://localhost:3306/ssm"/>
                <property name="user" value="root"/>
                <property name="password" value="nrblwbb7"/>
            </bean>
        配置sqlsessionfactory工厂
             <!--配置sqlsessionfactory-->
            <bean id="sqlsessionfactory" class="org.mybatis.spring.sqlsessionfactorybean">
                <property name="datasource" ref="datasource"/>
            </bean>
        配置mapper接口所在的包
            <!--配置映射接口所在的包-->
            <bean id="mapperscanner" class="org.mybatis.spring.mapper.mapperscannerconfigurer">
                <property name="basepackage" value="com.itheima.mapper"/>
            </bean>
            
8. 配置spring的事务管理
    <!--配置事务管理器-->
    <bean id="transactionmanager" class="org.springframework.jdbc.datasource.datasourcetransactionmanager">
        <property name="datasource" ref="datasource"/>
    </bean>
    <!--配置事务通知-->
    <tx:advice id="txadvice" transaction-manager="transactionmanager">
        <tx:attributes>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="*"/>
        </tx:attributes>
    </tx:advice>
    <!--配置aop增强,切面-->
    <aop:config>
        <aop:advisor advice-ref="txadvice" pointcut="execution(* com.itheima.service.impl.*.*(..))"/>
    </aop:config>

log4j日志

1. 日志级别:
    trace --> debug --> info --> warn --> error --> fatal
    

提供了两个模板，一个是mybatis使用注解，一个mybatis使用xml，可以去下载查看
https://www.jianguoyun.com/p/dtytbr0q7skpbxj2_nk