SSM——三大框架整合搭建

SSM整合:

首先确保工程没有问题:写个jsp页面,通过网站测试一下能否成功,如果测试通过,则按下方步骤搭建即可:

  1. 按实际情况建几个包,后期会新建类用于测试框架是否搭建成功

    1. cn.java.controller.front
    2. cn.java.entity
    3. cn.java.mapper
    4. cn.java.service.impl
  2. 新建外部资源包,用于存放配置文件(xml文件)

  3. springmvc.xml配置
    3.1. 配置包扫描

    <!-- 扫描包 -->
    <context:component-scan base-package="cn.java.controller.*,cn.java.service.impl"/>
    

    3.2. 开启MVC注解

     <!-- 开启MVC注解 -->
     <mvc:annotation-driven/>
    

    3.3. 配置视图解析器

     <!-- 视图解析器 -->
     <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
      	<!-- 配置前缀 -->
     	 <property name="prefix" value="/pages/"></property>
     	 <!-- 配置后缀 -->
      	<property name="suffix" value=""></property>
     </bean>
    

    3.4. 配置文件上传

     <!-- 文件上传 -->
     <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
      	<!-- 编码 -->
     	 <property name="defaultEncoding" value="utf-8"></property>
     	 <!-- 文件上传大小:1M -->
      	<property name="maxUploadSize" value="1048576"></property>
     </bean>
    

    3.5. 配置数据校验

     <!-- 数据校验 -->
     <mvc:annotation-driven validator="validator"/>
     <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
      	<property name="providerClass" value="org.hibernate.validator.HibernateValidator"></property>
     </bean>
    

    3.6. 最终完整的springmvc.xml配置参考

    <?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:mvc="http://www.springframework.org/schema/mvc"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:task="http://www.springframework.org/schema/task"
     xsi:schemaLocation="http://www.springframework.org/schema/beans 
       http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
       http://www.springframework.org/schema/mvc 
       http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd 
       http://www.springframework.org/schema/context 
       http://www.springframework.org/schema/context/spring-context-4.2.xsd 
       http://www.springframework.org/schema/task   
          http://www.springframework.org/schema/task/spring-task-4.2.xsd">
          
     	<!-- 扫描包 -->
     	<context:component-scan base-package="cn.java.controller.*,cn.java.service.impl"/>
     
     	<!-- 开启MVC注解 -->
     	<mvc:annotation-driven/>
     
     	<!-- 视图解析器 -->
     	<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
      		<!-- 配置前缀 -->
      		<property name="prefix" value="/pages/"></property>
      		<!-- 配置后缀 -->
      		<property name="suffix" value=""></property>
     	</bean>
     
     	<!-- 文件上传 -->
     	<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
      		<!-- 编码 -->
      		<property name="defaultEncoding" value="utf-8"></property>
      		<!-- 文件上传大小:1M -->
      		<property name="maxUploadSize" value="1048576"></property>
     	</bean>
     
     	<!-- 数据校验 -->
     	<mvc:annotation-driven validator="validator"/>
     	<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
      		<property name="providerClass" value="org.hibernate.validator.HibernateValidator"></property>
     	</bean>
    </beans>
    
  4. mybatis.xml配置:此处只是一个mybatis.xml配置模板,实际情况该配置文件可以不写,因为在整合的过程中所有内容都已经写入applicationContext.xml中,

    <?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>
     	<!-- 配置数据库连接环境:driver、url、username、password -->
     	<environments default="mysql">
      		<!-- 开始配置mysql -->
      		<environment id="mysql">
       			<!--配置事务  -->
       			<transactionManager type="JDBC"></transactionManager>
       			<!-- 配置数据源 -->
       			<dataSource type="POOLED">
        				<property name="driver" value="com.mysql.jdbc.Driver"/>
        				<property name="url" value="jdbc:mysql:///数据库名(别忘记)"/>
        				<property name="username" value="root"/>
        				<property name="password" value="root"/>
       			</dataSource>
      		</environment>
     	</environments>
     
     	<!-- 关联局部配置文件 -->
     	<mappers>
      		<mapper resource="cn/java/dao/impl/UserDaoImpl.xml(局部配置文件路径,别忘了)"/>
     	</mappers>
    </configuration>
    
  5. applicationContext.xml配置:
    5.1. 配置数据源

     <!-- 配置数据源:BasicDataSource -->
     <bean id="basicDataSource" class="org.apache.commons.dbcp.BasicDataSource">
      	<!-- 驱动 -->
      	<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
      	<!-- url -->
      	<property name="url" value="jdbc:mysql:///SSM"></property>
      	<!-- username -->
      	<property name="username" value="root"></property>
      	<!-- password -->
      	<property name="password" value="root"></property>
     </bean>
    

    5.2. 扫描mybatis的局部配置文件

     <!-- 扫描mybatis框架中局部xml文件 -->
     <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
      	<!-- 指定数据源 -->
      	<property name="dataSource" ref="basicDataSource"></property>
      	<!-- 指定xml存放位置 -->
      	<property name="mapperLocations" value="classpath*:cn/java/mapper/*.xml"></property>
     </bean>
    

    5.3. 扫描dao层类文件

     <!-- 扫描dao层类文件 -->
        <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         	<property name="basePackage" value="cn.java.mapper"></property>
        </bean>
    

    5.4. applicationContext.xml完整配置内容

    <?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:p="http://www.springframework.org/schema/p"
     xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
     xsi:schemaLocation="
           http://www.springframework.org/schema/beans 
           http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-4.2.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
           
     	<!-- 配置数据源:BasicDataSource -->
     	<bean id="basicDataSource" class="org.apache.commons.dbcp.BasicDataSource">
      		<!-- 驱动 -->
      		<property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
      		<!-- url -->
      		<property name="url" value="jdbc:mysql:///SSM"></property>
      		<!-- username -->
      		<property name="username" value="root"></property>
    		<!-- password -->
      		<property name="password" value="root"></property>
     	</bean>
     
     	<!-- 扫描mybatis框架中局部xml文件 -->
     	<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
     		 <!-- 指定数据源 -->
      		<property name="dataSource" ref="basicDataSource"></property>
      		<!-- 指定xml存放位置 -->
      		<property name="mapperLocations" value="classpath*:cn/java/mapper/*.xml"></property>
     	</bean>
     
     	<!-- 扫描dao层类文件 -->
        	<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         		<property name="basePackage" value="cn.java.mapper"></property>
        	</bean>
    </beans>
    
  6. web.xml配置
    6.1. 配置中文乱码过滤器

      <!-- 配置中文乱码过滤器 -->
      <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>
      </filter>
    <filter-mapping>
       	<filter-name>characterEncodingFilter</filter-name>
       	<url-pattern>/*</url-pattern>
      </filter-mapping>
    

    6.2. 读取applicationContext.xml文件

      <!-- 读取applicationContext.xml -->
      <context-param>
       	<param-name>contextConfigLocation</param-name>
       	<param-value>classpath:applicationContext.xml</param-value>
      </context-param>
      <listener>
       	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      </listener>
    

    6.3. 配置springmvc核心类

      <!-- 配置springMVC框架核心类:DispathcherServlet,并且读取springMVC.xml -->
      <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:springmvc.xml</param-value>
       	</init-param>
       	<load-on-startup>1</load-on-startup>
      	</servlet>
      <servlet-mapping>
       	<servlet-name>dispatcherServlet</servlet-name>
       	<url-pattern>*.do</url-pattern>
      </servlet-mapping>
    

    6.4. web.xml完整配置

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
      	<display-name>SSM</display-name>
      	<welcome-file-list>
        		<welcome-file>index.jsp</welcome-file>
      	</welcome-file-list>
      
      	<!-- 配置中文乱码过滤器 -->
      	<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>
    	</filter>
    	<filter-mapping>
       		<filter-name>characterEncodingFilter</filter-name>
       		<url-pattern>/*</url-pattern>
      	</filter-mapping>
      
      	<!-- 读取applicationContext.xml -->
      	<context-param>
       		<param-name>contextConfigLocation</param-name>
       		<param-value>classpath:applicationContext.xml</param-value>
      	</context-param>
      	<listener>
       		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
      	</listener>
      
      	<!-- 配置springMVC框架核心类:DispathcherServlet,并且读取springMVC.xml -->
      	<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:springmvc.xml</param-value>
       		</init-param>
       		<load-on-startup>1</load-on-startup>
      	</servlet>
    	<servlet-mapping>
       		<servlet-name>dispatcherServlet</servlet-name>
       		<url-pattern>*.do</url-pattern>
      	</servlet-mapping>
    </web-app>
    

至此,SSM框架已完全搭建完成,往下是对上面配置的一些优化和改进,对上面的代码没有影响

使用properties配置文件配置applicationContext.xml中的数据源

  1. 书写jdbc.properties文件:

    #mysql
    driver=com.mysql.jdbc.Driver
    url=jdbc:mysql:///SSM
    username=root
    password=root
    
  2. 配置读取.properties文件的工具类

     <!-- 配置读取.properties文件的工具类 -->
     <bean id="propertyPlaceholderConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
     	<property name="location" value="classpath:jdbc.properties"></property>
     </bean>
    
  3. 配置数据源:将之前的数据源配置变为下方:

     <!-- 配置数据源:BasicDataSource -->
     <bean id="basicDataSource" class="org.apache.commons.dbcp.BasicDataSource">
     	 <!-- 驱动 -->
      	<property name="driverClassName" value="${driver}"></property>
     	 <!-- url -->
      	<property name="url" value="${url}"></property>
      	<!-- username --> 
      	<property name="username" value="${username}"></property>
      	<!-- password -->
      	<property name="password" value="${password}"></property>
     </bean>
    

配置p6spy

  1. 书写properties文件
    #p6spy
    driver=com.p6spy.engine.spy.P6SpyDriver
    url=jdbc:p6spy:mysql://localhost:3306/SSM
    username=root
    password=root
    
  2. 导入spy.properties文件

整合log4j

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