低耦合搭建SSM框架项目

心已赠人 2024-02-19 13:09 62阅读 0赞

低耦合搭建SSM框架项目（springMVC、spring、MyBatis）

1.SSM框架项目需要的jar包

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RoaW5rUGV0_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RoaW5rUGV0_size_16_color_FFFFFF_t_70 1][]

2.一些关键的配置文件

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">	
    	
    	
     <error-page>
         <error-code>404</error-code>
         <location>/resources/error/404.html</location>
     </error-page>
     <error-page>
         <error-code>500</error-code>
         <location>/resources/error/500.html</location>
     </error-page>
    	
    	
      <display-name>SSM测试</display-name>
      <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
      </welcome-file-list>
      
      
    	
    	<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>
      	
      	
      	
    	
    	<servlet>
    		<servlet-name>springmvc</servlet-name>
    		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    		
    	  	<init-param>
    	  		<param-name>contextConfigLocation</param-name>
    	  		<param-value>classpath:springmvc-servlet.xml</param-value>
    	  	</init-param>
    	  	
    	  	<load-on-startup>1</load-on-startup>
    	</servlet>
    	<servlet-mapping>
    		<servlet-name>springmvc</servlet-name>
    		
    		<url-pattern>/</url-pattern>
    	</servlet-mapping>
    	
    	
    	
    	
    	<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>
    </web-app>

spring的配置文件applicationContext.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: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/tx
    		http://www.springframework.org/schema/tx/spring-tx.xsd">
    		
    	
        <bean id="propertyPlaceholderConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        		
        		<property name="location" value="classpath:jdbc.properties"></property>
        </bean>	
    	
        
    	<bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
    			<property name="driverClassName" value="${driver}" />
    			<property name="url" value="${url}" />
    			<property name="username" value="${username}" />
    			<property name="password" value="${password}" />
    			
    			<property name="maxTotal" value="30"/>
    			
    			<property name="maxIdle" value="10"/>
    			
    			<property name="initialSize" value="5"/>
    	</bean>
    	
    	<bean id="txManager"   
            class="org.springframework.jdbc.datasource.DataSourceTransactionManager">   
            <property name="dataSource" ref="dataSource" />   
        </bean> 
        
    	<tx:annotation-driven transaction-manager="txManager" />
     	  
     	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
            <property name="dataSource" ref="dataSource" />  
            
            <property name="configLocation" value="classpath:com/mybatis/mybatis-config.xml"/>
        </bean>  
    	 
         <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         	
         	<property name="basePackage" value="com.dao"/>
         	<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
         </bean>
         
        <context:component-scan base-package="com.service"/>
    </beans>

springMVC的配置文件springmvc-servlet.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: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.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
            http://www.springframework.org/schema/task   
    	   	http://www.springframework.org/schema/task/spring-task.xsd">
    	
    	<context:component-scan base-package="com.controller.*" />
    	
    	
    	<bean
    		class="org.springframework.web.servlet.view.InternalResourceViewResolver"
    		id="internalResourceViewResolver">
    		
    		<property name="prefix" value="/view/" />
    		
    		<property name="suffix" value=".jsp" /> 
    	</bean>
    	
    	
    	<mvc:annotation-driven />
    	
    	<mvc:resources mapping="/resources/css/**" location="/resources/css/" ></mvc:resources> 
    	<mvc:resources mapping="/resources/js/**" location="/resources/js/" ></mvc:resources> 
    	<mvc:resources mapping="/resources/images/**" location="/resources/images/" ></mvc:resources> 
    	<mvc:resources mapping="/resources/error/**" location="/resources/error/" ></mvc:resources> 
    	
    	
    	
    	<bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
         <property name="exceptionMappings">
             <map>
                 <entry key="ResourceNotFoundException" value="common/error/resourceNotFoundError" />
                 <entry key="DataAccessException" value="common/error/dataAccessError" />
             </map>
         </property>
         <property name="statusCodes">
             <map>
                 <entry key="common/error/resourceNotFoundError" value="404" />
                 <entry key="common/error/dataAccessError" value="500" />
             </map>
         </property>
     </bean> 
    	   		
    </beans>

数据库配置文件jdbc.properties

driver=com.mysql.jdbc.Driver
    url=jdbc:mysql://localhost:3306/springtest?characterEncoding=utf8
    username=root
    password=123456

日志配置文件log4j.properties

# Global logging configuration
    log4j.rootLogger=ERROR, stdout
    # MyBatis logging configuration...
    log4j.logger.com.dao=DEBUG
    # Console output...
    log4j.appender.stdout=org.apache.log4j.ConsoleAppender
    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
    log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

mybatis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>
    	 <mappers>
            <mapper resource="com/mybatis/UserMapper.xml"/>
     	</mappers>
    </configuration>

注意：为了降低项目耦合度，将配置文件(如xml，properties)放到一个独立的文件夹config中

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RoaW5rUGV0_size_16_color_FFFFFF_t_70 2][]

\---------------------------------------------------------------------------------------------------------------------------------------------------------

项目下载地址链接：https://pan.baidu.com/s/1acakwEMtb9w0n7AbhXa1\_w  
提取码：576l  
复制这段内容后打开百度网盘手机App，操作更方便哦

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RoaW5rUGV0_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/383da13278584c6ca71f0932e1fb1f6a.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RoaW5rUGV0_size_16_color_FFFFFF_t_70 1]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/99e47fc04bbe4de19bfb6f9e255c3994.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1RoaW5rUGV0_size_16_color_FFFFFF_t_70 2]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/105b0a5f17dd4693ad46a62cb74cb999.png