Spring+SpringMvc+Mybatis配置文件解读

最新推荐文章于 2022-03-22 19:13:09 发布

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最新推荐文章于 2022-03-22 19:13:09 发布

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分类专栏：学习笔记文章标签： ssm 学习笔记

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最近使用SSM,在完成项目之后，记录一下自己在工作中用的和学到的东西。

首先是SSM项目比较常见的pom.xml

  <!-- 分页助手 -->  
  	<dependency>
	    <groupId>com.github.pagehelper</groupId>
	    <artifactId>pagehelper</artifactId>
	    <version>5.0.0</version>
	</dependency>
	
	<!-- mybatis逆向工程 -->
	<dependency>
		<groupId>org.mybatis.generator</groupId>
		<artifactId>mybatis-generator-core</artifactId>
		<version>1.3.5</version>
	</dependency>
	
	<!-- 测试 -->
    <dependency>
	     <groupId>junit</groupId>
	     <artifactId>junit</artifactId>
	     <version>4.12</version>
	     <scope>test</scope>
    </dependency>
    
    <!-- spring框架的依赖 -->
    <dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-webmvc</artifactId>
		<version>4.3.7.RELEASE</version>
	</dependency>
	
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-jdbc</artifactId>
		<version>4.3.7.RELEASE</version>
	</dependency>
	
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-test</artifactId>
		<version>4.3.7.RELEASE</version>
	</dependency>
	
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-aspects</artifactId>
		<version>4.3.7.RELEASE</version>
	</dependency>
	
	<!-- 数据校验 -->
	<dependency>
		<groupId>org.hibernate</groupId>
		<artifactId>hibernate-validator</artifactId>
		<version>5.4.1.Final</version>
	</dependency>
	
	<!-- 使用@ResponseBody返回JASON数据所需要的jackson的依赖 -->
	<dependency>
		<groupId>com.fasterxml.jackson.core</groupId>
		<artifactId>jackson-databind</artifactId>
		<version>2.8.8</version>
	</dependency>
	
	
	
	
	<!-- Mybatis -->
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis</artifactId>
		<version>3.4.2</version>
	</dependency>
	
	<!-- Spring整合Mybatis -->
	<dependency>
		<groupId>org.mybatis</groupId>
		<artifactId>mybatis-spring</artifactId>
		<version>1.3.1</version>
	</dependency>
	
	<!-- C3P0数据库连接池 -->
	<dependency>
		<groupId>c3p0</groupId>
		<artifactId>c3p0</artifactId>
		<version>0.9.1</version>
	</dependency>
	
	<!-- 使用mysql数据库 -->
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<version>5.1.41</version>
	</dependency>
	
	<!-- jstl 和servlet-api的依赖 -->
	<dependency>
		<groupId>jstl</groupId>
		<artifactId>jstl</artifactId>
		<version>1.2</version>
	</dependency>


	<dependency>
		<groupId>javax.servlet</groupId>
		<artifactId>javax.servlet-api</artifactId>
		<version>3.0.1</version>
		<scope>provided</scope>
	</dependency>
	
	<!-- 使用文件上传需要的两个依赖 -->
	<dependency>
    		<groupId>commons-fileupload</groupId>
    		<artifactId>commons-fileupload</artifactId>
    		<version>1.2.1</version>
	</dependency>
	
	<dependency>
    		<groupId>commons-io</groupId>
    		<artifactId>commons-io</artifactId>
    		<version>2.1</version>
	</dependency>
	
	<!-- 解析Excel文件需要的依赖 -->
	<dependency>
    		<groupId>org.apache.poi</groupId>
    		<artifactId>poi</artifactId>
    		<version>3.10-FINAL</version>
	</dependency>
	<dependency>
    		<groupId>org.apache.poi</groupId>
    		<artifactId>poi-ooxml</artifactId>
    		<version>3.10-FINAL</version>
	</dependency>

下面是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:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">
	
	<!-- 自动扫包的配置 -->
	<context:component-scan base-package="com.cgsr">
		<context:exclude-filter type="annotation"
			expression="org.springframework.stereotype.Controller" />
	</context:component-scan>

	<!-- Spring的配置文件，这里主要配置和业务逻辑有关的 -->
	<!--=================== 数据源，事务控制，xxx ================-->
	<context:property-placeholder location="classpath:dbconfig.properties" />
	<bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
		<property name="driverClass" value="${jdbc.driverClass}"></property>
		<property name="user" value="${jdbc.user}"></property>
		<property name="password" value="${jdbc.password}"></property>
	</bean>

	<!--================== 配置和MyBatis的整合=============== -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 指定mybatis全局配置文件的位置 -->
		<property name="configLocation" value="classpath:mybatis-config.xml"></property>
		<property name="dataSource" ref="pooledDataSource"></property>
		<!-- 指定mybatis，mapper文件的位置 -->
		<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
	</bean>

	<!-- 配置扫描器，将mybatis接口的实现加入到ioc容器中 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!--扫描所有dao接口的实现，加入到ioc容器中 -->
		<property name="basePackage" value="com.cgsr.boims.dao"></property>
	</bean>
	

	<!-- ===============事务控制的配置 ================-->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!--控制住数据源  -->
		<property name="dataSource" ref="pooledDataSource"></property>
	</bean>
	<tx:annotation-driven transaction-manager="transactionManager"/>
	<!--开启基于注解的事务，使用xml配置形式的事务（必要主要的都是使用配置式）  -->
	<aop:config>
		<!-- 切入点表达式 -->
		<aop:pointcut expression="execution(* com.cgsr.boims.service..*.*(..))" id="txPoint"/>
		<!-- 配置事务增强 -->
		<aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"/>
	</aop:config>
	
	<!--配置事务增强，事务如何切入  -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<!-- 所有方法都是事务方法 -->
			<tx:method name="*" propagation="REQUIRED"/>
			<!--以get开始的所有方法  -->
			<tx:method name="get*" read-only="true"/>
		</tx:attributes>
	</tx:advice>
	<!-- Spring配置文件的核心点（数据源、与mybatis的整合，事务控制） -->
</beans>

mybatis的配置文件mybatis.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>  
         <!-- 关闭延迟加载 -->  
         <setting name="lazyLoadingEnabled" value="false" /> 
         <!-- <setting name="logImpl" value="STDOUT_LOGGING" /> --> 
    </settings>
	<typeAliases>
		<package name="com.cgsr.boims.bean"/>
	</typeAliases>
	
	<!-- 配置这个才能使用分页助手 -->
	<plugins>
		<plugin interceptor="com.github.pagehelper.PageInterceptor">
			<!--分页参数合理化  -->
			<property name="reasonable" value="true"/>
		</plugin>
	</plugins>
</configuration>

web.xml的配置

<?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">
	
	<!--1、启动Spring的容器  -->
	<!-- needed for ContextLoaderListener -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>

	<!-- ContextLoaderListener的作用就是启动Web容器时，自动装配ApplicationContext.xml的配置信息。
	因为它实现了ServletContextListener这个接口，在web.xml配置这个监听器，启动容器时，就会默认执行它实现的方法。 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
	<!--2、springmvc的前端控制器，拦截所有请求  -->
	<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:dispatcherServlet.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>

	<!-- 拦截所有的请求 -->
	<servlet-mapping>
		<servlet-name>dispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	
	<!-- 3、字符编码过滤器，一定要放在所有过滤器之前 -->
	<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>forceRequestEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
		<init-param>
			<param-name>forceResponseEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	
	<welcome-file-list>  
    	<welcome-file>/WEB-INF/views/login.jsp</welcome-file> 
	</welcome-file-list> 
</web-app>

springMvc的配置文件dispatchServlet.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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd">

	<!--SpringMVC的配置文件，包含网站跳转逻辑的控制，配置  -->
	<context:component-scan base-package="com.cgsr" use-default-filters="false">
		<!--只扫描控制器。  -->
		<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	</context:component-scan>
	
	<!--配置视图解析器，方便页面返回  -->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/views/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
	
	<!--两个标准配置  -->
	<!-- 将springmvc不能处理的请求交给tomcat -->
	<mvc:default-servlet-handler/>
	<!-- 能支持springmvc更高级的一些功能，JSR303校验，快捷的ajax...映射动态请求 -->
	<mvc:annotation-driven/>
	
	<bean id="multipartResolver"    
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    
        <!-- one of the properties available; the maximum file size in bytes -->    
        <property name="maxUploadSize" value="10485760" />    
    </bean>
    
    <mvc:interceptors>    
    	<mvc:interceptor>
	        <!-- 匹配的是url路径， 如果不配置或/**,将拦截所有的Controller -->  
	        <mvc:mapping path="/index" />
	        <mvc:mapping path="/showTender" />
	        <bean class="com.cgsr.boims.interceptor.UserInterceptor"></bean>    
    	</mvc:interceptor>  
    <!-- 当设置多个拦截器时，先按顺序调用preHandle方法，然后逆序调用每个拦截器的postHandle和afterCompletion方法 -->  
	</mvc:interceptors>
</beans>

db.propertites

jdbc.jdbcUrl=jdbc:mysql://127.0.0.1/mkdlp?useUnicode=true&characterEncoding=utf8
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.user=root
jdbc.password=root

主要的配置文件就记录完成了，在开发过程中要记得标记上响应的注解。