SSM-框架整合

一、需要的jar

1. spring(包括springmvc)
2. mybatis
3. mybatis-spring整合包
4. 数据库驱动
5. 第三方连接池。
6. Json依赖包Jackson

二、整合思路

Dao层:
1、SqlMapConfig.xml,空文件即可,但是需要文件头。
2、applicationContext-dao.xml
a)数据库连接Druid
b)SqlSessionFactory对象,需要spring和mybatis整合包下的。
c)配置mapper文件扫描器。Mapper动态代理开发 增强版

Service层:
1、applicationContext-service.xml包扫描器,扫描@service注解的类。
2、applicationContext-trans.xml配置事务。

Controller层:
1、Springmvc.xml
a)包扫描器,扫描@Controller注解的类。
b)配置注解驱动
c)配置视图解析器

Web.xml文件:
1、配置spring监听器
2、配置前端控制器。


三、 加入配置文件

1. SqlMapConfig.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>

</configuration>
2. jdbc.properties

配置数据库信息:

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/crm?characterEncoding=utf-8
jdbc.username=root
jdbc.password=root
3. log4j.properties

配置日志信息:

# Global logging configuration
log4j.rootLogger=DEBUG, stdout
# 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
4. applicationContext-dao.xml
需要配置:加载properties文件,数据源,SqlSessionFactory,Mapper扫描
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- 配置 读取properties文件 jdbc.properties -->
	<context:property-placeholder location="classpath:jdbc.properties" />

	<!-- 配置 数据源 -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
		<property name="driverClassName" value="${jdbc.driver}" />
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
	</bean>

	<!-- 配置SqlSessionFactory -->
	<bean class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 设置MyBatis核心配置文件 -->
		<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" />
		<!-- 设置数据源 -->
		<property name="dataSource" ref="dataSource" />
	</bean>

	<!-- 配置Mapper扫描 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- 设置Mapper扫描包 -->
		<property name="basePackage" value="cn.itcast.crm.mapper" />
	</bean>
</beans>
5. applicationContext-service.xml

配置service扫描:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- 配置Service扫描 -->
	<context:component-scan base-package="cn.itcast.crm.service" />
</beans>
6. applicationContext-trans.xml

配置事务管理:事务管理器、通知、切面

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- 事务管理器 -->
	<bean id="transactionManager"	class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- 数据源 -->
		<property name="dataSource" ref="dataSource" />
	</bean>

	<!-- 通知 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<!-- 传播行为 -->
			<tx:method name="save*" propagation="REQUIRED" />
			<tx:method name="insert*" propagation="REQUIRED" />
			<tx:method name="add*" propagation="REQUIRED" />
			<tx:method name="create*" propagation="REQUIRED" />
			<tx:method name="delete*" propagation="REQUIRED" />
			<tx:method name="update*" propagation="REQUIRED" />
			<tx:method name="find*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="select*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="get*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="query*" propagation="SUPPORTS" read-only="true" />
		</tx:attributes>
	</tx:advice>

	<!-- 切面 -->
	<aop:config>
		<aop:advisor advice-ref="txAdvice"
			pointcut="execution(* cn.itcast.crm.service.*.*(..))" />
	</aop:config>

</beans>
7. Springmvc.xml

配置SpringMVC表现层:Controller扫描、注解驱动、视图解析器

<?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:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
	<!-- 配置Controller扫描 -->
	<context:component-scan base-package="cn.itcast.crm.controller" />

	<!-- 配置注解驱动 -->
	<mvc:annotation-driven />

	<!-- 配置视图解析器 -->
	<bean	class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- 前缀 -->
		<property name="prefix" value="/WEB-INF/jsp/" />
		<!-- 后缀 -->
		<property name="suffix" value=".jsp" />
	</bean>
</beans>
8. Web.xml

配置SpringSpringMVC、解决post乱码问题

<?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_2_5.xsd"
	id="WebApp_ID" version="2.5">
	<display-name>boot-crm</display-name>
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>

	<!-- 配置spring -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:spring/applicationContext-*.xml</param-value>
	</context-param>

	<!-- 配置监听器加载spring -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- 配置过滤器,解决post的乱码问题 -->
	<filter>
		<filter-name>encoding</filter-name>	<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>encoding</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

	<!-- 配置SpringMVC -->
	<servlet>
		<servlet-name>boot-crm</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:spring/springmvc.xml</param-value>
		</init-param>
		<!-- 配置springmvc什么时候启动,参数必须为整数 -->
		<!-- 如果为0或者大于0,则springMVC随着容器启动而启动 -->
		<!-- 如果小于0,则在第一次请求进来的时候启动 -->
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>boot-crm</servlet-name>
		<!-- 所有的请求都进入springMVC -->
		<url-pattern>/</url-pattern>
	</servlet-mapping>
</web-app>


四、页面显示问题

访问页面,发现不能正常显示打开开发者工具,选择Network,发现cssjs等资源文件无法加载


原因:web.xml配置时,是设置所有的请求都进入SpringMVC。但是SpringMVC无法处理cssjs等静态资源,所以无法正常显示

解决方案:

1. springmvc.xml中配置

<!-- 解决静态资源无法被springMVC处理的问题 -->
<mvc:default-servlet-handler />

2. 修改web.xml,让所有以action结尾的请求都进入SpringMVC

<servlet-mapping>
	<servlet-name>boot-crm</servlet-name>
	<!-- 所有的请求都进入springMVC -->
	<url-pattern>*.action</url-pattern>
</servlet-mapping>

猜你喜欢

转载自blog.csdn.net/w_meng_h/article/details/80599074