搭建SSM框架整合环境

在搭建环境前我们需要在项目中加入SSM框架所需的jar包

部署环境暂且只需要这些包，写功能的话再根据功能添加jar包。
把jar包复制到lib目录后，不要忘记添加到项目里。

现在开始编写SSM框架的配置文件，加上web工程的配置文件一共是四个。

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\">
	<display-name>SSM_Test</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>

	<!-- 配置中央前端控制器 -->
	<servlet>
		<servlet-name>springmvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<!-- 拦截浏览器发送的所有请求 -->
		<url-pattern>/</url-pattern>
	</servlet-mapping>

	<!-- 配置spring容器启动监听器 -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<!-- spring配置文件路径 -->
		<param-value>classpath:config/applicationContext.xml</param-value>
	</context-param>
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>

	<!-- 过滤字符编码 -->
	<filter>
		<filter-name>CharacterEncodingFilter</filter-name>
		<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
		<init-param>
			<!-- 字符编码格式为utf-8 -->
			<param-name>encoding</param-name>
			<param-value>utf-8</param-value>
		</init-param>
		<init-param>
			<!-- 将字符强制转换为我们自定义的格式 -->
			<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>
		<!-- 拦截所有 -->
		<url-pattern>/*</url-pattern>
	</filter-mapping>

</web-app>

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: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.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd\">

	<!-- 开启注解，扫描指定包下所有控制器类 -->
	<context:component-scan base-package=\"com.javaweb.controller\"/>
	
	<!-- 配置视图资源解析器 -->
	<bean class=\"org.springframework.web.servlet.view.InternalResourceViewResolver\">
		<property name=\"prefix\" value=\"/WEB-INF/pages/\"></property>
		<property name=\"suffix\" value=\".jsp\"></property>
	</bean>
	
</beans>

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\"
	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-4.0.xsd\">

	<!-- 配置数据源 -->
	<bean id=\"basicDataSource\" class=\"org.apache.commons.dbcp.BasicDataSource\">
		<property name=\"driverClassName\" value=\"com.mysql.jdbc.Driver\"></property>
		<property name=\"url\" value=\"jdbc:mysql://localhost:3306/ssm\"></property>
		<property name=\"username\" value=\"root\"></property>
		<property name=\"password\" value=\"admin\"></property>
	</bean>
	
	<!-- 配置事务管理 -->
	<bean class=\"org.springframework.jdbc.datasource.DataSourceTransactionManager\">
		<property name=\"dataSource\" ref=\"basicDataSource\"></property>
	</bean>
	
	<!-- 创建SqlSessionFactoryBean
		 加载mybatis配置文件，扫描指定包下所有实体映射文件 -->
	<bean class=\"org.mybatis.spring.SqlSessionFactoryBean\">
		<property name=\"dataSource\" ref=\"basicDataSource\"></property>
		<property name=\"configLocation\" value=\"classpath:config/mybatisConfig.xml\"></property>
		<property name=\"mapperLocations\" value=\"classpath*:com/javaweb/dao/*.xml\"></property>
	</bean>
	
	<!-- 扫描接口层 -->
	<bean class=\"org.mybatis.spring.mapper.MapperScannerConfigurer\">
		<property name=\"basePackage\" value=\"com.javaweb.dao\"></property>
	</bean>
	
</beans>

mybatisConfig.xml

<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<!DOCTYPE configuration PUBLIC \"mybatis-config\" \"mybatis-3-config.dtd\" >
<configuration>
	
	<!-- 为指定包下所有实体类设置别名 -->
	<typeAliases>
		<package name=\"com.javaweb.bean\"/>
	</typeAliases>

</configuration>

附一张目录结构，在配置文件里填写到的包也不能落下，否则程序运行时找不到该包会报异常。

最后写一个jsp页面测试一下

<%@ page language=\"java\" contentType=\"text/html; charset=UTF-8\"
    pageEncoding=\"UTF-8\"%>
<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">
<html>
<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">
<title>Insert title here</title>
</head>
<body>
	<h1>部署成功！</h1>
</body>
</html>

运行项目，控制台没有报异常，index页面成功显示，SSM框架整合的环境就部署出来了。