SSM（spring+springmvc+mybatis）初步整合一配置步骤：
步骤一、导入所需jar包
步骤二 、配置web.xml文件
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name></display-name>
<!--1.针对spring的配置 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param> <!-- 注册ServletContext监听器，创建容器对象，并且将ApplicationContext对象放到Application域中 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener> <!-- 针对SpringMVC的配置：：：：：：中央调度器：本质上一个serlvet 配置的关于SpringmVC组件 -->
<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:applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet> <servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping> <!--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>
<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> <welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
步骤三、准备我们的mybatis配置文件
<?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="cn/hmy/entity/IUserInfoDAO.xml" />
<!--
只需配置一次 但小配置文件必须放在dao包中，且与dao中的接口名称相同
<package name="cn.hmy.dao"/> -->
</mappers>
</configuration>
步骤四、准备对应的小配置文件
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="cn.hmy.dao.IUserInfoDAO"> <select id="add" parameterType="cn.hmy.entity.UserInfo">
insert into userinfo values(SEQ_SSM.nextval,#{uname},#{uage})
</select>
</mapper>
附：也可以使用别名
<?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> <typeAliases>
<package name="cn.hmy.entity"/>
</typeAliases> <mappers>
<mapper resource="cn/hmy/entity/IUserInfoDAO.xml" />
<!--
只需配置一次 但小配置文件必须放在dao包中，且与dao中的接口名称相同
<package name="cn.hmy.dao"/> -->
</mappers>
</configuration>
在小配置中parameterType="cn.hmy.entity.UserInfo" 就可以省略包名
步骤五、准备jsp页面
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>"> <title>添加</title>
</head> <body>
<form action="${pageContext.request.contextPath }/userAction.do" method="post">
用户名：<input name="uname"/> <br/>
用户年龄<input name="uage"/><br/>
<input type="submit" value="save"/>
</form>
</body>
</html>
步骤四、配置applicationContext.xml文件
注意：
（1）.创建sessionFactory的实现类 通过SqlSessionFactoryBean工厂对象
（2）此处的dao没有实现类 其实现类是通过动态代理得到的
所以我们注册dao时 用到了org.mybatis.spring.mapper.MapperScannerConfigurer 通过它的属性来配置
（3）.我们注册的dao没有id属性 ，当service引用其对象时
如果dao接口的名称为IXxxxDao,引用时就原样输出
如果dao接口的名称为XxxxDao,引用时首字母要小写
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <!-- 注册jdbc属性 -->
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties"></property>
</bean> <!--注册c3p0数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.className}"></property>
<property name="jdbcUrl" value="${jdbc.url}"></property>
<property name="user" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</bean> <!-- 配置sessionFactory -->
<bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
<property name="dataSource" ref="dataSource"></property>
</bean> <!--配置dao -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="sessionFactory"></property>
<property name="basePackage" value="cn.hmy.dao"></property>
</bean> <!--配置service -->
<bean id="userService" class="cn.hmy.service.UserInfoServiceImpl">
<property name="dao" ref="IUserInfoDAO"></property>
</bean> <!--配置controller -->
<bean id="/userAction.do" class="cn.hmy.controller.UserInfoController">
<property name="service" ref="userService"></property>
</bean> <!--配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean> <!--配置开启事务操作 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!--指定在连接方法上应用的事务属性 -->
<tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED"/>
</tx:attributes>
</tx:advice>
<!--aop配置 -->
<aop:config>
<aop:pointcut expression="execution(* *..service.*.*(..))" id="stockPointcut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="stockPointcut"/>
</aop:config> </beans>
配置完毕，
下面讲解代码
index.jsp提交后 会将请求提交给对应的controller,controller会模拟servlet拆解请求参数封装成对应的实体
package cn.hmy.controller; import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller; import cn.hmy.entity.UserInfo;
import cn.hmy.service.IUserInfoService; public class UserInfoController implements Controller{
private IUserInfoService service; public ModelAndView handleRequest(HttpServletRequest request,
HttpServletResponse response) throws Exception {
String uname=request.getParameter("uname");
Integer uage=Integer.valueOf(request.getParameter("uage")); UserInfo info=new UserInfo();
info.setUage(uage);
info.setUname(uname);
service.add(info);
return new ModelAndView("/welcome.jsp");
} public IUserInfoService getService() {
return service;
} public void setService(IUserInfoService service) {
this.service = service;
}
}
controller会逐级调用service,dao
package cn.hmy.service; import cn.hmy.dao.IUserInfoDAO;
import cn.hmy.entity.UserInfo; public class UserInfoServiceImpl implements IUserInfoService {
private IUserInfoDAO dao; public void add(UserInfo info) {
dao.add(info);
} public IUserInfoDAO getDao() {
return dao;
} public void setDao(IUserInfoDAO dao) {
this.dao = dao;
} }
package cn.hmy.dao; import cn.hmy.entity.UserInfo; /**
* 不需要dao的实现类，通过代理生成
* @author
*
*/
public interface IUserInfoDAO {
public void add(UserInfo info);
}
调用完成之后即添加完成之后，会返回ModelANdView视图，至此 我们的SSM初步整合完成