springMvc+spring+mybatis集成的mvc模型

1  项目总体结构

2  web.xml的配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 	
	xmlns:javaee="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">
  <!-- 
    spring root配置文件的位置
   -->
  <context-param>
  	<param-name>contextConfigLocation</param-name>
  	<param-value>classpath:applicationContext.xml</param-value>
  </context-param>	
  <!-- 通过监听器 在上下文被加载时 自动启动
       并且创建 WebApplicationContext对象 去加载spring中所有的bean -->
  <listener>
      <listener-class>
  	  org.springframework.web.context.ContextLoaderListener
  	  </listener-class>
  </listener>
  <!-- springmvc的装载 -->
  <servlet>
  
  	<servlet-name>SpringMvc</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<load-on-startup>1</load-on-startup>
  	<!-- 读取springmvc的配置文件 -->
  	<init-param>
	  	<param-name>contextConfigLocation</param-name>
	  	<param-value>/WEB-INF/applicationServlet.xml</param-value>
  	</init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>SpringMvc</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

3 applicationContext.xml的配置

<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-4.2.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
	">
	<!-- 扫描除了@Controller的注解 -->
	<context:component-scan base-package="com.odin.itms.*">
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	</context:component-scan>
	
	<!-- 加载jdbc文件 -->
	<context:property-placeholder location="classpath:jdbc.properties"/>
	
	<!-- 连接数据库，获取数据源 -->
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
		<property name="url" value="${url}"></property>
		<property name="driverClassName" value="${driverClassName}"></property>
		<property name="username" value="${uname}"></property>
		<property name="password" value="${password}"></property>
	</bean>
	
	<!--集成mybatis  -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	
	<!-- 创建SqlSessionTemplate用于控制事务自动提交  也可以是用 SqlSession中的所有方法-->
	<bean id="sqlTemplate" class="org.mybatis.spring.SqlSessionTemplate">
		<constructor-arg index="0" ref="sqlSessionFactory"></constructor-arg>
	</bean>
	
	<!-- 配置接口映射扫描工具类 -->
	<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<property name="basePackage" value="com.odin.itms.*.mapper"></property>
		<property name="beanName" value="sqlSessionFactory"></property>
	</bean>
	
	<!-- 配置全局事务管理器 -->
	<bean id="dataSourceTx" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	
	<!-- 配置事务的消息 -->
	<tx:advice id="txAdvise" transaction-manager="dataSourceTx">
		<tx:attributes>
			<tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED"/>
			<tx:method name="update*" isolation="DEFAULT" propagation="REQUIRED"/>
			<tx:method name="delete*" isolation="DEFAULT" propagation="REQUIRED"/>
			<tx:method name="*" read-only="true"/>
		</tx:attributes>
	</tx:advice>
	
	<aop:config>
		<aop:pointcut expression="execution(* com.odin.itms.*.service.*(..))" id="pointCutRef"/>
		<aop:advisor advice-ref="txAdvise" pointcut-ref="pointCutRef"/>
	</aop:config>
</beans>

4 applicatonServlet.xml的配置

<?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:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context-4.2.xsd
	http://www.springframework.org/schema/aop
	http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
	http://www.springframework.org/schema/mvc
	http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd"
>
	<!-- 配置springmvc  加载含有@Controller的bean -->
	<context:component-scan base-package="com.odin.itms.*">
		<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	</context:component-scan>
	<!-- 启动注解驱动 -->
	<mvc:annotation-driven></mvc:annotation-driven>
</beans>

5 jdbc.properties的配置

url=jdbc:oracle:thin:@localhost:1521:orcl
driverClassName=oracle.jdbc.OracleDriver
uname=zt
password=zt

6 login.jsp代码

<%@ 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=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
	<form action="login/login.do" method="post">
		用户：<input type="text" name="userName"/>
		<br />
		密码：<input type="password" name="password"/>
		<br/>
		<input type="submit" value="登录"/>
		<input type="reset"/>
	</form>
</body>
</html>

7 controller层的代码

package com.odin.itms.system.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;

import com.odin.itms.system.entity.User;
import com.odin.itms.system.service.UserService;

@Controller
@RequestMapping(value="login")
public class LoginController {

	@Autowired
	public UserService userService;
	
	@RequestMapping("/login")
	public String login(String userName,String password,ModelMap model){
		String msg="";
		User user=userService.login(userName);
		if(user==null){
			msg="用户不存在";
			model.addAttribute("msg", msg);
			return "forward:/error.jsp";
		}else if(user!=null){
			String pw=user.getPassword();
			if(pw!=null&&!"".equals(pw)){
				if(pw.equals(password)){
					msg="登录成功";
					model.addAttribute("msg", msg);
				}else{
					model.addAttribute("msg", msg);
					msg="账号或密码错误";
				}
			}else{
				model.addAttribute("msg", msg);
				msg="账号或密码错误";
			}
		}
		return "forward:/error.jsp";
	}
}

8 service层代码（dao层类似）

    1 实现类

package com.odin.itms.system.service.impl;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.odin.itms.system.dao.UserDao;
import com.odin.itms.system.entity.User;
import com.odin.itms.system.service.UserService;

@Service
public class UserServiceImpl implements UserService {

	@Autowired
	public UserDao userDao;
	public User login(String username) {
		return userDao.login(username);
	}

}

2 接口

package com.odin.itms.system.service;

import com.odin.itms.system.entity.User;

public interface UserService {

	public User login(String username);
}

9 mapper层代码

package com.odin.itms.system.mapper;

import org.apache.ibatis.annotations.Select;

import com.odin.itms.system.entity.User;

public interface UserMapper {

	@Select("select * from use t where username=#{userName}")
	public User login(String userName);
}