基本配置：jdk1.8   tomcat 8  MyEclipse

先打好地基：

spring配置文件 application.xml：

[code]<?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:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- 通过注解，将Service的生命周期纳入Spring的管理 -->
<context:annotation-config />
<!-- 通过注解，将Service的生命周期纳入Spring的管理 -->
<context:component-scan base-package="service"></context:component-scan>
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">

<!-- 配置数据源 -->
<property name="driverClassName">
<value>com.microsoft.sqlserver.jdbc.SQLServerDriver</value>
</property>

<property name="url">
<value>jdbc:sqlserver://localhost:1433;DatabaseName=Organic
</value>
</property>

<property name="username">
<value>sa</value>
</property>

<property name="password">
<value>123456</value>
</property>

</bean>
<!-- 扫描存放SQL语句的Shop.xml -->
<bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="typeAliasesPackage" value="pojo"></property>
<property name="dataSource" ref="dataSource"></property>
<property name="mapperLocations" value="classpath:mapper/*.xml"></property>
</bean>
<!-- 扫描Mapper，并将其生命周期纳入Spring的管理 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="mapper"></property>
</bean>

<!--4.配置事务管理器  -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>

<!--5.开启注解进行事务管理   transaction-manager：引用上面定义的事务管理器-->
<tx:annotation-driven transaction-manager="transactionManager"/>

</beans>

springMVC配置文件 :

[code]<?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:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<!--  扫描Controller,并将其生命周期纳入Spring管理 -->
<context:component-scan base-package="controller">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!--  注解驱动，以使得访问路径与方法的匹配可以通过注解配置 -->
<mvc:annotation-driven/>
<!-- 静态页面，如html,css,js,images可以访问 -->
<mvc:default-servlet-handler />

<!-- 视图定位 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>

web.xml 配置：

[code]<?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"
xmlns:web="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" version="2.5">
<display-name>OrganicShopWithSSM</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>

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

<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!-- spring mvc核心：分发servlet -->
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- spring mvc的配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springMVC.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<!--配置由Spring 提供的针对中文乱码的编码过滤器 -->
<!-- 编码过滤器 -->
<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>
</filter>
<filter-mapping>
<filter-name>CharacterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

</web-app>

开始第一层啦：

pojo包：UserInfo 类

[code]package pojo;

public class UserInfo {
private String uid;
private String name;
private String email;
private String password;
public String getUid() {
return uid;
}
public void setUid(String uid) {
this.uid = uid;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "UserInfo [uid=" + uid + ", name=" + name + ", email="
+ email + ", password=" + password + "]";
}

}

mapper层：（注意mybatis的xml文件也要放在mapper层）

ShopMapping.java:

其中@Param注解 是为了和xml中的查询参数进行绑定

[code]package mapper;

import org.apache.ibatis.annotations.Param;
import pojo.UserInfo;
public interface ShopMapper {
public void register(@Param("name")String name,@Param("email")String email,@Param("password")String password);
public UserInfo login(@Param("email")String email,@Param("password")String password);
public int findUser(@Param("email")String email);

}

Shop.xml

[code]<?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="mapper.ShopMapper">
<select id="login" resultType="UserInfo" parameterType="String" >
select * from UserInfo where email=#{email} and password=#{password}
</select>

<select id="register" resultType="UserInfo">
insert into UserInfo(name,email,password) values (#{name},#{email},#{password})
</select>

<select id="findUser" resultType="int">
select count(*) from UserInfo where email=#{email}
</select>

</mapper>

service层：其实在写登陆的时候用了int类型，在想登陆也只要在数据库中查询表单输入的数据就行了，在mapper层的xml的文件中也写了 select count(*) 查询个数，  但是结果并不好，因为我要做的还有设置session。

[code]package service;

import pojo.UserInfo;

public interface ShopService {
//用户注册
void regist(String name,String email,String password);
//用户登录
UserInfo login(String  email,String password);
//验证
int findUser(String email);

}

service实现层：service.Impl

[code]package service.Impl;

import mapper.ShopMapper;

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

import pojo.UserInfo;
import service.ShopService;

@Service
public class ShopServiceImpl implements ShopService {
@Autowired
public ShopMapper sm;

@Override
public void regist(String name, String email, String password) {
sm.register(name, email, password);
}

@Override
public UserInfo login(String email, String password) {
UserInfo user=sm.login(email, password);
if(user!=null &&user.getPassword().equals(password)){
return user;
}
return null;

}

@Override
public int findUser(String email) {
if(sm.findUser(email)==0){
return 0;
}
return 1;
}

}

controller层：

[code]package controller;

import javax.servlet.http.HttpSession;

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

import pojo.UserInfo;
import service.ShopService;

@Controller
@RequestMapping("")
public class ShopController {
@Autowired
public ShopService ss;

@RequestMapping(value = "registerUser", method = RequestMethod.POST)
public String registerUser(String name, String email, String password) {
int findUser = ss.findUser(email);

if (findUser == 0) {
ss.regist(name, email, password);
// System.out.println("可以注册");
return "login";
} else {
// System.out.println("注册失败");
return "register";
}
}

@RequestMapping(value = "loginUser", method = RequestMethod.POST)
public String loginUser(UserInfo user, HttpSession session) {
// 调用service方法
user = ss.login(user.getEmail(), user.getPassword());

if (user != null) {
session.setAttribute("u".user);
return "index";
}
return "login";

}

@RequestMapping("/outLogin")
public String outLogin(HttpSession session){
session.invalidate();
return "index";

}
}

在controller层当中，关于注册的格式要求还需要自行搜索一下，主要讲一下的是登陆。在登陆的这个方法中传递了两个形式参数，UserInfo是实体类，HttpSssion是设置session的关键，后面通过session.setAttribute()设置session，这也是在上文中提到的需要session的部分。在后来的注销中可以使用session.invalidate。

第一次写文，文章漏洞百出，还望各位指正，一起学习。