简单的SSM框架电子商务项目

1、首先建立项目java web
2、导入mybatis所需的jar包
mybatis需要jar包：mybatis-3.3.0.jar
mysql驱动jar包：mysql-connector-java-5.1.15.-bin.jar
日志记录jar包：log4j.jar
3、创建数据库数据（以mysql为例子）

4、编写配置文件

①database.properties代码：

user=root
password=123456
driverClass=com.mysql.jdbc.Driver
jdbcUrl=jdbc:mysql://127.0.0.1:3306/webshop?useUnicode=true&characterEncoding=utf8

initialPoolSize=5
maxPoolSize=150

②log4j.properties代码：

# Root logger option
log4j.rootLogger=INFO, stdout, file
# Redirect log messages to console
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.systemOut.Threshold = DEBUG 
log4j.appender.systemOut.ImmediateFlush = TRUE 
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

# Redirect log messages to a log file, support file rolling.
log4j.appender.file1=org.apache.log4j.RollingFileAppender
log4j.appender.file1.File=E\:/tomcat/logs/NPES-Rolling.log
log4j.appender.file1.MaxFileSize=5MB
log4j.appender.file1.MaxBackupIndex=10
log4j.appender.file1.layout=org.apache.log4j.PatternLayout
log4j.appender.file1.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n

log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.DatePattern='.'yyyy-MM-dd
log4j.appender.file.File=E\:/tomcat/logs/NPES-Daily.log
log4j.appender.file.Append=true
log4j.appender.file.Threshold=INFO
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} %-5p %c{1}\:%L - %m%n 

#
log4j.logger.com.ibatis=DEBUG
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=DEBUG
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=DEBUG
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate=DEBUG
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

③spring-mvc.xml

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 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"
    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.xsd 
    http://www.springframework.org/schema/mvc 
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">

    
    <context:component-scan base-package="com.shop.controller" />



    
    <mvc:default-servlet-handler/>
    <mvc:annotation-driven />


    <mvc:interceptors>
    <bean class="com.shop.interceptor.basePathInerrapertor">bean>

    
    mvc:interceptors> 
    
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="defaultEncoding">
            <value>UTF-8value>
        property>
        <property name="maxUploadSize">
            <value>524288000value>
        property>
        <property name="maxInMemorySize">
            <value>4096value>
        property>
    bean>

beans>
④spring-mybatis.xml

<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-4.0.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">

    <context:component-scan base-package="com.shop.service.impl">context:component-scan>

    
    <context:property-placeholder location="classpath:database.properties"/>

    
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="user" value="${user}">property>
        <property name="password" value="${password}">property>
        <property name="driverClass" value="${driverClass}">property>
        <property name="jdbcUrl" value="${jdbcUrl}">property>
        <property name="initialPoolSize" value="${initialPoolSize}">property>
        <property name="maxPoolSize" value="${maxPoolSize}">property>
    bean>

    
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource">property>
    bean>

    
    <tx:annotation-driven transaction-manager="transactionManager"/>

    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="mapperLocations" value="classpath:com/shop/mapping/*.xml">property>
    bean>


    
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.shop.mapper">property>
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory">property>
    bean>
beans>

5、创建方法接口UserMapper.java和定义操作user表的sql映射文件UserMapping.xml

package com.shop.mapper;
import java.util.List;
import java.util.Map;
import com.shop.entity.User;
public interface UserMapper {
    //登录
  public User login(User user);
   //查询用户订单信息
  public List<User> findOrdersListResultMap(int user_id);
   //查询订单明细
  public List<User> findOrdersDetailList(int user_id);
  //根据用户名查询用户信息
  public User findByName(String username);
  //查询用户订单商品明细
  public List<User> findOrdersItemList(int user_id);
}



 <mapper namespace="com.shop.mapper.UserMapper">
 <resultMap type="com.shop.entity.User" id="userMap">
    <result property="user_id" column="user_id"/>
    <result property="username" column="username"/>
    <result property="pwd" column="pwd"/>
    <result property="address" column="address"/>       
resultMap> 

 <sql id="us">
    user_id,username,pwd,address
 sql>
 
 <select id="login" parameterType="com.shop.entity.User" resultMap="userMap">
    select <include refid="us">include> from user
    <where>
    username=#{username} and pwd=#{pwd}
    where>
 select>
 
  <select id="findByName" resultMap="userMap">
    select * from user where username=#{username}
  select>
 
 <select id="findOrdersListResultMap" resultType="com.shop.entity.OrdersCustom">  
    SELECT  
    orders.orders_id, 
    orders.user_id,
    orders.createtime,
    user.username,  
    user.address  
    FROM  
    orders,user  
    <where>
      orders.user_id = user.user_id  and user.user_id=#{user_id}
    where>  
 select>
 

 <select id="findOrdersDetailList" resultType="com.shop.entity.Userorderdetail">  
    SELECT  
    orders.orders_id, 
    orders.createtime,
    user.username,  
    user.address,    
    orderdetail.items_id,  
    orderdetail.items_num  
    FROM orders,user,orderdetail  
    <where>
     orders.user_id = user.user_id  
    and orders.orders_id =orderdetail.orders_id  and user.user_id=#{user_id}
    where> 
select>  


<select id="findOrdersItemList" statementType="CALLABLE" resultType="com.shop.entity.Userorderitem">
  
        {call QUERYITEMSBYUSER_ID(
        #{user_id, jdbcType=INTEGER, mode=IN}
        )}
  
select>
mapper>

6、创建方法接口UserService.java和接口实现类UserServiceImpl.java

package com.shop.service;

import java.util.List;

import com.shop.entity.User;
import com.shop.entity.Userorderitem;

public interface UserService {
    //登录
    public User getlogin(User user);
    //查询用户订单信息
    public List findOrdersListResultMap(String username);
     //查询订单明细
    public List findOrdersDetailList(String username);
    //查询用户订单商品明细
    public List findOrdersItemList(String username);
}

package com.shop.service.impl;

import java.util.List;

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

import com.shop.mapper.UserMapper;
import com.shop.entity.User;
import com.shop.entity.Userorderitem;
import com.shop.service.UserService;
@Service("userService")
public class UserServiceImpl implements UserService{

    @Autowired 
    UserMapper userMapper;
    //用户登录
    public User getlogin(User user) {
        System.out.println("****1");
        User userinfo = userMapper.login(user);
        System.out.println("****2");
        return userinfo;
    }
    //查询用户订单信息
    public List findOrdersListResultMap(String username) {
        User user = userMapper.findByName(username);
        int user_id = user.getUser_id();
        System.out.println("****3");
        List userlist = userMapper.findOrdersListResultMap(user_id);
        System.out.println("****4");
        return userlist;
    }
    public List findOrdersDetailList(String username) {
        User user = userMapper.findByName(username);
        int user_id = user.getUser_id();
        System.out.println("****5 id="+user_id);
        List userlist = userMapper.findOrdersDetailList(user_id);
        System.out.println("****6");
        return userlist;
    }
    public List findOrdersItemList(String username) {
        User user = userMapper.findByName(username);
        int user_id = user.getUser_id();
        System.out.println("****7 id="+user_id);
        List userlist = userMapper.findOrdersItemList( user_id);
        System.out.println("****8");
        return userlist;
    }
}

7、编写控制层代码与前台（略）由于时间关系，会在后续博文进行补充。
8、测试（略）