同美商城（一）

一、商城整体架构

二、需求分析

三、数据库设计

四、maven热部署

   1、配置多个tomcat

       a、配置jdk环境

      b、修改端口三个地方

      c、创建maven项目，输入命令：tomcat:run（第一次运行需要下载jar）

   2、热部署

        a、给tomcat配置账号密码，找到tomcat-users.xml文件写入：

       <role rolename="manager-gui"/>
       <role rolename="manager-script" />
       <user username="admin" password="123" roles="manager-gui,manager-script" />

        b、配置pom.xml文件，添加插件（第一次运行需要下载jar包）

         <plugins>  
            <plugin>
               <groupId>org.apache.tomcat.maven</groupId>
               <artifactId>tomcat7-maven-plugin</artifactId>
               <version>2.2</version>
               <configuration>
                 <url>http://localhost:8888/manager/text</url>
                 <path>/</path>
                 <username>admin</username>
                 <password>123</password>
              </configuration>
            </plugin>
         </plugins> 

       c、部署到tomcat：

                   tomcat7:deploy        存在，则不再重新部署

                   tomcat7:redeploy       每次重新部署

五、框架搭建

       1、配置pox.xml文件，配置项目所需jar

       2、配置web.xml:

                 配置spring监听器

    <context-param>
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath:application-context.xml</param-value>
    </context-param>
    
    <listener>
          <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

       3、创建anotation.xml配置文件

<?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:mvc="http://www.springframework.org/schema/mvc"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans    
                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
                        http://www.springframework.org/schema/context    
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd    
                        http://www.springframework.org/schema/mvc    
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  
     <!-- spring扫描@service -->            
    <context:component-scan base-package="cn.tongmei">
         <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    
    <context:annotation-config/>
</beans>

         4、创建jdbc.properties和jdbc.xml文件，并配置：

            jdbc.properties文件(由于mysql版本为8.0.11，所以这个配置会稍有不一样)

driverClass=com.mysql.cj.jdbc.Driver
jdbcUrl=jdbc:mysql://127.0.0.1:3306/shopping?serverTimezone=UTC&characterEncoding=UTF-8&useSSL=false
user=root
password=

            jdbc.xml文件

<?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:mvc="http://www.springframework.org/schema/mvc"  
    xsi:schemaLocation="http://www.springframework.org/schema/beans    
                        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd    
                        http://www.springframework.org/schema/context    
                        http://www.springframework.org/schema/context/spring-context-3.1.xsd    
                        http://www.springframework.org/schema/mvc    
                        http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">  
    <!-- 配置c3p0 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
       <property name="driverClass" value="${driverClass}"/>      
       <property name="jdbcUrl" value="${jdbcUrl}"/>      
       <property name="user" value="${user}"/>      
       <property name="password" value="${password}"/>  
    </bean>
</beans>

         5、配置property.xml文件，读取jdbc配置

     <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
          <property name="locations">
               <list>
                  <!-- jdbc的配置 -->
                  <value>classpath:properties/jdbc.properties</value>
                  <!-- memcached的配置 -->
               </list>
          </property>
    </bean>

         6、配置mybatis.xml文件

   <!-- mybatis配置 -->
   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
          <property name="dataSource" ref="dataSource"/>
          <property name="mapperLocations" value="classpath:cn/tongmei/croe/dao/*.xml"/>
          <property name="typeAliasesPackage" value="cn.tongmei.croe.bean"></property>
   </bean>
   <!-- 扫包 -->
   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
          <property name="basePackage" value="cn.tongmei.croe.dao"/>
   </bean>

       7、事务管理transation.xml:

    <!--spring 事务管理  -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    </bean>
    <!-- 开启注解事务 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>

     8、UserInfoDAO.xml映射文件的配置

<?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.tongmei.croe.dao.UserInfoDAO">
     
    <insert id="add" parameterType="UserInfo">
        insert into user_info (user_name,user_sex)
        values(#{userName},#{userSex})
    </insert>
     
</mapper>

     9、事务管理注释@Transactional的用法

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import cn.tongmei.croe.bean.UserInfo;
import cn.tongmei.croe.dao.UserInfoDAO;
import cn.tongmei.croe.service.IUserInfoService;
@Service
@Transactional
public class UserInfoServiceImpl implements IUserInfoService {
	@Autowired
	private UserInfoDAO userDAO;
	public void addUser(UserInfo user){
		int i=userDAO.add(user);
		System.out.println(i);
		throw new RuntimeException("运行异常");
	}

}

       10、测试类的编写

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import cn.tongmei.croe.bean.UserInfo;
import cn.tongmei.croe.service.IUserInfoService;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations= {"classpath:application-context.xml"})
public class UserTest {
	@Autowired
	IUserInfoService service;
	@Test
	public void testAdd(){
		UserInfo user=new UserInfo();
		user.setUserName("华安");
		user.setUserSex("男");
		service.addUser(user);
		
	}
}

六、springmvc配置

       1.创建后台配置文件springmvc-back.xml

<context:component-scan base-package="cn.liu"
        use-default-filters="false">
        <context:include-filter type="annotation"
            expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
    <!-- jsp视图 -->
    <bean id="jspViewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/back_page/" />
        <property name="suffix" value=".jsp" />
    </bean>

       2.创建前台配置文件springmvc-front.xml 

<context:component-scan base-package="cn.liu"
        use-default-filters="false">
        <context:include-filter type="annotation"
            expression="org.springframework.stereotype.Controller" />
    </context:component-scan>
    <!-- jsp视图 -->
    <bean id="jspViewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/back_page/" />
        <property name="suffix" value=".jsp" />
    </bean>

       3.配置web.xml

<!-- springmvc 后台配置 -->
    <servlet>
        <servlet-name>back</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc-back.xml</param-value>
        </init-param>
          
    </servlet>
    <servlet-mapping>
        <servlet-name>back</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
      
    <!-- springmvc 前台配置 -->
    <servlet>
        <servlet-name>front</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:springmvc-front.xml</param-value>
        </init-param>
          
    </servlet>
    <servlet-mapping>
        <servlet-name>front</servlet-name>
        <url-pattern>*.shtml</url-pattern>
    </servlet-mapping>

七、springmvc乱码问题

      在web.xml配置过滤器：

<!-- 过滤器 过滤乱码 -->
    <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>