08分布式电商项目 - 框架搭建

工程结构分析与设计

最终完整的工程结构如下：

创建数据库

执行资源文件夹中 pinyougou-db.sql

搭建框架

顶级父工程

创建 Maven 工程 pinyougou-parent （POM） ，groupId 为 com.pinyougou ,artifactId 为pinyougou-parent , 在 pom.xml 中 添 加 锁 定 版 本 信 息 dependencyManagement 与pluginManagement，详见“资源/配置文件/pom.xml”。

以下模块均继承自此父工程

通用实体类模块

创建通用实体类模块-pinyougou-pojo

通用数据访问模块

创建通用数据访问模块 pinyougou-dao .添加依赖 Mybatis 和 pinyougou-pojo。

<dependencies>

  <!-- Mybatis -->
  <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
  </dependency>

  <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
  </dependency> 
  
  <dependency>
      <groupId>com.github.miemiedev</groupId>
      <artifactId>mybatis-paginator</artifactId>
  </dependency>
  
  <!-- MySql -->
  <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
  </dependency>
  
  <!-- 连接池 -->
  <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
  </dependency>
  
  <dependency>
      <groupId>com.pinyougou</groupId>
      <artifactId>pinyougou-pojo</artifactId>
      <version>0.0.1-SNAPSHOT</version>
  </dependency>
 
 </dependencies>

将“配置文件/数据访问层”下的配置文件拷贝到 pinyougou-dao 工程。

通用工具类模块

创建通用工具类模块 pinyougou-common

商家商品服务接口 模块

创建 maven（jar）模块 pinyougou-sellergoods-interface , pom.xml 添加依赖。

<dependencies>
   <dependency>
     <groupId>com.pinyougou</groupId>
     <artifactId>pinyougou-pojo</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </dependency>
</dependencies>

商家商品服务模块

创建 maven（war）模块 pinyougou-sellergoods-service ，pom.xml 引入依赖。

<dependencies>
  
  <!-- Spring -->
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-beans</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aspects</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jms</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context-support</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-test</artifactId>
  </dependency>
 
<!-- dubbo 相关 -->
  <dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>dubbo</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.apache.zookeeper</groupId>
    <artifactId>zookeeper</artifactId>
  </dependency>
  
  <dependency>
    <groupId>com.github.sgroschupf</groupId>
    <artifactId>zkclient</artifactId>
  </dependency>
  
  <dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
  </dependency>
  
  <dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
  </dependency>
  
  <dependency>
    <groupId>javassist</groupId>
    <artifactId>javassist</artifactId>
  </dependency>
  
  <dependency>
     <groupId>commons-codec</groupId>
     <artifactId>commons-codec</artifactId> 
  </dependency>
  
  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <scope>provided</scope>
  </dependency> 
  
   <dependency>
     <groupId>com.pinyougou</groupId>
     <artifactId>pinyougou-common</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </dependency>
   
   <dependency>
     <groupId>com.pinyougou</groupId>
     <artifactId>pinyougou-dao</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </dependency>
   
   <dependency>
     <groupId>com.pinyougou</groupId>
     <artifactId>pinyougou-sellergoods-interface</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </dependency>
   
 </dependencies>
 
 <build>
  <plugins>
    <!-- 配置 Tomcat 插件 -->
    <plugin>
      <groupId>org.apache.tomcat.maven</groupId>
      <artifactId>tomcat7-maven-plugin</artifactId>
      <configuration>
        <path>/</path>
        <port>9001</port>
      </configuration>
    </plugin>
  </plugins>
 </build>
</project>

在 webapps 下创建 WEB-INF/web.xml ，加载 spring 容器。

<?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"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
 version="2.5">

<!-- 加载 spring 容器 -->
<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath*:spring/applicationContext*.xml</param-value>
</context-param>

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

</web-app>

创建包 com.pinyougou.sellergoods.service.impl

在 src/main/resources 下创建 spring/applicationContext-service.xml

<?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:dubbo="http://code.alibabatech.com/schema/dubbo"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
 http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc.xsd
 http://code.alibabatech.com/schema/dubbo 
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
 http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd">

    <dubbo:protocol name="dubbo" port="20881"></dubbo:protocol>
    <dubbo:application name="pinyougou-sellergoods-service"/> 
    <dubbo:registry address="zookeeper://192.168.25.129:2181"/>
    <dubbo:annotation package="com.pinyougou.sellergoods.service.impl" /> 

</beans>

运营商管理后台

创建 maven（war）模块 pinyougou-manager-web ， pom.xml 引入依赖。

<dependencies>
 
  <!-- Spring -->
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-beans</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-aspects</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jms</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context-support</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-test</artifactId>
  </dependency>
  
  <!-- dubbo 相关 -->
  <dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>dubbo</artifactId>
  </dependency>
  
  <dependency>
    <groupId>org.apache.zookeeper</groupId>
    <artifactId>zookeeper</artifactId>
  </dependency>
  
  <dependency>
    <groupId>com.github.sgroschupf</groupId>
    <artifactId>zkclient</artifactId>
  </dependency>
  
  <dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
  </dependency>
  
  <dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
  </dependency>
  
  <dependency>
    <groupId>javassist</groupId>
    <artifactId>javassist</artifactId>
  </dependency>

  <dependency>
     <groupId>commons-codec</groupId>
     <artifactId>commons-codec</artifactId> 
  </dependency>
  
  <dependency>
    <groupId>javax.servlet</groupId>
    <artifactId>servlet-api</artifactId>
    <scope>provided</scope>
  </dependency> 
  
   <dependency>
     <groupId>com.pinyougou</groupId>
     <artifactId>pinyougou-common</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </dependency>
   
   <dependency>
     <groupId>com.pinyougou</groupId>
     <artifactId>pinyougou-sellergoods-interface</artifactId>
     <version>0.0.1-SNAPSHOT</version>
   </dependency>
   
 </dependencies>
 
 <build>
  <plugins>
    <!-- 配置 Tomcat 插件 -->
    <plugin>
      <groupId>org.apache.tomcat.maven</groupId>
      <artifactId>tomcat7-maven-plugin</artifactId>
      <configuration>
        <path>/</path>
        <port>9101</port>
      </configuration>
    </plugin>
  </plugins>
 </build>

在 webapps 下创建 WEB-INF/web.xml ，加载 spring 容器。

<?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"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">

   <!-- 解决 post 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>
  
   <servlet>
     <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
     <!-- 指定加载的配置文件 ，通过参数 contextConfigLocation 加载-->
     <init-param>
       <param-name>contextConfigLocation</param-name>
       <param-value>classpath:spring/springmvc.xml</param-value>
     </init-param>
   </servlet>
 
  <servlet-mapping>
     <servlet-name>springmvc</servlet-name>
     <url-pattern>*.do</url-pattern>
   </servlet-mapping>
   
</web-app>

创建包 com.pinyougou.manager.controller

在 src/main/resources 下创建 spring/springmvc.xml

<?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:dubbo="http://code.alibabatech.com/schema/dubbo"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
 http://www.springframework.org/schema/mvc 
http://www.springframework.org/schema/mvc/spring-mvc.xsd
 http://code.alibabatech.com/schema/dubbo 
http://code.alibabatech.com/schema/dubbo/dubbo.xsd
 http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd">

<mvc:annotation-driven>
  <mvc:message-converters register-defaults="true">
     <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter"> 
       <property name="supportedMediaTypes" value="application/json"/>
       <property name="features">
         <array>
           <value>WriteMapNullValue</value>
           <value>WriteDateUseDateFormat</value>
         </array>
       </property>
     </bean>
   </mvc:message-converters> 
</mvc:annotation-driven>

<!-- 引用 dubbo 服务 -->
<dubbo:application name="pinyougou-manager-web" />
<dubbo:registry address="zookeeper://192.168.25.132:2181"/>
<dubbo:annotation package="com.pinyougou.manager.controller" /> 

</beans>

商家管理后台

构建 web 模块 pinyougou-shop-web 与运营商管理后台的构建方式类似。区别：

（1）定义 tomcat 的启动端口为 9102

（2）springmvc.xml

<!-- 引用 dubbo 服务 -->
<dubbo:application name="pinyougou-shop-web" />
<dubbo:registry address="zookeeper://192.168.25.132:2181"/>
<dubbo:annotation package="com.pinyougou.shop.controller" />

实体类与数据访问层模块

生成代码

利用反向工程 generatorSqlmapCustom 实现实体类与数据访问层代码的自动生成

拷贝代码

将 com.pinyougou.pojo 包拷贝到 pojo 工程

将 com.pinyougou.mapper 包和 resouce 下的 com.pinyougou.mapper 文件夹拷贝到 dao 工程

修改实体类代码

修改每个实体类，让其实现 Serializable 接口