e3商城_day01

一.电商模式

 二.功能列表

三.系统架构演变

　　》传统架构：

 　　1000并发：

 注意：这里的不同服务器一般都是在不同的主机上的，不同服务器的工程都是一模一样的；配置多台服务器的方式叫做集群

　　10000并发：

 　　　　1.如果是1w并发的话，刚才配置多个服务器的方式就不太管用了

　　　　2.要实现1w并发，得把架构给改了：将一个项目根据业务拆分成不同的模块（系统），每个节点（系统）分配不同数量的服务器来支持并发，比如：前台系统所需的服务器可能较多（也可以采用缓存的机制来减少服务器的压力），后退系统相对较少

　　　　3.像刚才的session共享问题，就可以将session完全交付给登录系统来统一管理，就不需要通过session复制的方式了

　　　　4.之前不同的系统在同一台服务器上，实现服务（service）间的调用就直接调了，但是现在不同的系统分配到不同的服务器，想实现系统间的通信可以采用WebService或Socket的方式来调用服务

　　　　5.需要按照功能点进行系统划分，拆分独立的功能（系统），单独为某一节点（系统）分配一定数量的服务器，服务器之间互相通信来完成整个项目业务的逻辑，叫做分布式。

　　》面向SOA的架构（面向服务的架构）

 　　　　1.像刚才系统拆分的方法有一个缺点：当不同的系统是有相同的业务逻辑时（比如：订单系统和前台系统都需要查询商品的信息），会导致相同服务没有实现共享，而是有各自有自己的服务。

　　　　2.为了服务共享的问题，SAO架构出现了；它把表现层和服务层拆解出来，不同的表现层（系统）处理好自己的页面请求，无需关心业务逻辑，服务层的不同服务实现不同的业务逻辑，提供WebService接口或jar包的方式给外面调用。

　　　　3.一般服务层的不同服务是分配不同数量的服务器来支持的，服务层的服务并不单单是service，还有dao,pojo等

四.项目的整体架构

五.使用tomcat插件运行聚合过程

　　》创建好parent父过程，子过程是common,manager，manager下包括多个子模块，分别是：pojo,dao,service,interface,web

　　》为每个pom.xml文件添加内容等，这里不详细说，最后面会有所有pom.xml的展示

　　》我们使用tomcat插件来运行项目，一般项目可用来运行的有两类：聚合工程（它的子模块有web工程）和web工程，我们建议优先运行聚合工程，原因是：聚合工程是可直接运行，不需要把工程下的子模块发布到本地库，若运行聚合工程下的web工程，web肯定会依赖同级子模块的，需要将同级子模块给安装到本地库

PS：tomcat插件的配置在聚合工程或web工程的pom.xml中，父工程和jar是不能运行的

六.Mybatis逆向工程

　　》创建数据库，执行sql脚本创建表

　　》通过逆向工程代码生成接口，配置文件以及pojo

　　》逆向工程只执行一次，如果执行了多次请重新删除原来生成的文件，再重新执行

七.ssm整合

 　　》像上面的sqlMapConfig，applictionContext-*,springmvc等xml文件，我们原本是不同的配置文件放到对应的子模块中，比如sqlMapConfig.xml放在dao模块，但是除了web模块外，其他都会达成jar，到时候进行访问jar里面的配置文件就不是那么方便了，所以在这里我们统一把配置文件放到web模块中

　　》各个配置文件的配置内容：

　　　　1.sqlMapConfig：为pojo包取别名

　　　　2.applicationContext-dao：引用db,properties，配置连接池，配置session工厂，配置mapper扫描器

　　　　3.applicationContext-service：扫描service包下的组件,component-san

　　　　4.applicationContext-transaction：配置事务管理器，配置通知，配置切面（织入）

　　　　5.springmvc：配置三大组件，分别是controller扫描器，mvc驱动（映射器和适配器），视图解析器

　　　　6.web.xml：配置前端控制器，spring加载的监听器contextLoaderListenner,post乱码的过滤器

八.各层的pom.xml

>parent:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>cn.e3mall</groupId>
    <artifactId>e3-parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>
    <!-- 集中定义依赖版本号 -->
    <properties>
        <junit.version>4.12</junit.version>
        <spring.version>4.2.4.RELEASE</spring.version>
        <mybatis.version>3.2.8</mybatis.version>
        <mybatis.spring.version>1.2.2</mybatis.spring.version>
        <mybatis.paginator.version>1.2.15</mybatis.paginator.version>
        <mysql.version>5.1.32</mysql.version>
        <slf4j.version>1.6.4</slf4j.version>
        <jackson.version>2.4.2</jackson.version>
        <druid.version>1.0.9</druid.version>
        <httpclient.version>4.3.5</httpclient.version>
        <jstl.version>1.2</jstl.version>
        <servlet-api.version>2.5</servlet-api.version>
        <jsp-api.version>2.0</jsp-api.version>
        <joda-time.version>2.5</joda-time.version>
        <commons-lang3.version>3.3.2</commons-lang3.version>
        <commons-io.version>1.3.2</commons-io.version>
        <commons-net.version>3.3</commons-net.version>
        <pagehelper.version>3.4.2</pagehelper.version>
        <jsqlparser.version>0.9.1</jsqlparser.version>
        <commons-fileupload.version>1.3.1</commons-fileupload.version>
        <jedis.version>2.7.2</jedis.version>
        <solrj.version>4.10.3</solrj.version>
        <dubbo.version>2.5.3</dubbo.version>
        <zookeeper.version>3.4.7</zookeeper.version>
        <zkclient.version>0.1</zkclient.version>
        <activemq.version>5.11.2</activemq.version>
        <freemarker.version>2.3.23</freemarker.version>
        <quartz.version>2.2.2</quartz.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            <!-- 时间操作组件 -->
            <dependency>
                <groupId>joda-time</groupId>
                <artifactId>joda-time</artifactId>
                <version>${joda-time.version}</version>
            </dependency>
            <!-- Apache工具组件 -->
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
                <version>${commons-lang3.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-io</artifactId>
                <version>${commons-io.version}</version>
            </dependency>
            <dependency>
                <groupId>commons-net</groupId>
                <artifactId>commons-net</artifactId>
                <version>${commons-net.version}</version>
            </dependency>
            <!-- Jackson Json处理工具包 -->
            <dependency>
                <groupId>com.fasterxml.jackson.core</groupId>
                <artifactId>jackson-databind</artifactId>
                <version>${jackson.version}</version>
            </dependency>
            <!-- httpclient -->
            <dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpclient</artifactId>
                <version>${httpclient.version}</version>
            </dependency>
            <!-- quartz任务调度框架 -->
            <dependency>
                <groupId>org.quartz-scheduler</groupId>
                <artifactId>quartz</artifactId>
                <version>${quartz.version}</version>
            </dependency>
            <!-- 单元测试 -->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
                <scope>test</scope>
            </dependency>
            <!-- 日志处理 -->
            <dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-log4j12</artifactId>
                <version>${slf4j.version}</version>
            </dependency>
            <!-- Mybatis -->
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis</artifactId>
                <version>${mybatis.version}</version>
            </dependency>
            <dependency>
                <groupId>org.mybatis</groupId>
                <artifactId>mybatis-spring</artifactId>
                <version>${mybatis.spring.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.miemiedev</groupId>
                <artifactId>mybatis-paginator</artifactId>
                <version>${mybatis.paginator.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper</artifactId>
                <version>${pagehelper.version}</version>
            </dependency>
            <!-- MySql -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!-- 连接池 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <!-- Spring -->
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-beans</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-webmvc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jdbc</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-aspects</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-jms</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-context-support</artifactId>
                <version>${spring.version}</version>
            </dependency>
            <!-- JSP相关 -->
            <dependency>
                <groupId>jstl</groupId>
                <artifactId>jstl</artifactId>
                <version>${jstl.version}</version>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>servlet-api</artifactId>
                <version>${servlet-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jsp-api</artifactId>
                <version>${jsp-api.version}</version>
                <scope>provided</scope>
            </dependency>
            <!-- 文件上传组件 -->
            <dependency>
                <groupId>commons-fileupload</groupId>
                <artifactId>commons-fileupload</artifactId>
                <version>${commons-fileupload.version}</version>
            </dependency>
            <!-- Redis客户端 -->
            <dependency>
                <groupId>redis.clients</groupId>
                <artifactId>jedis</artifactId>
                <version>${jedis.version}</version>
            </dependency>
            <!-- solr客户端 -->
            <dependency>
                <groupId>org.apache.solr</groupId>
                <artifactId>solr-solrj</artifactId>
                <version>${solrj.version}</version>
            </dependency>
            <!-- dubbo相关 -->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>dubbo</artifactId>
                <version>${dubbo.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.zookeeper</groupId>
                <artifactId>zookeeper</artifactId>
                <version>${zookeeper.version}</version>
            </dependency>
            <dependency>
                <groupId>com.github.sgroschupf</groupId>
                <artifactId>zkclient</artifactId>
                <version>${zkclient.version}</version>
            </dependency>
            <dependency>
                <groupId>org.apache.activemq</groupId>
                <artifactId>activemq-all</artifactId>
                <version>${activemq.version}</version>
            </dependency>
            <dependency>
                <groupId>org.freemarker</groupId>
                <artifactId>freemarker</artifactId>
                <version>${freemarker.version}</version>
            </dependency>

        </dependencies>
    </dependencyManagement>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <!-- 资源文件拷贝插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-resources-plugin</artifactId>
                <version>2.7</version>
                <configuration>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <!-- java编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.2</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
        <pluginManagement>
            <plugins>
                <!-- 配置Tomcat插件 -->
                <plugin>
                    <groupId>org.apache.tomcat.maven</groupId>
                    <artifactId>tomcat7-maven-plugin</artifactId>
                    <version>2.2</version>
                </plugin>
            </plugins>
        </pluginManagement>
    </build>
</project>

>common

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>cn.e3mall</groupId>
    <artifactId>e3-parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>e3-common</artifactId>
  
  <!-- 依赖的jar包 -->
    <dependencies>
        <!-- 时间操作组件 -->
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
        </dependency>
        <!-- Apache工具组件 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-io</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-net</groupId>
            <artifactId>commons-net</artifactId>
        </dependency>
        <!-- Jackson Json处理工具包 -->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <!-- httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>
        <!-- quartz任务调度框架 -->
        <dependency>
            <groupId>org.quartz-scheduler</groupId>
            <artifactId>quartz</artifactId>
        </dependency>
        <!-- 单元测试 -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <scope>test</scope>
        </dependency>
        <!-- 日志处理 -->
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
        </dependency>

    </dependencies>
</project>

>manager

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>cn.e3mall</groupId>
    <artifactId>e3-parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>e3-manager</artifactId>
  <packaging>pom</packaging>
  
    <!-- 依赖工具类 -->
  <dependencies>
      <dependency>
          <groupId>cn.e3mall</groupId>
        <artifactId>e3-common</artifactId>
        <version>0.0.1-SNAPSHOT</version>
      </dependency>
  
  </dependencies>
  <modules>
      <module>e3-manager-pojo</module>
      <module>e3-manager-dao</module>
      <module>e3-manager-interface</module>
      <module>e3-manager-service</module>
      <module>e3-manager-web</module>
  </modules>
  
  <build>
      <!-- 配置Tomcat插件 -->
      <plugins>
        <plugin>
            <groupId>org.apache.tomcat.maven</groupId>
            <artifactId>tomcat7-maven-plugin</artifactId>
            <configuration>
                <path>/</path>
                <port>8080</port>
            </configuration>
        </plugin>
    </plugins>
  </build>
</project>

>dao

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>e3-manager-dao</artifactId>
  
      <dependencies>
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-pojo</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <!-- 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>
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper</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>
        <!-- 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>
    </dependencies>
</project>

>pojo

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>e3-manager-pojo</artifactId>
</project>

>service

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>e3-manager-service</artifactId>
  
  <!-- 依赖dao -->
  <!-- 依赖pojo：传递依赖 -->
  <!-- 依赖service接口 -->
  <!-- 依赖spring:传递依赖 -->
  
      <dependencies>
          <!-- 依赖dao -->
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-dao</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <!-- 依赖service接口 -->
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-interface</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        
    </dependencies>    
</project>

>interface

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>e3-manager-interface</artifactId>
  
  <!-- 依赖pojo -->
    <dependencies>
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-pojo</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
    </dependencies>
  <!-- service接口不需要依赖dao -->
</project>

>web

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>cn.e3mall</groupId>
    <artifactId>e3-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>e3-manager-web</artifactId>
  <packaging>war</packaging>
  
  <!-- 依赖service -->
  <!-- 依赖spring:传递依赖 -->
  <!-- 依赖jsp相关的jar -->
  <!-- 依赖pojo:传递依赖  -->
  
  <dependencies>
        <dependency>
            <groupId>cn.e3mall</groupId>
            <artifactId>e3-manager-service</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
        <!-- JSP相关 -->
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jsp-api</artifactId>
            <scope>provided</scope>
        </dependency>
    </dependencies>
</project>