使用SSM开发电商网站之前期准备（一）

妖狐艹你老母 2022-04-05 14:45 179阅读 0赞

## 一、环境配置 ##

java版本：1.8

IDE工具：IDEA 2018.1.6

数据库：Mysql 5.7.21

服务器：Tomcat 9

版本管理工具：git

项目管理工具：maven

其他工具：Restlet（接口调试工具）、NavicatPerminum12(数据库可视化工具)

## 二、创建maven项目 ##

### 1、项目目录结构 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTE4MzU0Mw_size_16_color_FFFFFF_t_70][]

common：常量包

controller：视图层（backend：后端，portal：前端）

dao：模型层

service：服务层

pojo：实体类包

util：工具类包

vo：值对象

### 2、vo、po、dto、bo、entity区别 ###

Java Bean：一种可重用组件，即“一次编写，任何地方执行，任何地方重用”。满足三个条件a.类必须是具体的和公共的；b.具有无参构造器；c.提供一致性设计模式的公共方法将内部域暴露成员属性。

PO：持久对象（Persistent Object）是ORM（Object Relational Mapping）框架中Entity，PO的属性和数据表的字段形成一一对应关系。

VO：值对象（Value Object），通常用于业务层之间的数据传递，和PO一样也是仅仅包含数据而已，但应是抽象出的业务对象，可以和表对应，也可以不是。

BO：业务对象（Business Object），封装业务逻辑，通过调用DAO方法，结合PO或VO进行业务操作。

DTO：数据传输对象（Data Transfer Object），是一种设计模式之间传输数据的软件应用系统。数据传输目标往往是数据访问对象从数据库中检索数据。数据传输对象与数据交互对象或数据访问对象之间的差异是一个以不具有任何行为除了存储和检索的数据（访问和存取器）。简单点说就是接口之间传递的数据封装。

DAO：数据访问对象（Data Access Object）是sun的一个标准j2ee设计模式，这个模式中有个接口就是DAO，负责持久层的操作。

POJO：简单无规则java对象

纯的传统意义的java对象，最基本的Java Bean只有属性加上属性的get和set方法。

可以转化为PO、DTO、VO；比如POJO在传输过程中就是DTO。

Entity：实体，和PO的功能类似，和数据表一一对应，一个实体一张表。

## 三、pom.xml配置 ##

<?xml version="1.0" encoding="UTF-8"?>
    
    <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>com</groupId>
      <artifactId>my_ssm</artifactId>
      <version>1.0-SNAPSHOT</version>
      <packaging>war</packaging>
    
      <name>my_ssm Maven Webapp</name>
      
      <url>http://maven.apache.org</url>
    
    
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
        <org.springframework.version>5.1.0.RELEASE</org.springframework.version>
        <org.mybatis.version>3.4.6</org.mybatis.version>
        <org.mybatis.spring.version>1.3.0</org.mybatis.spring.version>
    
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
      </properties>
    
      <dependencies>
    
        <dependency>
          <groupId>org.apache.tomcat</groupId>
          <artifactId>tomcat-servlet-api</artifactId>
          <version>9.0.11</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>${org.springframework.version}</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-oxm</artifactId>
          <version>${org.springframework.version}</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jdbc</artifactId>
          <version>${org.springframework.version}</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-tx</artifactId>
          <version>${org.springframework.version}</version>
        </dependency>
    
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-test</artifactId>
          <version>${org.springframework.version}</version>
        </dependency>
    
    
        <dependency>
          <groupId>org.aspectj</groupId>
          <artifactId>aspectjweaver</artifactId>
          <version>1.7.3</version>
        </dependency>
    
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>
          <version>${org.mybatis.spring.version}</version>
        </dependency>
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis</artifactId>
          <version>${org.mybatis.version}</version>
        </dependency>
    
        <dependency>
          <groupId>org.aspectj</groupId>
          <artifactId>aspectjrt</artifactId>
          <version>1.6.11</version>
        </dependency>
    
        <dependency>
          <groupId>org.codehaus.jackson</groupId>
          <artifactId>jackson-mapper-asl</artifactId>
          <version>1.9.12</version>
        </dependency>
    
        <dependency>
          <groupId>commons-dbcp</groupId>
          <artifactId>commons-dbcp</artifactId>
          <version>1.4</version>
          
        </dependency>
    
    
        <dependency>
          <groupId>ch.qos.logback</groupId>
          <artifactId>logback-classic</artifactId>
          <version>1.1.2</version>
          <scope>compile</scope>
        </dependency>
        <dependency>
          <groupId>ch.qos.logback</groupId>
          <artifactId>logback-core</artifactId>
          <version>1.1.2</version>
          <scope>compile</scope>
        </dependency>
    
        <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>5.1.37</version>
        </dependency>
    
        <dependency>
          <groupId>com.google.guava</groupId>
          <artifactId>guava</artifactId>
          <version>20.0</version>
        </dependency>
    
    
        <dependency>
          <groupId>org.apache.commons</groupId>
          <artifactId>commons-lang3</artifactId>
          <version>3.5</version>
        </dependency>
    
    
        <dependency>
          <groupId>commons-collections</groupId>
          <artifactId>commons-collections</artifactId>
          <version>3.2.1</version>
        </dependency>
    
    
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
          
        </dependency>
    
        <dependency>
          <groupId>joda-time</groupId>
          <artifactId>joda-time</artifactId>
          <version>2.3</version>
        </dependency>
    
    
        
        <dependency>
          <groupId>org.hashids</groupId>
          <artifactId>hashids</artifactId>
          <version>1.0.1</version>
        </dependency>
    
    
        
        <dependency>
          <groupId>commons-net</groupId>
          <artifactId>commons-net</artifactId>
          <version>3.1</version>
        </dependency>
    
        
    
        
        <dependency>
          <groupId>commons-fileupload</groupId>
          <artifactId>commons-fileupload</artifactId>
          <version>1.2.2</version>
        </dependency>
    
        <dependency>
          <groupId>commons-io</groupId>
          <artifactId>commons-io</artifactId>
          <version>2.0.1</version>
        </dependency>
    
    
    
    
        
    
        <dependency>
          <groupId>com.github.pagehelper</groupId>
          <artifactId>pagehelper</artifactId>
          <version>4.1.0</version>
        </dependency>
    
        <dependency>
          <groupId>com.github.miemiedev</groupId>
          <artifactId>mybatis-paginator</artifactId>
          <version>1.2.17</version>
        </dependency>
    
        <dependency>
          <groupId>com.github.jsqlparser</groupId>
          <artifactId>jsqlparser</artifactId>
          <version>0.9.4</version>
        </dependency>
    
    
        
        <dependency>
          <groupId>commons-codec</groupId>
          <artifactId>commons-codec</artifactId>
          <version>1.10</version>
        </dependency>
        <dependency>
          <groupId>commons-configuration</groupId>
          <artifactId>commons-configuration</artifactId>
          <version>1.10</version>
        </dependency>
        <dependency>
          <groupId>commons-lang</groupId>
          <artifactId>commons-lang</artifactId>
          <version>2.6</version>
        </dependency>
        <dependency>
          <groupId>commons-logging</groupId>
          <artifactId>commons-logging</artifactId>
          <version>1.1.1</version>
        </dependency>
        <dependency>
          <groupId>com.google.zxing</groupId>
          <artifactId>core</artifactId>
          <version>2.1</version>
        </dependency>
        <dependency>
          <groupId>com.google.code.gson</groupId>
          <artifactId>gson</artifactId>
          <version>2.3.1</version>
        </dependency>
        <dependency>
          <groupId>org.hamcrest</groupId>
          <artifactId>hamcrest-core</artifactId>
          <version>1.3</version>
        </dependency>
    
        <dependency>
          <groupId>redis.clients</groupId>
          <artifactId>jedis</artifactId>
          <version>2.9.0</version>
        </dependency>
    
      </dependencies>
    
      <build>
        <finalName>my_ssm</finalName>
        <pluginManagement>
          <plugins>
            <plugin>
              <artifactId>maven-clean-plugin</artifactId>
              <version>3.0.0</version>
            </plugin>
            
            <plugin>
              <artifactId>maven-resources-plugin</artifactId>
              <version>3.0.2</version>
            </plugin>
            <plugin>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-compiler-plugin</artifactId>
              <version>3.7.0</version>
              <configuration>
                <source>1.8</source>
                <target>1.8</target>
                <encoding>UTF-8</encoding>
                <compilerArguments>
                  <extdirs>${project.basedir}/src/main/webapp/WEB-INF/lib</extdirs>
                </compilerArguments>
              </configuration>
            </plugin>
            <plugin>
              <artifactId>maven-surefire-plugin</artifactId>
              <version>2.20.1</version>
            </plugin>
            <plugin>
              <artifactId>maven-war-plugin</artifactId>
              <version>3.2.0</version>
            </plugin>
            <plugin>
              <artifactId>maven-install-plugin</artifactId>
              <version>2.5.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-deploy-plugin</artifactId>
              <version>2.8.2</version>
            </plugin>
          </plugins>
        </pluginManagement>
        <plugins>
          <plugin>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-maven-plugin</artifactId>
            <version>1.3.2</version>
            <configuration>
              <verbose>true</verbose>
              <overwrite>true</overwrite>
            </configuration>
          </plugin>
        </plugins>
      </build>
    </project>

## 三、SSM框架核心配置文件 ##

1、sql文件

2、使用mybatis插件（mybatis-generator:generate）构建逆向工程

3、applicationContext.xml文件配置

4、applicationContext-datasource.xml配置

<?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"
           xsi:schemaLocation="
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    
        <context:component-scan base-package="com.mmall" annotation-config="true"/>
    
        <bean id="propertyConfigurer"
              class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
            <property name="order" value="2"/>
            <property name="ignoreUnresolvablePlaceholders" value="true"/>
            <property name="locations">
                <list>
                    <value>classpath:datasource.properties</value>
                </list>
            </property>
            <property name="fileEncoding" value="utf-8"/>
        </bean>
    
    
        <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
            <property name="driverClassName" value="${db.driverClassName}"/>
            <property name="url" value="${db.url}"/>
            <property name="username" value="${db.username}"/>
            <property name="password" value="${db.password}"/>
            
            <property name="initialSize" value="${db.initialSize}"/>
            
            <property name="maxActive" value="${db.maxActive}"/>
            
            <property name="maxIdle" value="${db.maxIdle}"/>
            
            <property name="minIdle" value="${db.minIdle}"/>
            
            <property name="maxWait" value="${db.maxWait}"/>
            
             
            <property name="defaultAutoCommit" value="${db.defaultAutoCommit}"/>
            
             
            
             
            
            <property name="minEvictableIdleTimeMillis" value="${db.minEvictableIdleTimeMillis}"/>
    
            
            <property name="timeBetweenEvictionRunsMillis" value="40000"/>
            
            <property name="testWhileIdle" value="true"/>
            
            <property name="validationQuery" value="SELECT 1 FROM dual"/>
        </bean>
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="dataSource"/>
            
            <property name="mapperLocations" value="classpath*:mappers/*Mapper.xml"></property>
    
            
            <property name="plugins">
                <array>
                    <bean class="com.github.pagehelper.PageHelper">
                        <property name="properties">
                            <value>
                                dialect=mysql
                            </value>
                        </property>
                    </bean>
                </array>
            </property>
    
        </bean>
        
        <bean name="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.mmall.dao"/>
        </bean>
    
        
        <tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="dataSource"/>
            <property name="rollbackOnCommitFailure" value="true"/>
        </bean>
    
    
    </beans>

5、dataSource.properties文件配置

db.driverLocation=D:/java_extra_jar/mysql-connector-java-5.1.37-bin.jar
    db.driverClassName=com.mysql.jdbc.Driver
    db.url=jdbc:mysql://localhost:3306/mydatabase?characterEncoding=utf-8
    db.username=root
    db.password=tiger
    
    
    db.initialSize = 20
    db.maxActive = 50
    db.maxIdle = 20
    db.minIdle = 10
    db.maxWait = 10
    db.defaultAutoCommit = true
    db.minEvictableIdleTimeMillis = 3600000

6、generatorConfig.xml配置

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE generatorConfiguration
            PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
            "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
    
    <generatorConfiguration>
        
        <properties resource="datasource.properties"></properties>
        
        <classPathEntry location="${db.driverLocation}" />
    
        <context id="default" targetRuntime="MyBatis3">
    
            
            <commentGenerator>
                <property name="suppressDate" value="true"/>
                <property name="suppressAllComments" value="true"/>
            </commentGenerator>
    
            
            <jdbcConnection
                    driverClass="${db.driverClassName}"
                    connectionURL="${db.url}"
                    userId="${db.username}"
                    password="${db.password}">
            </jdbcConnection>
    
    
            
            <javaTypeResolver>
                <property name="forceBigDecimals" value="false"/>
            </javaTypeResolver>
    
    
            
            
            <javaModelGenerator targetPackage="com.mmall.pojo" targetProject="./src/main/java">
                
                <property name="enableSubPackages" value="false"/>
                
                <property name="constructorBased" value="true"/>
                
                <property name="trimStrings" value="true"/>
                
                <property name="immutable" value="false"/>
            </javaModelGenerator>
    
            
            
            <sqlMapGenerator targetPackage="mappers" targetProject="./src/main/resources">
                <property name="enableSubPackages" value="false"/>
            </sqlMapGenerator>
    
            
    
            
            
            <javaClientGenerator type="XMLMAPPER" targetPackage="com.mmall.dao" targetProject="./src/main/java">
                
                <property name="enableSubPackages" value="false" />
            </javaClientGenerator>
    
    
            <table tableName="mmall_shipping" domainObjectName="Shipping" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_cart" domainObjectName="Cart" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_cart_item" domainObjectName="CartItem" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_category" domainObjectName="Category" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_order" domainObjectName="Order" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_order_item" domainObjectName="OrderItem" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_pay_info" domainObjectName="PayInfo" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
            <table tableName="mmall_product" domainObjectName="Product" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">
                <columnOverride column="detail" jdbcType="VARCHAR" />
                <columnOverride column="sub_images" jdbcType="VARCHAR" />
            </table>
            <table tableName="mmall_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table>
    
    
            
        </context>
    </generatorConfiguration>

7、logback.xml配置

<?xml version="1.0" encoding="UTF-8"?>
    <configuration scan="true" scanPeriod="60 seconds" debug="false">
        <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
            <encoding>UTF-8</encoding>
            <encoder>
                <pattern>[%d{HH:mm:ss.SSS}][%p][%c{40}][%t] %m%n</pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>DEBUG</level>
            </filter>
        </appender>
    
        <appender name="mmall" class="ch.qos.logback.core.rolling.RollingFileAppender">
            
            <File>D:/computer language/eclipse/apache-tomcat-9.0.1/logs/mmall.log</File>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>D:/computer language/eclipse/apache-tomcat-9.0.1/logs/mmall.log.%d{yyyy-MM-dd}.zip</fileNamePattern>
                <append>true</append>
                <maxHistory>10</maxHistory>
            </rollingPolicy>
            <encoder>
                <pattern>[%d{HH:mm:ss.SSS}][%p][%c{40}][%t] %m%n</pattern>
            </encoder>
        </appender>
    
    
        <appender name="error" class="ch.qos.logback.core.rolling.RollingFileAppender">
            
            <File>D:/computer language/eclipse/apache-tomcat-9.0.1/logs/error.log</File>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>D:/computer language/eclipse/apache-tomcat-9.0.1/logs/error.log.%d{yyyy-MM-dd}.zip</fileNamePattern>
                
                <append>true</append>
                <maxHistory>10</maxHistory>
            </rollingPolicy>
            <encoder>
                <pattern>[%d{HH:mm:ss.SSS}][%p][%c{40}][%t] %m%n</pattern>
            </encoder>
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>ERROR</level>
                <onMatch>ACCEPT</onMatch>
                <onMismatch>DENY</onMismatch>
            </filter>
        </appender>
    
        <logger name="com.mmall" additivity="false" level="INFO" >
            <appender-ref ref="mmall" />
            <appender-ref ref="console"/>
        </logger>
    
    
    
        
    
        <logger name="com.mmall.dao" level="DEBUG"/>
    
        
            
        
    
        
            
        
        
            
        
    
        
            
        
    
    
        <root level="DEBUG">
            <appender-ref ref="console"/>
            <appender-ref ref="error"/>
        </root>
    
    </configuration>

8、mmall.properties

ftp.server.ip=你的FTP服务器ip地址
    ftp.user=mmallftp
    ftp.pass=ftppassword
    ftp.server.http.prefix=http://img.happymmall.com/
    
    alipay.callback.url=http://www.happymmall.com/order/alipay_callback.do
    
    password.salt = geelysdafaqj23ou89ZXcj@#$@#$#@KJdjklj;D../dSF.,

9、dispatcher-servlet.xml配置

10、web.xml配置

<?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"
             id="WebApp_ID" version="2.5">
    
        <display-name>Archetype Created Web Application</display-name>
    
        <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>
    
    
        <listener>
            <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
        </listener>
    
        <listener>
            <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
        <context-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
                classpath:applicationContext.xml
            </param-value>
        </context-param>
    
        <servlet>
            <servlet-name>dispatcher</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <load-on-startup>1</load-on-startup>
        </servlet>
    
    
    
        <servlet-mapping>
            <servlet-name>dispatcher</servlet-name>
            <url-pattern>*.do</url-pattern>
        </servlet-mapping>
    
    </web-app>

到这里为止我们SSM框架的核心配置文件就弄完了，接下来我们一起来分析一下项目的接口吧。

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