SSM框架的搭建与测试

关于框架的搭建无非就是 框架所依赖的jar包，然后就是关于各个框架的配置文件：

下面我们来看下不同层的依赖的jar包以及各个配置文件：

首先pojo这一层只需要依赖parent聚合工程

mapper层需要跟数据库打交道也就是利用mybatis的一些jar包，以及mapper需要依赖pojo才可以

<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>com.taotao</groupId>
    <artifactId>taotao-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>taotao-manager-mapper</artifactId>
  <dependencies>
  <dependency>
  <groupId>com.taotao</groupId>
    <artifactId>taotao-manager-pojo</artifactId>
    <version>0.0.1-SNAPSHOT</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>
  </dependencies>
  <!-- 如果不添加此节点mybatis的mapper.xml文件都会被漏掉。 -->
	<build>
		<resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>false</filtering>
            </resource>
        </resources>
	</build>

</project>

　　service就是业务逻辑层：主要是spring的一些jar包以及它依赖mapper层：

<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>com.taotao</groupId>
    <artifactId>taotao-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>taotao-manager-service</artifactId>

  <dependencies>
  <dependency>
  	 <groupId>com.taotao</groupId>
    <artifactId>taotao-manager-mapper</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </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>
  </dependencies>
</project>

　　controller层也就是web层主要就是跟前台界面相关，并且依赖service层：

<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>com.taotao</groupId>
    <artifactId>taotao-manager</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>taotao-manager-web</artifactId>
  <packaging>war</packaging>
  <dependencies>
  <dependency>
    <groupId>com.taotao</groupId>
    <artifactId>taotao-manager-service</artifactId>
    <version>0.0.1-SNAPSHOT</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>
  </dependencies>
</project>

　　框架搭建完成后就是各个配置文件了，那么这个配置文件要写到哪里呢，因为涉及到三个框架的整合，而且我们最终是利用页面的逻辑进行代码编写，所以在web层最好：

主要是这几个文件：

首先看下sqlMapConfig.xml，这是mybatis的配置文件：这里面不需要配置太多，可以配置一个mybatis自带分页插件即可

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
		PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
		"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
	<plugins>
		 <plugin interceptor="com.github.pagehelper.PageHelper">
        <property name="dialect" value="mysql"/>
        </plugin>
	</plugins>

</configuration>

　　然后是数据库的连接文件：db.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.146.128:3306/taotao?characterEncoding=utf-8
jdbc.username=root
jdbc.password=root

　　下面的就是整合的配置文件了很重要：

applicationContext-dao.xml：这个主要是数据库的连接配置，连接池，sqlsession的配置，加载配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	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
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- 数据库连接池 -->
	<!-- 加载配置文件 -->
	<context:property-placeholder location="classpath:resource/*.properties" />
	<!-- 数据库连接池 -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
		destroy-method="close">
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
		<property name="driverClassName" value="${jdbc.driver}" />
		<property name="maxActive" value="10" />
		<property name="minIdle" value="5" />
	</bean>
	<!-- spring管理sqlSessionFactory和mybatis的配置文件，以及mybatis的映射文件的配置 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource"></property>
		<property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
	</bean>
	<!-- mapper扫描包的配置 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.taotao.mapper" />
	   </bean>
</beans>

　　applicationContext-service.xml：这个主要是加载service的配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	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
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

		<context:component-scan base-package="com.taotao.service"/>

</beans>

　　applicationContext-trans.xml：主要是针对事务的配置，这个在保持数据的同步上面是很重要的；

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	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
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
	<!-- 配置事务管理器，用到datasource -->
	<bean id="transactionManager"
		class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- 数据源 -->
		<property name="dataSource" ref="dataSource" />
	</bean>
	<!--智者提供的建议，在这些方法上面添加，这里用到了spring的事务管理，所以需要利用 transactionManager-->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<!-- 传播行为 -->
			<tx:method name="save*" propagation="REQUIRED" />
			<tx:method name="insert*" propagation="REQUIRED" />
			<tx:method name="add*" propagation="REQUIRED" />
			<tx:method name="create*" propagation="REQUIRED" />
			<tx:method name="delete*" propagation="REQUIRED" />
			<tx:method name="update*" propagation="REQUIRED" />
			<tx:method name="find*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="select*" propagation="SUPPORTS" read-only="true" />
			<tx:method name="get*" propagation="SUPPORTS" read-only="true" />
		</tx:attributes>
	</tx:advice>
	<!--<aop:config> 面向切面的配置标签,定义切面，pointcut是切入点，advisor代表一个智者，这个智者给pointcut的切面上添加建议tx：advice；这个建议用到了事务管理者TransactionManager -->
	<aop:config>
		<aop:advisor advice-ref="txAdvice"
			pointcut="execution(* com.taotao.service.*.*(..))" />
	</aop:config>
</beans>

　　springmvc.xml：这是对前台页面的显示的一些配置，关于springMVC的一些设置

<?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: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.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!--配置扫描包扫描controller -->
	<context:component-scan base-package="com.taotao.controller" />
	<!-- 利用这个来进行配置注解映射器和注解适配器 -->
    <mvc:annotation-driven></mvc:annotation-driven>
   <!--   <mvc:default-servlet-handler/>
   -->
	<!-- 配置jsp试图解析器,配置试图解析器的前缀和后缀，程序中不用指定前缀和后缀 -->
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>
	<!-- 定义文件上传解析器 -->
	<bean id="multipartResolver"
		class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<!-- 设定默认编码 -->
		<property name="defaultEncoding" value="UTF-8"></property>
		<!-- 设定文件上传的最大值5MB，5*1024*1024 -->
		<property name="maxUploadSize" value="5242880"></property>
	</bean>

	<mvc:resources location="/WEB-INF/js/" mapping="/js/**"/>
	<mvc:resources location="/WEB-INF/css/" mapping="/css/**"/>

</beans>

　　配置基本设置完毕，下面就要看下配置是否成功呢：

这个步骤跟我们写代码一样，就是从dao、service、controller层写代码，然后逐层调用，如果能够从数据库读取数据成功，说明框架的建立是成功的。

比如说根据id查询商品，这个就是利用逆向工程生成的dao层，在service层获取dao层的数据，然后controller层调用dao层的返回给前台页面。