SSM整合&单元测试集成备忘

  阅读原文请访问我的博客brightloong's blog
  SSM框架，既是Sping + Spring MVC + Mybatis，本篇博文主要是作为本人的备忘，记录如何整合SSM框架，以及如何集成单元测试，关于每一个配置的作用大都加上了注释，至于如何搭建项目这里不在赘述（我使用的是web项目），可以自己查找相关资料。我使用的Spring版本是4.1.3.RELEASE，Mybatis版本是3.3.0，使用Maven进行构建。

注意：首先申明如下的配置是根据我的目录结构来配置的，我的目录结构如下所示：


使用Maven添加相关jar包。

关于pom.xml的配置如下。

<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>ssm_test</groupId>
	<artifactId>ssm_test</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<packaging>war</packaging>
	<name>ssm_test</name>
	<description />
	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>
	<!--配置依赖包 -->
	<dependencies>
		<!-- https://mvnrepository.com/artifact/junit/junit -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.10</version>
		</dependency>
		<!-- 1.日志，slf4j规范 日志实现：log4j,logback,commin-logging 使用：slf4j + logback -->
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-api</artifactId>
			<version>1.7.12</version>
		</dependency>
		<dependency>
			<groupId>ch.qos.logback</groupId>
			<artifactId>logback-core</artifactId>
			<version>1.1.1</version>
		</dependency>
		<!-- 实现slf4j接口并整合 -->
		<dependency>
			<groupId>ch.qos.logback</groupId>
			<artifactId>logback-classic</artifactId>
			<version>1.1.1</version>
		</dependency>
		<!-- 2.数据库相关依赖 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.7</version>
		</dependency>
		<dependency>
			<groupId>c3p0</groupId>
			<artifactId>c3p0</artifactId>
			<version>0.9.1.2</version>
		</dependency>

		<!-- 3.dao mybatis依赖 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.3.0</version>
		</dependency>
		<!-- mybatis自身实现的整合spring -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.2.3</version>
		</dependency>

		<!-- 4.servelet web 相关依赖 -->
		<dependency>
			<groupId>jstl</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<dependency>
			<groupId>taglibs</groupId>
			<artifactId>standard</artifactId>
			<version>1.1.2</version>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>2.5.4</version>
		</dependency>
		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.1.0</version>
		</dependency>

		<!-- 5.spring的依赖 -->
		<!-- 1)spring核心依赖 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		
		<!-- spring aop 相关 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>

		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjrt</artifactId>
			<version>1.6.11</version>
		</dependency>
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjweaver</artifactId>
			<version>1.6.11</version>
		</dependency>
		<!-- 2)spring dao层依赖 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		<!-- 3)spring web依赖 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		<!-- 4)spring test依赖 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		<!-- junit依赖 -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.11</version>
		</dependency>
	</dependencies>
	<build>
		<sourceDirectory>src</sourceDirectory>
		<resources>
			<resource>
				<directory>src</directory>
				<excludes>
					<exclude>**/*.java</exclude>
				</excludes>
			</resource>
		</resources>
		<plugins>
			<plugin>
				<artifactId>maven-compiler-plugin</artifactId>
				<version>2.3.2</version>
				<configuration>
					<source>1.6</source>
					<target>1.6</target>
				</configuration>
			</plugin>
			<plugin>
				<artifactId>maven-war-plugin</artifactId>
				<version>2.2</version>
				<configuration>
					<warSourceDirectory>${basedir}/WebRoot</warSourceDirectory>
					<version>3.0</version>
					<failOnMissingWebXml>false</failOnMissingWebXml>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

SSM整合配置

为了使配置层次清楚，结构清晰，我把配置按照web、service和dao分别分为spring-web.xml、spring-service.xml和spirng-dao.xml，下面依次介绍这几个配置文件。

spring-web.xm配置

该配置中主要是一些资源映射的相关配置。

<?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: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/aop 
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
	<!-- 配置springMVC -->
	<!-- 1.开启springMVC注解模式 -->
	<!-- 简化配置：
		1)自动注册defaultAnnotationHandlerMapping,AnnotationMethodHandlARadpter 
		2)提供一系列：数据绑定，数字和日期的format @NumberFoamat,@DataTiemFormat
			xml,json默认读写支持-->
	<mvc:annotation-driven></mvc:annotation-driven>
	<!--2.servelt-mapping 映射路径:"/" 
		静态资源默认servlet配置 
		1.加入对静态资源的处理：js，gif，png
		2.允许用/做整体映射-->
	<mvc:default-servlet-handler/>
	
	<!-- 3. 配置jsp显示viewResolver-->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>
		<property name="prefix" value="/WEB-INF/jsp/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
	
	<!-- 4.扫描web相关的包 -->
	<context:component-scan base-package="com.chenlong.study.web"></context:component-scan>
	
	<!-- 获取properties -->
  	<bean id="propertyConfigurer" class="com.chenlong.study.utils.PropertyUtil">
        <property name="locations" >
            <list>
            	<value>classpath:*.properties</value>
            </list>
        </property>
    </bean>
    <aop:aspectj-autoproxy/>
</beans>

在上述配置中最后关于获取properties的配置，我创建了一个PropertyUtil类用来获取properties文件，并读取里面的属性。PropertyUtil.java如下：

public class PropertyUtil extends PropertyPlaceholderConfigurer {

    private static Map<String,String> propertyMap;

    @Override
    protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess, Properties props) throws BeansException {
        super.processProperties(beanFactoryToProcess, props);
        propertyMap = new HashMap<String, String>();
        for (Object key : props.keySet()) {
            String keyStr = key.toString();
            String value = props.getProperty(keyStr);
            propertyMap.put(keyStr, value);
        }
    }

    //static method for accessing context properties
    public static Object getProperty(String name) {
        return propertyMap.get(name);
    }
}

spring-service.xml配置

配置自动扫描，用于自动注入；并配置注解事务。

<?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:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd">
	<!-- 扫描service包下的所有注解类型 -->
	<context:component-scan base-package="com.chenlong.study.service"></context:component-scan>
	<!-- 配置事务管理器，dataSource在spring-dao.xml中配置 -->
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<!-- 配置基于注解的声明事务 
		默认使用注解来管理事务行为-->
	<tx:annotation-driven transaction-manager="transactionManager"/>
	 <aop:aspectj-autoproxy/>
</beans>

配置spring-dao.xml

在配置sprign-dao.xml之前，先配置mybatis的全局文件mybatis-config.xml如下：

<?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>
	<!-- 配置全局属性 -->
	<settings>
		<!-- 获取数据库自增主键值 -->
		<setting name="useGeneratedKeys" value="true"></setting>
		<!-- 使用列命替换别名 -->
		<setting name="useColumnLabel" value="true"></setting>
		<!-- 开启驼峰命名转换 -->
		<setting name="mapUnderscoreToCamelCase" value="true"></setting>
	</settings>
</configuration>

在jdbc.properties中配置数据库信息如下：

jdbc.username=root
jdbc.password=
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.jdbcUrls=jdbc:mysql://localhost:3306/test?useUnicode\=true&characterEncoding\=UTF-8

然后配置spring-dao.xml如下：

<?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:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop 
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx 
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context.xsd">
	<!-- 配置整合mybatis过程 -->
	<!-- 1.配置数据库相关参数 -->
	<!-- 引入属性文件 -->
	<context:property-placeholder location="classpath:jdbc.properties" />
	<!-- 2.配置数据库连接池 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="driverClass" value="${jdbc.driverClass}"></property>
		<property name="jdbcUrl" value="${jdbc.jdbcUrls}"></property>
		<property name="user" value="${jdbc.username}"></property>
		<property name="password" value="${jdbc.password}"></property>
		<!-- 配置连接池私有属性 -->
		<property name="maxPoolSize" value="30"></property>
		<property name="minPoolSize" value="10"></property>
		<!-- 关闭连接后不自动提交 -->
		<property name="autoCommitOnClose" value="false"></property>
		<!--获取连接超时时间 -->
		<property name="checkoutTimeout" value="1000"></property>
		<!-- 重试次数 -->
		<property name="acquireRetryAttempts" value="2"></property>
	</bean>
	<!-- 3.配置sqlsessionfactory -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 注入数据库连接池 -->
		<property name="dataSource" ref="dataSource"></property>
		<!-- 配置mybatis全局文件 -->
		<property name="configLocation" value="classpath:mybatis-config.xml"></property>
		<!-- 扫描entity包使用别名 -->
		<property name="typeAliasesPackage" value="com.chenlong.study.entity"></property>
		<!-- 扫描mapper文件 -->
		<property name="mapperLocations" value="classpath:com/chenlong/study/dao/*.xml"></property>
	</bean>
	<!-- 4.配置扫描dao接口包，动态实现dao接口，自动注入到spring容器中 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- 注入sqlsessionfactory -->
		<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
		<!-- 给出扫描Dao接口包 -->
		<property name="basePackage" value="com.chenlong.study.dao"></property>
	</bean>
	 <aop:aspectj-autoproxy/>
</beans>

配置web.xml

在完成上述配置后，配置web.xml，配置springmvc和spring的servlet

<?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_3_1.xsd"
	id="WebApp_ID" version="3.1">
	<display-name>sh_student</display-name>
  <!-- 配置springmvc dispatcherServlet -->
  <servlet>
  	<servlet-name>dispacherservlet</servlet-name>
  	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  	<init-param>
  		<param-name>contextConfigLocation</param-name>
  		<param-value>classpath:spring-*.xml</param-value>
  	</init-param>
  </servlet>
  <servlet-mapping>
  	<servlet-name>dispacherservlet</servlet-name>
  	<url-pattern>/</url-pattern>
  </servlet-mapping>
  <context-param>
  <param-name>contextConfigLocation</param-name>  
  <param-value>classpath:spring-*.xml </param-value>
 </context-param>
  <listener>
  	<listener-class> org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

单元测试集成

在pom.xm文件中我们曾加入如下的jar包用来做单元测试。

<!-- 4)spring test依赖 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-test</artifactId>
			<version>4.1.3.RELEASE</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/junit/junit -->
		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.11</version>
		</dependency>

下面我给出一个测试示例:

//整合junit和spring，让junit在启动时候加载springIOC容器
@RunWith(SpringJUnit4ClassRunner.class)
//告诉junit spring的配置文件,需要用到的配置文件，如果是dao的话可以不用spring-service.xml
@ContextConfiguration({ "classpath:spring-dao.xml",
        "classpath:spring-service.xml" })
public class SeckillServiceTest {
    @Autowired
    private SeckillService seckillService;

    private Logger logger = LoggerFactory.getLogger(this.getClass());

    @Test
    public void testGetSeckillList() {
        List<Seckill> seckills = seckillService.getSeckillList();
        logger.info("list={}", seckills);
    }
}

关于SSM框架的整合和单元测试的集成就到此结束。