ssm整合

  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：

目录结构

使用Maven添加相关jar包。

  关于pom.xml的配置如下。

1. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

2. xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

3. <modelVersion>4.0.0</modelVersion>

4. <groupId>ssm_test</groupId>

5. <artifactId>ssm_test</artifactId>

6. <version>0.0.1-SNAPSHOT</version>

7. <packaging>war</packaging>

8. <name>ssm_test</name>

9. <description />

10. <properties>

11. <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

12. </properties>

13. <!--配置依赖包 -->

14. <dependencies>

15. <!-- https://mvnrepository.com/artifact/junit/junit -->

16. <dependency>

17. <groupId>junit</groupId>

18. <artifactId>junit</artifactId>

19. <version>4.10</version>

20. </dependency>

21. <!-- 1.日志，slf4j规范 日志实现：log4j,logback,commin-logging 使用：slf4j + logback -->

22. <dependency>

23. <groupId>org.slf4j</groupId>

24. <artifactId>slf4j-api</artifactId>

25. <version>1.7.12</version>

26. </dependency>

27. <dependency>

28. <groupId>ch.qos.logback</groupId>

29. <artifactId>logback-core</artifactId>

30. <version>1.1.1</version>

31. </dependency>

32. <!-- 实现slf4j接口并整合 -->

33. <dependency>

34. <groupId>ch.qos.logback</groupId>

35. <artifactId>logback-classic</artifactId>

36. <version>1.1.1</version>

37. </dependency>

38. <!-- 2.数据库相关依赖 -->

39. <dependency>

40. <groupId>mysql</groupId>

41. <artifactId>mysql-connector-java</artifactId>

42. <version>5.1.7</version>

43. </dependency>

44. <dependency>

45. <groupId>c3p0</groupId>

46. <artifactId>c3p0</artifactId>

47. <version>0.9.1.2</version>

48. </dependency>

49.  

50. <!-- 3.dao mybatis依赖 -->

51. <dependency>

52. <groupId>org.mybatis</groupId>

53. <artifactId>mybatis</artifactId>

54. <version>3.3.0</version>

55. </dependency>

56. <!-- mybatis自身实现的整合spring -->

57. <dependency>

58. <groupId>org.mybatis</groupId>

59. <artifactId>mybatis-spring</artifactId>

60. <version>1.2.3</version>

61. </dependency>

62.  

63. <!-- 4.servelet web 相关依赖 -->

64. <dependency>

65. <groupId>jstl</groupId>

66. <artifactId>jstl</artifactId>

67. <version>1.2</version>

68. </dependency>

69. <dependency>

70. <groupId>taglibs</groupId>

71. <artifactId>standard</artifactId>

72. <version>1.1.2</version>

73. </dependency>

74. <dependency>

75. <groupId>com.fasterxml.jackson.core</groupId>

76. <artifactId>jackson-databind</artifactId>

77. <version>2.5.4</version>

78. </dependency>

79. <dependency>

80. <groupId>javax.servlet</groupId>

81. <artifactId>javax.servlet-api</artifactId>

82. <version>3.1.0</version>

83. </dependency>

84.  

85. <!-- 5.spring的依赖 -->

86. <!-- 1)spring核心依赖 -->

87. <dependency>

88. <groupId>org.springframework</groupId>

89. <artifactId>spring-core</artifactId>

90. <version>4.1.3.RELEASE</version>

91. </dependency>

92. <dependency>

93. <groupId>org.springframework</groupId>

94. <artifactId>spring-beans</artifactId>

95. <version>4.1.3.RELEASE</version>

96. </dependency>

97. <dependency>

98. <groupId>org.springframework</groupId>

99. <artifactId>spring-context</artifactId>

100. <version>4.1.3.RELEASE</version>

101. </dependency>

102.  

103. <!-- spring aop 相关 -->

104. <dependency>

105. <groupId>org.springframework</groupId>

106. <artifactId>spring-aop</artifactId>

107. <version>4.1.3.RELEASE</version>

108. </dependency>

109.  

110. <dependency>

111. <groupId>org.aspectj</groupId>

112. <artifactId>aspectjrt</artifactId>

113. <version>1.6.11</version>

114. </dependency>

115. <dependency>

116. <groupId>org.aspectj</groupId>

117. <artifactId>aspectjweaver</artifactId>

118. <version>1.6.11</version>

119. </dependency>

120. <!-- 2)spring dao层依赖 -->

121. <dependency>

122. <groupId>org.springframework</groupId>

123. <artifactId>spring-jdbc</artifactId>

124. <version>4.1.3.RELEASE</version>

125. </dependency>

126. <dependency>

127. <groupId>org.springframework</groupId>

128. <artifactId>spring-tx</artifactId>

129. <version>4.1.3.RELEASE</version>

130. </dependency>

131. <!-- 3)spring web依赖 -->

132. <dependency>

133. <groupId>org.springframework</groupId>

134. <artifactId>spring-web</artifactId>

135. <version>4.1.3.RELEASE</version>

136. </dependency>

137. <dependency>

138. <groupId>org.springframework</groupId>

139. <artifactId>spring-webmvc</artifactId>

140. <version>4.1.3.RELEASE</version>

141. </dependency>

142. <!-- 4)spring test依赖 -->

143. <dependency>

144. <groupId>org.springframework</groupId>

145. <artifactId>spring-test</artifactId>

146. <version>4.1.3.RELEASE</version>

147. </dependency>

148. <!-- junit依赖 -->

149. <dependency>

150. <groupId>junit</groupId>

151. <artifactId>junit</artifactId>

152. <version>4.11</version>

153. </dependency>

154. </dependencies>

155. <build>

156. <sourceDirectory>src</sourceDirectory>

157. <resources>

158. <resource>

159. <directory>src</directory>

160. <excludes>

161. <exclude>**/*.java</exclude>

162. </excludes>

163. </resource>

164. </resources>

165. <plugins>

166. <plugin>

167. <artifactId>maven-compiler-plugin</artifactId>

168. <version>2.3.2</version>

169. <configuration>

170. <source>1.6</source>

171. <target>1.6</target>

172. </configuration>

173. </plugin>

174. <plugin>

175. <artifactId>maven-war-plugin</artifactId>

176. <version>2.2</version>

177. <configuration>

178. <warSourceDirectory>${basedir}/WebRoot</warSourceDirectory>

179. <version>3.0</version>

180. <failOnMissingWebXml>false</failOnMissingWebXml>

181. </configuration>

182. </plugin>

183. </plugins>

184. </build>

185. </project>

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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。

1. <?xml version="1.0" encoding="UTF-8"?>

2. <beans xmlns="http://www.springframework.org/schema/beans"

3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

4. xmlns:aop="http://www.springframework.org/schema/aop"

5. xmlns:tx="http://www.springframework.org/schema/tx"

6. xmlns:context="http://www.springframework.org/schema/context"

7. xmlns:mvc="http://www.springframework.org/schema/mvc"

8. xsi:schemaLocation="http://www.springframework.org/schema/beans

9. http://www.springframework.org/schema/beans/spring-beans.xsd

10. http://www.springframework.org/schema/aop

11. http://www.springframework.org/schema/aop/spring-aop.xsd

12. http://www.springframework.org/schema/tx

13. http://www.springframework.org/schema/tx/spring-tx.xsd

14. http://www.springframework.org/schema/context

15. http://www.springframework.org/schema/context/spring-context.xsd

16. http://www.springframework.org/schema/mvc

17. http://www.springframework.org/schema/mvc/spring-mvc.xsd">

18. <!-- 配置springMVC -->

19. <!-- 1.开启springMVC注解模式 -->

20. <!-- 简化配置：

21. 1)自动注册defaultAnnotationHandlerMapping,AnnotationMethodHandlARadpter

22. 2)提供一系列：数据绑定，数字和日期的format @NumberFoamat,@DataTiemFormat

23. xml,json默认读写支持-->

24. <mvc:annotation-driven></mvc:annotation-driven>

25. <!--2.servelt-mapping 映射路径:"/"

26. 静态资源默认servlet配置

27. 1.加入对静态资源的处理：js，gif，png

28. 2.允许用/做整体映射-->

29. <mvc:default-servlet-handler/>

30.  

31. <!-- 3. 配置jsp显示viewResolver-->

32. <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">

33. <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"></property>

34. <property name="prefix" value="/WEB-INF/jsp/"></property>

35. <property name="suffix" value=".jsp"></property>

36. </bean>

37.  

38. <!-- 4.扫描web相关的包 -->

39. <context:component-scan base-package="com.chenlong.study.web"></context:component-scan>

40.  

41. <!-- 获取properties -->

42. <bean id="propertyConfigurer" class="com.chenlong.study.utils.PropertyUtil">

43. <property name="locations" >

44. <list>

45. <value>classpath:*.properties</value>

46. </list>

47. </property>

48. </bean>

49. <aop:aspectj-autoproxy/>

50. </beans>

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  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：

1. public class PropertyUtil extends PropertyPlaceholderConfigurer {

2.  

3. private static Map<String,String> propertyMap;

4.  

5. @Override

6. protected void processProperties(ConfigurableListableBeanFactory beanFactoryToProcess, Properties props) throws BeansException {

7. super.processProperties(beanFactoryToProcess, props);

8. propertyMap = new HashMap<String, String>();

9. for (Object key : props.keySet()) {

10. String keyStr = key.toString();

11. String value = props.getProperty(keyStr);

12. propertyMap.put(keyStr, value);

13. }

14. }

15.  

16. //static method for accessing context properties

17. public static Object getProperty(String name) {

18. return propertyMap.get(name);

19. }

20. }

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spring-service.xml配置

  配置自动扫描，用于自动注入；并配置注解事务。

1. <?xml version="1.0" encoding="UTF-8"?>

2. <beans xmlns="http://www.springframework.org/schema/beans"

3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"

4. xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"

5. xsi:schemaLocation="http://www.springframework.org/schema/beans

6. http://www.springframework.org/schema/beans/spring-beans.xsd

7. http://www.springframework.org/schema/aop

8. http://www.springframework.org/schema/aop/spring-aop.xsd

9. http://www.springframework.org/schema/tx

10. http://www.springframework.org/schema/tx/spring-tx.xsd

11. http://www.springframework.org/schema/context

12. http://www.springframework.org/schema/context/spring-context.xsd">

13. <!-- 扫描service包下的所有注解类型 -->

14. <context:component-scan base-package="com.chenlong.study.service"></context:component-scan>

15. <!-- 配置事务管理器，dataSource在spring-dao.xml中配置 -->

16. <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

17. <property name="dataSource" ref="dataSource"></property>

18. </bean>

19. <!-- 配置基于注解的声明事务

20. 默认使用注解来管理事务行为-->

21. <tx:annotation-driven transaction-manager="transactionManager"/>

22. <aop:aspectj-autoproxy/>

23. </beans>

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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：

1. <?xml version="1.0" encoding="UTF-8" ?>

2. <!DOCTYPE configuration

3. PUBLIC "-//mybatis.org//DTD Config 3.0//EN"

4. "http://mybatis.org/dtd/mybatis-3-config.dtd">

5. <configuration>

6. <!-- 配置全局属性 -->

7. <settings>

8. <!-- 获取数据库自增主键值 -->

9. <setting name="useGeneratedKeys" value="true"></setting>

10. <!-- 使用列命替换别名 -->

11. <setting name="useColumnLabel" value="true"></setting>

12. <!-- 开启驼峰命名转换 -->

13. <setting name="mapUnderscoreToCamelCase" value="true"></setting>

14. </settings>

15. </configuration>

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  在jdbc.properties中配置数据库信息如下：

1. jdbc.username=root

2. jdbc.password=

3. jdbc.driverClass=com.mysql.jdbc.Driver

4. jdbc.jdbcUrls=jdbc:mysql://localhost:3306/test?useUnicode\=true&characterEncoding\=UTF-8

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  然后配置spring-dao.xml如下：

1. <?xml version="1.0" encoding="UTF-8"?>

2. <beans xmlns="http://www.springframework.org/schema/beans"

3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"

4. xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"

5. xsi:schemaLocation="http://www.springframework.org/schema/beans

6. http://www.springframework.org/schema/beans/spring-beans.xsd

7. http://www.springframework.org/schema/aop

8. http://www.springframework.org/schema/aop/spring-aop.xsd

9. http://www.springframework.org/schema/tx

10. http://www.springframework.org/schema/tx/spring-tx.xsd

11. http://www.springframework.org/schema/context

12. http://www.springframework.org/schema/context/spring-context.xsd">

13. <!-- 配置整合mybatis过程 -->

14. <!-- 1.配置数据库相关参数 -->

15. <!-- 引入属性文件 -->

16. <context:property-placeholder location="classpath:jdbc.properties" />

17. <!-- 2.配置数据库连接池 -->

18. <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">

19. <property name="driverClass" value="${jdbc.driverClass}"></property>

20. <property name="jdbcUrl" value="${jdbc.jdbcUrls}"></property>

21. <property name="user" value="${jdbc.username}"></property>

22. <property name="password" value="${jdbc.password}"></property>

23. <!-- 配置连接池私有属性 -->

24. <property name="maxPoolSize" value="30"></property>

25. <property name="minPoolSize" value="10"></property>

26. <!-- 关闭连接后不自动提交 -->

27. <property name="autoCommitOnClose" value="false"></property>

28. <!--获取连接超时时间 -->

29. <property name="checkoutTimeout" value="1000"></property>

30. <!-- 重试次数 -->

31. <property name="acquireRetryAttempts" value="2"></property>

32. </bean>

33. <!-- 3.配置sqlsessionfactory -->

34. <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

35. <!-- 注入数据库连接池 -->

36. <property name="dataSource" ref="dataSource"></property>

37. <!-- 配置mybatis全局文件 -->

38. <property name="configLocation" value="classpath:mybatis-config.xml"></property>

39. <!-- 扫描entity包使用别名 -->

40. <property name="typeAliasesPackage" value="com.chenlong.study.entity"></property>

41. <!-- 扫描mapper文件 -->

42. <property name="mapperLocations" value="classpath:com/chenlong/study/dao/*.xml"></property>

43. </bean>

44. <!-- 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 -->

45. <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

46. <!-- 注入sqlsessionfactory -->

47. <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>

48. <!-- 给出扫描Dao接口包 -->

49. <property name="basePackage" value="com.chenlong.study.dao"></property>

50. </bean>

51. <aop:aspectj-autoproxy/>

52. </beans>

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配置web.xml

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

1. <?xml version="1.0" encoding="UTF-8"?>

2. <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

3. xmlns="http://java.sun.com/xml/ns/javaee"

4. xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_1.xsd"

5. id="WebApp_ID" version="3.1">

6. <display-name>sh_student</display-name>

7. <!-- 配置springmvc dispatcherServlet -->

8. <servlet>

9. <servlet-name>dispacherservlet</servlet-name>

10. <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

11. <init-param>

12. <param-name>contextConfigLocation</param-name>

13. <param-value>classpath:spring-*.xml</param-value>

14. </init-param>

15. </servlet>

16. <servlet-mapping>

17. <servlet-name>dispacherservlet</servlet-name>

18. <url-pattern>/</url-pattern>

19. </servlet-mapping>

20. <context-param>

21. <param-name>contextConfigLocation</param-name>

22. <param-value>classpath:spring-*.xml </param-value>

23. </context-param>

24. <listener>

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

26. </listener>

27. <welcome-file-list>

28. <welcome-file>index.html</welcome-file>

29. <welcome-file>index.htm</welcome-file>

30. <welcome-file>index.jsp</welcome-file>

31. <welcome-file>default.html</welcome-file>

32. <welcome-file>default.htm</welcome-file>

33. <welcome-file>default.jsp</welcome-file>

34. </welcome-file-list>

35. </web-app>

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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。

1. <!-- 4)spring test依赖 -->

2. <dependency>

3. <groupId>org.springframework</groupId>

4. <artifactId>spring-test</artifactId>

5. <version>4.1.3.RELEASE</version>

6. </dependency>

7. <!-- https://mvnrepository.com/artifact/junit/junit -->

8. <dependency>

9. <groupId>junit</groupId>

10. <artifactId>junit</artifactId>

11. <version>4.11</version>

12. </dependency>

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  下面我给出一个测试示例:

1. //整合junit和spring，让junit在启动时候加载springIOC容器

2. @RunWith(SpringJUnit4ClassRunner.class)

3. //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

4. @ContextConfiguration({ "classpath:spring-dao.xml",

5. "classpath:spring-service.xml" })

6. public class SeckillServiceTest {

7. @Autowired

8. private SeckillService seckillService;

9.  

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

11.  

12. @Test

13. public void testGetSeckillList() {

14. List<Seckill> seckills = seckillService.getSeckillList();

15. logger.info("list={}", seckills);

16. }

17. }

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  关于SSM框架的整合和单元测试的集成就到此结束。

转载自https://blog.csdn.net/cl534854121/article/details/76121140