1.创建maven项目,打包方式选择war(一般项目会分很多层,父工程会选择pom,非web工程会选择jar)
2.创建好后会报错,因为没有web.xml文件,这对web项目来说是必须的,后面的配置也会从这开始,如何快速创建web.xml文件在我之前的文章中有写,当然不怕麻烦也可以手动创建
3.接下来便是引入SSM及其相关的包,此时使用maven的好处就来了,可以保证每个项目引入的包的版本都是一样的,不会引起冲突,一般是在父工程中配置基础包,然后其他工程依赖父项目。
打开父工程的pom文件,复制下面的配置文件
<dependencies>
<dependency>
<groupId>javax.annotation</groupId>
<artifactId>jsr250-api</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1.3-b06</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.2</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<!-- Spring整合MyBatis -->
<!-- MyBatis中延迟加载需要使用Cglib -->
<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.8</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 控制日志输出:结合log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.7</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.37</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- ********其他****************************** -->
<!-- Ehcache二级缓存 -->
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>1.6.2</version>
</dependency>
<!-- 石英调度 - 开始 -->
<dependency>
<groupId>org.quartz-scheduler</groupId>
<artifactId>quartz</artifactId>
<version>1.8.5</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.0.0.RELEASE</version>
</dependency>
<dependency>
<groupId>commons-collections</groupId>
<artifactId>commons-collections</artifactId>
<version>3.1</version>
</dependency>
<!-- 石英调度 - 结束 -->
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.2</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>3.9</version>
</dependency>
<dependency>
<groupId>org.jfree</groupId>
<artifactId>jfreechart</artifactId>
<version>1.0.19</version>
</dependency>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.freemarker</groupId>
<artifactId>freemarker</artifactId>
<version>2.3.19</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-engine</artifactId>
<version>5.15.1</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-spring</artifactId>
<version>5.15.1</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-email</artifactId>
<version>1.3.1</version>
</dependency>
<dependency>
<groupId>org.activiti</groupId>
<artifactId>activiti-explorer</artifactId>
<version>5.15.1</version>
<exclusions>
<exclusion>
<artifactId>groovy-all</artifactId>
<groupId>org.codehaus.groovy</groupId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
在其他工程依赖父工程后,这些包也就可以在各个项目中使用了
4.打开需要搭建SSM框架的web项目的web.xml文件,首先配置spring框架
<!-- Spring -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:spring/spring-*.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
这相当于是一个入口,它依赖的是一个监听器,需要告诉它spring主配置文件的路径,让项目好找到,这里classpath代表的是该项目及其所依赖项目的src/main/resource路径,classpath:spring/spring-*.xml表示的就是在src/main/resource的spring文件夹下,所有前缀名为spring-,后缀名为.xml的文件都是该项目spring框架的配置文件
5.配置spring配置文件内容。
文件头:
<?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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.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-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
</beans>
(1)配置IOC功能
<context:component-scan base-package="cn.xc.**" >
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
根据扫描注解的方式更简单方便,所需要扫描的包在 base-package属性中设置,这里的配置中除去了对@Controller注解的扫描,因为@Controller与springMVC关联是更密切的,应该由它来扫描
(2)配置AOP功能
<!-- 声明式事务 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager" >
<property name="dataSource" ref="dataSource"/>
</bean>
<tx:advice id="transactionAdvice" transaction-manager="transactionManager" >
<tx:attributes>
<tx:method name="*" propagation="REQUIRED" isolation="DEFAULT" rollback-for="java.lang.Exception" />
<tx:method name="query*" read-only="true" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:advisor advice-ref="transactionAdvice" pointcut="execution(* cn.xc..*Service.*(..))"/>
</aop:config>
这里注意根据项目需求更改 aop:advisor标签的pointcut属性,上面配置的意思是在cn.xc下及其所有子包的所有XXService都使用事务功能,这可以在之后的测试中看生成的Service对象是否为代理对象来检验
(3)整合Mybatis
<!-- MyBatis -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean" >
<property name="configLocation" value="classpath:mybatis/config.xml" />
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" >
<list>
<value>classpath*:mybatis/mapper-*.xml</value>
</list>
</property>
</bean>
<!-- 扫描dao -->
<bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer" >
<property name="basePackage" value="cn.xc.rbac.**.dao" />
</bean>
<!-- 数据库连接池 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" >
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/rbac?rewriteBatchedStatements=true&useUnicode=true&characterEncoding=utf8"/>
<property name="user" value="root"/>
<property name="password" value="123"/>
</bean>
注意根据需求更改数据库连接池的相关配置信息
6.配置springMVC
打开web.xml文件
<!-- SpringMVC -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/springmvc-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
springMVC入口依赖的是一个Servlet,可以更改url-pattern来配置springMVC要拦截哪些请求,<load-on-startup>1</load-on-startup>
表示当项目启动时就创建该Servlet,以免第一个请求到达时再创建造成的等待时间过久
7.配置springMVC主配置文件
文件头:
<?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:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
</beans>
刚才在spring配置文件中忽略对@Controller注解的扫描,这时要加上来
<context:component-scan base-package="cn.xc.*" use-default-filters="false" >
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
在web.xml中配置的springMVC拦截路径为“/”,所以一些静态资源也会被拦截,如图片、css、js脚本等等,这里要放行
<!-- 放行静态资源 -->
<mvc:default-servlet-handler/>
<mvc:annotation-driven />
配置视图解析器:
<!-- 视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" >
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
表示的是在Controller中返回的页面路径都会自动加上"/WEB-INF/jsp/"前缀和“.jsp”后缀
web项目中数据传输会经常跟json打交道,配置响应json处理:
<mvc:annotation-driven />
还有另一种方式,效果是一样的:
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" >
<property name="messageConverters" >
<list>
<bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" >
<property name="supportedMediaTypes" >
<list>
<value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>
</list>
</property>
</bean>
配置文件上传解析器:
<!-- 文件上传解析器MultipartResolver -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" p:defaultEncoding="UTF-8" >
<property name="maxUploadSize" value="2097152"/>
<property name="resolveLazily" value="true"/>
</bean>
之前在spring中配置了mybaitis的配置文件的路径,其实暂时并没有什么需要配置的,可以放一个空文件在那里:
<?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>
<typeAliases>
</typeAliases>
</configuration>
到此SSM框架就基本搭建完成,剩下的就只有Mybatis的mapper文件,这个就根据需求自己创建吧,注意要按配置文件中的路径来,不过简单的sql语句也可以直接在dao接口中使用注解完成,如@Select(“select * from t_text”)