SSM框架整合--框架搭建

SSM框架整合思路

不同于SSH整合,由于springMVC本身就是spring家族的一部分,所以SSM整合其实只要整合spring和mybatis即可。我们需要引入spring和mybatis整合的相关jar包,使用spring容器管理dataSource,sqlSessionFactory。而springMVC只需要配置视图解析器等等相关内容即可,而需要整合其他内容,比如shiro等等,都可以通过在spring中添加相关配置,进行相关整合。

SSM整合实战

在IDEA中创建maven工程

打开IDEA,创建工程时候选择maven,按照模板来创建,模板选择maven-archetype-webapp,填入坐标信息,就可以创建一个简单的web工程,然后补全项目结构,一个标准的maven工程项目结构是这样的

配置pom.xml

工程模板搭建好之后,就要开始正式的编码了,首先要修改pom.xml,这个文件是maven工程的核心,一个基本的SSM工程需要的配置如下

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<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.fx</groupId>
<artifactId>test</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>test Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>4.1.4.RELEASE</spring.version>
<mybatis.version>3.2.8</mybatis.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 添加spring-tx包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 添加spring-jdbc包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- 为了方便进行单元测试,添加spring-test包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<!--添加spring-web包 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<!--添加aspectjweaver包 -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.5</version>
</dependency>
<!-- 添加mybatis的核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!-- 添加mybatis与Spring整合的核心包 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 添加servlet3.0核心包 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.2-b01</version>
</dependency>
<!-- jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- 添加mysql驱动包 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
<!-- 添加druid连接池包 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.0.12</version>
</dependency>
<!-- 格式化对象 -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.1.41</version>
</dependency>
</dependencies>
<build>
<finalName>test</finalName>
<resources>
<!-- 编译时编译mybatis映射文件 -->
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
<plugins>
<!-- 指定jdk版本 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

开启自动导入,系统就会为maven引入相关依赖。

配置spring

由于我们采用了spring整合mybatis的方式,所以mybatis的配置文件可以省略,而spring的配置我们采用注解方式,在resources目录下创建spring配置文件命名为applicationContext.xml(此处命名任意),applicationContext.xml内容如下

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<?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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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">

<!--开启切面编程自动代理-->
<aop:aspectj-autoproxy proxy-target-class="true"/>

<!--扫描注解生成bean-->
<context:annotation-config/>

<!--包扫描-->
<context:component-scan base-package="com.fx"/>

<!-- 加载jdbc配置文件 -->
<context:property-placeholder location="classpath:jdbc.properties"/>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="mapperLocations" value="classpath:com/fx/**/**.xml"/>
</bean>

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.fx.*.dao"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>

<!--声明事务管理 采用注解方式-->
<tx:annotation-driven transaction-manager="transactionManager"/>

<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>

<!--数据库设置-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close" init-method="init">
<property name="driverClassName" value="${driverClassName}"/>
<property name="url" value="${jdbc_url}"/>
<property name="username" value="${jdbc_username}"/>
<property name="password" value="${jdbc_password}"/>
<!-- 初始化连接大小 -->
<property name="initialSize" value="0"/>
<!-- 连接池最大使用连接数量 -->
<property name="maxActive" value="20"/>
<!-- 连接池最小空闲 -->
<property name="minIdle" value="0"/>
<!-- 获取连接最大等待时间 -->
<property name="maxWait" value="60000"/>
<property name="validationQuery" value="${validationQuery}"/>
<property name="testOnBorrow" value="false"/>
<property name="testOnReturn" value="false"/>
<property name="testWhileIdle" value="true"/>
<!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
<property name="timeBetweenEvictionRunsMillis" value="60000"/>
<!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
<property name="minEvictableIdleTimeMillis" value="25200000"/>
<!-- 打开removeAbandoned功能 -->
<property name="removeAbandoned" value="true"/>
<!-- 1800秒,也就是30分钟 -->
<property name="removeAbandonedTimeout" value="1800"/>
<!-- 关闭abanded连接时输出错误日志 -->
<property name="logAbandoned" value="true"/>
<!-- 监控数据库 -->
<!-- <property name="filters" value="stat" /> -->
<property name="filters" value="mergeStat"/>
</bean>
</beans>

数据库连接池使用druid,在resources目录下创建jdbc的配置文件,我们就完成了spring和mybatis的配置。

配置springMVC

在resources目录下再创建一个spring-mvc.xml(命名任意),在里面配置表现层的相关内容

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<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:contex="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/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">

<!-- 注解驱动 -->
<mvc:annotation-driven/>

<!-- 处理静态资源 -->
<mvc:default-servlet-handler/>

<!-- 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>

<!-- 包扫描 -->
<contex:component-scan base-package="com.fx.*.controller"/>
</beans>

至此,表现层就配置完成了。

配置web.xml

maven默认生成的web.xml默认是2.3版本的,需要改成3.1版本的,之后在里面添加启动配置信息

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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">

<!--加载spring容器配置-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>

<!--spring监听器-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<!--springMVC前端控制器-->
<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-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<!--编码过滤器-->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<async-supported>true</async-supported>
<init-param>
<param-name>encoding</param-name>
<param-value>utf-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

<welcome-file-list>
<welcome-file>login.jsp</welcome-file>
</welcome-file-list>

</web-app>

配置了以上内容,项目就可以启动了。


由于spring采用注解方式配置,所以在项目中使用@Service,@Controller注解标记的bean都可交给spring管理,可以使用@Autowired注解进行注入,在Controller中通过@RequestMapping注解来映射url路径。以上就是搭建一个简单的SSM工程的全部内容。

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