SSM整合:
首先确保工程没有问题:写个jsp页面,通过网站测试一下能否成功,如果测试通过,则按下方步骤搭建即可:
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按实际情况建几个包,后期会新建类用于测试框架是否搭建成功
- cn.java.controller.front
- cn.java.entity
- cn.java.mapper
- cn.java.service.impl
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新建外部资源包,用于存放配置文件(xml文件)
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springmvc.xml配置
3.1. 配置包扫描<!-- 扫描包 --> <context:component-scan base-package="cn.java.controller.*,cn.java.service.impl"/>
3.2. 开启MVC注解
<!-- 开启MVC注解 --> <mvc:annotation-driven/>
3.3. 配置视图解析器
<!-- 视图解析器 --> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 配置前缀 --> <property name="prefix" value="/pages/"></property> <!-- 配置后缀 --> <property name="suffix" value=""></property> </bean>
3.4. 配置文件上传
<!-- 文件上传 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 编码 --> <property name="defaultEncoding" value="utf-8"></property> <!-- 文件上传大小:1M --> <property name="maxUploadSize" value="1048576"></property> </bean>
3.5. 配置数据校验
<!-- 数据校验 --> <mvc:annotation-driven validator="validator"/> <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"> <property name="providerClass" value="org.hibernate.validator.HibernateValidator"></property> </bean>
3.6. 最终完整的springmvc.xml配置参考
<?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:context="http://www.springframework.org/schema/context" xmlns:task="http://www.springframework.org/schema/task" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.2.xsd"> <!-- 扫描包 --> <context:component-scan base-package="cn.java.controller.*,cn.java.service.impl"/> <!-- 开启MVC注解 --> <mvc:annotation-driven/> <!-- 视图解析器 --> <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 配置前缀 --> <property name="prefix" value="/pages/"></property> <!-- 配置后缀 --> <property name="suffix" value=""></property> </bean> <!-- 文件上传 --> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 编码 --> <property name="defaultEncoding" value="utf-8"></property> <!-- 文件上传大小:1M --> <property name="maxUploadSize" value="1048576"></property> </bean> <!-- 数据校验 --> <mvc:annotation-driven validator="validator"/> <bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"> <property name="providerClass" value="org.hibernate.validator.HibernateValidator"></property> </bean> </beans>
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mybatis.xml配置:此处只是一个mybatis.xml配置模板,实际情况该配置文件可以不写,因为在整合的过程中所有内容都已经写入applicationContext.xml中,
<?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> <!-- 配置数据库连接环境:driver、url、username、password --> <environments default="mysql"> <!-- 开始配置mysql --> <environment id="mysql"> <!--配置事务 --> <transactionManager type="JDBC"></transactionManager> <!-- 配置数据源 --> <dataSource type="POOLED"> <property name="driver" value="com.mysql.jdbc.Driver"/> <property name="url" value="jdbc:mysql:///数据库名(别忘记)"/> <property name="username" value="root"/> <property name="password" value="root"/> </dataSource> </environment> </environments> <!-- 关联局部配置文件 --> <mappers> <mapper resource="cn/java/dao/impl/UserDaoImpl.xml(局部配置文件路径,别忘了)"/> </mappers> </configuration>
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applicationContext.xml配置:
5.1. 配置数据源<!-- 配置数据源:BasicDataSource --> <bean id="basicDataSource" class="org.apache.commons.dbcp.BasicDataSource"> <!-- 驱动 --> <property name="driverClassName" value="com.mysql.jdbc.Driver"></property> <!-- url --> <property name="url" value="jdbc:mysql:///SSM"></property> <!-- username --> <property name="username" value="root"></property> <!-- password --> <property name="password" value="root"></property> </bean>
5.2. 扫描mybatis的局部配置文件
<!-- 扫描mybatis框架中局部xml文件 --> <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 指定数据源 --> <property name="dataSource" ref="basicDataSource"></property> <!-- 指定xml存放位置 --> <property name="mapperLocations" value="classpath*:cn/java/mapper/*.xml"></property> </bean>
5.3. 扫描dao层类文件
<!-- 扫描dao层类文件 --> <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="cn.java.mapper"></property> </bean>
5.4. applicationContext.xml完整配置内容
<?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:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd"> <!-- 配置数据源:BasicDataSource --> <bean id="basicDataSource" class="org.apache.commons.dbcp.BasicDataSource"> <!-- 驱动 --> <property name="driverClassName" value="com.mysql.jdbc.Driver"></property> <!-- url --> <property name="url" value="jdbc:mysql:///SSM"></property> <!-- username --> <property name="username" value="root"></property> <!-- password --> <property name="password" value="root"></property> </bean> <!-- 扫描mybatis框架中局部xml文件 --> <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> <!-- 指定数据源 --> <property name="dataSource" ref="basicDataSource"></property> <!-- 指定xml存放位置 --> <property name="mapperLocations" value="classpath*:cn/java/mapper/*.xml"></property> </bean> <!-- 扫描dao层类文件 --> <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="cn.java.mapper"></property> </bean> </beans>
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web.xml配置
6.1. 配置中文乱码过滤器<!-- 配置中文乱码过滤器 --> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>
6.2. 读取applicationContext.xml文件
<!-- 读取applicationContext.xml --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener>
6.3. 配置springmvc核心类
<!-- 配置springMVC框架核心类:DispathcherServlet,并且读取springMVC.xml --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping>
6.4. web.xml完整配置
<?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_0.xsd" id="WebApp_ID" version="3.0"> <display-name>SSM</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- 配置中文乱码过滤器 --> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 读取applicationContext.xml --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 配置springMVC框架核心类:DispathcherServlet,并且读取springMVC.xml --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
至此,SSM框架已完全搭建完成,往下是对上面配置的一些优化和改进,对上面的代码没有影响
使用properties配置文件配置applicationContext.xml中的数据源
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书写jdbc.properties文件:
#mysql driver=com.mysql.jdbc.Driver url=jdbc:mysql:///SSM username=root password=root
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配置读取.properties文件的工具类
<!-- 配置读取.properties文件的工具类 --> <bean id="propertyPlaceholderConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:jdbc.properties"></property> </bean>
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配置数据源:将之前的数据源配置变为下方:
<!-- 配置数据源:BasicDataSource --> <bean id="basicDataSource" class="org.apache.commons.dbcp.BasicDataSource"> <!-- 驱动 --> <property name="driverClassName" value="${driver}"></property> <!-- url --> <property name="url" value="${url}"></property> <!-- username --> <property name="username" value="${username}"></property> <!-- password --> <property name="password" value="${password}"></property> </bean>
配置p6spy
- 书写properties文件
#p6spy driver=com.p6spy.engine.spy.P6SpyDriver url=jdbc:p6spy:mysql://localhost:3306/SSM username=root password=root
- 导入spy.properties文件