ssm框架整合
1.搭建环境
第一步:
创建一个普通的maven项目
第二步:
导入相关依赖
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.49</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.5</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>2.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.2</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>2.0.2</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.1.15.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>5.1.15.RELEASE</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
</dependency>
</dependencies>
第三步:
处理静态资源过滤问题
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<excludes>
<exclude>**/*.properties</exclude>
<exclude>**/*.xml</exclude>
</excludes>
<filtering>false</filtering>
</resource>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
<filtering>false</filtering>
</resource>
</resources>
</build>
2.mybatis层
第一步:
数据库连接(创建db.properties)
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/数据库名?useSSL=true&useUnicode=true&characterEncoding=utf-8
jdbc.username=数据库用户名
jdbc.password=数据库密码
第二步:
mybatis配置文件(用于设置别名、注册mapper接口)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"//mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<typeAliases>
<package name="com.kuang.pojo"/>
</typeAliases>
<mappers>
<mapper resource="mapper/BookMapper.xml"/>
</mappers>
</configuration>
注册mapper的三种方式:
1.class—–> 要求接口名与映射文件名一致并且两者放在同一目录下,否则报错!
2.resource——>不需要名称一致,不同目录下也可以,可以指定一个相对于类路径的Mapper.xml文件
3.package——->基于映射文件的接口与映射文件必须在同一个包下,批量注册
第三步:编写实体类,mapper接口,service接口,service实现类(调用Dao层并写上set方法便于Spring管理)
3.Spring层
第一步:
编写spring-dao.xml(关联数据库配置文件、连接池、SqlSessionFactory、配置mapper接口扫描包)
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="//www.springframework.org/schema/beans"
xmlns:xsi="//www.w3.org/2001/XMLSchema-instance"
xmlns:context="//www.springframework.org/schema/context"
xsi:schemaLocation="//www.springframework.org/schema/beans
//www.springframework.org/schema/beans/spring-beans.xsd
//www.springframework.org/schema/context
//www.springframework.org/schema/context/spring-context.xsd">
<!--关联数据库配置文件,import只能导入spring配置文件-->
<context:property-placeholder location="classpath:database.properties"/>
<!--连接池-->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxPoolSize" value="30"/>
<property name="minPoolSize" value="10"/>
<property name="autoCommitOnClose" value="false"/>
<property name="checkoutTimeout" value="10000"/>
<property name="acquireRetryAttempts" value="2"/>
</bean>
<!--SqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="configLocation" value="classpath:mybatis-config.xml"/>
</bean>
<!--配置mapper接口扫描包,自动配置sqlSession-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<property name="basePackage" value="要扫描的mapper包"/>
</bean>
</beans>
第二步:
编写Spring-service.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="//www.springframework.org/schema/beans"
xmlns:xsi="//www.w3.org/2001/XMLSchema-instance"
xmlns:context="//www.springframework.org/schema/context"
xsi:schemaLocation="//www.springframework.org/schema/beans
//www.springframework.org/schema/beans/spring-beans.xsd
//www.springframework.org/schema/context
//www.springframework.org/schema/context/spring-context.xsd">
<!--扫描service下的包-->
<context:component-scan base-package="要扫描的service包"/>
<!--将业务注入到Spring中,注解用@Atuowired可以实现-->
<bean id="BookServiceImpl" class="com.kuang.service.BookServiceImpl">
<property name="mapper" ref="bookMapper"/>
</bean>
<!--声明式事务-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
</beans>
3.SpringMVC层
第一步:
右击项目选择Add Framework Support 勾选web
第二步:
配置web.xml(DispatchServlet以及乱码过滤问题)
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="//xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="//www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="//xmlns.jcp.org/xml/ns/javaee //xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
version="4.0">
<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:applicationContext.xml</param-value>
</init-param>
/*与tomcat一同启动*/
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<filter>
<filter-name>encodingFilter</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>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<session-config>
<session-timeout>15</session-timeout>
</session-config>
</web-app>
注意:这里引用的Config是applicationContext.xml这个总的配置,若单单引入spring-mvc.xml则会报找不到Bean的错误!!
第三步:
编写spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="//www.springframework.org/schema/beans"
xmlns:xsi="//www.w3.org/2001/XMLSchema-instance"
xmlns:context="//www.springframework.org/schema/context"
xmlns:mvc="//www.springframework.org/schema/mvc"
xsi:schemaLocation="//www.springframework.org/schema/beans
//www.springframework.org/schema/beans/spring-beans.xsd
//www.springframework.org/schema/context
//www.springframework.org/schema/context/spring-context.xsd
//www.springframework.org/schema/mvc
//www.springframework.org/schema/mvc/spring-mvc.xsd">
<mvc:annotation-driven/> /*注解驱动,取代映射器以及适配器*/
<mvc:default-servlet-handler/> /*静态资源过滤*/
<context:component-scan base-package="要扫描的controller的包"/> /*扫描Controller包*/
/*视图解析器*/
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
第四步:
在applicationContext.xml中引入三层架构的配置文件
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="//www.springframework.org/schema/beans"
xmlns:xsi="//www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="//www.springframework.org/schema/beans
//www.springframework.org/schema/beans/spring-beans.xsd">
<import resource="classpath:spring-dao.xml"/>
<import resource="classpath:spring-service.xml"/>
<import resource="classpath:spring-mvc.xml"/>
</beans>
以上就是ssm框架整合,剩下就只需要我们去编写业务层以及mapper接口,编写controller和前端页面