整体结构

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结构图

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Spring 整合SpringMVC

整合SpringMVC我们需要将Spring的配置文件加载到服务器中（配置Spring ioc容器）。
我们可以使用Spring的ContextLoaderListener 监听器去监听ServletContext的生命周期。

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

在启动服务器时监听ServletContext的创建，在这时载入Spring的配置文件，这样就整合成功了。但是有个细节。ContextLoaderListener 默认加载只加载WEB-INF目录下的的applicationContext.xml文件,所以我们Spring的配置文件的名称要设置为applicationContext.xml，但是在一般情况下我们的配置文件都会在resouces下面也就是服务器中WEB-INF/classes下面。所以我们需要配置文件路径：

 <context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param>

web.xml

<?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_4_0.xsd"version="4.0">
<!-- 配置spring的ContextLoaderListener监听器 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!--    设置配置文件路径--><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param><!--    配置前端控制器--><servlet><servlet-name>dispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!--        加载springmvc配置文件 --><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:springmvc.xml</param-value></init-param><!--        启动服务器就创建该servlet--><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>dispatcherServlet</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!--    解决中文乱码的过滤器--><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>
</web-app>

SpringMvc.xml

<?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"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsdhttp://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsd"><!--    注解扫描的包 --><context:component-scan base-package="com"><!--        只扫描的注解--><context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/></context:component-scan><!--    过滤的静态资源--><mvc:resources mapping="/js/" location="/js/**"></mvc:resources><mvc:resources mapping="/css/" location="/css/**"></mvc:resources><mvc:resources mapping="/imgs/" location="/imgs/**"></mvc:resources><!--配置视图解析器对象--><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver"><property name="prefix" value="/jsp/"></property><property name="suffix" value=".jsp"></property></bean><!--    开启注解驱动 --><mvc:annotation-driven></mvc:annotation-driven>
</beans>

Spring整合Mybatis

我们将Mybatis的配置集成的Spring的配置文件里。这种方式是最方便的！

applicationContext.xml

<?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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsd"><!--开启注解的扫描，只希望扫描service和dao，controller不需要--><context:component-scan base-package="com"><!--        配置哪些注解不扫描--><context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/></context:component-scan><!--    spring 整合Mybatis框架--><!--    引入外部jdbc配置文件--><context:property-placeholder location="classpath:db.properties"></context:property-placeholder><!--    配置数据库连接池--><bean class="org.apache.ibatis.datasource.pooled.PooledDataSource" id="dataSource"><property name="driver" value="${jdbc.driver}"/><property name="url" value="${jdbc.url}"/><property name="username" value="${jdbc.username}"/><property name="password" value="${jdbc.password}"/></bean><!--   配置 SqlSessionFactory 工厂--><bean class="org.mybatis.spring.SqlSessionFactoryBean" id="sqlSessionFactory"><!-- 指定数据源 --><property name="dataSource" ref="dataSource"></property><!-- 自动扫描mapping.xml文件，**表示迭代查找 ,,也可在mybatis-config.xml中单独指定xml文件 --><property name="mapperLocations" value="classpath:mybatis/**/*.xml"></property></bean><!--配置mybatis扫描所在的包--><!-- 自动扫描com/dao下的所有dao接口，并实现这些接口，可直接在程序中使用dao接口，不用再获取sqlsession对象 --><bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!--        basePackage 属性是映射器接口文件的包路径。你可以使用分号或逗号 作为分隔符设置多于一个的包路径--><property name="basePackage" value="com.dao"></property></bean><!--Spring 中基于xml的声明式事务控制配置步骤1、配置事务管理器  DataSourceTransactionManager2、配置事务的通知此时我们需要导入事务的约束 tx名称空间和约束，同时也需要aop的使用tx:advice 标签配置事务通知属性：id：给事务通知起一个唯一标志transaction-manager：给事务通知提供一个事务管理器引用3、配置AOP中的通用切入点表达式4、建立切入点表达式与事务通知的对应关系5、配置事务的属性是在事务的通知tx:advice 标签内部配 <tx:attributes>配置事务的属性isolation:用于指定事务的隔离级别，默认值是DEFAULT，表示使用数据库的默认隔离级别。propagation：用于指定事务的传播行为，默认值是REQUIRED，表示一定有事务，增删改的选择。查询方法可以使用SUPPORTSread-only：用于指定事务是否只读。只有查询方法才设置为true，默认值为false，表示读写。timeout：用于指定事务的超时时间，默认值为-1，表示永不超时。如果设置了指定值，以秒为单位。rollback-for：用于指定一个异常，当产生该异常时，事务回滚，如果产生其他异常，事务不回滚。没有默认值。表示任何异常都回滚。no-rollback-for：用于指定一个异常，当产生该异常时，事务不回滚，产生其他异常时事务回滚。没有默认值。表示任何异常都回滚。--><!--    配置事务管理器--><bean class="org.springframework.jdbc.datasource.DataSourceTransactionManager" id="transactionManager"><property name="dataSource" ref="dataSource"></property></bean><!--    配置事务的通知--><tx:advice transaction-manager="transactionManager" id="txAdvice"><tx:attributes><tx:method name="find*" read-only="true" propagation="SUPPORTS"/><tx:method name="save*" propagation="REQUIRED"/></tx:attributes></tx:advice><!--    配置AOP--><aop:config><!--        配置切入点表达式--><aop:pointcut id="pt1" expression="execution(* com.servcie.impl.*.*(..))"></aop:pointcut><!--        建立切入点表达式与事务通知的对应关系--><aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"></aop:advisor></aop:config>
</beans>

代理接口的配置accountDaoimpl.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.dao.AccountDao"><select id="findAll" resultType="com.domain.Account">select *from account;</select><insert id="saveAccount" parameterType="com.domain.Account">insert into account (name,money) values(#{name},#{money});</insert>
</mapper>

其余代码

表现层

package com.controller;import com.domain.Account;
import com.servcie.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;import javax.annotation.Resource;
import java.util.List;/*** 账户表现层*/
@Controller
@RequestMapping("/account")
public class AccountController {@Resource(name = "accountService") // @Autowiredprivate AccountService accountService;@RequestMapping("/findAll")public String findAll(Model model) {System.out.println("表现层：查询所有账户");final List<Account> accounts = accountService.findAll();
//        System.out.println(accounts);model.addAttribute("accounts", accounts);return "list";}@RequestMapping("saveAccount")public String saveAccount(Account account, Model model) {accountService.saveAccount(account);final List<Account> accounts = accountService.findAll();model.addAttribute("accounts", accounts);return "list";}}

业务层

package com.servcie.impl;import com.dao.AccountDao;
import com.domain.Account;
import com.servcie.AccountService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;import java.util.List;@Service("accountService")
public class AccountServiceimpl implements AccountService {@Autowiredprivate AccountDao accountDao;@Overridepublic List<Account> findAll() {System.out.println("业务层：查询所有账户信息");final List<Account> all = accountDao.findAll();return all;}@Overridepublic void saveAccount(Account account) {System.out.println("业务层：保存账户");accountDao.saveAccount(account);}
}

持久层

package com.dao;import com.domain.Account;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Repository;import java.util.List;/*** 账户的dao接口*/
@Repository
public interface AccountDao {//查询所有账户
//    @Select("select *from Account")List<Account> findAll();//保存账户
//    @Insert("insert into account (name,money) values(#{name},#{money})")void saveAccount(Account account);
}

domain

package com.domain;import java.io.Serializable;public class Account implements Serializable {private Integer id;private String name;private Double money;@Overridepublic String toString() {return "Account{" +"id=" + id +", name='" + name + '\'' +", money=" + money +'}';}public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Double getMoney() {return money;}public void setMoney(Double money) {this.money = money;}
}

查询效果展示

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附上spring约束

spring约束

<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/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsd"><!--开启注解的扫描，只希望扫描service和dao，controller不需要--><context:component-scan base-package="com"><!--        配置哪些注解不扫描--><context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/></context:component-scan></beans>

SpringMVC约束

<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"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context.xsdhttp://www.springframework.org/schema/aophttp://www.springframework.org/schema/aop/spring-aop.xsdhttp://www.springframework.org/schema/txhttp://www.springframework.org/schema/tx/spring-tx.xsdhttp://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc.xsd"><!--    注解扫描的包 --><context:component-scan base-package="com"><!--        只扫描的注解--><context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/></context:component-scan><!--    开启注解驱动--><mvc:annotation-driven></mvc:annotation-driven></beans>

Maven 依赖

<dependencies><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-oxm</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>5.2.5.RELEASE</version></dependency><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.9.5</version></dependency><dependency><groupId>javax.servlet.jsp</groupId><artifactId>javax.servlet.jsp-api</artifactId><version>2.3.3</version></dependency><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>4.0.1</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.10</version></dependency><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.5.4</version></dependency><!-- 整合Spring --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>2.0.4</version></dependency><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.6</version></dependency><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.12</version></dependency><dependency><groupId>c3p0</groupId><artifactId>c3p0</artifactId><version>0.9.1.2</version></dependency></dependencies>