SSM中（Spring-SpringMVC-Mybatis）（二：整合）

使用Maven整合一个SSM,当然要配有Maven环境，Maven的环境配置自行百度，挺好配的

创建一个Maven项目以后，目录结构如图所示：

然后就是各部分配置：

　　首先pom导入依赖jar包：

 <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.57.DXYHospital</groupId>
   <artifactId>demo1</artifactId>
   <packaging>war</packaging>
   <version>0.0.1-SNAPSHOT</version>
   <name>DXYHospital Maven Webapp</name>
   <url>http://maven.apache.org</url>
   <dependencies>
       <!-- Json依赖 -->
 <!-- https://mvnrepository.com/artifact/org.json/json -->
 <dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-core</artifactId>
 <version>2.8.0</version>
 </dependency>
 <dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-annotations</artifactId>
 <version>2.8.0</version>
 </dependency>
 <dependency>
 <groupId>com.fasterxml.jackson.core</groupId>
 <artifactId>jackson-databind</artifactId>
 <version>2.8.0</version>
 </dependency>

     <dependency>
         <groupId>org.json</groupId>
         <artifactId>json</artifactId>
         <version>20160810</version>
     </dependency>

 <dependency>
     <groupId>com.alibaba</groupId>
     <artifactId>fastjson</artifactId>
     <version>1.2.39</version>
 </dependency>
 <!-- maven fonts 字体 -->
 <!-- shiro相关依赖 -->
         <dependency>
             <groupId>org.apache.shiro</groupId>
             <artifactId>shiro-core</artifactId>
             <version>1.2.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.shiro</groupId>
             <artifactId>shiro-ehcache</artifactId>
             <version>1.2.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.shiro</groupId>
             <artifactId>shiro-web</artifactId>
             <version>1.2.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.shiro</groupId>
             <artifactId>shiro-quartz</artifactId>
             <version>1.2.2</version>
         </dependency>
         <dependency>
             <groupId>org.apache.shiro</groupId>
             <artifactId>shiro-spring</artifactId>
             <version>1.2.2</version>
         </dependency>
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
             <version>5.1.25</version>
         </dependency>
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
             <version>0.2.23</version>
         </dependency>
  <!-- 单元测试 -->
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <version>4.10</version>
             <scope>test</scope>
         </dependency>

         <!-- Spring 相关依赖 -->
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context</artifactId>
             <version>4.1.3.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-beans</artifactId>
             <version>4.1.3.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
             <version>4.1.3.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-jdbc</artifactId>
             <version>4.1.3.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-aspects</artifactId>
             <version>4.1.3.RELEASE</version>
         </dependency>

         <!-- Mybatis 依赖 -->
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
             <version>3.4.2</version>
         </dependency>

         <!-- mybatis整合Spring -->
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis-spring</artifactId>
             <version>1.3.0</version>
         </dependency>

         <!-- Mysql 依赖 -->
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
             <version>5.1.6</version>
         </dependency>

         <!-- log4j日志 依赖 -->
         <!-- 如果log4j的版本在1.2.14以上，则会出现下面的错误：
 Missing artifact javax.jms:jms:jar:1.1:compile
 Missing artifact com.sun.jdmk:jmxtools:jar:1.2.1:compile
 Missing artifact com.sun.jmx:jmxri:jar:1.2.1:compile
 解决方案：原因是log4j在1.2.15及以上版本更换了协议，与jms冲突。
 解决办法有两种：一是使用1.2.14版本，二是手动下载jms.jar，安装到maven本地仓库中
  -->
         <dependency>
             <groupId>log4j</groupId>
             <artifactId>log4j</artifactId>
             <version>1.2.15</version>
             <exclusions>
                 <exclusion>
                     <groupId>com.sun.jmx</groupId>
                     <artifactId>jmxri</artifactId>
                 </exclusion>
                 <exclusion>
                     <groupId>com.sun.jdmk</groupId>
                     <artifactId>jmxtools</artifactId>
                 </exclusion>
                 <exclusion>
                     <groupId>javax.jms</groupId>
                     <artifactId>jms</artifactId>
                 </exclusion>
             </exclusions>
         </dependency>

         <!-- JSP相关 -->
         <dependency>
             <groupId>jstl</groupId>
             <artifactId>jstl</artifactId>
             <version>1.2</version>
         </dependency>
         <dependency>
             <groupId>javax.servlet</groupId>
             <artifactId>servlet-api</artifactId>
             <version>2.5</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>javax.servlet</groupId>
             <artifactId>jsp-api</artifactId>
             <version>2.0</version>
             <scope>provided</scope>
         </dependency>
   <!-- 阿里 -->
     <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>druid</artifactId>
             <version>0.2.23</version>
         </dependency>
   </dependencies>
   <build>
     <finalName>demo1</finalName>
   </build>
 </project>

里面的 shiro依赖可以去掉，和json依赖里面的fastjson也可以去掉，

首先配置 applicationContext-mybatis.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:p="http://www.springframework.org/schema/p"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
     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-4.0.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context.xsd
         http://www.springframework.org/schema/tx
         http://www.springframework.org/schema/tx/spring-tx-4.0.xsd">  

     <context:component-scan base-package="org.team57.dxyh.mapper"/>
     <context:component-scan base-package="org.team57.dxyh.service"/>  

     <!-- Mybatis 和 Spring的整合 -->
     <!-- 数据源 -->

     <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
         <!-- 基本属性 url、user、password -->
         <property name="url" value="jdbc:mysql://localhost:3306/ceshi"/>
         <property name="username" value="root"/>
         <property name="password" value="123456"/>

         <!-- 配置初始化大小、最小、最大 -->
         <property name="initialSize" value="10"/>
         <property name="minIdle" value="10"/>
         <property name="maxActive" value="50"/>

         <!-- 配置获取连接等待超时的时间 -->
         <property name="maxWait" value="60000"/>
         <!-- 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="300000" />
         <property name="validationQuery" value="SELECT 'x'" />
         <property name="testWhileIdle" value="true" />
         <property name="testOnBorrow" value="false" />
         <property name="testOnReturn" value="false" />

         <!-- 打开PSCache，并且指定每个连接上PSCache的大小  如果用Oracle，则把poolPreparedStatements配置为true，mysql可以配置为false。-->
         <property name="poolPreparedStatements" value="true" />
         <property name="maxPoolPreparedStatementPerConnectionSize" value="20" />
         <!-- 配置监控统计拦截的filters -->
         <property name="filters" value="wall,stat" />
     </bean>

     <!-- 2.Mybatis 的 SqlSession的工厂：SqlSessionFactoryBean dataSource引用数据源 Mybatis
         定义数据源，同意加载配置 -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <property name="dataSource" ref="dataSource"></property>
         <property name="mapperLocations" value="classpath:org/team57/dxyh/mapper/*.xml" />
         <property name="configLocation" value="classpath:mybatis-config.xml"></property>
     </bean>  

     <!-- 3. Mybatis自动扫描加载Sql映射文件/接口：MapperScannerConfigurer sqlSessionFactory
         basePackage:指定sql映射文件/接口所在的包（自动扫描） -->
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <property name="basePackage" value="org.team57.dxyh.mapper"></property>
         <property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
     </bean>  

     <!-- 4.事务管理：DataSourceTransactionManager dataSource 引用上面定义好的数据源 -->
     <bean id="txManager"
         class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
         <property name="dataSource" ref="dataSource"></property>
     </bean>  

     <!-- 5.使用声明式事务： transaction-manager = "txManager" tx:advice 这种 是用 aop方式管理事物
         annotation-driven 这种是注解方式管理事物 第一种方式，需要在spring配置文件配置一些参数 第二种方式，需要在 类里 加一些注解进行事物管理
         用一种就行，没必须都用 -->
     <tx:annotation-driven transaction-manager="txManager" />  

 </beans>  

再配置 mybatis-config.xml 这是一个全局配置，可以省略

 <?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>
     <!-- 配置打印 SQL 到控制台 以及懒加载 -->
     <settings>
         <setting name="logImpl" value="STDOUT_LOGGING" />
         <!-- 打开延迟加载的全局开关 -->
         <setting name="lazyLoadingEnabled" value="true" />
         <setting name="aggressiveLazyLoading" value="false" />
         <setting name="mapUnderscoreToCamelCase" value="true" />
     </settings>
     <typeAliases>
            <package name="org.team57.dxyh.entity"/>
     </typeAliases>
     <mappers>
         <package name="org.team57.dxyh.mapper"/>
     </mappers>
 </configuration>  

再配置 spring-MVC.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:p="http://www.springframework.org/schema/p"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
     xmlns:task="http://www.springframework.org/schema/task"
     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-4.0.xsd
         http://www.springframework.org/schema/context
         http://www.springframework.org/schema/context/spring-context.xsd
         http://www.springframework.org/schema/tx
         http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
         http://www.springframework.org/schema/task
         http://www.springframework.org/schema/task/spring-task-4.0.xsd">
     <!-- 开启注解 -->
     <mvc:annotation-driven/>
     <!-- 配置自定扫描包 -->
     <context:component-scan base-package="org.team57.dxyh.controller"/>
     <context:component-scan base-package="org.team57.dxyh.service"/>
     <context:component-scan base-package="org.team57.dxyh.Shiro"/>
         <context:component-scan base-package="org.team57.dxyh.service.impl"/>

         <!-- 定时器，住院自动扣费 -->
         <task:executor pool-size="5" id="executor"/>
         <task:scheduler pool-size="10" id="scheduler"/>
         <task:annotation-driven scheduler="scheduler" executor="executor"/>

     <!-- 配置视图解析器: 如何把 handler 方法返回值解析为实际的物理视图 -->
     <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/"></property>
         <property name="suffix" value=".jsp"></property>
     </bean>
     <!-- 处理静态资源 -->
     <mvc:resources location="/js/" mapping="/js/**"/>
     <mvc:resources location="/css/" mapping="/css/**"/>
     <mvc:resources location="/fonts/" mapping="/fonts/**"/>
 </beans>  

最后配置web.xml

 <!DOCTYPE web-app PUBLIC
  "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
  "http://java.sun.com/dtd/web-app_2_3.dtd" >

 <web-app>
   <!-- 加载spring与mybatis的整合配置 -->
  <context-param>
   <param-name>contextConfigLocation</param-name>
   <param-value>classpath:applicationContext-mybatis.xml</param-value>
  </context-param>

   <!-- 解决工程编码过滤器
         注意:请将此过滤器放在所有过滤器的前面，否则有可能出现乱码  -->
  <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>
   <init-param>
    <param-name>forceEncoding</param-name>
    <param-value>true</param-value>
   </init-param>
  </filter>
  <filter>
       <filter-name>shiroFilter</filter-name>
       <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
       <init-param>
           <param-name>targetFilterLifecycle</param-name>
           <param-value>true</param-value>
       </init-param>
       </filter>
       <filter-mapping>
           <filter-name>shiroFilter</filter-name>
           <url-pattern>/*</url-pattern>
       </filter-mapping>
  <filter>
   <filter-name>HiddenHttpMethodFilter</filter-name>
   <filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
  </filter>
  <filter-mapping>
   <filter-name>encodingFilter</filter-name>
   <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!-- 配置HiddenHttpMethodFilter过滤器，把 POST 请求 转换为 DELETE/PUT请求 -->
  <filter-mapping>
   <filter-name>HiddenHttpMethodFilter</filter-name>
   <url-pattern>/*</url-pattern>
  </filter-mapping>
  <!-- 加载Spring 容器配置 -->
  <listener>
   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 防止Spring内存溢出监听器 -->
  <listener>
   <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
  </listener>
  <!-- 配置 springMVC 核心控制器 -->
  <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>
  </servlet>

  <servlet-mapping>
   <servlet-name>springMVC</servlet-name>
   <url-pattern>/</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
   <welcome-file>login.jsp</welcome-file>
  </welcome-file-list>
  <login-config>
   <auth-method>BASIC</auth-method>
  </login-config>
 </web-app>