SSM框架搭建

开发环境：

　　JDK　　1.7

　　Tomcat 　7

　　Spring　　5.0.5

　　Mybatis　　3.2.6

　　Log4j2　　2.10

　　Maven　　3.2.5

首先创建一个 Maven 工程： 

　　参考：  http://www.cnblogs.com/guofz/p/8903074.html

pom.xml:

<?xml version="1.0" encoding="UTF-8"?>

<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/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.demo</groupId>
  <artifactId>ssm</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>war</packaging>

  <name>ssm Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.7</maven.compiler.source>
    <maven.compiler.target>1.7</maven.compiler.target>
    <spring.version>5.0.5.RELEASE</spring.version>
    <mybatis.version>3.2.6</mybatis.version>
  </properties>

  <dependencies>
  
      <!-- Junit -->
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.11</version>
      <scope>test</scope>
    </dependency>
    
    <!-- servlet -->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>3.0-alpha-1</version>
    </dependency>
    
    <!-- springMVC -->
    <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>
    
    <!-- spring -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency> 
    
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aspects</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    
    <!-- mybatis核心包 -->    
    <dependency>  
        <groupId>org.mybatis</groupId>  
        <artifactId>mybatis</artifactId>  
        <version>${mybatis.version}</version>  
    </dependency>
      
    <!-- mybatis/spring包 -->  
    <dependency>  
        <groupId>org.mybatis</groupId>  
        <artifactId>mybatis-spring</artifactId>  
        <version>1.2.2</version>
    </dependency>
    
    <!-- 导入Mysql数据库链接jar包 -->  
    <dependency>  
        <groupId>mysql</groupId>  
        <artifactId>mysql-connector-java</artifactId>  
        <version>5.1.30</version>  
    </dependency>  
    <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->  
    <dependency>  
        <groupId>commons-dbcp</groupId>  
        <artifactId>commons-dbcp</artifactId>  
        <version>1.2.2</version>  
    </dependency>  
    <!-- JSTL标签类 -->  
    <dependency>  
        <groupId>jstl</groupId>  
        <artifactId>jstl</artifactId>  
        <version>1.2</version>  
    </dependency>  
    <!-- 日志文件管理包 -->  
    <!-- log start -->  
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-api</artifactId>
        <version>2.10.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>2.10.0</version>
    </dependency>

    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-web</artifactId>
      <version>2.9.1</version>
    </dependency>
  </dependencies>

  
        
  <build>
    <finalName>ssm</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.0.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.7.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.20.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

SpringMVC 环境：

web.xml 中添加SpringMVC核心处理器：

<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:conf/spring-mvc.xml</param-value>
      </init-param>
  </servlet>
  <servlet-mapping>
      <servlet-name>springMVC</servlet-name>
      <url-pattern>/</url-pattern>
  </servlet-mapping>

spring-mvc.xml:

<beans xmlns="http://www.springframework.org/schema/beans"  
    xmlns:context="http://www.springframework.org/schema/context"  
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
    xsi:schemaLocation="  
        http://www.springframework.org/schema/beans       
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
        http://www.springframework.org/schema/context   
        http://www.springframework.org/schema/context/spring-context-3.0.xsd  
        http://www.springframework.org/schema/mvc  
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">  
      
      <!-- 这个不配置，访问静态资源跟正常的请求有冲突 -->
      <mvc:annotation-driven/>
       
    <!-- 扫描包注解    -->
    <context:component-scan base-package="com.demo" />

    <!-- 静态资源映射 -->
    <mvc:resources location="/statistics/" mapping="/statistics/**" /> 
    
    <!-- 视图解析器 -->
    <bean id="viewResolver"  
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 前缀,我们的视图文件应该放到/WEB-INF/view/目录下,这里我们需要在WEB-INF下面创建view文件夹 -->  
        <property name="prefix" value="/WEB-INF/views/" />  
        <!-- 设置后缀为.jsp -->
        <property name="suffix" value=".jsp" />  
    </bean>
      
</beans>

然后写Controller 测试即可。在配置静态资源文件的时候起初没有配置 <mvc:annotation-driven/> 但是当从浏览器中访问请求到控制层时，后台找不到相应的请求，加上该注解就好了，很奇怪。有时间研究一下。

添加Spring：

web.xml 修改：

<!-- spring配置文件 -->
  <context-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:conf/applicationContext.xml</param-value>
  </context-param>
<listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

<!-- Spring字符集过滤器 -->
  <filter>
      <filter-name>SpringEncodingFilter</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-mapping>
      <filter-name>SpringEncodingFilter</filter-name>
      <url-pattern>/*</url-pattern>
  </filter-mapping>

applicationContext.xml: 暂时为空

<?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-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
">
</beans>

添加Mybatis支持：

applicationContext.xml 添加：

<!-- 1.配置jdbc文件 -->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
            <property name="locations" value="classpath:conf/jdbc.properties"/>
    </bean>

    <import resource="classpath:conf/spring-mybatis.xml" />

jdbc.properties

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf8
username=root
password=
#定义初始连接数  
initialSize=0  
#定义最大连接数  
maxActive=20  
#定义最大空闲  
maxIdle=20  
#定义最小空闲  
minIdle=1  
#定义最长等待时间  
maxWait=60000

spring-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:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
   http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
   http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  
        destroy-method="close">  
        <property name="driverClassName" value="${driver}" />  
        <property name="url" value="${url}" />  
        <property name="username" value="${username}" />  
        <property name="password" value="${password}" />  
        <!-- 初始化连接大小 -->  
        <property name="initialSize" value="${initialSize}"></property>  
        <!-- 连接池最大数量 -->  
        <property name="maxActive" value="${maxActive}"></property>  
        <!-- 连接池最大空闲 -->  
        <property name="maxIdle" value="${maxIdle}"></property>  
        <!-- 连接池最小空闲 -->  
        <property name="minIdle" value="${minIdle}"></property>  
        <!-- 获取连接最大等待时间 -->  
        <property name="maxWait" value="${maxWait}"></property>  
    </bean> 
     
    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->  
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        <property name="dataSource" ref="dataSource" />  
        <!-- 自动扫描mapping.xml文件 -->  
        <property name="mapperLocations" value="classpath:com/demo/mapper/*.xml"></property>  
    </bean>   
    
     <!-- DAO接口所在包名，Spring会自动查找其下的类 ,自动扫描了所有的XxxxMapper.xml对应的mapper接口文件,只要Mapper接口类和Mapper映射文件对应起来就可以了-->  
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
        <property name="basePackage" value="com.demo.dao" />  
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  
    </bean>  
    
    <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
    <!-- 配置事务管理器 -->
    <bean id="transactionManager"  
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
        <property name="dataSource" ref="dataSource" />  
    </bean> 

    <!--======= 事务配置 End =================== -->
    <!-- 配置基于注解的声明式事务 -->
    <!-- enables scanning for @Transactional annotations -->
    <tx:annotation-driven transaction-manager="transactionManager" />
</beans>

Mysql数据库：

测试运行：　　

　　http://localhost:8080/ssm/user/getUser?userId=1

　　

 通过！

 添加 Log4j2 打印Mybatis的SQL语句：

起初使用 log4j 但是当导入log4j 的 jar 包 和配置文件以后发现没有效果，经过查看发现 Spring 5 以后建议使用 log4j2来代替 log4j

下面开始log4j2 的配置：

pom.xml 文件中添加：

<!-- 日志文件管理包 -->  
    <!-- log start -->  
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-api</artifactId>
        <version>2.10.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-core</artifactId>
        <version>2.10.0</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-web</artifactId>
      <version>2.9.1</version>
    </dependency>

web.xml 文件中添加：

<!-- log4j2-begin-->
  <context-param>  
     <param-name>log4jConfiguration</param-name>  
     <param-value>classpath:conf/log4j2.xml</param-value>
  </context-param>
   <listener>
       <listener-class>org.apache.logging.log4j.web.Log4jServletContextListener</listener-class>
  </listener>
   <filter>
       <filter-name>log4jServletFilter</filter-name>
       <filter-class>org.apache.logging.log4j.web.Log4jServletFilter</filter-class>
   </filter>
   <filter-mapping>
       <filter-name>log4jServletFilter</filter-name>
       <url-pattern>/*</url-pattern>
       <dispatcher>REQUEST</dispatcher>
       <dispatcher>FORWARD</dispatcher>
       <dispatcher>INCLUDE</dispatcher>
       <dispatcher>ERROR</dispatcher>
   </filter-mapping>
   <!-- log4j2-end -->

log4j2.xml:

<?xml version="1.0" encoding="UTF-8"?>  
<Configuration status="WARN">  
<!-- Author:  Crunchify.com  -->  
    <Appenders>  
        <Console name="Console" target="SYSTEM_OUT">  
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} [%t] %-5p %c{1}:%L - %msg%n" />  
        </Console>  
        <!-- 注意%i和 %d{yyyyMMdd}，这样子才能将文件删除-->  
        <RollingFile name="RollingFile" filename="/log/Convergence.log"  
            filepattern="/log/%d{yyyyMMdd}-Convergence-%i.log">  
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} [%t] %-5p %c{1}:%L - %msg%n" />  
            <Policies>  
                <SizeBasedTriggeringPolicy size="20 MB" />  
            </Policies>  
            <DefaultRolloverStrategy max="20" >  
                <Delete basePath="/log/" maxDepth="1">    
                  <IfFileName glob="*-Convergence-*.log" />    
                  <IfLastModified age="30D" />    
                </Delete>    
            </DefaultRolloverStrategy>  
        </RollingFile>  
    </Appenders>  
    <Loggers>  
        <!-- name中的值为mybatis的DAO层接口包路径 -->  
        <logger name="com.demo.dao" level="DEBUG" additivity="false">    
            <appender-ref ref="Console"/>    
        </logger>    
        <Root level="DEBUG">  
            <AppenderRef ref="Console" />  
            <AppenderRef ref="RollingFile" />  
        </Root>  
    </Loggers>  
</Configuration> 

注意： logger 的 name 属性必须是mybatis 的dao层接口的路径 

测试运行：

到此正式结束。