微信开发准备第二步 springmvc mybatis项目结构搭建

前面一篇有说道如何在MyEclipse中搭建maven项目，这里将继续介绍如何在搭建好的基础maven项目中引入我们常用的javaweb框架——SpringMVC！

①在建立好的maven项目中的pom.xml文件引入依赖，代码如下：

<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>wechat.cuiyongzhi.com</groupId>
<artifactId>wechat</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>wechat</name>
<url>http://maven.apache.org</url>
<dependencies>
 <!-- spring -->
 <dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-test</artifactId>
  <version>3.2.0.RELEASE</version>
 </dependency>
 <dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-webmvc</artifactId>
  <version>3.2.0.RELEASE</version>
 </dependency>
 <dependency>
  <groupId>org.springframework</groupId>
  <artifactId>spring-core</artifactId>
  <version>3.2.0.RELEASE</version>
 </dependency>

<!-- mybatis -->
 <dependency>
  <groupId>org.mybatis</groupId>
  <artifactId>mybatis</artifactId>
  <version>3.1.1</version>
 </dependency>
 <dependency>
  <groupId>org.mybatis</groupId>
  <artifactId>mybatis-spring</artifactId>
  <version>1.1.1</version>
 </dependency>

<!-- mysql -->
 <dependency>
  <groupId>mysql</groupId>
  <artifactId>mysql-connector-java</artifactId>
  <version>5.1.21</version>
 </dependency>

<!-- junit测试 -->
 <dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.11</version>
  <scope>test</scope>
 </dependency>

<!-- mysql阿里连接池druid -->
 <dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>druid</artifactId>
  <version>0.2.9</version>
 </dependency>

<!-- spring aop包 -->
 <dependency>
  <groupId>org.aspectj</groupId>
  <artifactId>aspectjweaver</artifactId>
  <version>1.7.1</version>
 </dependency>

<!-- json包 -->
 <dependency>
  <groupId>com.alibaba</groupId>
  <artifactId>fastjson</artifactId>
  <version>1.2.7</version>
 </dependency>

<!-- 文件上传包 -->
 <dependency>
  <groupId>commons-fileupload</groupId>
  <artifactId>commons-fileupload</artifactId>
  <version>1.2.2</version>
 </dependency>

<!--servlet包 -->
 <dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>servlet-api</artifactId>
  <version>3.0-alpha-1</version>
 </dependency>

<dependency>
  <groupId>javax.servlet.jsp</groupId>
  <artifactId>jsp-api</artifactId>
  <version>2.1</version>
  <scope>provided</scope>
 </dependency>

<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>jstl</artifactId>
  <version>1.2</version>
 </dependency>

<!-- 日志包 -->
 <dependency>
  <groupId>log4j</groupId>
  <artifactId>log4j</artifactId>
  <version>1.2.17</version>
 </dependency>
</dependencies>
<build>
 <finalName>wechat</finalName>
</build>
</project>

②修改项目路径下的web.xml文件如下：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:web="http://java.sun.com/xml/ns/javaee" 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
http://www.springframework.org/schema/websocket http://www.springframework.org/schema/websocket/spring-websocket.xsd"
id="WebApp_ID" version="3.0">
<display-name>com.cuiyongzhi.wechat</display-name>
<context-param>
 <param-name>contextConfigLocation</param-name>
 <param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value>
 <!-- ,classpath:spring-quartz.xml 用于做任务调度 任务定时都可以 -->
</context-param>
<context-param>
 <param-name>log4jConfigLocation</param-name>
 <param-value>classpath:log4j.properties</param-value>
</context-param>
<listener>
 <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<context-param>
 <param-name>spring.profiles.active</param-name>
 <param-value>dev</param-value>
</context-param>
<context-param>
 <param-name>spring.profiles.default</param-name>
 <param-value>dev</param-value>
</context-param>
<context-param>
 <param-name>spring.liveBeansView.mbeanDomain</param-name>
 <param-value>dev</param-value>
</context-param>
<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>
<listener>
 <description>spring * </description>
 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- 防止内存溢出 -->
<listener>
 <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<servlet>
 <description>spring mvc servlet</description>
 <servlet-name>springMvc</servlet-name>
 <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 <init-param>
  <description>spring mvc 配置文件</description>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:spring-mvc.xml</param-value>
 </init-param>
 <load-on-startup>1</load-on-startup>
</servlet>
<servlet>
 <servlet-name>interface_url-init_servlet</servlet-name>
 <servlet-class>com.cuiyongzhi.web.start.InterfaceUrlIntiServlet</servlet-class>
 <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>/index.jsp</welcome-file>
</welcome-file-list>
<session-config>
 <session-timeout>300</session-timeout>
</session-config>

<error-page>
 <error-code>404</error-code>
 <location>/WEB-INF/error/error.jsp</location>
</error-page>

<error-page>
 <error-code>500</error-code>
 <location>/WEB-INF/error/error.jsp</location>
</error-page>

<servlet-mapping>
 <servlet-name>default</servlet-name>
 <url-pattern>*.css</url-pattern>
</servlet-mapping>

<servlet-mapping>
 <servlet-name>default</servlet-name>
 <url-pattern>*.gif</url-pattern>
</servlet-mapping>

<servlet-mapping>
 <servlet-name>default</servlet-name>
 <url-pattern>*.jpg</url-pattern>
</servlet-mapping>

<servlet-mapping>
 <servlet-name>default</servlet-name>
 <url-pattern>*.js</url-pattern>
</servlet-mapping>

<servlet-mapping>
 <servlet-name>default</servlet-name>
 <url-pattern>*.xhtml</url-pattern>
</servlet-mapping>

<servlet-mapping>
 <servlet-name>default</servlet-name>
 <url-pattern>*.html</url-pattern>
</servlet-mapping>

<filter>
 <filter-name>DruidWebStatFilter</filter-name>
 <filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>
 <init-param>
  <param-name>exclusions</param-name>
  <param-value>*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*</param-value>
 </init-param>
</filter>
<filter-mapping>
 <filter-name>DruidWebStatFilter</filter-name>
 <url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
 <servlet-name>DruidStatView</servlet-name>
 <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
 <init-param>
  <!-- 允许清空统计数据 -->
  <param-name>resetEnable</param-name>
  <param-value>true</param-value>
 </init-param>
 <init-param>
  <!-- 用户名 -->
  <param-name>loginUsername</param-name>
  <param-value>cuiyongzhi</param-value>
 </init-param>
 <init-param>
  <!-- 密码 -->
  <param-name>loginPassword</param-name>
  <param-value>123456</param-value>
 </init-param>
</servlet>
<servlet-mapping>
 <servlet-name>DruidStatView</servlet-name>
 <url-pattern>/druid/*</url-pattern>
</servlet-mapping>
<!-- 访问监控页面：http://ip：port/projectName/druid/index.html -->

<jsp-config>
 <jsp-property-group>
  <display-name>jspConfiguration</display-name>
  <url-pattern>*.jsp</url-pattern>
  <el-ignored>false</el-ignored>
  <scripting-invalid>false</scripting-invalid>
  <include-prelude>/WEB-INF/common/head.jsp</include-prelude>
 </jsp-property-group>
</jsp-config>

</web-app>

③添加数据库配置信息，这里项目配置的数据库为MySQL，在 resources下新建config.properties配置文件，设置如下：

validationQuery=SELECT 1
jdbc_url=jdbc:mysql://127.0.0.1:3306/wechat?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
jdbc_username=root
jdbc_password=123456789

④在 resources下新建spring.xml配置文件，设置如下：

<?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" 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">
<!-- 引入属性文件 -->
<context:property-placeholder location="classpath:config.properties" />
<!-- 自动扫描(自动注入) -->
<context:component-scan base-package="com.cuiyongzhi.web.service" />
<context:component-scan base-package="com.cuiyongzhi.wechat.*" />

</beans>

⑤在 resources下新建spring-mvc.xml配置文件，设置如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" 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" xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

<!-- 自动扫描controller包下的所有类，使其认为spring mvc的控制器 -->
<context:component-scan base-package="com.cuiyongzhi.web.controller" />

<!-- 避免IE执行AJAX时,返回JSON出现下载文件 -->
<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
 <property name="supportedMediaTypes">
  <list>
   <value>text/html;charset=UTF-8</value>
  </list>
 </property>
</bean>

<!-- 启动Spring MVC的注解功能，完成请求和注解POJO的映射 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
 <property name="messageConverters">
  <list>
   <ref bean="mappingJacksonHttpMessageConverter" /><!-- json转换器 -->
  </list>
 </property>
</bean>

<!-- 对模型视图名称的解析，即在模型视图名称添加前后缀 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/views/" p:suffix=".jsp" />

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
 <property name="defaultEncoding">
  <value>UTF-8</value>
 </property>
 <property name="maxUploadSize">
  <value>32505856</value><!-- 上传文件大小限制为31M，31*1024*1024 -->
 </property>
 <property name="maxInMemorySize">
  <value>4096</value>
 </property>
</bean>

</beans>

⑥在 resources下新建spring-mybatis.xml配置文件，设置如下：

<?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
">

<!-- 配置数据源 -->
<bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
 <property name="url" value="${jdbc_url}" />
 <property name="username" value="${jdbc_username}" />
 <property name="password" value="${jdbc_password}" />

<!-- 初始化连接大小 -->
 <property name="initialSize" value="5" />
 <!-- 连接池最大使用连接数量 -->
 <property name="maxActive" value="100" />
 <!-- 连接池最大空闲 -->
 <property name="maxIdle" value="10" />
 <!-- 连接池最小空闲 -->
 <property name="minIdle" value="0" />
 <!-- 获取连接最大等待时间 -->
 <property name="maxWait" value="60000" />

<property name="poolPreparedStatements" value="true" />
 <property name="maxPoolPreparedStatementPerConnectionSize" value="33" />

<property name="validationQuery" value="${validationQuery}" />
 <property name="testOnBorrow" value="false" />
 <property name="testOnReturn" value="false" />
 <property name="testWhileIdle" value="true" />

<!-- 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="25200000" />

<!-- 打开removeAbandoned功能 -->
 <property name="removeAbandoned" value="true" />
 <!-- 1800秒，也就是30分钟 -->
 <property name="removeAbandonedTimeout" value="1800" />
 <!-- 关闭abanded连接时输出错误日志 -->
 <property name="logAbandoned" value="true" />

<!-- 监控数据库 -->
 <!-- <property name="filters" value="stat" /> -->
 <property name="filters" value="mergeStat" />
</bean>

<!-- myBatis文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
 <property name="dataSource" ref="dataSource" />
 <!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 -->
 <property name="mapperLocations" value="classpath:com/cuiyongzhi/web/mapping/*.xml" />
</bean>

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
 <property name="basePackage" value="com.cuiyongzhi.web.dao" />
 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>

<!-- 配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 <property name="dataSource" ref="dataSource" />
</bean>

<!-- 注解方式配置事物 -->
<!-- <tx:annotation-driven transaction-manager="transactionManager" /> -->

<!-- * 方式配置事物 -->
<tx:advice id="transactionAdvice" transaction-manager="transactionManager">
 <tx:attributes>
  <tx:method name="add*" propagation="REQUIRED" />
  <tx:method name="append*" propagation="REQUIRED" />
  <tx:method name="insert*" propagation="REQUIRED" />
  <tx:method name="save*" propagation="REQUIRED" />
  <tx:method name="update*" propagation="REQUIRED" />
  <tx:method name="modify*" propagation="REQUIRED" />
  <tx:method name="edit*" propagation="REQUIRED" />
  <tx:method name="delete*" propagation="REQUIRED" />
  <tx:method name="remove*" propagation="REQUIRED" />
  <tx:method name="repair" propagation="REQUIRED" />
  <tx:method name="delAndRepair" propagation="REQUIRED" />
  <tx:method name="get*" propagation="SUPPORTS" />
  <tx:method name="find*" propagation="SUPPORTS" />
  <tx:method name="load*" propagation="SUPPORTS" />
  <tx:method name="search*" propagation="SUPPORTS" />
  <tx:method name="datagrid*" propagation="SUPPORTS" />
  <tx:method name="*" propagation="SUPPORTS" />
 </tx:attributes>
</tx:advice>
<aop:config>
 <aop:pointcut id="transactionPointcut" expression="execution(* com.cuiyongzhi.web.service..*Impl.*(..))" />
 <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" />
</aop:config>

<!-- 配置druid监控spring jdbc -->
<bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor">
</bean>
<bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">
 <property name="patterns">
  <list>
   <value>com.cuiyongzhi.web.service.*</value>
  </list>
 </property>
</bean>
<aop:config>
 <aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" />
</aop:config>

</beans>

⑦在 resources下新建log4j.properties配置文件，用于日志的输出等级以及输出位置设置，设置如下：

到这里springmvc+mybatis的基本配置文件基本就完成了，大致的项目结构如下：

本篇主要以代码示例为主，基本的的项目搭建就记录到这里，下一篇我将简述在这个框架下的一些简单应用，感谢你的翻阅，如有疑问可以讨论！