微信开发之springmvc mybatis项目结构搭建的java代码详解

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监听器</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" /> -->      <!-- 拦截器方式配置事物 -->   <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！

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