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WeChat에서 개발한 springmvc mybatis 프로젝트 구조의 Java 코드에 대한 자세한 설명

Y2J
Y2J원래의
2017-05-04 09:30:062487검색

이 기사에서는 WeChat 개발 준비의 두 번째 단계인 springmvc 및 mybatis 프로젝트 구조를 주로 자세히 소개하며 관심 있는 친구는 이전 기사를 참조할 수 있습니다.

기사에서 이야기하는 내용은 다음과 같습니다. MyEclipse에서 Maven 프로젝트를 빌드하는 방법 여기서는 일반적으로 사용되는 javaweb 프레임워크인 SpringMVC를 빌드된 기본 Maven 프로젝트에 도입하는 방법을 계속해서 소개하겠습니다!

<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>

③데이터베이스 구성 정보를 추가합니다. 여기서 프로젝트에 구성된 데이터베이스는 리소스 아래에 새 config.properties 구성 파일을 생성하고 다음과 같이 설정합니다.

<?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>

④새 spring.xml을 생성합니다.

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

⑤ 리소스 아래에 새로운 spring-mvc.xml 구성 파일을 생성하고 다음과 같이 설정합니다.

<?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>

⑥ 새로운 스프링을 생성합니다. -mybatis.xml 구성 파일을 리소스 아래에 두고 다음과 같이 설정합니다.

<?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>

⑦ 리소스 아래에 새 log4j.properties 구성 파일을 생성합니다. 이 파일은 로그의 출력 수준과 출력 위치를 설정하는 데 사용됩니다. 설정은 다음과 같습니다.

여기로 이동 springmvc+mybatis 기본 구성 파일이 완성되었습니다. 일반적인 프로젝트 구조는 다음과 같습니다.

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