maven分层架构搭建
1.准备工作:
1.创建数据源 CREATE TABLE `users` ( `id` int(10) NOT NULL AUTO_INCREMENT, `name` varchar(20) DEFAULT NULL, `price` float(10,0) DEFAULT NULL, `pic` varchar(40) DEFAULT NULL, `createtime` datetime DEFAULT NULL, `detail` varchar(200) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=27 DEFAULT CHARSET=utf8; 2.工程模块如下: users-parent pom 父工程，统一管理子工程和jar包版本 users-model jar 封装JavaBean对象 users-dao jar 持久层 users-service jar 业务层 users-web war 控制层
2.创建父工程 :
(1)导入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.bky</groupId>
<artifactId>users-parent</artifactId>
<version>1.0-SNAPSHOT</version>
<!--管理的模块--> 模块创建后会自己创建
<modules>
<module>users-model</module>
<module>users-dao</module>
<module>users-service</module>
<module>users-web</module>
</modules>
<packaging>pom</packaging>
<!--
1.jar包管理
2.管理子工程
-->
<properties>
<spring.version>5.0.2.RELEASE</spring.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<mysql.version>5.1.6</mysql.version>
<mybatis.version>3.4.5</mybatis.version>
<aspectjweaver.version>1.6.8</aspectjweaver.version>
<junit.version>4.12</junit.version>
<jsp-api.version>2.0</jsp-api.version>
<servlet-api.version>2.5</servlet-api.version>
<jstl.version>1.2</jstl.version>
<mybatis-spring.version>1.3.0</mybatis-spring.version>
<druid.version>1.0.9</druid.version>
<!--文件的编码格式-->
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<!--
jar包管理
dependencyManagement:只是负责管理jar包的坐标信息，并不会依赖到工程中
dependencies:jar包依赖(是会将jar包导入进来)
-->
<!--jar包管理-->
<dependencyManagement>
<!--引入依赖-->
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectjweaver.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<!--spring包-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<!--用于SpringMVC-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<!--用于数据库源相关操作-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<!--ServletAPI-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet-api.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp-api.version}</version>
<scope>provided</scope>
</dependency>
<!--jstl标签-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<!--MySQL数据库驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<!--测试框架-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>compile</scope>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!--MyBatis集成Spring-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>${mybatis-spring.version}</version>
</dependency>
<!--数据源-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>${druid.version}</version>
</dependency>
</dependencies>
</dependencyManagement>
</project>
3.创建users-model模块
(1)导入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">
<!--指定父工程-->
<parent>
<artifactId>users-parent</artifactId>
<groupId>com.bky</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>users-model</artifactId>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
</project>
(2)创建javabean
4.创建users-dao模块
(1)导入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">
<parent>
<artifactId>users-parent</artifactId>
<groupId>com.bky</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>users-dao</artifactId>
<packaging>jar</packaging>
<version>1.0-RELEASES</version>
<!--引入依赖-->
<dependencies>
<!--model的依赖-->
<dependency>
<groupId>com.bky</groupId>
<artifactId>users-model</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
</dependency>
<!--MyBatis集成Spring-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
</dependency>
<!--数据源-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
</dependency>
<!--MySQL数据库驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<!--SpringJdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
</dependency>
<!-- log end -->
</dependencies>
(2) usersMapper.xml 映射器
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.bky.mapper.usersMapper">
<!--根据ID查询-->
<select id="getById" parameterType="int" resultType="users">
select * from users where id=#{id}
</select>
</mapper>
(3)创建dao接口
public interface UsersMapper {
users getById(Integer id);
}
(4)创建spring-dao.xml配置文件(忘记写了,只能放后面了)
<?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"
xs i:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- 数据库连接池 -->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
destroy-method="close">
<property name="url" value="jdbc:mysql://127.0.0.1:3306/maven?characterEncoding=utf8" />
<property name="username" value="root" />
<property name="password" value="itcast" />
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
</bean>
<!-- SqlSessionFactoryBean -->
<bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="typeAliasesPackage" value="com.bky.model" />
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 配置接口扫描包 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"
p:basePackage="com.bky.mapper"/>
</beans>
typeAliasesPackage:指定JavaBean的别名包路径
5.创建users-service
(1)导入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">
<parent>
<artifactId>users-parent</artifactId>
<groupId>com.bky</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>users-service</artifactId>
<packaging>jar</packaging>
<!--引入依赖-->
<dependencies>
<!--依赖dao-->
<dependency>
<groupId>com.bky</groupId>
<artifactId>users-dao</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!-- spring -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
</dependency>
</dependencies>
</project>
(2) 创建spring-service.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:context="http://www.springframework.org/schema/context" 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.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.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
<!--
1.包扫描
2.配置声明式事务
a.准备数据源
b.配置事务管理器
c.配置事务执行规则[事务的传播特性]
d.配置通知，指定切点
-->
<!--包扫描-->
<context:component-scan base-package="com.bky">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!--
配置声明式事务
准备数据源
<import resource="spring-mybatis.xml" />:相当于将spring-mybatis.xml的配置融合过来了
可以直接使用导入的配置文件的配置信息
-->
<import resource="spring-mybatis.xml" />
<!--配置事务管理器-->
<bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!--注入数据源-->
<property name="dataSource" ref="dataSource" />
</bean>
<!--配置事务执行规则[事务的传播特性]-->
<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="add*" />
<tx:method name="update*" />
<tx:method name="delete*" />
<!--只读-->
<tx:method name="*" read-only="true" />
</tx:attributes>
</tx:advice>
<!--配置通知，指定切点-->
<aop:config>
<aop:advisor advice-ref="txAdvice" pointcut="execution(* com.bky.service.impl.*.*(..))" />
</aop:config>
</beans>
此处<import resource="spring-dao.xml" />:表示引入spring-dao.xml配置，相当于将二者配置合并到了一起。
如果springmvc将这个配置文件引入,那么可以不需要再web.xml中用监听器创建spring容器
(3)创建service接口
public interface usersService {
users getById(Integer id);
}
(4)创建实现类
@Service
public class usersServiceImpl implements usersService {
@Autowired
private usersMapper usersMapper;
@Override
public users getById(Integer id) {
return usersMapper.getById(id);
}
}
6.创建users-web模块
(1)导入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">
<parent>
<artifactId>users-parent</artifactId>
<groupId>com.bky</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>users-web</artifactId>
<packaging>war</packaging>
<dependencies>
<!--依赖service-->
<dependency>
<groupId>com.bky</groupId>
<artifactId>users-service</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<!--SpringMVC依赖-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
</dependency>
<!--servletAPI -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
</dependency>
</dependencies>
<build>
<!--插件-->
<plugins>
<!--
tomcat插件:运行的项目必须安装到了本地仓库
-->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<!--插件使用的相关配置-->
<configuration>
<!--端口号-->
<port>18081</port>
<!--写当前项目的名字(虚拟路径),如果写/，那么每次访问项目就不需要加项目名字了-->
<path>/</path>
<!--解决get请求乱码-->
<uriEncoding>UTF-8</uriEncoding>
</configuration>
</plugin>
</plugins>
</build>
</project>
(2)web.xml
该工程属于web工程，需要在web.xml中配置SpringMVC前端核心控制器和POST编码过滤器，代码如下：
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!--
SpringMVC:配置核心前端控制器
配置编码过滤器POST请求
配置SpringMVC核心配置文件
-->
<!--SpringMVC:配置核心前端控制器-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--指定SpringMVC核心配置文件-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<!--启动加载优先级[创建SpringMVCIOC容器]-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--配置编码过滤器POST请求-->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<!--指定编码-->
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--指定Spring配置文件-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring.xml</param-value>
</context-param>
<!--监听器，创建SpringIOC容器-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
(3)创建springmvc.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:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--包扫描-->
<context:component-scan base-package="com.bky" use-default-filters="false">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!--注解驱动-->
<mvc:annotation-driven />
<!--视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!--前缀-->
<property name="prefix" value="/WEB-INF/pages/" />
<!--后缀-->
<property name="suffix" value=".jsp" />
</bean>
<!--静态资源过滤配置-->
<mvc:resources mapping="/images/**" location="/images/" />
</beans>
(4)创建Controller接口(web层接口)
@Controller
@RequestMapping(value = "/users")
public class usersController {
@Autowired
private usersService usersService;
/***
* 根据ID查询
* @param id
* @param model
* @return
*/
@RequestMapping(value = "/one")
public String getById(Integer id, Model model){
users users = usersService.getById(id);
model.addAttribute("users",users);
return "users";
}
}
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