所谓聚合项目,实际上就是对项目分模块,互联网项目一般来说按照业务分(订单模块、VIP模块、支付模块、CMS模块…),传统的软件项目,大多采用分层的方式(Dao、Serivce、Controller):
一、多模块结构
bobo-parent pom 管理 |-- bobo-manager pom 管理 |-- bobo-manager-dao jar |-- bobo-manager-service jar |-- bobo-manager-model jar |-- bobo-manager-commons jar |-- bobo-manager-controller war
二、创建项目
1.创建bobo-parent
pom文件不需要写代码,只是起管理作用
2.创建bobo-manager项目
指定bobo-parent为其父项目
3.分别创建四个jar项目
项目类型为 maven model
相同的步骤创建其他3个jar项目
4.创建bobo-manager-controller项目
<dependencies> <!-- 因为是web项目所以需要servlet --> <!-- https://mvnrepository.com/artifact/javax.servlet/servlet-api --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <!-- tomcat插件 --> <plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.2</version> <configuration> <!-- 端口号 --> <port>8082</port> <!-- /表示访问路径 省略项目名 --> <path>/</path> <!-- 设置编码方式 --> <uriEncoding>utf-8</uriEncoding> </configuration> </plugin> </plugins> </build>
三、设置相互依赖
1.依赖关系介绍
完整依赖关系
控制层的依赖关系
service层的依赖关系
dao层的依赖关系
2.实现依赖关系
2.1项目打包
1.先对bobo-parent项目打包
本地仓库就会生成打包的内容
2.再对bobo-manager项目打包
成功后本地仓库
2.2添加依赖关系
1.controller依赖service
<!-- 配置依赖的service坐标 --> <dependency> <groupId>com.dpb</groupId> <artifactId>bobo-manager-service</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency>
2.service依赖dao
<!-- 配置依赖的Dao坐标 --> <dependency> <groupId>com.dpb</groupId> <artifactId>bobo-manager-dao</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency>
同时controller也会依赖dao,间接依赖
3.dao依赖model和Commons
<dependencies> <!-- 配置依赖的model和Commons的坐标 --> <dependency> <groupId>com.dpb</groupId> <artifactId>bobo-manager-model</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.dpb</groupId> <artifactId>bobo-manager-commons</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> </dependencies>
3.Spring和SpringMVC整合
3.1在dao中引入spring
<properties> <spirng.version>4.3.3.RELEASE</spirng.version> </properties> <dependencies> <!-- 配置依赖的model和Commons的坐标 --> <dependency> <groupId>com.dpb</groupId> <artifactId>bobo-manager-model</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <dependency> <groupId>com.dpb</groupId> <artifactId>bobo-manager-commons</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <!-- 1.spring相关的jar包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spirng.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spirng.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spirng.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spirng.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/log4j/log4j --> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core --> <dependency> <groupId>org.apache.logging.log4j</groupId> <artifactId>log4j-core</artifactId> <version>2.6.2</version> </dependency> <!-- 数据库驱动包 这个是从私服上关联的--> <dependency> <groupId>com.dpb.oracle</groupId> <artifactId>ojdbc6-dpb</artifactId> <version>1.0.0</version> </dependency> </dependencies>
3.2在controller中引入springmvc
在controller中添加的是其他项目不需要用的jar包,比如servlet。
<properties> <spirng.version>4.3.3.RELEASE</spirng.version> </properties> <dependencies> <!-- 因为是web项目所以需要servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <!-- 配置依赖的service坐标 --> <dependency> <groupId>com.dpb</groupId> <artifactId>bobo-manager-service</artifactId> <version>0.0.1-SNAPSHOT</version> </dependency> <!-- 2.和springMvc相关的jar包 --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spirng.version}</version> </dependency> <!-- https://mvnrepository.com/artifact/jstl/jstl --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> </dependencies>
spring配置文件
<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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd"> <!-- 开启扫描 --> <context:component-scan base-package="com.dpb.service.impl,com.dpb.dao.impl"> <!-- 扫描的时候显示的排除controller注解 --> <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" /> </context:component-scan> <bean class="org.springframework.jdbc.datasource.DriverManagerDataSource" id="ds"> <property name="url" value="jdbc:oracle:thin:@localhost:1521:orcl" /> <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" /> <property name="username" value="pms" /> <property name="password" value="pms" /> </bean> <bean class="org.springframework.jdbc.core.JdbcTemplate" id="jdbcTemplate"> <constructor-arg name="dataSource" ref="ds"/> </bean> </beans>
SpringMVC的配置文件
<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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd 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-4.3.xsd"> <!-- 开启注解 --> <mvc:annotation-driven ></mvc:annotation-driven> <!-- 开启扫描 --> <context:component-scan base-package="com.dpb.controller"> <!-- 只扫描指定路径下的controller注解 --> <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> </beans>
3.3在controller中配置web.xml文件
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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_2_5.xsd" id="WebApp_ID" version="2.5" > <!-- 这里配置Spring配置文件的位置,param-name是固定的, param-value是文件位置 这个配置可以省略, 如果省略, 系统默认去/WEB-INF/目录下查找applicationContext.xml作为Spring的配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 前端控制器 --> <servlet> <servlet-name>spring-mvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>spring-mvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <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> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-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>*.css</url-pattern> </servlet-mapping> </web-app>
3.4实现查询操作
1.在bobo-manager-model中创建User对象
public class User { private int id; private String uname; private String nickname; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getUname() { return uname; } public void setUname(String uname) { this.uname = uname; } public String getNickname() { return nickname; } public void setNickname(String nickname) { this.nickname = nickname; } }
2.在bobo-manager-dao实现数据库操作
public interface IUserDao { public List<User> query(); }
@Repository public class UserDaoImpl implements IUserDao { @Resource JdbcTemplate jdbcTemplate; @Override public List<User> query() { String sql = "select * from t_sysuser"; return jdbcTemplate.query(sql, new BeanPropertyRowMapper<User>(User.class)); } }
3.在bobo-manager-service中操作Dao
public interface IUserService { public List<User> query(); }
@Service public class UserServiceImpl implements IUserService { @Resource private IUserDao dao; @Override public List<User> query() { // TODO Auto-generated method stub return dao.query(); } }
4.在bobo-manager-controller中处理请求响应
@Controller public class UserController { @Resource private IUserService userService; @RequestMapping("/query") public String query(Model m){ m.addAttribute("list", userService.query()); return "/user.jsp"; } }
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title here</title> </head> <body> <c:forEach items="${list }" var="u"> ${u.id } --${u.uname }--${u.nickname }<br> </c:forEach> </body> </html>
5.测试
对bobo-manager打包
然后启动 bobo-manager-controller项目
成功!!!