Springboot分模块项目搭建的实现_Java

一、创建聚合父工程

(1) eclipse -> file -> new -> other… -> maven -> maven project

在这里插入图片描述

(2) configure project

在这里插入图片描述

(3) pom.xml配置

<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">
	<description>springboot分模块</description>
	<modelversion>4.0.0</modelversion>
	<groupid>com.button</groupid>
	<artifactid>springboot-parent</artifactid>
	<version>0.0.1-snapshot</version>
	<packaging>pom</packaging>
	
	<properties>
		<project.build.sourceencoding>utf-8</project.build.sourceencoding>
		<project.reporting.outputencoding>utf-8</project.reporting.outputencoding>
		<java.version>1.8</java.version>
		<springboot-web.version>0.0.1-snapshot</springboot-web.version>
		<springboot-service.version>0.0.1-snapshot</springboot-service.version>
		<springboot-dao.version>0.0.1-snapshot</springboot-dao.version>
		<springboot-entity.version>0.0.1-snapshot</springboot-entity.version>
		<mybatis-spring-boot-starter.version>1.1.1</mybatis-spring-boot-starter.version>
		<hikaricp.version>2.4.13</hikaricp.version>
		<pagehelper.version>5.0.0</pagehelper.version>
		<pagehelper-spring-boot-autoconfigure.version>1.2.3</pagehelper-spring-boot-autoconfigure.version>
		<pagehelper-spring-boot-starter.version>1.2.3</pagehelper-spring-boot-starter.version>
		<json-lib.version>2.2.2</json-lib.version>
	</properties>

	<!-- 这里继承springboot提供的父工程 -->
	<parent>
		<groupid>org.springframework.boot</groupid>
		<artifactid>spring-boot-starter-parent</artifactid>
		<version>2.0.1.release</version>
		<relativepath />
	</parent>
	<!-- 这里声明多个子模块 -->
	<modules>
		<module>springboot-web</module>
		<module>springboot-service</module>
		<module>springboot-dao</module>
		<module>springboot-entity</module>
	</modules>
	
	<!-- 这里统一管理依赖的版本号 -->
	<dependencymanagement>
		<dependencies>
			<dependency>
				<groupid>com.button</groupid>
				<artifactid>springboot-web</artifactid>
				<version>${springboot-web.version}</version>
			</dependency>
			<dependency>
				<groupid>com.button</groupid>
				<artifactid>springboot-service</artifactid>
				<version>${springboot-service.version}</version>
			</dependency>
			<dependency>
				<groupid>com.button</groupid>
				<artifactid>springboot-dao</artifactid>
				<version>${springboot-dao.version}</version>
			</dependency>
			<dependency>
				<groupid>com.button</groupid>
				<artifactid>springboot-entity</artifactid>
				<version>${springboot-entity.version}</version>
			</dependency>
			<dependency>
				<groupid>org.mybatis.spring.boot</groupid>
				<artifactid>mybatis-spring-boot-starter</artifactid>
				<version>${mybatis-spring-boot-starter.version}</version>
			</dependency>
			<!--mysql链接依赖 -->
			<dependency>
				<groupid>com.zaxxer</groupid>
				<artifactid>hikaricp-java7</artifactid>
				<version>${hikaricp.version}</version>
			</dependency>
			<!-- 分页插件pagehelper -->
			<dependency>
				<groupid>com.github.pagehelper</groupid>
				<artifactid>pagehelper</artifactid>
				<version>${pagehelper.version}</version>
			</dependency>
			<dependency>
				<groupid>com.github.pagehelper</groupid>
				<artifactid>pagehelper-spring-boot-autoconfigure</artifactid>
				<version>${pagehelper-spring-boot-autoconfigure.version}</version>
			</dependency>
			<dependency>
				<groupid>com.github.pagehelper</groupid>
				<artifactid>pagehelper-spring-boot-starter</artifactid>
				<version>${pagehelper-spring-boot-starter.version}</version>
			</dependency>
			<!-- json -->
			<dependency>
				<groupid>net.sf.json-lib</groupid>
				<artifactid>json-lib</artifactid>
				<version>${json-lib.version}</version>
				<classifier>jdk15</classifier>
			</dependency>
		</dependencies>
	</dependencymanagement>

	<build>
		<plugins>
			<!-- java编译插件 -->
			<plugin>
				<groupid>org.apache.maven.plugins</groupid>
				<artifactid>maven-compiler-plugin</artifactid>
				<configuration>
					<source>1.8</source>
					<target>1.8</target>
					<encoding>utf-8</encoding>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

二、创建springboot-web

(1) 右键点击父工程 -> new -> other… -> maven -> maven module

在这里插入图片描述

(2) pom.xml

<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>
	<artifactid>springboot-web</artifactid>
	<packaging>jar</packaging>
	<name>springboot-web</name>
	<parent>
		<groupid>com.button</groupid>
		<artifactid>springboot-parent</artifactid>
		<version>0.0.1-snapshot</version>
	</parent>
	<!-- web模块相关依赖 -->
	<dependencies>
		<dependency>
			<groupid>com.button</groupid>
			<artifactid>springboot-service</artifactid>
		</dependency>
		<dependency>
			<groupid>org.springframework.boot</groupid>
			<artifactid>spring-boot-starter-web</artifactid>
		</dependency>
		<dependency>
			<groupid>org.springframework.boot</groupid>
			<artifactid>spring-boot-starter-test</artifactid>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupid>org.springframework.boot</groupid>
			<artifactid>spring-boot-devtools</artifactid>
			<optional>true</optional>
			<scope>true</scope>
		</dependency>
	</dependencies>
	<!--只需在启动类所在模块的pom文件：指定打包插件 -->
	<build>
		<plugins>
			<plugin>
				<groupid>org.apache.maven.plugins</groupid>
				<artifactid>maven-compiler-plugin</artifactid>
				<configuration>
					<source>1.8</source>
					<target>1.8</target>
				</configuration>
			</plugin>
			<plugin>
				<groupid>org.springframework.boot</groupid>
				<artifactid>spring-boot-maven-plugin</artifactid>
				<configuration>
					<jvmarguments>-dfile.encoding=utf-8</jvmarguments>
					<fork>true</fork><!-- 没有该配置，devtools 不生效 -->
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

解释：
pom文件中的如下配置：

<dependency>
	<groupid>org.springframework.boot</groupid>
	<artifactid>spring-boot-devtools</artifactid>
	<optional>true</optional>
	<scope>true</scope>
</dependency>

<build>
    <plugins>
        <plugin>
            <groupid>org.springframework.boot</groupid>
            <artifactid>spring-boot-maven-plugin</artifactid>
            <configuration>
                <!-- 没有该配置，devtools 不生效 -->
                <fork>true</fork>
            </configuration>
        </plugin>
    </plugins>
</build>

如上的两项配置，添加之后会打开springboot的热部署，这样每次修改文件之后，不用手动重新启动项目。配置热部署可以让项目自动加载变化的文件，省去的手动操作。(项目搭建好之后，启动项目，随便创建/修改一个文件并保存，会发现控制台打印 springboot 重新加载文件的log。)

三、创建springboot-service

参照如上创建方式

pom.xml

<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>
	<artifactid>springboot-service</artifactid>
	<packaging>jar</packaging>
	<name>springboot-service</name>
	<parent>
		<groupid>com.button</groupid>
		<artifactid>springboot-parent</artifactid>
		<version>0.0.1-snapshot</version>
	</parent>

	<dependencies>
		<dependency>
			<groupid>com.button</groupid>
			<artifactid>springboot-dao</artifactid>
		</dependency>
		<dependency>
			<groupid>org.springframework</groupid>
			<artifactid>spring-context-support</artifactid>
		</dependency>
	</dependencies>
</project>

四、创建springboot-dao

参照如上创建方式

pom.xml

<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>
	<artifactid>springboot-dao</artifactid>
	<packaging>jar</packaging>
	<name>springboot-dao</name>
	<parent>
		<groupid>com.button</groupid>
		<artifactid>springboot-parent</artifactid>
		<version>0.0.1-snapshot</version>
	</parent>

	<dependencies>
		<dependency>
			<groupid>com.button</groupid>
			<artifactid>springboot-entity</artifactid>
		</dependency>
		<dependency>
			<groupid>org.springframework.boot</groupid>
			<artifactid>spring-boot-starter-aop</artifactid>
		</dependency>
		<!--数据库连接jdbc依赖 -->
		<!-- jdbc连接数据库，因为要用hikaricp，所以需要将springboot中的tomcat-jdbc排除 -->
		<dependency>
			<groupid>org.springframework.boot</groupid>
			<artifactid>spring-boot-starter-jdbc</artifactid>
			<exclusions>
				<exclusion>
					<groupid>org.apache.tomcat</groupid>
					<artifactid>tomcat-jdbc</artifactid>
				</exclusion>
			</exclusions>
		</dependency>
		<!-- mybatis -->
		<dependency>
			<groupid>org.mybatis.spring.boot</groupid>
			<artifactid>mybatis-spring-boot-starter</artifactid>
		</dependency>
		<!--mysql链接依赖 -->
		<dependency>
			<groupid>mysql</groupid>
			<artifactid>mysql-connector-java</artifactid>
		</dependency>
		<dependency>
			<groupid>com.zaxxer</groupid>
			<artifactid>hikaricp-java7</artifactid>
		</dependency>

		<!-- 分页插件pagehelper -->
		<dependency>
			<groupid>com.github.pagehelper</groupid>
			<artifactid>pagehelper</artifactid>
		</dependency>
		<dependency>
			<groupid>com.github.pagehelper</groupid>
			<artifactid>pagehelper-spring-boot-autoconfigure</artifactid>
		</dependency>
		<dependency>
			<groupid>com.github.pagehelper</groupid>
			<artifactid>pagehelper-spring-boot-starter</artifactid>
		</dependency>
	</dependencies>
	<build>
		<!-- 一定要声明如下配置 -->
		<resources>
			<resource>
				<directory>src/main/resources</directory>
				<includes>
					<include>**/*.xml</include>
				</includes>
			</resource>
		</resources>
	</build>
</project>

五、创建springboot-entity

参照如上创建方式

pom.xml

<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>
	<artifactid>springboot-entity</artifactid>
	<packaging>jar</packaging>
	<name>springboot-entity</name>

	<parent>
		<groupid>com.button</groupid>
		<artifactid>springboot-parent</artifactid>
		<version>0.0.1-snapshot</version>
	</parent>
</project>

六、项目代码

1、springboot-dao

①usermapper.java

package com.button.project.dao;

import java.util.list;

import org.apache.ibatis.annotations.mapper;

import com.button.project.pojo.usermodel;

@mapper
public interface usermapper {
	list<usermodel> getuser();
}

②mapper/usermapper.xml

<?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.button.project.dao.usermapper">

    <resultmap id="user" type="map">  
        <result column="id" property="id" javatype="integer"/>  
        <result column="name" property="name" javatype="string"/>  
        <result column="age" property="age" javatype="integer"/>  
    </resultmap> 
	
	<select id="getuser" resulttype="com.button.project.pojo.usermodel">
	   select 
	       *
	   from
	       tb_user
	</select>
</mapper>

③config/application-mybatis.xml

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" 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/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 ">
	<bean id="txmanager"
		class="org.springframework.jdbc.datasource.datasourcetransactionmanager">
		<property name="datasource" ref="datasource"></property>
	</bean>
	<tx:annotation-driven transaction-manager="transactionmanager" />
</beans>

2、springboot-entity

usermodel.java

package com.button.project.pojo;

import java.io.serializable;

public class usermodel implements serializable{
	private static final long serialversionuid = 1l;
	private integer id;
	private string name;
	private integer age;
	public integer getid() {
		return id;
	}
	public void setid(integer id) {
		this.id = id;
	}
	public string getname() {
		return name;
	}
	public void setname(string name) {
		this.name = name;
	}
	public integer getage() {
		return age;
	}
	public void setage(integer age) {
		this.age = age;
	}
	@override
	public string tostring() {
		return "usermodel [id=" + id + ", name=" + name + ", age=" + age + "]";
	}
}

3、springboot-service

①userservice.java

package com.button.project.service;

import java.util.list;

import com.button.project.pojo.usermodel;

public interface userservice {
	list<usermodel> getuser();
}

②userserviceimpl.java

package com.button.project.service.impl;

import java.util.list;

import org.springframework.beans.factory.annotation.autowired;
import org.springframework.stereotype.service;

import com.button.project.dao.usermapper;
import com.button.project.pojo.usermodel;
import com.button.project.service.userservice;

@service
public class userserviceimpl implements userservice {
	
	@autowired
	private usermapper usermapper;
	
	@override
	public list<usermodel> getuser() {
		return usermapper.getuser();
	}

}

4、springboot-web

①usercontroller.java

package com.button.project.controller;

import java.util.list;

import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestmethod;

import com.button.project.pojo.usermodel;

@requestmapping(value = "/user", produces = "application/json;charset=utf-8")
public interface usercontroller {
	
	@requestmapping(value = "/getuser", method={requestmethod.post, requestmethod.get})
    list<usermodel> getuser();
}

②usercontrollerimpl.java

package com.button.project.controller.impl;

import java.util.list;

import org.springframework.beans.factory.annotation.autowired;
import org.springframework.web.bind.annotation.restcontroller;

import com.button.project.controller.usercontroller;
import com.button.project.pojo.usermodel;
import com.button.project.service.userservice;

@restcontroller
public class usercontrollerimpl implements usercontroller {
	
	@autowired
	private userservice userservice;
	
	@override
	public list<usermodel> getuser() {
		return userservice.getuser();
	}

}

③springbootapplicationservice

package com.button.project;

import org.springframework.boot.springapplication;
import org.springframework.boot.autoconfigure.springbootapplication;
import org.springframework.boot.web.servlet.servletcomponentscan;
import org.springframework.cache.annotation.enablecaching;
import org.springframework.context.annotation.importresource;
import org.springframework.transaction.annotation.enabletransactionmanagement;

@importresource("classpath:config/application-mybatis.xml")
@servletcomponentscan
@enablecaching
@enabletransactionmanagement
@springbootapplication
public class springbootapplicationservice {
	//项目启动入口
	public static void main(string[] args) {
		springapplication.run(springbootapplicationservice.class, args);
	}
}

④initconstantlistener.java

package com.button.project.init;

import javax.servlet.servletcontextevent;
import javax.servlet.servletcontextlistener;
import javax.servlet.annotation.weblistener;

import org.slf4j.logger;
import org.slf4j.loggerfactory;

@weblistener
public class initconstantlistener implements servletcontextlistener {
	private static final logger logger = loggerfactory.getlogger(initconstantlistener.class);
	
	@override
	public void contextinitialized(servletcontextevent sce) {
		logger.info("初始化数据.");
	}

	@override
	public void contextdestroyed(servletcontextevent sce) {
		logger.info("销毁数据.");
	}
}

⑤application.yml

server:
    servlet:
        context-path: /button
    port: 8080
    uri-encoding: utf-8
    
logging: 
    config: classpath:logback.xml
    
spring: 
    datasource: 
        url: jdbc:mysql://*********:3306/button-pro?useunicode=true&characterencoding=utf-8&autoreconnect=true&allowmultiqueries=true&usessl=true
        username: *****
        password: ******
        driver-class-name: com.mysql.jdbc.driver
        type: com.zaxxer.hikari.hikaridatasource
        hikari:
            minimum-idle: 5
            maximum-pool-size: 15
            idle-timeout: 30000
            pool-name: datebookhikaricp
            max-lifetime: 1800000
            connection-timeout: 30000
            connection-test-query: 'select 1'

mybatis:
    # 加载mapper
    mapper-locations: "classpath:mapper/*.xml"

mapper:
    not-empty: false
    identity: mysql
    
pagehelper:
    helperdialect: mysql
    reasonable: true
    supportmethodsarguments: true
    params: count=countsql

⑥logback.xml

<?xml version="1.0" encoding="utf-8"?>
<configuration scan="true" scanperiod="30 seconds">
    <property name="log_home" value="/com/button/" />

	<appender name="stdout" class="ch.qos.logback.core.consoleappender">
		<encoder class="ch.qos.logback.classic.encoder.patternlayoutencoder">
			<pattern>%d{yyyy-mm-dd hh:mm:ss.sss} [%thread] %-5level %logger{50} -%msg%n</pattern>
		</encoder>
	</appender>
	<appender name="file"
		class="ch.qos.logback.core.rolling.rollingfileappender">
		<file>${log_home}/springboot.log</file>
		<rollingpolicy class="ch.qos.logback.core.rolling.timebasedrollingpolicy">
			<filenamepattern>
				${log_home}/springboot.log.%d{yyyy-mm-dd}.%i.log
			</filenamepattern>
			<timebasedfilenamingandtriggeringpolicy class="ch.qos.logback.core.rolling.sizeandtimebasedfnatp">
                <maxfilesize>100mb</maxfilesize>
            </timebasedfilenamingandtriggeringpolicy>
		</rollingpolicy>
		<encoder class="ch.qos.logback.classic.encoder.patternlayoutencoder">
			<pattern>%d{hh:mm:ss.sss} [%thread] %-5level %logger{50} -%msg%n</pattern>
		</encoder>
	</appender>

	<root level="debug">
		<appender-ref ref="stdout" />
		<appender-ref ref="file" />
	</root>
</configuration>

七、完整项目结构如下：

在这里插入图片描述

注：一个项目从开发，测试再到生产，可能会使用到不同的配置信息，每次去修改application.yml文件中的信息就显得特别麻烦，可以使用如下方式解决。
比如项目运行环境开发(dev)，测试(test)，生产(prod)，我们可以在src/main/resources文件夹下创建如下四个文件：
application-dev.yml

server:
    servlet:
        context-path: /button-dev
    port: 8080
    uri-encoding: utf-8

application-test.yml

server:
    servlet:
        context-path: /button-test
    port: 8081
    uri-encoding: utf-8

application-prod.yml

server:
    servlet:
        context-path: /button-prod
    port: 8082
    uri-encoding: utf-8

这三个文件配置好项目不同环境的配置信息
application.yml文件配置如下：

spring:
    profiles:
        active: dev

解释：active后可以配置dev、test、prod，不同的配置会去加载不同的配置信息，这样就不用来回修改配置信息了。

更多springboot内容，请查询官方文档
https://docs.spring.io/spring-boot/docs/1.5.8.release/reference/html/

源码地址：https://gitee.com/superbutton/springboot-components/tree/develop/springboot-moudle

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Springboot分模块项目搭建的实现

2024年10月25日 • Java •我要评论

一、创建聚合父工程

二、创建springboot-web

三、创建springboot-service

四、创建springboot-dao

五、创建springboot-entity

六、项目代码

1、springboot-dao

2、springboot-entity

3、springboot-service

4、springboot-web

七、完整项目结构如下：

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