最近在写一个多模块的SpringBoot项目,基于过程总了一些总结,故把SpringBoot多个模块的项目创建记录下来。
首先,先建立一个父工程:
(1)在IDEA工具栏选择File->New->Project
(2)选择Spring Initializr,默认选择Default,然后点击Next:
(3)在输入框填写以下截图内容,点击Next
(4)直接点Next,无需选择
(5)直接点击Finish完成创建
(6)按照以上步骤,可以生成以下的项目目录结构:
(7)这时把没用的.mvn目录,src目录,mvnw还有mvnw.cmd都删除,最终只保留.gitignore和pom.xml,若是web项目,可在该pom.xml里添加以下依赖:
1<!--web特征-->
2<dependency>
3 <groupId>org.springframework.boot</groupId>
4 <artifactId>spring-boot-starter-web</artifactId>
5 <version>2.3.1.RELEASE</version>
6</dependency>
最终得到以下的父结构目录:
以上是创建父模块,下面创建子模块:
(1)在父模块的根目录fte上点右键,在弹出的框里选择New->Module
(2)选择Maven,点击Next
(3)填写以下内容,点击Next
(4)填写Module,点击Finish
(5)同理添加fte-controller,fte-dao,fte-service,fte-web,最终得到以下的目录结构:
(6)增加模块之间的依赖:
controller层添加以下依赖:
<dependencies><dependency><groupId>com.example</groupId><artifactId>fte-common</artifactId><version>0.0.1-SNAPSHOT</version></dependency><dependency><groupId>com.example</groupId><artifactId>fte-dao</artifactId><version>0.0.1-SNAPSHOT</version></dependency><dependency><groupId>com.example</groupId><artifactId>fte-service</artifactId><version>0.0.1-SNAPSHOT</version></dependency></dependencies>
service层添加以下依赖:
<dependencies><dependency><groupId>com.example</groupId><artifactId>fte-dao</artifactId><version>0.0.1-SNAPSHOT</version></dependency></dependencies>
(7)测试
在fte-controller创建com.zhu.fte.web包,增加以下两个类:
fteWebApplication类:
packagecom.zhu.fte.web; importorg.springframework.boot.SpringApplication; importorg.springframework.boot.autoconfigure.SpringBootApplication; publicclassfteWebApplication { publicstaticvoidmain(String[] args) { SpringApplication.run(fteWebApplication.class,args); } }
DemoController类
packagejava.com.zhu.fte.web; importorg.springframework.web.bind.annotation.GetMapping; importorg.springframework.web.bind.annotation.RequestMapping; importorg.springframework.web.bind.annotation.RestController; "demo") (publicclassDemoController { "test") (publicStringtest(){ return"hello world"; } }
运行发现出现错误:
出现错误:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test (default-test) on project fte-common: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.22.2:test failed: Plugin org.apache.maven.plugins:maven-surefire-plugin:2.22.2 or one of its dependencies could not be resolved: Could not transfer artifact junit:junit:jar:4.12 from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.52.215] failed: Connection timed out: connect -> [Help 1]
把缺少的org.apache.maven.plugins手动放到父工程的pom.xml里
1<build>2<plugins>3<plugin>4<groupId>org.apache.maven.plugins</groupId>5<artifactId>maven-clean-plugin</artifactId>6<version>2.5</version>7</plugin>8<plugin>9<groupId>org.apache.maven.plugins</groupId>10<artifactId>maven-source-plugin</artifactId>11<version>2.2</version>12</plugin>13<plugin>14<groupId>org.apache.maven.plugins</groupId>15<artifactId>maven-compiler-plugin</artifactId>16<version>3.0</version>17<configuration>18<source>1.8</source>19<target>1.8</target>20<encoding>${file.encoding}</encoding>21<!--编译的时候方法不改变方法参数名称,用于支持使用反射获取方法参数名称-->22<compilerArgument>-parameters</compilerArgument>23</configuration>24</plugin>25<plugin>26<groupId>org.apache.maven.plugins</groupId>27<artifactId>maven-install-plugin</artifactId>28<version>2.4</version>29</plugin>30<plugin>31<groupId>org.apache.maven.plugins</groupId>32<artifactId>maven-jar-plugin</artifactId>33<version>2.4</version>34<configuration>35<archive>36<manifest>37<addDefaultImplementationEntries>true38</addDefaultImplementationEntries>39</manifest>40</archive>41</configuration>42</plugin>4344<plugin>45<groupId>org.apache.maven.plugins</groupId>46<artifactId>maven-surefire-plugin</artifactId>47<version>2.13</version>48<configuration>49<argLine>-Xmx512M-Dfile.encoding=${file.encoding}</argLine>50</configuration>51</plugin>52</plugins>53</build>
运行fteWebApplication类里的main方法,默认端口为8080,访问http://localhost:8080/demo/test,正常出现以下情况:
按照以上步骤,就可以初步建立SpringBoot多模块的项目,下一章将基于这个基础搭建Mybatis以及其逆向工程。